TPS657120YFFR [TI]
射频前端电源管理 IC (PMIC) | YFF | 30 | -40 to 85;型号: | TPS657120YFFR |
厂家: | TEXAS INSTRUMENTS |
描述: | 射频前端电源管理 IC (PMIC) | YFF | 30 | -40 to 85 射频 集成电源管理电路 |
文件: | 总63页 (文件大小:2159K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
TPS657120
针对基带和射频-功率放大器 (RF-PA) 电源的电源管理单元
(PMU)
Data Manual
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Literature Number: ZHCSBY8
December 2013
TPS657120
www.ti.com.cn
ZHCSBY8 –DECEMBER 2013
内容
1
2
介绍 ................................................................................................................................... 6
1.1
1.2
1.3
1.4
特性 ........................................................................................................................... 6
应用 ........................................................................................................................... 6
说明 ........................................................................................................................... 6
方框图 & 引脚功能 .......................................................................................................... 7
1.4.1
功能方框图 ........................................................................................................ 7
引脚分配 ........................................................................................................... 8
1.4.2
器件特性 ............................................................................................................................ 10
2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.8
2.9
订购信息 .................................................................................................................... 10
缺省设置 .................................................................................................................... 10
ABSOLUTE MAXIMUM RATINGS ...................................................................................... 10
THERMAL INFORMATION .............................................................................................. 11
RECOMMENDED OPERATING CONDITIONS ....................................................................... 11
Electrical Characteristics - general functions .......................................................................... 12
Electrical Characteristics - DCDC1/2 ................................................................................... 12
Electrical Characteristics - DCDC3 ..................................................................................... 14
Electrical Characteristics - RF-LDOs ................................................................................... 15
2.10 Electrical Characteristics – digital inputs, digital outputs ............................................................. 16
2.11 Electrical Characteristics – Thermal Shutdown, undervoltage lockout ............................................. 18
2.12 Electrical Characteristics – RFFE Timing parameters ................................................................ 19
2.13 MIPI RFFE 已接收时钟信号限制 ........................................................................................ 19
2.14 MIPI RFFE 总线激活数据传输时序技术规格 ........................................................................... 19
2.15 MIPI RFFE 总线驻停周期时序 ........................................................................................... 20
2.16 MIPI RFFE 数据设置和保持时序 ........................................................................................ 20
2.17 典型特征 .................................................................................................................... 21
2.17.1 参数测量信息 .................................................................................................... 21
2.18 典型特征(继续) ......................................................................................................... 22
详细说明 ............................................................................................................................ 29
3
3.1
3.2
3.3
3.4
3.5
3.6
3.7
3.8
3.9
线性稳压器 ................................................................................................................. 29
降压转换器 DCDC1 和 DCDC2 .......................................................................................... 29
省电模式 .................................................................................................................... 29
动态电压定位(可选) .................................................................................................... 30
软启动/使能 ................................................................................................................. 30
针对 DCDC1,DCDC2 和 DCDC3 的动态电压定位 (DVS) .......................................................... 31
100% 占空比低压降运行 .................................................................................................. 31
180°异相操作 .............................................................................................................. 31
针对 DCDC1,DCDC2,DCDC3,LDO1 和 LDO2 的欠压闭锁 .................................................... 31
3.10 输出电压放电 ............................................................................................................... 32
3.11 短路保护 .................................................................................................................... 32
3.12 输出电压监控 ............................................................................................................... 32
3.13 降压转换器和 LDO 启用;引脚 CLK_REQ1 和 CLK_REQ2 ......................................................... 32
3.14 降压转换器 DCDC3 ....................................................................................................... 32
3.15 DCDC3_SEL 控制 ......................................................................................................... 32
3.15.1 DCDC3_SEL 控制 - 电压映射选项 ........................................................................... 32
3.15.2 DCDC3_SEL 控制 - 针对 DCDC3 至 DCDC3_SEL 的负电流限制来映射使能信号;额外选项只用
于修订版本 1.1 和更高版本 .................................................................................... 33
3.16 旁路开关 .................................................................................................................... 33
3.17 DCDC3 输出电压斜升支持。 ............................................................................................ 33
3.18 VCON 解码器 .............................................................................................................. 33
3.19 热监控和关断 ............................................................................................................... 34
3.20 GPIO ........................................................................................................................ 34
2
内容
版权 © 2013, Texas Instruments Incorporated
TPS657120
www.ti.com.cn
ZHCSBY8 –DECEMBER 2013
3.21 nRESET 输入;ADR_SELECT 输入 .................................................................................... 35
3.22 电源状态机 ................................................................................................................. 35
3.23 内部加电和断电排序的执行 .............................................................................................. 35
3.24 针对推挽输出级/接口的 VDDIO 电压 .................................................................................... 35
3.25 TPS657120 接通关闭操作 ................................................................................................ 36
3.25.1 TPS657120 加电 ................................................................................................ 36
3.25.2 驱动 DCDC1,DCDC2 和 LDO1 的 TPS657120 PWR_REQ ............................................ 36
3.26 MIPI RFFE 接口 ........................................................................................................... 38
3.26.1 MIPI RFFE 写入周期 ........................................................................................... 38
3.26.2 MIPI RFFE 读取周期 ........................................................................................... 39
内存映射 ............................................................................................................................ 40
4
5
4.1
寄存器说明 ................................................................................................................. 40
应用范围 ............................................................................................................................ 56
5.1
直流到直流转换器 ......................................................................................................... 56
5.1.1
输出滤波器设计(电感器和输出电容器) .................................................................... 56
5.1.1.1 电感器选择 .......................................................................................... 56
5.1.1.2 输出电容器选择 ..................................................................................... 57
5.1.1.3 输入电容器 / 输出电容器选择 ..................................................................... 57
5.1.1.4 DCDC1,DCDC2 和 DCDC3 上的电压变化 .................................................... 58
5.2
5.3
布局布线注意事项 ......................................................................................................... 58
应用电路原理图 ............................................................................................................ 58
版权 © 2013, Texas Instruments Incorporated
内容
3
TPS657120
ZHCSBY8 –DECEMBER 2013
www.ti.com.cn
附图目录
1-1
2-1
2-2
2-3
2-4
3-1
3-2
3-3
3-4
3-5
3-6
5-1
TPS657120 方框图 ................................................................................................................
8
已接收时钟信号限制.............................................................................................................. 19
总线激活数据传输时序技术规格 ................................................................................................ 20
总线驻停周期时序 ................................................................................................................ 20
数据设置和保存计时.............................................................................................................. 20
软启动.............................................................................................................................. 31
GPIO 块 ........................................................................................................................... 34
TPS657120 加电 ................................................................................................................. 36
TPS657120 断电 ................................................................................................................. 37
RFFE 写入周期 ................................................................................................................... 39
RFFE 读取周期 ................................................................................................................... 39
针对 SP30 RF 电源管理集成电路 (PMIC) 的手机电池连接 ................................................................. 58
4
附图目录
版权 © 2013, Texas Instruments Incorporated
TPS657120
www.ti.com.cn
ZHCSBY8 –DECEMBER 2013
附表目录
1-1
4-1
4-2
4-3
4-4
4-5
4-6
5-1
5-2
端子功能 ............................................................................................................................
9
DCDCx TSTEP Settings......................................................................................................... 42
VCON Gain Settings ............................................................................................................. 45
VCON Offset Settings ........................................................................................................... 45
DCDC1 and DCDC2 Voltage Settings ........................................................................................ 46
DCDC3 Voltage Settings ....................................................................................................... 47
LDO Voltage Settings............................................................................................................ 50
经测试的电感器................................................................................................................... 57
已经测试电容器................................................................................................................... 57
版权 © 2013, Texas Instruments Incorporated
附表目录
5
TPS657120
ZHCSBY8 –DECEMBER 2013
www.ti.com.cn
针对基带和射频-功率放大器 (RF-PA) 电源的电源管理单元 (PMU)
查询样片: TPS657120
1
介绍
1.1 特性
1
– ECO 模式
• 3 个降压转换器:
– LDO 的 VIN范围:
– VIN 范围从 2.8V 至 5.5V
•
•
LDO1:2.0V 至 5.5V
LDO2:2.8V 至 5.5V
– 轻负载电流状态下的省电模式
– PWM 模式中的输出电压准确度为 ±2%
• 2 个通用输入输出 (GPIO)
• 过热保护
– 每个 DCDC1 和 DCDC2 转换器的静态电流典型
值为 16μA
– DCDC3 转换器的静态电流典型值为 26μA
– 动态电压调节
– 最低压降占空比为 100%
• 2 个低压降稳压器 (LDO):
– 2 x 10mA 输出电流
• 旁路开关
– 与为 RF-PA 供电的 DCDC3 一同使用
• 接口
– 26MHz 移动行业处理器接口 (MIPI) 射频前端
(RFFE) 接口
• 欠压闭锁
– 低噪音 RF-LDO
• 灵活的加电和断电排序
• 2.5mm x 2.3mm 晶圆级芯片封装 (WCSP) 封装,
引线间距为 0.4mm
– 输出电压范围 1.2V 至 3.4V
– 32μA 静态电流
– 独立的电源输入支持预调节
1.2 应用
•
•
数据卡
智能手机
1.3 说明
TPS657120 提供 3 个输出电流高达 2A 的可配置降压转换器。 它还包含 2 个 LDO 稳压器。 LDO1 可直接
由输入电压或者由诸如 DCDC1 或 DCDC2 的一个预稳压电源供电。 到 LDO2 的输入电压可被用作一个模
拟电源输入,因此,需要将它连接至一个与 VINDCDC1/2 和 VINDCDC3 处于同一电压电平的输入电压上。
内部加电/断电控制器是可配置的,并能够支持任何加电/断电序列(基于一次性可编程 (OTP))。 所有 LDO
和直流到直流转换器由一个 MIPI RFFE 兼容接口和/或由引脚 PWRON,CLK_REQ1 和 CLK_REQ2 进行控
制。 此外,还有一个 nRESET 以及一个 RFFE 地址选择 (ADR_SELECT) 输入,这两个输入中任何一个可
被用作具有 1mA 电流吸收能力的通用 I/O。 TPS657120 采用 6 焊球 x 5 焊球的 WCSP 封装 (2.5mm x
2.3mm),引线间距 0.4mm。
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date. Products conform to
specifications per the terms of the Texas Instruments standard warranty. Production
processing does not necessarily include testing of all parameters.
版权 © 2013, Texas Instruments Incorporated
English Data Sheet: SLVSBO3
TPS657120
www.ti.com.cn
ZHCSBY8 –DECEMBER 2013
1.4 方框图 & 引脚功能
1.4.1 功能方框图
10uF
TPS657120
VINDCDC1/2
VIN
C2V5
2.2uH
DCDC1
300mA
1.7V
Q12
Q13
POWER
CONTROL
SW1
RF transceiver
low voltage supply
1uF
VDCDC1
10uF
SDATA
SCLK
PGND1/2
MIPI RFFE
i/f
2.2uH
Q22
Q23
DCDC2
250mA
2.65V
SW2
RF transceiver
high voltage supply
VCON_DCDC3
DCDC3_SEL
10uF
VDCDC2
22uF
CLK_REQ1
CLK_REQ2
VINDCDC3
VIN
1.5uH
Q22
Q23
DCDC3
2A
0.1V to 3.8V
SW3
RF-PA supply
PWRON
VDDIO
4.7uF
2.2uF
VDCDC3
2.2uF are placed at the
input of the RF-PA
PGND3
BYPASS
switch
GPIO0 (nReset)
GPIO1 (ADR_SELECT)
GPIO
VINLDO1
VLDO1
VIN
LDO1
1.8V
1uF
(1.2V-3.3V, 50mV
step @10mA)
Low noise
4.7uF
VIN_ANA / VINLDO2
VIN
1uF
LDO2
(1.2V-3.3V, 50mV
step @10mA)
Low noise
100nF
2.8V
BIAS
VLDO2
VREF1V0
AGND
4.7uF
Thermal
shutdown
图 1-1. TPS657120 方框图
版权 © 2013, Texas Instruments Incorporated
介绍
7
TPS657120
ZHCSBY8 –DECEMBER 2013
www.ti.com.cn
1.4.2 引脚分配
YFF 封装
(底视图)
TPS657120 (bottom view)
PGND
1/2
SW3
SW3
VDCDC3
VDCDC3
SW2
VINDCDC3
F2
F1
F3
F4
F5
VINDCDC
1/2
VDCDC2
VINDCDC3
E2
E1
D1
E3
E4
D4
C4
E5
D5
C5
VCON_
DCDC3
DCDC3
_SEL
nRESET
(GPIO_0)
SW1
PGND3
D2
C2
D3
C2V5
VDCDC1
SCLK
VDDIO
PWRON
VLDO1
SDATA
C1
C3
ADR_SEL
(GPIO_1)
CLK_REQ2
AGND
CLK_REQ1
B5
B1
A1
B2
B3
B4
VIN_ANA
VINLDO2
VLDO2
Vref1V0
VINLDO1
A2
A3
A4
A5
YFF 封装
(顶视图)
TPS657120 (top view)
PGND
1/2
SW2
VDCDC3
VDCDC3
SW3
SW3
VINDCDC3
F2
F5
F4
E4
F3
F1
VINDCDC
1/2
VINDCDC3
E2
VDCDC2
E5
D5
E3
E1
D1
C1
VCON_
DCDC3
nRESET
(GPIO_0)
DCDC3
_SEL
PGND3
VDDIO
SW1
D4
D3
D2
C2
SDATA
SCLK
C2V5
VDCDC1
C5
C4
C3
ADR_SEL
(GPIO_1)
AGND
CLK_REQ2
B4
PWRON
VLDO1
CLK_REQ1
B3
B1
B5
A5
B2
VIN_ANA
VINLDO2
VLDO2
VREF1V0
VINLDO1
A3
A2
A1
A4
8
介绍
版权 © 2013, Texas Instruments Incorporated
TPS657120
www.ti.com.cn
ZHCSBY8 –DECEMBER 2013
表 1-1. 端子功能
端子
名称
I/O
说明
编号
TPS657120
基准
VIN_ANA /
VINLDO2
模拟电源电压输入;LDO2 的电源输入;连接至与 VINDCDC1/2 和 VINDCDC3 处于同一电压
电平的电压
A3
I
VREF1V0
C2V5
A5
C5
B5
O
O
-
LDO 基准旁路引脚;将一个 100nF 电容器接地 (GND)
逻辑电路的内部电压;将一个 1uF 电容器接地
模拟接地 (AGND)
GPIO
模拟接地连接;连接至印刷电路板 (PCB) 上的 PGND
主要功能是低电平有效复位输入 (nRESET),为了实现启动,引脚需要根据缺省值被上拉到逻辑
高电平。 在 OTP 内存的内部配置已经被读取后,它也可被指定为通用 I/O。它的推挽级以
VDDIO (VIF) 为基准。
nRESET (GPIO0
)
D4
B2
I/O
I/O
GPIO1
(ADR_SELECT)
通用 I/O;推挽至 VDDIO (VIF);为 USID[0] 上的 RFFE 接口选择其它最低有效位 (LSB) 位地
址
降压转换器
VINDCDC1/2
VDCDC1
SW1
E5
C4
I
I
到 DCDC1 和 DCDC2 转换器的电源输入;连接至 VINDCDC3
针对 DCDC1 的电压感测(反馈)输入
D5
O
-
DCDC1 的开关节点;连接输出电感器
PGND1/2
VDCDC2
SW2
F4
针对 DCDC1 和 DCDC2 转换器的电源接地 (GND) 连接
针对 DCDC2 的电压感测(反馈)输入
E4
I
F5
O
I
DCDC2 的开关节点;连接输出电感器
VINDCDC3
VDCDC3
SW3
E2,F2
E3,F3
E1,F1
D1
到 DCDC3 转换器和旁路开关的电源输入;连接至 VINDCDC1,VINDCDC2 和 Vcc
针对 DCDC3 的电压感测(反馈)输入和旁路输出
DCDC3 的开关节点;连接输出电感器
I
O
-
PGND3
针对 DCDC3 转换器的电源 GND 连接
低压降稳压器
VINLDO1
VLDO1
A2
A1
A4
I
LDO1 的电源输入
LDO1 输出
O
O
VLDO2
LDO2 输出
接口
SDATA
C2
C3
I/O
I
RFFE 数据引脚
RFFE 时钟输入
SCLK
使能和控制
CLK_REQ1
CLK_REQ2
DCDC3_SEL
VCON_DCDC3
PWRON
B3
B4
D2
D3
B1
I
I
I
I
I
被用来启用和禁用电源的时钟请求 signal1
被用来启用和禁用电源的时钟请求 signal2
改变设置之间输出电压的电压缩放输入
针对 DCDC3 的模拟电压缩放
使能输入;LOW = OFF;HIGH = ON;输入电压范最高为 VINDCDCx,VIN_ANA
针对 GPIO 和输出级的电源电压输入将设定高电平电压(I/O 电压);如果 VDDIO 不在有效运
行范围内,TPS657120 被保持在复位状态
VDDIO
C1
I
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介绍
9
TPS657120
ZHCSBY8 –DECEMBER 2013
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2
器件特性
2.1 订购信息
TA
产品型号
芯片尺寸
选项
封装代码
封装
封装标记(1)
TPS657120YFF
生产材料
D = 2500µm ± 25µm
E = 2300µm ± 25µm
请见
缺省设置表
-40°C 至 85°C
YFF
WCSP
TPS657120
(1) YFF 封装可以以卷带形式供货。 添加后缀 R (TPS657120YFFR) 来订购每卷 3000 个部件。 添加后缀 T (TPS657120YFFT) 来订购每卷
250 个部件
2.2 缺省设置
直流到直流转换器和 LDO 的缺省输出电压请见以下列表。 对于 DCDC1 至 DCDC3 和 LDO1 以及 LDO2,
有两个定义输出电压的寄存器。 DCDC3_SEL 可实现两个输出电压(在 DCDC3 的 _OP 和 _AVS 寄存器内
定义)间的切换。 对于其它直流到直流转换器和 LDO,切换可由一个寄存器位实现。
转换器 / LDO 寄存器
DCDC1_OP / DCDC1_AVS
DCDC2_OP / DCDC2_AVS
DCDC3_OP / DCDC3_AVS
LDO1_OP
TPS657120 缺省输出电压设置
1.7V / 1.7V
2.65V / 2.65V
3.6V / 3.6V
1.8V
LDO2_OP
2.8V
2.3 ABSOLUTE MAXIMUM RATINGS
over operating free-air temperature range (unless otherwise noted)(1)
VALUE
UNIT
MIN
MAX
all pins except A/PGND pins and pins listed
below with respect to AGND
–0.3
6
V
VLDO1, VLDO2, VDDIO with respect to AGND
–0.3
–0.3
3.6
5.5
V
V
Voltage
Current
pin VDCDC3 with respect to AGND
pins SDATA, SCLK, DCDC3_SEL , GPIO_0,
GPIO_1, CLK_REQ1, CLK_REQ2 , with
respect to AGND
–0.3
VDDIO + 0.3
V
all non power pins
power pins
5
2
mA
A
Operating free-air temperature, TA
Maximum junction temperature, TJ
Storage temperature, TST
–40
–65
85
°C
°C
°C
125
150
(1) Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings
only and functional operation of the device at these or any other conditions beyond those indicated under recommended operating
conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
10
器件特性
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ZHCSBY8 –DECEMBER 2013
2.4 THERMAL INFORMATION
TPS657120
THERMAL METRIC
YFF
30 PINS
58.8
0.3
UNITS
θJA
Junction-to-ambient thermal resistance
Junction-to-case (top) thermal resistance
Junction-to-board thermal resistance
θJCtop
θJB
27
°C/W
ψJT
Junction-to-top characterization parameter
Junction-to-board characterization parameter
Junction-to-case (bottom) thermal resistance
1.4
ψJB
26.9
n/a
θJCbot
2.5 RECOMMENDED OPERATING CONDITIONS
over operating free-air temperature range (unless otherwise noted)
MIN
NOM
MAX UNIT
DCDC CONVERTERS
VINDCDC1, Input voltage range for step-down converter DCDC1, DCDC2, DCDC3
2.8
5.5
V
VINDCDC2,
VINDCDC3
Output voltage range for step-down converter DCDC1, DCDC2
Output voltage range for step-down converter DCDC3
0.8
0.1
1
3.3
3.6
2.9
2.2
V
V
L1, L2
L3
Inductance at L1, L2
Inductance at L3
2.2
1.5
10
22
10
6
μH
μH
μF
μF
μF
μF
1
(1)
CVINDCDC1/2 Input Capacitance at VINDCDC1/2
4.7
10
4.7
2.0
(1)
CVINDCDC3
Input Capacitance at VINDCDC3
(1)
COUTDCDC1,2 Output Capacitance at DCDC1 and DCDC2
22
12
(1)
COUTDCDC3 Output Capacitance at DCDC3
LDOs; generic
VINLDO1
Input voltage range for LDO1
2.0
2.8
5.5
5.5
V
V
VINLDO2 = Input voltage range for LDO2; as this pin is used as the analog suply voltage, it
analog
needs to be tied to VINDCDCx
supply
voltage
VIN_ANA
VLDO1
VLDO2,
,
Output voltage range for LDOs
1.2
0.5
1
3.4
V
(1)
CINLDO1
CINLDO2
Input Capacitance on LDO supply pins
μF
μF
(1)
CoutLDO1,
CoutLDO2
Output Capacitance on LDO1, LDO2
4.7
VVDDIO
CVDDIO
C(C2V5)
for RFFE interface at 1.2V or 1.8V
Input Capacitance on VDDIO
1.1
100
0.5
47
1.95
V
nF
μF
nF
capacitance at internal supply at pin C2V5
1
10
C(VREF1V0 bypass capacitance at internal reference VREF1V0
)
100
220
TA
TJ
Operating ambient temperature
Operating junction temperature
–40
–40
85
°C
°C
125
(1) Ceramic capacitors show an effect called DC BIAS EFFECT. With a dc voltage applied to a ceramic capacitor , the effective capacitance
is reduced. The table above therefore lists the minimum value as CAPACITANCE. In order to meet the minimum capacitance, the
nominal value may have to be scaled accordingly to take the drop of capacitance into account for a given dc voltage at the LDOs of
dcdc converters. Input capacitors need to be placed as close as possible to the pins of TPS657120.
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2.6 Electrical Characteristics - general functions
TA = –40°C to +85°C, typical values are at TA = +25°C (unless otherwise noted), see parameter measurement information
PARAMETER
TEST CONDITION
MIN
TYP
MAX
UNIT
ISB
IQ
Standby Supply
Current
PWRON=LOW; total current in STANDBY state into pins
VINDCDC1/2, VINDCDC3 and VIN_ANA
55
μA
Quiescent Supply
Current
PWRON=HIGH, LDOs and DCDC converters =OFF
60
μA
μA
IQ
Quiescent Supply
Current
PWRON=HIGH, LDO1 and LDO2 and DCDC1 and
DCDC2 = enabled in normal mode
170
2.7 Electrical Characteristics - DCDC1/2
TA = –40°C to +85°C, typical values are at TA = +25°C (unless otherwise noted), see parameter measurement information
PARAMETER
Input Voltage Range
TEST CONDITION
MIN
2.8
TYP
MAX
5.5
UNIT
V
VIN
VDCDC1
VDCDC2
VDCDC1
VDCDC2
IOUT(DCDCx)
DCDCx Output
Voltage Range
25mV steps up to 2.2V; 50mV steps above 2.2V
0.8
3.3
V
Default Output
Voltage
1.7
V
2.65
Continuous Output
Current
DCDC1 (VINDCDC1 ≥ 2.8V)
DCDC2 (VINDCDC2 ≥ 2.8V)
300
250
25
mA
IQ
Quiescent Current
Accuracy
ILOAD = 0 mA, DCDCx_MODE = 0, Device not switching;
for each DCDC1 and DCDC2
16
μA
mA
%
ILOAD = 0 mA, DCDCx_MODE = 1, Device switching; for
each DCDC1 and DCDC2
3.5
VDCDC1/2
DCDCx_MODE = 1, VIN = 3.0V to 5.5V, ILOAD = 0mA,
tolerance is +/- 2% or +/-25mV whatever is larger
–2
-3
2
DCDCx_MODE = 0, VIN = 3.0V to 5.5V, ILOAD = 0mA,
+1% voltage scaling active
1.25
0.25
2.4
3.5
%
Load Regulation
DCDCx_MODE = 1, VIN = 3.0V to 5.5V; ILOAD = 25mA to
225mA; for DCDC1 and DCDC2
%/A
MHz
mΩ
mΩ
μA
fSW
Switching
Frequency
DCDCx_MODE = 1, VIN = 3.0V to 5.5V
1.9
2.6
400
350
2
RDS(ON)
RDS(ON)
ILK_HS
High Side FET On- for DCDC1 and DCDC2 with VINDCDCx = 3.6V, D =
Resistance
250
220
100%
Low Side FET On-
Resistance
for DCDC1 and DCDC2 with VINDCDCx = 3.6V, D =
100%
High Side FET
Leakage Current
TJ = 85°C; DCDC1, DCDC2;
VINDCDC1=VINDCDC2=5.5V
ILK_LS
Low Side FET
Leakage Current
TJ = 85°C; DCDC1, DCDC2;
VINDCDC1=VINDCDC2=5.5V
3
μA
IHS_LIMF
ILS_LIMF
IHS_LIMF
ILS_LIMF
High Side Forward
Current Limit
2.9V ≤ VIN_DCDC1 ≤ 5.5V; for DCDC1
2.9V ≤ VIN_DCDC1 ≤ 5.5V; for DCDC1
2.9V ≤ VIN_DCDC2 ≤ 5.5V; for DCDC2
2.9V ≤ VIN_DCDC2 ≤ 5.5V; for DCDC2
VIN = 3.6V; VOUT = 1.7V to 2.65V; Io=10mA to 300mA;
500
500
425
425
650
650
600
600
10
800
800
775
775
25
mA
mA
mA
mA
mVpp
%
Low Side Forward
Current Limit
High Side Forward
Current Limit
Low Side Forward
Current Limit
DCDC1, DCDC2
output voltage ripple L=1.5uH, RSL=50mR; Co=10uF
efficiency
VINDCDCx=3.7V, Vo=1.7V or Vo=2.65V; Io=80mA to
150mA
88
80
93
efficiency
efficiency
VINDCDCx=3.7V, Vo=1.7V or Vo=2.65V; Io=300uA
VINDCDCx=3.7V, Vo=1.7V or Vo=2.65V; Io=100uA
%
%
45
12
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Electrical Characteristics - DCDC1/2 (continued)
TA = –40°C to +85°C, typical values are at TA = +25°C (unless otherwise noted), see parameter measurement information
PARAMETER
TEST CONDITION
MIN
TYP
MAX
UNIT
pulse skipping
threshold
output current when device switches from PFM to PWM
automatically; VIN = 3.6V, VOUT = 1.7V
140
mA
output current when device switches from PFM to PWM
automatically; VIN = 3.6V, VOUT = 2.65V
60
40
PSRR
power supply
rejection ratio
VIN = 3.6V, ILOAD = 150mA, 10Hz < f < 10kHz, Vo=1.7V
and Vo=2.65V
dB
output noise
VIN = 3.6V, ILOAD = 100mA, Vo=1.7V and Vo=2.65V
1kHz < f < 100kHz
μV/√Hz
2
100kHz < f < 1MHz
0.2
0.1
1MHz < f < 10MHz; not including f(sw)
VDCDCx falling
VDCDCPG-falling
VDCDCPG-rising
tStart
Power Good
Threshold
VDCDC
x-15%
VDCDC
x-7%
Power Good
Threshold
VDCDCx rising
VDCDC
x-3%
Start-up time
Time to start switching, measured from end of MIPI
command enabling converter
225
μs
tRamp
VOUT Ramp UP time Time to ramp from 5% to 95% of VOUT
Discharge resistor
200
600
μs
RDischarge
250
400
Ω
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2.8 Electrical Characteristics - DCDC3
TA = –40°C to +85°C, typical values are at TA = +25°C (unless otherwise noted), see parameter measurement information
PARAMETER
TEST CONDITIONS
MIN
2.8
TYP
MAX
5.5
UNIT
VIN
Input Voltage Range
V
output voltage defined by internal resistor divider;
DCDC3_CTRL:VCON = 0
0.8
0.1
3.60
3.60
DCDC3 Output
Voltage Range
VDCDC3
V
output voltage defined by VCON input;
DCDC3_CTRL:VCON = 1
Continuous Output
Current
IOUT(DCDC3)
IQ
DCDC3
2200
46
mA
ILOAD = 0 mA, DCDC3_MODE = 0, Device not switching
ILOAD = 0 mA, DCDC3_MODE = 1, Device switching
26
μA
Quiescent Current
6
mA
DCDC3_MODE = 1, ILOAD = 0mA, TA = 25°C;
COUT = 2 x 4.7uF + 2.2uF
-2
2
%
%
DCDC3_MODE = 1, ILOAD = 0mA, TA = –40 – 85°C;
COUT = 2 x 4.7uF + 2.2uF
-2.5
2.5
Accuracy; output
voltage setting with
register;
DCDC3_CTRL:VCO
N = 0
DCDC3_MODE = 0, ILOAD = 0mA, TA = 25°C;
COUT = 2 x 4.7uF + 2.2uF
the output voltage tolerance is -3% / +3% or -45mV /
+45mV whichever is larger
-3
-3
3
3
5
%
%
%
VDCDC3
DCDC3_MODE = 0, ILOAD = 0mA, TA = –40 – 85°C;
COUT = 2 x 4.7uF + 2.2uF
the output voltage tolerance is -3% / +3% or -45mV /
+45mV whichever is larger
Accuracy for VCON
operation;
DCDC3_CTRL:VCO
N = 1
Vo = 0.1V to 3.6V; COUT = 2 x 4.7uF + 2.2uF;
PWM mode forced automatically; accuracy in VCON
mode is +/- 5% or +/-25mV, whichever is larger
-5
Switching
Frequency
fSW
DCDC3_MODE = 1 or DCDC3_CTRL:VCON = 1
VIN_DCDC3 = 3.6V, 100% duty cycle
VIN_DCDC3 = 3.6V, 0% duty cycle
TJ = 85°C; VINDCDC3=4.2V
2100
2300
75
2700
120
180
3
kHz
mΩ
mΩ
μA
High side MOSFET
on-resistance
RDS(ON)
Low side MOSFET
on-resistance
110
High side leakage
current
ILK_HS
ILK_LS
ILIM
Low side leakage
current
TJ = 85°C; VINDCDC3=4.2V
3
μA
High side current
limit
2.9V ≤ VIN_DCDC3 ≤ 5.5V
2400
2200
1000
3000
2800
1500
200
3600
3400
2000
mA
mA
mA
Low side current
limit
ILIM
2.9V ≤ VIN_DCDC3 ≤ 5.5V
Low side negative
current limit
ILIM
2.9V ≤ VIN_DCDC3 ≤ 5.5V; EN_nILIM_xl=1
Low side negative
current limit
ILIM
2.9V ≤ VIN_DCDC3 ≤ 5.5V; EN_nILIM_xl=0
mA
%
duty cycle range
VIN = 3.6V
2
100
DCDC3 output
voltage ripple
VIN = 5V; VOUT = 3.4V; Io=2A; L=1.5uH, ESR=90mR;
Co=10uF
10
50 mVpp
mV
DCDC3 load
transient response
VIN = 5V; VOUT = 3.4V; Io=200mA to 1.8A; L=1.5uH,
ESR=90mR; Co=10uF; dt=10us
100
efficiency
efficiency
efficiency
VINDCDCx=3.7V, Vo=3.4V; Io=1500mA
VINDCDCx=3.7V, Vo=3.4V; Io=400mA
VINDCDCx=3.7V, Vo=2.0V; Io=10mA
80
90
80
%
%
%
14
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Electrical Characteristics - DCDC3 (continued)
TA = –40°C to +85°C, typical values are at TA = +25°C (unless otherwise noted), see parameter measurement information
PARAMETER
TEST CONDITIONS
VIN = 3.6V, ILOAD = 100mA, Vo=2.65V
1kHz < f < 100kHz
MIN
TYP
MAX
UNIT
3
output noise
μV/√Hz
100kHz < f < 1MHz
0.2
0.1
1MHz < f < 10MHz
Power Good
Threshold
VDCDC
x-14%
VDCDC
x-7%
VDCDCPG-falling
VDCDCPG-rising
tStart
VDCDCx falling
VDCDCx rising
%
%
Power Good
Threshold
VDCDC
x-5%
Time to start switching, measured from end of RFFE
command enabling converter
Start-up time
175
μs
Time to ramp from 5% to 95% of VOUT
DCDC3_CTRL:IMMEDIATE = 1; VOUT = 3.4V
;
tRamp
VOUT Ramp UP time
rise and fall time
30
30
10
μs
μs
μs
dVo=+/-1V; Io=450mA; Co=10uF; DCDC3_SEL mode
ramp time in VCON
mode
VCON input voltage
range
0.2
2.1
V
VCON slew rate
300
1
mV/μs
MΩ
VCON input
resistance
VCON gain
typical adjustable range
1.3
-350
250
2.7
0
VCON offset
mV
RDischarge
Discharge resistor
400
500
Ω
voltage between
VINDCDC3 and
VDCDC3
5.5
V
bypass switch
current limit
VINDCDCx= 2.8V to 5.5V; not tested in production
2000
2500
10
3000
mA
µs
bypass switch
current limit
response time
resistance from
VINDCDC3 to
VDCDC3
bypass switch closed; not including the parallel path
through high side switch and inductor
100
170
10
mΩ
leakage current from
VINDCDC3 to
VDCDC3
when bypass switch is open
µA
bypass switch over- sensed at VDCDC3; bypass enabled bit is cleared when
voltage protection voltage is exceeded; rising edge
4.0
3.7
V
V
bypass switch over- sensed at VDCDC3; bypass enabled bit is cleared when
voltage protection voltage is exceeded; falling edge
2.9 Electrical Characteristics - RF-LDOs
TA = –40°C to +85°C, typical values are at TA = +25°C (unless otherwise noted), see parameter measurement information
PARAMETER
TEST CONDITION
LDO1
MIN
2.0
TYP
MAX
5.5
UNIT
VIN
Input Voltage
V
LDO2, analog supply voltage input
2.8
5.5
LDO Output Voltage
range for RF-LDOs
50mV steps
1.2
3.4
V
VLDOx
ECO = 0
ECO = 1
-2
-5
2
5
%
%
LDO Voltage
Accuracy
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Electrical Characteristics - RF-LDOs (continued)
TA = –40°C to +85°C, typical values are at TA = +25°C (unless otherwise noted), see parameter measurement information
PARAMETER
TEST CONDITION
MIN
10
TYP
MAX
UNIT
LDO1
LDO Continuous
Output Current
IOUT(LDOx)
ISHORT(LDOx)
VDO(LDOx)
mA
LDO2
10
LDO1
20
80
80
LDO Current Limit
mA
mV
LDO2
20
IOUT(LDO1) = 10mA; VINLDO1=2.0V
IOUT(LDO2) = 10mA; VINLDO2=3.0V
250
250
(1)
Dropout Voltage
Line Regulation
VIN = VLDO + 0.5V & ILOAD = 10mA for LDO1 and for
LDO2
–1
1
%
mV
%
Load Regulation;
ECO = 0
LDO1 and LDO2: ILOAD = 50uA to 10mA
LDO1 and LDO2: ILOAD = 0mA to 1mA
dV/dt = ±0.5V/μs
40
5
Load Regulation;
ECO = 1
-5
Line Transient
Response
-50
50
50
mV
mV
dB
Load Transient
Response
for LDO1 and LDO2: dI/dt = 100mA/μs; 1mA to 10mA load
step
Power Supply
Rejection Ratio
PSRR
Iq
f = 10Hz to 1kHz, VIN - VOUT ≥ 0.5V, ILOAD = 10mA
63
output voltage noise f = 10Hz to 100kHz, VIN - VOUT ≥ 0.5V , ILOAD = 10mA
30
µVrms
µA
ECO = 1; ILOAD ≤ 1mA for LDO1, LDO2
Quiescent Current
16
40
ECO = 0; ILOAD ≤ 10mA for LDO1, LDO2
µA
minimum wait time before the full current can be drawn
after ECO is set 0
ECO exit time
50
µs
µs
µs
Time to ramp from 5% to 95% of VOUT ; IOUT = 10mA;
tRamp
VOUT Ramp Up time
Co=4.7uF; Vo=1.8V
850
1000
1200
Time to ramp from 5% to 95% of VOUT ; IOUT = 10mA;
tRamp
VOUT Ramp Up time
Co=4.7uF; Vo=2.8V
1000
VLDOPG-falling
Power Good
Threshold
VDCDCx falling
VLDOx-
14%
VLDOx-
7%
VLDOPG-rising
Power Good
Threshold
VDCDCx rising
VLDOx-
5%
Discharge
RDischarge
resistance at LDOx LDOx disabled
output
200
325
450
Ω
(1) VDO = VIN - VOUT, where VOUT = VOUT(NOM) - 2%
2.10 Electrical Characteristics – digital inputs, digital outputs
TA = –40°C to +85°C, typical values are at TA = +25°C (unless otherwise noted)
PARAMETER
RFFE interface
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VVDDIO
VVDDIO
IVIO-IN
VDDIO voltage range
VDDIO voltage range
for VDDIO = 1.2V
1.1
1.2
1.8
1.3
V
V
for VDDIO = 1.8V
1.65
1.95
1.25
I/O voltage average
input current for SDATA,
SCLK
VDDIO=1.8V; average during a 26MHz write
mA
CL
load capacitance
half speed readback; not including TPS657120 pin
capacitance
50
pF
V
VOL
Low Level Output
Voltage for SDATA,
SCLK
IOL= 2mA
0
0.2 x
VDDIO
16
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Electrical Characteristics – digital inputs, digital outputs (continued)
TA = –40°C to +85°C, typical values are at TA = +25°C (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VOH
High Level Output
Voltage for SDATA,
SCLK
IOH= -2mA
0.8 x VDDIO
VDDIO
V
VTP
VTN
VTN
VH
INPUT: Positive Going
Threshold Voltage
for VDDIO = 1.2V or 1.8V
0.4 x VDDIO
0.7 x
VDDIO
V
V
INPUT: Negative Going for VDDIO = 1.2V
Threshold Voltage
0.28 x
VDDIO
0.6 x
VDDIO
INPUT: Negative Going for VDDIO = 1.8V
Threshold Voltage
0.3 x VDDIO
0.6 x
VDDIO
V
INPUT: Hysteresis
Voltage (VTP-VTN)
for VDDIO = 1.2V or 1.8V
0.1 x VDDIO
0.4 x
VDDIO
V
VIORST
IIH
RFFE I/O voltage reset
voltage level
RFFE interface is in reset when VDDIO is below that
voltage
0.95
V
SDATA = 0.8 x VDDIO
SCLK = 0.8 x VDDIO
SDATA = 0.2 x VDDIO
SCLK = 0.2 x VDDIO
-2
-1
-2
-1
10
10
5
uA
IIL
uA
V
1
generic I/Os
VIL
VIL
Low Level Input Voltage for PWRON
0
0
0.4
Low Level Input Voltage for GPIO_0, GPIO_1, CLK_REQ1, CLK_REQ2 ,
DCDC3_SEL; SDATA, SCLK
0.3 x
VDDIO
VIH
VIH
High Level Input Voltage for PWRON pin
1.1
Vcc
V
V
High Level Input Voltage for GPIO_0, GPIO_1, CLK_REQ1, CLK_REQ2 ,
DCDC3_SEL, SDATA, SCLK
0.7 x VDDIO
VDDIO
VOL
VOH
VOH
IOL
Low Level Output
Voltage
IOL= 1mA for VDDIO=1.8V
0
0.2
VDDIO
Vcc
1
V
High Level Output
Voltage
for pins configured as push-pull ouput to VDDIO; IOH
1mA for VDDIO=1.8V
=
VDDIO-0.2V
V
High Level Output
Voltage
for pins configured as open-drain ouput
for VDDIO >/= 1.8V
V
Low Level Output
Current
mA
mA
mA
mA
IOL
Low Level Output
Current
for VDDIO = 1.2V
0.1
IOH
IOH
High Level Output
Current
for VDDIO >/= 1.8V
1
High Level Output
Current
for VDDIO = 1.2V
0.1
ILKG
Input Leakage Current
input pins tied to VILor VIH
0.2
2
µA
µs
TdHL
CLK_REQ1,
CLK_REQ2,
DCDC3_SEL delay for
HIGH to LOW change
TdLH
TdLH
CLK_REQ1,
CLK_REQ2,
DCDC3_SEL delay for
LOW to HIGH change
2
µs
PWRON delay for LOW for TPS657120 in STANDBY mode going to ACTIVE
to HIGH change
4
+30%
ms
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2.11 Electrical Characteristics – Thermal Shutdown, undervoltage lockout
TA = –40°C to +85°C, typical values are at TA = +25°C (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Thermal Shutdown temperature rising
threshold
136
148
160
°C
Thermal Shutdown temperature
hysteresis
temperature falling
20
°C
UVLO threshold
UVLO threshold
supply voltage rising
supply voltage falling
2.7
2.6
V
V
18
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2.12 Electrical Characteristics – RFFE Timing parameters
TA = –40°C to +85°C, typical values are at TA = +25°C (unless otherwise noted)
PARAMETER
TEST CONDITIONS
for write access
MIN
TYP
MAX
26
UNIT
MHz
MHz
fCLK
SCLK frequency
0.032
0.032
fCLK_HALF
SCLK half-speed
frequency
for read access
13
TSCLKIH
TSCLKIL
TS
SCLK Input High Time
SCLK Input Low Time
Data Setup Time
for full speed write access
for full speed write access
for VDDIO = 1.8V
11.25
ns
ns
ns
ns
ns
ns
11.25
1
4
5
0
TS
Data Setup Time
for VDDIO = 1.2V
TH
Data Hold Time
TD
Time for Data Output
Valid from SCLK rising
edge
TPS657120 is a half speed device for read operations
22
6.5
10
TSDATAOTRL
SDATA Output
Transition (Rise/Fall)
Time
2.1
ns
ns
TSDATAZ
Data drive release time
2.13 MIPI RFFE 已接收时钟信号限制
TSCLKIL
TSCLKIH
VTPmax
VTNmin
Figure 2-1. 已接收时钟信号限制
2.14 MIPI RFFE 总线激活数据传输时序技术规格
VTPmax
SCLK
VTNmin
TD
TD
TSDATAOTR
TSDATAOTR
VOHmin
SDATA
VOLmax
Figure 2-2. 总线激活数据传输时序技术规格
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2.15 MIPI RFFE 总线驻停周期时序
VOHmin
(VTPmax
)
SCLK
VOLmax
(VTNmin
)
TSDATAZ
VOHmin
SDATA
VOLmax
Bus Park Cycle
Signal driven
Signal not driven; pull-down only
TSDATAZ is measured from SCLK VOL level for the master device driving SCLK and SDATA line
TSDATAZ is measured from SCLK VTN level for a device receiving SCLK and driving SDATA line
Figure 2-3. 总线驻停周期时序
2.16 MIPI RFFE 数据设置和保持时序
VTPmax
SCLK
VTNmin
TH
TS
TH
TS
VTPmax
SDATA
VTNmin
Figure 2-4. 数据设置和保存计时
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2.17 典型特征
2.17.1 参数测量信息
如推荐运行条件中规定的那样(除 TA = 25°C 时的情况),已经使用具有无源组件的评估模块 (EVM) 生成
这些图形,除非另外注明:
•
•
•
•
•
L1 = L2 = DFE201610C-2R2
L3 = DFE252010-1R5
CoutDCDC1,2 = 10uF (GRM188R61A106ME69)
CoutDCDC3 = 4.7uF + 2.2uF (GRM188R60J475KE19 + GRM185R60J225)
CoutLDO1,2 = 4.7uF (GRM188R60J475KE19)
图形的表格
图
效率 DCDC1 与负载电流 / 脉宽调制 (PWM) 模式间的关系
VO = 1.7V;VI = 3.0V,3.8V,4.2V,5.0V
Figure 2-5
Figure 2-6
Figure 2-7
Figure 2-8
Figure 2-9
Figure 2-10
Figure 2-11
Figure 2-12
Figure 2-13
Figure 2-14
Figure 2-15
Figure 2-16
Figure 2-17
Figure 2-18
Figure 2-19
Figure 2-20
Figure 2-21
Figure 2-22
Figure 2-23
效率 DCDC1 与负载电流 / 脉冲频率调制 (PFM) 模式间的关系 VO = 1.7V;VI = 3.0V,3.8V,4.2V,5.0V
效率 DCDC2 与负载电流 / PWM 模式间的关系
效率 DCDC2 与负载电流 / PFM 模式间的关系
效率 DCDC3 与负载电流 / PWM 模式间的关系
效率 DCDC3 与负载电流 / PFM 模式间的关系
效率 DCDC3 与负载电流 / PWM 模式间的关系
效率 DCDC3 与负载电流 / PFM 模式间的关系
效率 DCDC3 与负载电流 / PWM 模式间的关系
效率 DCDC3 与负载电流 / PFM 模式间的关系
PWM 模式下的负载瞬态响应 DCDC1
VO = 2.65V;VI = 3.0V,3.8V,4.2V,5.0V
VO = 2.65V;VI = 3.0V,3.8V,4.2V,5.0V
VO = 0.85V;VI = 3.0V,3.8V,4.2V,5.0V
VO = 0.85V;VI = 3.0V,3.8V,4.2V,5.0V
VO = 2.0V;VI = 3.0V,3.8V,4.2V,5.0V
VO = 2.0V;VI = 3.0V,3.8V,4.2V,5.0V
VO = 3.4V;VI = 3.6V,3.8V,4.2V,5.0V
VO = 3.4V;VI = 3.6V,3.8V,4.2V,5.0V
IO= 30mA 至 270 mA;VO = 1.7V;VI = 3.6V
IO= 30mA 至 270 mA;VO = 1.7V;VI = 3.6V
IO= 30mA 至 270 mA;VO = 2.65V;VI = 3.6V
IO= 30mA 至 270 mA;VO = 2.65V;VI = 3.6V
IO= 100mA 至 900 mA;VO = 2.0V;VI = 3.6V
IO= 200mA 至 1800 mA;VO = 3.4V;VI = 3.8V
VO= 1.7V;VI = 3.6V 至 4.2V;IO= 100mA
VO= 1.7V;VI = 3.6V 至 4.2V;IO= 100mA
PFM 模式下的负载瞬态响应 DCDC1
PWM 模式下的负载瞬态响应 DCDC2
PFM 模式下的负载瞬态响应 DCDC2
PFM 模式下的负载瞬态响应 DCDC3
PFM 模式下的负载瞬态响应 DCDC3
PWM 模式下的线路瞬态响应 DCDC1
PFM 模式下的线路瞬态响应 DCDC1
PWM 模式下的线路瞬态响应 DCDC2
VO= 2.65V;VI = 3.6V 至 4.2V;电流 100mA 时的负载 =
26.5Ω
PFM 模式下的线路瞬态响应 DCDC2
VO= 2.65V;VI = 3.6V 至 4.2V;电流 100mA 时的负载 =
26.5Ω
Figure 2-24
PFM 模式下的线路瞬态响应 DCDC3
PFM 模式下的线路瞬态响应 DCDC3
针对 DCDC1 的电源抑制比 (PSRR)
针对 DCDC2 的 PSRR
VO= 2.0V;VI = 3.6V 至 4.2V;电流 1.25A 时的负载 = 1.6Ω Figure 2-25
VO= 3.4V;VI = 3.6V 至 4.2V;电流 1.1A 时的负载 = 3.1Ω
VO = 1.7V;VI= 3.6V;负载 = 80mA,150mA
VO = 2.65V;VI= 3.6V;负载 = 80mA,150mA
VO = 2.0V;VI= 3.6V;负载 = 80mA,150mA
VO = 3.4V;VI= 3.6V;负载 = 80mA,150mA
IO= 1mA 至 9 mA;VO = 1.8V;VI = 3.6V
Figure 2-26
Figure 2-27
Figure 2-28
Figure 2-29
Figure 2-30
Figure 2-31
Figure 2-32
Figure 2-33
针对 DCDC3 的 PSRR
针对 DCDC3 的 PSRR
PFM 模式下 LDO1 的负载瞬态响应
PFM 模式下 LDO2 的负载瞬态响应
线路瞬态响应 LDO1
IO= 1mA 至 9 mA;VO = 2.8V;VI = 3.6V
VO= 1.8V;VI = 3.6V 至 4.2V;电流 10mA 时的负载 =
180Ω
线路瞬态响应 LDO2
VO= 2.8V;VI = 3.6V 至 4.2V;电流 10mA 时的负载 =
280Ω
Figure 2-34
针对 LDO1 的 PSRR
针对 LDO2 的 PSRR
针对 LDO1 的外部噪声
针对 LDO2 的外部噪声
VO = 1.8V;负载 = 10mA;VI = 2.7V,3.3V
VO = 2.8V;负载 = 10mA;VI = 3.3V,3.6V
VO = 1.8V;电流 10mA 时的负载 = 180Ω;VI= 3.6V
VO = 2.8V;电流 10mA 时的负载 = 280Ω;VI= 3.6V
Figure 2-35
Figure 2-36
Figure 2-37
Figure 2-38
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图形的表格 (continued)
图
启动 DCDC1,DCDC2,LDO1 和 LDO2
VI= 3.6V;负载为开路
Figure 2-39
2.18 典型特征(继续)
TA= 25°C 时测得的值,除非另外注明
效率
效率
与
负载电流间的关系
与
负载电流间的关系
100
100
90
80
70
60
50
40
30
20
10
0
VIN = 3.0 V
90
VIN = 3.8 V
80
VIN = 4.2 V
70
VIN = 5.0 V
60
50
40
30
20
10
0
VIN = 3.0 V
VIN = 3.8 V
VIN = 4.2 V
VIN = 5.0 V
ꢀꢁꢁꢀ
1m
10m
100m
ꢀꢁꢁꢀ
1m
10m
100m
C001
C002
Output Current (A)
Output Current (A)
Figure 2-5. PWM 模式,DCDC1,VO = 1.7V
Figure 2-6. PFM 模式,DCDC1,VO = 1.7V
效率
效率
与
负载电流间的关系
100
与
负载电流间的关系
100
VIN = 3.0 V
90
90
80
70
60
50
VIN = 3.8 V
80
VIN = 4.2 V
70
VIN = 5.0 V
60
50
40
30
20
10
0
40
VIN = 3.0 V
30
VIN = 3.8 V
20
VIN = 4.2 V
10
VIN = 5.0 V
100m
0
ꢀꢁꢁꢀ
ꢀꢁꢁꢀ
1m
10m
100m
1m
10m
C003
C004
Output Current (A)
Output Current (A)
Figure 2-7. PWM 模式,DCDC2,VO = 2.65V
Figure 2-8. PFM 模式,DCDC2,VO = 2.65V
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TA= 25°C 时测得的值,除非另外注明
效率
效率
与
负载电流间的关系
与
负载电流间的关系
100
100
90
80
70
60
50
40
30
20
10
0
VIN = 3.0 V
90
VIN = 3.8 V
80
VIN = 4.2 V
70
VIN = 5.0 V
60
50
40
30
20
10
0
VIN = 3.0 V
VIN = 3.8 V
VIN = 4.2 V
VIN = 5.0 V
ꢀꢁꢁꢀ
1m
10m
100m
1
ꢀꢁꢁꢀ
1m
10m
100m
1
C005
C007
C009
C006
C008
C010
Output Current (A)
Output Current (A)
Figure 2-9. PWM 模式,DCDC3,VO = 0.85V
Figure 2-10. PFM 模式,DCDC3,VO = 0.85V
效率
效率
与
负载电流间的关系
100
与
负载电流间的关系
100
VIN = 3.0 V
90
90
80
70
60
50
VIN = 3.8 V
80
VIN = 4.2 V
70
VIN = 5.0 V
60
50
40
30
20
10
0
40
VIN = 3.0 V
30
VIN = 3.8 V
20
VIN = 4.2 V
10
VIN = 5.0 V
0
ꢀꢁꢁꢀ
ꢀꢁꢁꢀ
1m
10m
100m
1
1m
10m
100m
1
Output Current (A)
Output Current (A)
Figure 2-11. PWM 模式,DCDC3,VO = 2.0V
Figure 2-12. PFM 模式,DCDC3,VO = 2.0V
效率
效率
与
负载电流间的关系
100
与
负载电流间的关系
100
VIN = 3.6 V
90
90
80
70
60
50
VIN = 3.8 V
80
VIN = 4.2 V
70
VIN = 5.0 V
60
50
40
30
20
10
0
40
VIN = 3.6 V
30
VIN = 3.8 V
20
VIN = 4.2 V
10
VIN = 5.0 V
0
ꢀꢁꢁꢀ
ꢀꢁꢁꢀ
1m
10m
100m
1
1m
10m
100m
1
Output Current (A)
Output Current (A)
Figure 2-13. PWM 模式,DCDC3,VO = 3.4V
Figure 2-14. PFM 模式,DCDC3,VO = 3.4V
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TA= 25°C 时测得的值,除非另外注明
PWM 模式下,DCDC1 的负载瞬态响应
PFM 模式下,DCDC1 的负载瞬态响应
Figure 2-15. IO= 30mA 至 270mA;
VO = 1.7V;VI = 3.6V
Figure 2-16. IO= 30mA 至 270mA;
VO = 1.7V;VI = 3.6V
PWM 模式下,DCDC2 的负载瞬态响应
PFM 模式下,DCDC2 的负载瞬态响应
Figure 2-17. IO= 30mA 至 270mA;
VO = 2.65V;VI = 3.6V
Figure 2-18. IO= 30mA 至 270mA;
VO = 2.65V;VI = 3.6V
PFM 模式下,DCDC3 的负载瞬态响应
PFM 模式下,DCDC3 的负载瞬态响应
Figure 2-19. IO= 100mA 至 900mA;
VO = 2.0V;VI = 3.6V
Figure 2-20. IO= 200mA 至 1800mA;
VO = 3.4V;VI = 3.8V
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TA= 25°C 时测得的值,除非另外注明
PWM 模式下,DCDC1 的线路瞬态响应
PFM 模式下,DCDC1 的线路瞬态响应
Figure 2-21. VO= 1.7V;VI = 3.6V 至 4.2V;
Figure 2-22. VO= 1.7V;VI = 3.6V 至 4.2V;
IO= 100mA
IO= 100mA
PWM 模式下,DCDC2 的线路瞬态响应
PFM 模式下,DCDC2 的线路瞬态响应
Figure 2-23. VO= 2.65V;VI = 3.6V 至 4.2V;
电流 100mA 时的负载 = 26.5Ω
Figure 2-24. VO= 2.65V;VI = 3.6V 至 4.2V;
电流 100mA 时的负载 = 26.5Ω
PFM 模式下,DCDC3 的线路瞬态响应
PFM 模式下,DCDC3 的线路瞬态响应
Figure 2-25. VO= 2.0V;VI = 3.6V 至 4.2V;
电流 1.25A 时的负载 = 1.6Ω
Figure 2-26. VO= 3.4V;VI = 3.6V 至 4.2V;
电流 1.1A 时的负载 = 3.1Ω
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TA= 25°C 时测得的值,除非另外注明
针对 DCDC1 的 PSRR
针对 DCDC2 的 PSRR
80
80
70
60
50
40
30
20
10
0
70
60
50
40
30
20
Load = 80 mA
10
Load = 150 mA
0
Load = 80 mA
Load = 150 mA
10
100
1k
10k
100k
1M
10
100
1k
10k
100k
1M
C011
C012
Frequency (Hz)
Frequency (Hz)
Figure 2-27. VO = 1.7V;VI= 3.6V;
负载 = 80mA,150mA
Figure 2-28. VO = 2.65V;VI= 3.6V;
负载 = 80mA,150mA
针对 DCDC3 的 PSRR
针对 DCDC3 的 PSRR
80
70
60
50
40
30
20
10
0
80
70
60
50
40
30
20
10
0
Load = 80 mA
Load = 150 mA
Load = 80 mA
Load = 150 mA
10
100
1k
10k
100k
1M
10
100
1k
10k
100k
1M
C013
C014
Frequency (Hz)
Frequency (Hz)
Figure 2-29. VO = 2.0V;VI= 3.6V;
负载 = 80mA,150mA
Figure 2-30. VO = 3.4V;VI= 3.6V;
负载 = 80mA,150mA
PFM 模式下,LDO1 的负载瞬态响应
PFM 模式下,LDO2 的负载瞬态响应
Figure 2-31. IO= 1mA 至 9mA;
VO = 1.8V;VI = 3.6V
Figure 2-32. IO= 1mA 至 9mA;
VO = 2.8V;VI = 3.6V
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TA= 25°C 时测得的值,除非另外注明
线路瞬态响应
线路瞬态响应
LDO2
LDO1
Figure 2-33. VO= 1.8V;VI = 3.6V 至 4.2V;
电流 10mA 时的负载 = 180Ω
Figure 2-34. VO= 2.8V;VI = 3.6V 至 4.2V;
电流 10mA 时的负载 = 280Ω
针对 LDO1 的 PSRR
针对 LDO2 的 PSRR
100
90
90
80
70
60
50
40
30
80
70
60
50
40
30
20
20
VIN = 2.7 V
VIN = 2.7V
10
10
V
= 3.3 V
V
= 3.3 V
IN
IN
0
0
10
100
1k
10k
100k
1M
10
100
1k
10k
100k
1M
C015
C016
Frequency (Hz)
Frequency (Hz)
Figure 2-35. VO = 1.8V;负载 = 10mA;
VI = 2.7V,3.3V
Figure 2-36. VO = 2.8V;负载 = 10mA;
VI = 3.3V,3.6V
针对 LDO1 的外部噪声
针对 LDO2 的外部噪声
1.4
1.2
1.2
1.0
0.8
0.6
0.4
0.2
0.0
1.0
0.8
0.6
0.4
0.2
0.0
10
100
1k
10k
100k
10
100
1k
10k
100k
C017
C018
Frequency (Hz)
Frequency (Hz)
Figure 2-37. VO = 1.8V;电流 10mA 时的负载 =
Figure 2-38. VO = 2.8V;电流 10mA 时的负载 =
180Ω;
280Ω;
VI = 3.6V
VI = 3.6V
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TA= 25°C 时测得的值,除非另外注明
启动
DCDC1,DCDC2,
LDO1 和 LDO2
Figure 2-39. VI= 3.6V;负载为开路
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3
详细说明
3.1 线性稳压器
此电源管理内核有 2 个具有不同输出电流能力的高 PSRR,低噪声 LDO。 可通过通信总线来单独设定每个
LDO 的输出电压(请见 LDO 电压设置表),并且在 LDO 被启用时,转换立即发生。
低静态电流(经济 (ECO))模式
每个 LDO 配备有一个低静态电流模式,可通过将 ECO 为设定为 1 来分别启用或禁用此模式。
输出放电
每个 LDO 配备有一个输出放电位。 当这个位被设定为 1 时,如果 LDO 被禁用,LDO 的输出将被放电至接
地电平(与一个 300Ω 的电阻器等效)。 如果 LDO 被启用,此放电位将被忽略。
LDO 使能
LDO 使能/禁用是灵活加电和断电状态机的部件。 每个 LDO 可被编程,这样的话,它在加电状态出现后的
15 个时间槽中的任何一个中自动加电,或者由一个专用引脚控制加电。 引脚 CLK_REQ1 和 CLK_REQ2 可
被映射到任一资源(LDO,直流到直流转换器)以启用或禁用 LDO。
LDO 电压范围
LDO 的输出电压范围介于 1.2V 至 3.3V 之间。
LDO 电源正常比较器
每个 LDO 的输出电压由一个内部电源正常比较器的监控。 其输出是设定和清零寄存器 PGOOD 内的
PGOOD 位。 如果 LDO 被启用,但是 LDO 的输入电压低于 1V,那么电源正常位无效。
3.2 降压转换器 DCDC1 和 DCDC2
TPS657120 降压转换器在中等程度至重负载时以典型值为 2.25MHz 的定频脉宽调制 (PWM) 模式运行。 随
着 DCDCx_MODE 位被设定为“0”,轻负载电流时,转换器可自动进入省电模式,并在 PFM 模式下运行。
PWM 运行期间,此转换器使用一个独特的快速响应电压模式控制机制,此机制具有输入电压前馈以实现良
好的线路和负载稳压,从而允许使用小型陶瓷输入和输出电容器。 在时钟信号发起的每个时钟周期开始时,
高侧金属氧化物半导体场效应晶体管 (MOSFET) 开关被接通。 现在电流从输入电容,经由高侧 MOSFET
开关,流经电感器,到达输出电容器和负载。 在这个阶段期间,在 PWM 比较器触发前,电流斜升,并且控
制逻辑电路将关闭此开关。 电流限制比较器也可在超过高侧 MOSFET 开关的电流限值的情况下关闭此开
关。 在一个防止击穿电流的关闭时间后,低侧 MOSFET 整流器被接通,并且电感器电流将斜降。 现在,电
流从电感器流至输出电容器和负载。 它通过低侧 MOSFET 整流器返回电感器。
下一个周期再次由关闭低侧 MOSFET 整流器,并且接通高侧 MOSFET 开关的时钟信号发起。 DCDC1 和
DCDC2 间的 180°相移减少输入均方根 (RMS) 电流,并且将两个直流到直流转换器的运行同步。 反馈引脚
(VDCDCx) 必须被直接接至直流到直流转换器的输出电压,并且一定不能连接外部电阻器网络。
3.3 省电模式
省电模式在 DCDCx_MODE 位被设定为“0”时启用。 如果负载电流减少,转换器将自动进入省电模式运行。
省电模式期间,转换器跳过开关,并且以减少的频率在 PFM 模式中用尽可能小的静态电流运行,以保持高
效率。 转换器通常将输出电压定位在比标称输出电压高出 +1%。 这个电压定位特性最大限度地减少由突然
负载阶跃所导致的电压下降。 一旦的低侧 MOSFET 开关中的电感器电流变为零,这表示断续传导模
式,PWM 模式转换为 PFM 模式。 省电模式期间,输出电压由一个 PFM 比较器进行监控。 当输出电压下
降到 VOUT 标称值 +1% 的 PFM 比较器阀值以下时,器件启动一个 PFM 电流脉冲。 高侧 MOSFET 开关
将接通,并且电感器电流将斜升。 在接通时间终止后,在电感器电流变为零之前,此开关关闭,并且低侧
MOSFET 开关打开。 此转换器实际上将一个电流传送至输出电容器和负载。 如果负载低于已传送的电流,
输出电压将上升。 如果输出电压等于或高于 PFM 比较器阀值,此器件停止开关并进入一个典型流耗为
25µA 的睡眠模式。
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如果输出电压仍旧低于 PFM 比较器阀值,在达到 PFM 比较器阀值前,将进一步生成连续的 PFM 电流脉
冲。 一旦输出电压下降到低于 PFM 比较器阀值,此转换器再次开始切换。 借助于快速信号阀值比较器,可
以将 PFM 模式运行期间的输出电压纹波保持在较小的水平上。 PFM 脉冲受时间控制,这样可以通过电感
器的值来更改被传递给输出电容器的电荷。 产生的 PFM 输出电压纹波和 PFM 频率直接取决于输出电容器
的尺寸和电感器的值。 增加输出电容器值和电感器值将最大限度地减少输出纹波。 PFM 频率随着电感器值
的减小和增大而下降和上升。 在 PFM 模式中不在支持输出电流的情况下,退出 PFM 模式并进入 PWM 模
式。 通过将 Mode 引脚设定为高电平,可禁用省电模式。 然后,此转换器将运行在定频 PWM 模式中。
3.4 动态电压定位(可选)
这个特性在负载由轻到重以及由重到轻的负载阶跃发生时减少电压下冲/过冲。 它在省电模式中起作用,并
且将输出电压稳定在比标称值高 1% 的水平上。 这为负载阶跃发生时的电压压降,以及抛负载时的电压增加
提供了更多的净空。 动态电压定位是 TI 的一个可选特性集,并且可按照要求启用/禁用。
3.5 软启动/使能
降压转换器使能
降压转换器使能/禁用是灵活加电和断电状态机的部件。 每个转换器可被编程,这样的话,它在加电状态出
现后的 15 个时间槽中的任何一个中自动加电,或者由一个专用引脚控制加电。 引脚 CLK_REQ1
CLK_REQ2 可被映射到任一资源(LDO,直流到直流转换器)以启用或禁用它。
和
降压转换器软启动
TPS657120 中的降压转换器有一个能够控制输出电压斜升的内部软启动电路。 在一个电气技术规格中定义
的时间内,输出电压从其标称值的 5% 斜升至 95%。 这限制了启动期间转换器内的涌入电流,并且在使用
电池或高阻抗电源时防止可能出现的输入电压压降。 此软启动电路在启动时间 tStart 终止后被启用。 对于
DCDC3
来说,有一个为启动和斜坡时间设定两个不同值的选项。
对于要求快速响应的应用,设定
DCDC3_CTRL:RAMP_TIME = 1。
软启动期间,输出电压斜升的控制如 Figure 3-1 中所示。
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EN
95%
5%
V
OUT
t
t
RAMP
Start
Figure 3-1. 软启动
3.6 针对 DCDC1,DCDC2 和 DCDC3 的动态电压定位 (DVS)
TPS657120 中的直流到直流转换器允许通过改变寄存器内容或者在 DCDCx_OP 和 DCDCx_AVS 寄存器定
义的设置之间切换来更改运行期间的输出电压。 DCDCx_OP 和 DCDCx_AVS 寄存器之间的切换由引脚
DCDC3_SEL 完成。 这个名称表示此引脚只用于 DCDC3,但是 DCDC1 和 DCDC2 可被映射至与 DCDC3
一样的引脚,以便通过切换引脚来在两个不同输出电压间转换。 电压缩放功能的映射由针对每个转换器的
DCDCx_CTRL
寄存器位
DCDCx_SEL_CTRL
完成。
当输出电压发生变化时,新的电压将在
时,斜升至由
DCDCx_CTRL:IMMEDIATE=1 时被立即斜升,或者在 IMMEDIATE 位被设定为
0
DCDCx_CTRL:TSTEP 定义的转换率。执行转换率控制,这样的话,TSTEP 定义达到新的目标值前,从一
个输出电压步进到下一个电压的时间,在,通过全部步长来步进。 当电压变化,此转换器被强制进入 PWM
模式,以实现已定义的输出电压上升和下降时间。 对于 DCDC3 来说,当运行在 VCON 模式中时,DVS 未
激活,但是转换器将按照 VCON 上的模拟信号运行。
在设定时间内,将输出电压斜升至目标值的 DVS 状态机在转换器被禁用时自动被禁用。 因此,只有在转换
器起作用时才处理电压变化。 如果转换器被禁用,现在寄存器内的目标电压值随着特定的 TSTEP 设置发生
变化,转换器被启用时,DVS 将开始斜升至目标值。 对于两个最慢 TSSTEP 设置,转换器的 130us 初始
使能延迟将不足以覆盖此斜升时间。 这将导致一个电压在加电期间仍旧斜升至新的目标值。
3.7 100% 占空比低压降运行
一旦输入电压接近标称输出电压,此器件开始进入 100% 占空比模式。 为了保持此输出电压,在一个或更
多周期内,高侧 MOSFET 开关 100% 接通。 随着进一步的减少 VIN,高侧 MOSFET 开关完全接通。 在这
个情况下,此转换器提供一个低输入到输出电压差异。 为了充分利用整个电池电压范围以实现最长的运行时
间,这一特性在电池供电类应用中特别有用。 保持稳压的最小输入电压取决于负载电流和输出电压,计算方
法如下:
VINmin = VOmax + IOmax (RDS(on)max + RL)
在这里,
IOmax = 最大输出电流加上电感器纹波电流
RDS(on)max = 最大高侧开关 RDS(on)
。
RL = 电感器的直流电阻
VOmax = 标称输出电压加上最大输出电压耐受值
3.8 180°异相操作
在 PWM 模式中,此转换器以 PMOS(高侧)晶体管的 180°接通相移运行。 这防止了两个转换器的高侧开
关同时接通,并因此使输入电流变得平滑。 这一特性减少了汲取自电源的浪涌电流。
3.9 针对 DCDC1,DCDC2,DCDC3,LDO1 和 LDO2 的欠压闭锁
欠压闭锁电路防止器件在低输入电压时出现故障,并且防止电池过度放电。 它在过低输入电压时禁用直流到
直流转换器和 LDO。 请见欠压闭锁阀值电压电气特性。
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3.10 输出电压放电
直流到直流转换器和 LDO 包含一个输出电容器放电特性,此特性在直流到直流转换器或 LDO 被禁用时将电
容器放电。
3.11 短路保护
所有输出受到电气技术规格中定义的最大输出电流的短路保护。
3.12 输出电压监控
内部电源正常比较器监视开关稳压器输出,并且检测输出电压何时低于目标值。 电源管理内核用这些信息来
设置和清零寄存器集合内相应的电源正常位。 一个开关稳压器的单独电源正常比较器将在稳压器被禁用或者
稳压器的电压从一个设定点转换为另外一个设定点时消隐。
3.13 降压转换器和 LDO 启用;引脚 CLK_REQ1 和 CLK_REQ2
降压转换器和 LDO 使能/禁用是灵活加电和断电状态机的部件。 可以对于每个转换器进行编程,这样的话,
它在加电状态后 8 个时间槽的开头自动加电。 或者,可将一个资源映射至一个控制使能功能的专用引脚。
引脚 CLK_REQ1 和 CLK_REQ2 为任一资源(LDO,直流到直流转换器)处理这个功能来启用或禁用它。
只要一个资源未映射到一个引脚,此使能位定义此状态。 如果一个资源被映射到一个引脚,使能位的状态被
忽略,并且此引脚控制此使能功能。
一旦一个资源被映射到 CLK_REQ1 引脚,并且在那个引脚上有一个下降边沿,所有 _OP 和 _AVS 寄存
器(对于全部资源来说)被重新载入它们的 OTP 缺省设置。 对于芯片的修订版本 1.0,根据任何一个
CLK_REQ 引脚的下降边沿来载入缺省设置。 在重新载入寄存器的 25us 时间内,RFFE 接口处于复位状
态,并且不能进行通信。 RFFE 接口也在 CLK_REQx 引脚的一个上升边沿后的 2.5us 期间内被保持在复位
状态。 CLK_REQ 映射应该在 2us 设置时间内完成 - 例如,CLK_REQ 引脚应该在引脚被映射到一个缺省情
况下打开的转换器之前具有一个稳定的 2us 高电平。
3.14 降压转换器 DCDC3
DCDC3 被用作 RF 功率放大器 (RF_PA) 的电源。 它的高达 2.5A 的输出电流可实现与 2G/3G 和 4G 放大
器的运行。 相对于输出电压的设定方式,有两个不同的运行模式:
•
由 用于 3G/4G 的寄存器 DCDC3_OP 或 DCDC3_AVS 设定;输出电压范围在 0.8V 至 3.8V 之间;允许
PWM/PFM 模式运行
•
由 可选择用于 2G 的引脚 VCON 上的模拟信号设定;输出电压范围在 0.1V 至 3.8V 之间;只适用于强
制 PWM 模式;细节请见 VCON DECODER
引脚 DCDC3_SEL 可被映射至 3 个降压转换器中的任何一个,但是通常只用于 DCDC3。 它可以根据
DCDC3_OP 和 DCDC3_AVS 在电压设置间切换。 对于每个电压设置,DCDC3_OP 和 DCDC3_AVS 包含
设定 DCDC3 输出电压、强制 PWM 模式,还有打开/闭合 BYPASS(旁路)开关的位。
3.15 DCDC3_SEL 控制
3.15.1 DCDC3_SEL 控制 - 电压映射选项
DCDC3_SEL 引脚允许在定义 DCDC3 运行参数的两个不同寄存器之间进行选择,例如:
•
•
•
DCDC3 输出电压
DCDC3 的 PWM 与 PFM 模式间的关系
DCDC3 旁路开关的打开/闭合
DCDC3_SEL 的状态定义两个寄存器中的哪个寄存器被用来定义运行参数,以及通过转换引脚来实现两个寄
存器之间的切换。
•
•
DCDC3_SEL = 低电平:参数由 DCDC3_OP 定义
DCDC3_SEL = 高电平:参数由 DCDC3_AVS 定义
除了 DCDC3,DCDC1 和/或 DCDC2 应该被映射至 DCDC3_SEL 引脚,以便根据引脚状态来改变它们的输
出电压。
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3.15.2 DCDC3_SEL 控制 - 针对 DCDC3 至 DCDC3_SEL 的负电流限制来映射使能信号;额外选
项只用于修订版本 1.1 和更高版本
除了上面的功能,为了启用和禁用 DCDC3 的负电流限制,可映射 DCDC3_SEL 引脚。 这个选项也许在高
斯最小频移键控 (GMSK) 斜升情况下有用。 在一个正斜坡期间,DCDC3 控制环路也许在具有斜升支持情况
下 (DCDC3_EN_UP = 1) 反调节。 在这个情况下,禁用 DCDC3 的负电流限制将有助于获得一个平滑的斜
升波形。 对于一个 GMSK 下降边沿,需要负电流限制来确保一个快速向下斜坡,所以需要将其启用。 为了
快速启用和禁用负电流限制,此功能可被映射至引脚
DCDC3_SEL。
此映射由位
SPARE0:nILIM_MAPPING 完成。 如果这个位被设定为 1,那么根据 DCDC3_SEL 引脚的状态来启用或禁
用负电流限制,在一个 GMSK 周期内,应该驱动相应的 n。 这个映射不选通,也不由其它映射选项选通,
所以要在不需要的情况下确保此电压映射被禁用。 位 SPARE0:EN_nILIM_x1 必须在映射完成前(通过将
SPARE0:nILIM_MAPPING 设定为 1)至少 50us 内被设定为 1。 细节请见 SPARE0 的寄存器说明。
3.16 旁路开关
有一个用于 DCDC3 的旁路开关,此 DCDC3 具有降压转换器的旁路开关和功率级间共用的输入引脚。 根据
寄存器 DCDC3_OP 和 DCDC3_AVS 中定义的 EN_BYPASS 的设置来手工驱动此开关。
有一个感测 DCDC3 输出的过压保护 (OVP)(阀值 4.0V),以便在旁路开关被闭合,并且来自一个未经调
节充电器/电源路径的电源电压直接上升至 5V 时保护由 DCDC3 供电的 RF-PA。 在这个情况下,旁路开关
被强制为“打开”状态,而与 EN_BYPASS 的设置无关。 位 DCDC_CONTROL:DCDC3_OVP 在一个 OVP
事件发生时被设定为“1”,并且需要用软件清零,以便使用 EN_BYPASS 再次闭合旁路开关。
当旁路开关被闭合时,DCDC3 的 PWM 模式被阻断,并且它的高侧开关被强制接通。
3.17 DCDC3 输出电压斜升支持。
有一个确保
DCDC3
上快速输出电压变化的电路。
这通过自动禁用旁路开关来完成,以便在独立于
EN_BYPASS 设置的情况下支持 DCDC3 斜升至较高的输出电压。 在一个 OVP 事件中,当 DCDC3_OVP
被设定时,斜升支持被禁用,并且必须将 DCDC3_OVP 清零,以实现斜升支持电路的正确运行。 此外,可
通过将 DCDC3_EN_UP 清零来禁用斜升支持。 此外,有一个确保 DCDC3 快速斜降的斜降支持。 此功能
可在独立于 DCDC3_EN_DWN 斜升支持的情况下被禁用,并且不受 OVP 状态的影响。
从芯片修订版本 1.1 开始,位 DCDC3_S2 和 DCDC3_S1 已经被添加到寄存器 DCDC_CONFIG1 中。 这
些位可实现斜升支持电路的阀值更改,并因此实现 VCON 变换期间对输出电压上升边沿形状的调整。
如下所示,有几个用来控制斜升支持功能的寄存器位。
•
•
•
•
•
•
DCDC_CONFIG:DCDC3_EN_UP:启用针对上升 VCON / 输出电压的斜升支持
DCDC_CONFIG:DCDC3_EN_DWN:启用针对下降 VCON / 输出电压的斜升支持
DCDC_CONFIG:DCDC3_DWN_2X:将斜降电路中的电流加倍,以加速向下斜坡
DCDC_CONFIG:DCDC3[S2:S1]:定义斜升支持停止时低于标称输出电压的阀值
SPARE0:EN_nILIM_xl:启用或禁用 DCDC3 中的负电流限制;一个大电流限值加速 Vout 的下降边沿
SPARE0:EN_FAST_RAMP:Vout 的上升边沿进一步加速;由于设置时会导致过冲,所以建议将这个位
保持清零
斜升和斜降支持电路在 GMSK 斜升期间使用,此时,VCON 输入被驱动,以定义 DCDC3 输出电压。 建议
在 DCDC3 转换器未运行在 VCON 模式中时(此时 DCDC3_CTRL:VCON = 0)将斜升支持保持在禁用状
态。
3.18 VCON 解码器
VCON 解码器可通过到引脚 VCON 的模拟信号来控制 DCDC3 的输出电压。 VCON 解码器的增益和偏移可
由寄存器 VCON 调节。 通常情况下,它将由范围在 0mV(或 200mV)至 2100mV 之内的输入电压驱动。
在 VCON 运行中,不论寄存器 DCDC3_OP 或 DCDC3_AVS 内 DCDC3_MODE 的设置如何,DCDC3 被
强制以定频 PWM 模式运行。 此外,将 VCON 设定为 1 来将转换器强制启用,与是否映射 ENABLE 位的
状态或 CLK_REQ 信号的状态无关。
增益和偏移设置在针对 VCON 寄存器的寄存器说明中。 DCDC3 斜升支持也被用在 VCON 模式中,以确保
输出电压的快速变换。
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VCON 模式下的 DCDC3 输出电压被定义为:Vout = V(VCON) x 增益 + Voffset
在 DCDC3 的典型输出电压范围介于 100mV 至 3.5V 之间时,缺省增益和偏移设置为:
•
•
增益:1.8
Voffset:-250mV
3.19 热监控和关断
这是一个监控器件结温的热保护模块。
当达到热关断温度阀值时,在复位情况下设置 TPS657120,并且发起到 STANDBY(待机)状态的变换。
在芯片温度已经减少到低于热关断阀值之前,将不会考虑器件的 POWER ON(加电)使能条件。
热保护在 ACTIVE(激活)状态下被启用。 在 STANDBY 至 ACTIVE 状态变换期间,热保护被自动启用,
并且将在由热关断事件导致的关闭序列之后的 STANDBY 状态中保持启用。 当芯片温度下降到低于热关断
温度阀值时,将启动从 STANDBY 状态的恢复(接通序列)。 在过热事件发生时,所有资源同时断电。
3.20 GPIO
在 TPS657120 中有 2 个 GPIO。 如果输出级被设定为推挽方式,它拉至由 VDDIO 设定的高压。 当
VDDIO 在 VDDIO 欠压闭锁以下时,高侧驱动器被禁用,并且输出被设定为开漏。 GPIO 的缺省状态被定义
为一个状态为低电平的输出。 此外,GPIO 允许选择添加一个内部 4.7kR 的下拉电阻器。
或者,可设定一个 GPIO,这样的话,通过将 GPIO_CFG 设定为 1 来将其分配给加电排序。 在这个情况
下,将根据 GPIOx:GPIO_SET 内的定义在内部加电排序定义的 8 个时间槽中的一个时间槽内设定 GPIO 输
出。
VDDIO
output enable
GPIO_CFG
open drain enable
GPIO_ODEN
backgate
switch
GPIOx
DATA IN
4.7k
DATA OUT
pull-down enable
GPIO_PDEN
Figure 3-2. GPIO 块
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3.21 nRESET 输入;ADR_SELECT 输入
可选择将 GPIO0 和 GPIO1 分配为 nRESET 输入或 ADR_SELECT 输入,按照寄存器说明来定义 USID[0]
位。 如下所述,由 GPIOx 寄存器中的一个位来选择其他功能:
GPIO0 (nRESET) 详细说明:
•
GPIO0:nRESET=0: 此引脚根据 OTP 编程被用作一个 GPIO。 然而,在复位状态中,在内部 OTP 被读
取前,此引脚缺省为一个 nRESET 输入,所以,为了退出复位并加载 OTP,需要按照缺省值将此引脚上
拉至一个逻辑高电平,将其重新配置为 GPIO。
•
GPIO0:nRESET=1(缺省 OTP 设置): 此引脚被用作一个低电平有效复位输入。 为了退出复位,并且
允许 TPS657120 进入待机状态,需要从外部将此引脚上拉至逻辑高电平。 在 GPIO0:nRESET = 1 时,
此引脚被自动配置为一个独立于 GPIO0:GPIO_CFG 设置的输入。
GPIO1 (ADR_SELECT) 详细说明:
•
•
GPIO1:ADR_SELECT=0:此引脚被用作 GPIO
GPIO1:ADR_SELECT=1(缺省 OTP 设置): 此引脚缺省情况下为 GPIO,一旦在引导阶段读取内部
OTP,此引脚被设定为一个地址选择位。 在 GPIO1:ADR_SEL = 1 时,此引脚被自动配置为独立于
GPIO1:GPIO_CFG 设置的输入。 引脚 ADR_SELECT 上的一个状态变化将立即生效,所以可通过改变
此引脚状态来随时更新 USID[0]。
3.22 电源状态机
此嵌入式电源控制器 (EPC) 管理器件的状态,并控制加电序列。
EPC 将支持以下状态:
•
•
•
无电源: 主电池电源电压不足以为内部 LDO 和带隙供电。 器件上的所有元件关闭。
引导阶段(读取 OTP): 内部电源和带隙激活,并且器件正在从 OTP 内存中读取其配置数据。
待机: 内部电源和带隙激活,寄存器缺省设置已被载入,并且器件正在等待 PWRON 变为高电平来启动
加电序列
•
激活: 符合器件 POWER ON(加电)使能条件,经稳压电源接通,或者可被启用为支持完全电流功
能。 复位被释放;接口激活
3.23 内部加电和断电排序的执行
TPS657120 允许加电(从 STANDBY 变为 ACTIVE 状态)以及断电(从 ACTIVE 变为 STANDBY 状态)
期间的资源内部使能。 在 TI 编辑的 OTP 内存中定义内部加电排序。 此排序可在加电和断电期间的 8 个时
间槽内启用资源。 一个资源可以与这些 8 个时间槽中的任何一个时间槽相关联,这些时间槽将在断电期间
以相反的方向进行处理。 时间槽间的延迟被固定为 500us。
资源包括:
•
•
•
降压转换器
LDO
GPIO
可以配置非自动排序资源,这样的话,它们由外部引脚或它们寄存器集中的使能位启用。 请见降压转换器使
能
3.24 针对推挽输出级/接口的 VDDIO 电压
推挽输出级被上拉至高电平,此电压被施加在用于以下引脚的 VDDIO 引脚上:
•
•
SDATA
GPIO0,1:只适用于推挽方式
接口引脚 SDATA 和 SCLK 上的信号电平为 VDDIO 电平。 一定不能施加超过 VDDIO 上电压电平的电压。
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3.25 TPS657120 接通关闭操作
TPS657120 内的加电排序是灵活且可被设置的,这样的话,它可以在向下排序被反转时以任一顺序为转换
器和 LDO 加电,或者所有转换器和 LDO 同时加电。
3.25.1 TPS657120 加电
如果 PWRON 被接至电源电压,这样的话,TPS65712 在输入电压高于 UVLO 阀值并且内部引导阶段完成
时启动其加电排序。
Vin /
VIN_LDO2
internal
Reference
System
V(C2V5)
internal supply
RFFE interface is active in
ACTIVE state only
BOOT PHASE /
READ OTP
READ
OTP
REVERSE PWR_UP
SEQUENCING
STAND
BY
PWR_UP
STAND
BY
NO
ACTIVE
STATE
SEQUENCING
PWR
3ms
PWRON
START-UP sequencing is defined by register setting to be
in any out of 8 time slots for each converter
VLDO1
VLDO2
VDCDC1
VDCDC2
8 x 500us
Iq
30uA
35uA
VDCDC3
DCDC3 disabled by device
going to STANDBY
DCDC3 enabled (or disabled) by register Bit
Figure 3-3. TPS657120 加电
3.25.2 驱动 DCDC1,DCDC2 和 LDO1 的 TPS657120 PWR_REQ
一旦 CLK_REQ1 和 CLK_REQ2 引脚被启用用来控制 DCDC1,DCDC2 和 LDO1,这些转换器 / LDO 在这
些引脚中任何一个被驱动为高电平时启用。
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Vin
PWRON
500us
VDCDC1,
VDCDC2,
LDO1
MIPI:
enable CLK_REQ control
CLK_REQ1
or
CLK_REQ2
Figure 3-4. TPS657120 断电
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3.26 MIPI RFFE 接口
有一个基于修订版本 1.00.00 技术规格的 MIPI RFFE 兼容接口。 此接口只在 TPS657120 的 ACTIVE 状态
中激活 - 请见加电时序图。 当 CLK_REQx 上的下降边沿触发 _OP 和 _AVS 寄存器重新载入时,一旦任何
直流到直流转换器或 LDO 被映射到那个引脚,就无法进行 RFFE 通信。 在将 OTP 内容重新载入寄存器的
25us 时间内,RFFE 接口保持在复位状态。 RFFE 接口也在 CLK_REQx 引脚的一个上升边沿后的 2.5us
期间内被保持在复位状态。 从地址位 SA3...SA0 与 MIPI RFFE 技术规格中定义的“唯一从地址识别符
(USID)”等效。 如 RFFE 技术规格中定义的那样,这些位位于寄存器 USID 中,以及其他位于 0x1C 至 0x1F
地址区间内的 RFFE 预定义寄存器 PM_TRIG,PRODUCT_ID 和 MANUFACTURER_ID。
3.26.1 MIPI RFFE 写入周期
SCLK
A
SDATA
SA3
SA2
SA1
SA0
0
1
0
A4
A3
A2
A1
A0
P
Register Write command frame
SSC
SCLK
A
0
SDATA
P
D7
D6
D5
D4
D3
D2
D1
D0
P
Data frame
Bus
park
Signal driven by BOM or Request Capable Slave
(SCLK always driven by BOM only)
Signal not driven; pull-down only.
For reference only
Figure 3-5. RFFE 写入周期
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3.26.2 MIPI RFFE 读取周期
SCLK
A
SDATA
SA3
SA2
SA1
SA0
0
1
1
A4
A3
A2
A1
A0
P
SSC
Register Read command frame
SCLK
A
SDATA
P
0
D7
D6
D5
D4
D3
D2
D1
D0
P
0
Bus
park
Data frame
Bus
park
Signal driven by BOM or Request Capable Slave
(SCLK always driven by BOM only)
Signal not driven; pull-down only.
Signal driven by slave
For reference only
Figure 3-6. RFFE 读取周期
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4
内存映射
4.1 寄存器说明
DCDC1_CTRL(1); Register Address: 00h
B7
B6
B5
B4
B3
B2
B1
B0
ENABLE
RSVD
IMMEDIATE
TSTEP[1]
TSTEP[0]
DCDC1_
SEL_CTRL
DCDC1_CLK_
REQ2_CTRL
DCDC1_CLK_
REQ1_CTRL
(1)
OTP
r/w
0
1
0
0
0
0
0
OTP
r/w
OTP
r/w
OTP
r/w
OTP
r/w
OTP
r/w
OTP
r/w
r
ENABLE
0 DCDC1 Disabled
1 DCDC1 Enabled
(1) DCDC1 Enabled during automatic power-up sequence
0 a voltage change of DCDC1 will be done based on the settings of TSTEP[1:0]
IMMEDIATE
1 a voltage change of DCDC1 will be done bypassing the voltage change state machine and therefore is limited by the response of the
DCDC1 converter only. With IMMEDIATE=1, TSTEP[1,0] do not define the slope of the voltage change but the time PWM mode is forced
to ensure a steep transition of the output voltage.
TSTEP[1:0]
RSVD
Time step: when changing the output voltage, the new value is reached through successive voltage steps (if not bypassed). The equivalent
programmable slew rate of the output voltage is shown in Table 4-1
Unused bit, should be written to 0
DCDC1_SEL_CT 0 DCDC1 output voltage / MODE settings are defined by DCDC1_OP register
RL
1 DCDC1 output voltage / MODE settings are defined by status of pin DCDC3_SEL
DCDC3_SEL = LOW := voltage / MODE settings are defined by DCDC1_OP
DCDC3_SEL = HIGH := voltage / MODE settings are defined by DCDC1_AVS
DCDC1_CLK_RE 0 DCDC1 enable function not mapped to CLK_REQ1 pin; DCDC1 enabled by ENABLE Bit or internal power-up sequencing setting
Q1_CTRL
1 DCDC1 enable function mapped to pin CLK_REQ1; ENABLE bit is don´t care, CLK_REQ1= LOW := DCDC1 = off, CLK_REQ1= HIGH :=
DCDC1 = on
DCDC1_CLK_RE 0 DCDC1 enable function not mapped to CLK_REQ2 pin; DCDC1 enabled by ENABLE Bit or internal power-up sequencing setting
Q2_CTRL
1 DCDC1 enable function mapped to pin CLK_REQ2; ENABLE bit is don´t care, CLK_REQ2= LOW := DCDC1 = off, CLK_REQ2= HIGH :=
DCDC1 = on
Note: CLK_REQ1 and CLK_REQ2 are logically OR´d, as soon as either one is HIGH, DCDC1 is enabled
(1) Register reset on Power On Reset (POR)
40
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DCDC2_CTRL(1); Register Address: 01h
B7
B6
B5
B4
B3
B2
B1
B0
ENABLE
RSVD
IMMEDIATE
TSTEP[1]
TSTEP[0]
DCDC2_
SEL_CTRL
DCDC2_CLK_
REQ2_CTRL
DCDC2_CLK_
REQ1_CTRL
(1)
OTP
r/w
0
1
0
0
0
0
0
OTP
r/w
OTP
r/w
OTP
r/w
OTP
r/w
OTP
r/w
OTP
r/w
r
ENABLE
0 DCDC2 Disabled
1 DCDC2 Enabled
(1) DCDC2 Enabled during automatic power-up sequence
0 a voltage change of DCDC2 will be done based on the settings of TSTEP[1:0]
IMMEDIATE
1 a voltage change of DCDC2 will be done bypassing the voltage change state machine and therefore is limited by the response of the
DCDC2 converter only. With IMMEDIATE=1, TSTEP[1,0] do not define the slope of the voltage change but the time PWM mode is forced
to ensure a steep transition of the output voltage.
TSTEP[1:0]
RSVD
Time step: when changing the output voltage, the new value is reached through successive voltage steps (if not bypassed). The equivalent
programmable slew rate of the output voltage is shown in Table 4-1
Unused bit, should be written to 0
DCDC2_SEL_CT 0 DCDC2 output voltage / MODE settings are defined by DCDC2_OP register
RL
1 DCDC2 output voltage / MODE settings are defined by status of pin DCDC3_SEL
DCDC3_SEL = LOW := voltage / MODE settings are defined by DCDC2_OP
DCDC3_SEL = HIGH := voltage / MODE settings are defined by DCDC2_AVS
DCDC2_CLK_RE 0 DCDC2 enable function not mapped to CLK_REQ1 pin; DCDC2 enabled by ENABLE Bit or internal power-up sequencing setting
Q1_CTRL
1 DCDC2 enable function mapped to pin CLK_REQ1; ENABLE bit is don´t care, CLK_REQ1= LOW := DCDC2 = off, CLK_REQ1= HIGH :=
DCDC2 = on
DCDC2_CLK_RE 0 DCDC2 enable function not mapped to CLK_REQ2 pin; DCDC2 enabled by ENABLE Bit or internal power-up sequencing setting
Q2_CTRL
1 DCDC2 enable function mapped to pin CLK_REQ2; ENABLE bit is don´t care, CLK_REQ2= LOW := DCDC2 = off, CLK_REQ2= HIGH :=
DCDC2 = on
Note: CLK_REQ1 and CLK_REQ2 are logically OR´d, as soon as either one is HIGH, DCDC2 is enabled
(1) Register reset on Power On Reset (POR)
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DCDC3_CTRL(1); Register Address: 02h
B7
B6
B5
B4
B3
B2
B1
B0
ENABLE
VCON
IMMEDIATE
TSTEP[1]
TSTEP[0]
DCDC3_
SEL_CTRL
DCDC3_CLK_
REQ2_CTRL
DCDC3_CLK_
REQ1_CTRL
0
0
1
0
0
1
0
0
OTP
r/w
OTP
OTP
r/w
OTP
r/w
OTP
r/w
OTP
r/w
OTP
r/w
OTP
r/w
r/w
ENABLE
0 DCDC3 Disabled
1 DCDC3 Enabled
(1) DCDC3 Enabled during automatic power-up sequence
0 DCDC3 output voltage defined by _OP or _AVS
1 DCDC3 output voltage defined by pin VCON
VCON
With VCON = 1, DCDC3 is enabled independently of the ENABLE bit and the converter is forced to PWM independently of DCDC3_MODE
defined in either DCDC3_OP or DCDC3_AVS.
IMMEDIATE
TSTEP[1:0]
0 a voltage change of DCDC3 will be done based on the settings of TSTEP[1:0]
1 a voltage change of DCDC3 will be done bypassing the voltage change state machine and therefore is limited by the response of the
DCDC3 converter only. With IMMEDIATE=1, TSTEP[1,0] do not define the slope of the voltage change but the time PWM mode is forced
to ensure a a steep transition of the output voltage.
Time step: when changing the output voltage, the new value is reached through successive voltage steps (if not bypassed). The equivalent
programmable slew rate of the output voltage is shown in Table 4-1
DCDC3_SEL_CT 0 DCDC3 output voltage / MODE settings are defined by DCDC3_OP register
RL
1 DCDC3 output voltage / MODE settings are defined by status of pin DCDC3_SEL
DCDC3_SEL = LOW := voltage / MODE settings are defined by DCDC3_OP
DCDC3_SEL = HIGH := voltage / MODE settings are defined by DCDC3_AVS
DCDC3_CLK_RE 0 DCDC3 enable function not mapped to CLK_REQ1 pin; DCDC3 enabled by ENABLE Bit or internal power-up sequencing setting
Q1_CTRL
1 DCDC3 enable function mapped to pin CLK_REQ1; ENABLE bit is don´t care, CLK_REQ1= LOW := DCDC3 = off, CLK_REQ1= HIGH :=
DCDC3 = on
DCDC3_CLK_RE 0 DCDC3 enable function not mapped to CLK_REQ2 pin; DCDC3 enabled by ENABLE Bit or internal power-up sequencing setting
Q2_CTRL
1 DCDC3 enable function mapped to pin CLK_REQ2; ENABLE bit is don´t care, CLK_REQ2= LOW := DCDC3 = off, CLK_REQ2= HIGH :=
DCDC3 = on
Note: CLK_REQ1 and CLK_REQ2 are logically OR´d, as soon as either one is HIGH, DCDC3 is enabled
(1) Register reset on Power On Reset (POR)
Table 4-1. DCDCx TSTEP Settings
TSTEP[1:0]
Time per voltage step
according to the DCDCx
voltage table (µs)
equivalent Slew Rate for a 25mV step
size (mV/µs)
00
01
10
11
0.9
1.8
3.5
6.6
30
15
7.5
3.75
42
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DCDC1_OP(1); Register Address: 03h
B7
B6
RSVD
0
B5
SEL[5]
0
B4
SEL[4]
1
B3
SEL[3]
1
B2
SEL[2]
0
B1
B0
SEL[0]
0
DCDC1_MODE
SEL[1]
0
0
OTP
OTP
r/w
OTP
r/w
OTP
r/w
OTP
r/w
OTP
r/w
OTP
r/w
r/w
r
DCDC1_MODE
0 Enable Automatic PWM/PFM mode switching
1 Force PWM
RSVD
Unused bit, should be written to 0
SEL[5:0]
DCDC1 Output Voltage Selection based on DCDC1 Voltage Settings Table.
(1) Register reset on Power On Reset (POR)
DCDC1_AVS(1); Register Address: 04h
B7
B6
RSVD
0
B5
SEL[5]
0
B4
SEL[4]
1
B3
SEL[3]
1
B2
SEL[2]
0
B1
SEL[1]
0
B0
SEL[0]
0
DCDC1_MODE
0
OTP
OTP
r/w
OTP
r/w
OTP
r/w
OTP
r/w
OTP
r/w
OTP
r/w
r/w
r
DCDC1_MODE
0 Enable Automatic PWM/PFM mode switching
1 Force PWM
RSVD
Unused bit, should be written to 0
SEL[5:0]
DCDC1 Output Voltage Selection based on DCDC1Voltage Settings Table.
(1) Register reset on Power On Reset (POR)
DCDC2_OP(1); Register Address: 05h
B7
B6
RSVD
0
B5
SEL[5]
1
B4
SEL[4]
1
B3
SEL[3]
0
B2
SEL[2]
1
B1
SEL[1]
0
B0
SEL[0]
1
DCDC2_MODE
0
OTP
OTP
r/w
OTP
r/w
OTP
r/w
OTP
r/w
OTP
r/w
OTP
r/w
r/w
r
DCDC2_MODE
0 Enable Automatic PWM/PFM mode switching
1 Force PWM
RSVD
Unused bit, should be written to 0
SEL[5:0]
DCDC2 Output Voltage Selection based on DCDC2 Voltage Settings Table.
(1) Register reset on Power On Reset (POR)
DCDC2_AVS(1); Register Address: 06h
B7
B6
RSVD
0
B5
SEL[5]
1
B4
SEL[4]
1
B3
SEL[3]
0
B2
SEL[2]
1
B1
SEL[1]
0
B0
SEL[0]
1
DCDC2_MODE
0
OTP
OTP
r/w
OTP
r/w
OTP
r/w
OTP
r/w
OTP
r/w
OTP
r/w
r/w
r
DCDC2_MODE
0 Enable Automatic PWM/PFM mode switching
1 Force PWM
RSVD
Unused bit, should be written to 0
SEL[5:0]
DCDC2 Output Voltage Selection based on DCDC2 Voltage Settings Table.
(1) Register reset on Power On Reset (POR)
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DCDC3_OP(1); Register Address: 07h
B7
B6
B5
SEL[5]
0
B4
SEL[4]
0
B3
SEL[3]
0
B2
SEL[2]
0
B1
SEL[1]
0
B0
SEL[0]
0
DCDC3_MODE
EN_BYPASS
0
OTP
0
OTP
r/w
OTP
r/w
OTP
r/w
OTP
r/w
OTP
r/w
OTP
r/w
OTP
r/w
r/w
DCDC3_MODE
0 Enable Automatic PWM/PFM mode switching
1 Force PWM
EN_BYPASS
0 BYPASS switch is not forced ON
1 BYPASS switch is forced ON; over voltage protection at VDCDC3 is active and will clear this bit once VDCDC3 exceeds 4.18V
DCDC3 Output Voltage Selection shown in DCDC3 Voltage Settings Table.
SEL[6:0]
Note:
DCDC3_OP register settings are active when DCDC3_SEL = LOW
(1) Register reset on Power On Reset (POR)
DCDC3_AVS(1); Register Address: 08h
B7
B6
B5
SEL[5]
0
B4
SEL[4]
0
B3
SEL[3]
0
B2
SEL[2]
0
B1
SEL[1]
0
B0
SEL[0]
0
DCDC3_MODE
EN_BYPASS
0
OTP
0
OTP
r/w
OTP
r/w
OTP
r/w
OTP
r/w
OTP
r/w
OTP
r/w
OTP
r/w
r/w
DCDC3_MODE
0 Enable Automatic PWM/PFM mode switching
1 Force PWM
EN_BYPASS
0 BYPASS switch is not forced ON
1 BYPASS switch is forced ON; over voltage protection at VDCDC3 is active and will clear this bit once VDCDC3 exceeds 4.18V
DCDC3 Output Voltage Selection shown in DCDC3 Voltage SettingsTable.
SEL6:0]
Note:
DCDC3_AVS register settings are active when DCDC3_SEL = HIGH
(1) Register reset on Power On Reset (POR)
VCON(1); Register Address: 09h
B7
B6
B5
B4
B3
B2
B1
B0
RSVD
VCON_
VCON_
VCON_
VCON_GAIN[3]
VCON_GAIN[2]
VCON_GAIN[1]
VCON_GAIN[0]
OFFSET[2]
OFFSET[1]
OFFSET[0]
0
1
0
1
0
1
1
0
OTP
r/w
OTP
r/w
OTP
r/w
OTP
r/w
OTP
r/w
OTP
r/w
OTP
r/w
r
VCON_OFFSET[ VCON offset settings shown in table VCON OFFSET SETTINGS
2:0]
VCON_GAIN[3:0] VCON gain settings shown in table VCON GAIN SETTINGS
RSVD
Unused bit, should be written to 0
(1) Register reset on Power On Reset (POR)
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Table 4-2. VCON Gain Settings
VCON_GAIN[3:0]
0000
GAIN
1.208
1.292
1.417
1.500
1.583
1.708
1.792
1.917
VCON_GAIN[3:0]
1000
GAIN
2.000
2.083
2.208
2.292
2.417
2.500
2.583
2.708
0001
1001
0010
1010
0011
1011
0100
1100
0101
1101
0110
1110
0111
1111
Table 4-3. VCON Offset Settings
VCON_OFFSET[2:0]
000
OFFSET (mV)
0
001
010
011
100
101
110
111
-50
-100
-150
-200
-250
-300
-350
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Table 4-4. DCDC1 and DCDC2 Voltage Settings
SEL(DCDCx)[5:0]
VDCDCx (V)
0.80
SEL(DCDCx)[5:0]
100000
100001
100010
100011
100100
100101
100110
100111
101000
101001
101010
101011
101100
101101
101110
101111
110000
110001
110010
110011
110100
110101
110110
110111
111000
111001
111010
111011
111100
111101
111110
111111
VDCDCx (V)
1.900
1.925
1.950
1.975
2.000
2.025
2.050
2.075
2.100
2.125
2.150
2.175
2.20
000000
000001
000010
000011
000100
000101
000110
000111
001000
001001
001010
001011
001100
001101
001110
001111
010000
010001
010010
010011
010100
010101
010110
010111
011000
011001
011010
011011
011100
011101
011110
011111
0.90
1.00
1.05
1.10
1.15
1.20
1.25
1.300
1.325
1.350
1.375
1.400
1.425
1.450
1.475
1.500
1.525
1.550
1.575
1.600
1.625
1.650
1.675
1.700
1.725
1.750
1.775
1.800
1.825
1.850
1.875
2.25
2.30
2.35
2.40
2.45
2.50
2.55
2.60
2.65
2.70
2.75
2.80
2.85
2.90
2.95
3.00
3.10
3.20
3.30
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Table 4-5. DCDC3 Voltage Settings
SEL(DCDCx)[5:0]
000000
000001
000010
000011
000100
000101
000110
000111
001000
001001
001010
001011
001100
001101
001110
001111
010000
010001
010010
010011
010100
010101
010110
010111
011000
011001
011010
011011
011100
011101
011110
011111
VDCDCx (V)
0.80
0.85
0.90
0.95
1.00
1.05
1.10
1.15
1.20
1.25
1.30
1.35
1.40
1.45
1.50
1.55
1.60
1.65
1.70
1.75
1.80
1.85
1.90
1.95
2.00
2.05
2.10
2.15
2.20
2.25
2.30
2.35
SEL(DCDCx)[5:0]
100000
100001
100010
100011
100100
100101
100110
100111
101000
101001
101010
101011
101100
101101
101110
101111
110000
110001
110010
110011
110100
110101
110110
110111
111000
111001
111010
111011
111100
111101
111110
111111
VDCDCx (V)
2.40
2.45
2.50
2.55
2.60
2.65
2.70
2.75
2.80
2.85
2.90
2.95
3.00
3.05
3.10
3.15
3.20
3.25
3.30
3.35
3.40
3.45
3.50
3.55
3.60
3.60
3.60
3.60
3.60
3.60
3.60
3.60
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B0
LDO_CTRL(1); Register Address: 0Ah
B7
B6
B5
B4
B3
B2
B1
RSVD
RSVD
RSVD
RSVD
LDO2_CLK_
REQ2_CTRL
LDO2_CLK_
REQ1_CTRL
LDO1_CLK_
REQ2_CTRL
LDO1_CLK_
REQ1_CTRL
0
r
0
0
0
r
0
0
0
0
OTP
r/w
OTP
r/w
OTP
r/w
OTP
r/w
r
r
RSVD
Unused bit, should be written to 0
LDO2_CLK_RE 0 LDO2 enable function not mapped to CLK_REQ2 pin; LDO2 enabled by ENABLE Bit or internal power-up sequencing setting
Q2_CTRL
1 LDO2 enable function mapped to pin CLK_REQ2 pin; ENABLE bit is don´t care, CLK_REQ2= LOW := LDO2 = off, CLK_REQ2= HIGH :=
LDO2 = on
LDO2_CLK_RE 0 LDO2 enable function not mapped to CLK_REQ1 pin; LDO2 enabled by ENABLE Bit or internal power-up sequencing setting
Q1_CTRL
1 LDO2 enable function mapped to pin CLK_REQ1 pin; ENABLE bit is don´t care, CLK_REQ1= LOW := LDO2 = off, CLK_REQ1= HIGH :=
LDO2 = on
LDO1_CLK_RE 0 LDO1 enable function not mapped to CLK_REQ2 pin; LDO1 enabled by ENABLE Bit or internal power-up sequencing setting
Q2_CTRL
1 LDO1 enable function mapped to pin CLK_REQ2 pin; ENABLE bit is don´t care, CLK_REQ2= LOW := LDO1 = off, CLK_REQ2= HIGH :=
LDO1 = on
LDO1_CLK_RE 0 LDO1 enable function not mapped to CLK_REQ1 pin; LDO1 enabled by ENABLE Bit or internal power-up sequencing setting
Q1_CTRL
1 LDO1 enable function mapped to pin CLK_REQ1 pin; ENABLE bit is don´t care, CLK_REQ1= LOW := LDO1 = off, CLK_REQ1= HIGH :=
LDO1 = on
Note: CLK_REQ1 and CLK_REQ2 are logically OR´d if both pins are assigned to the same LDO; as soon as either one is HIGH, LDOx is
enabled
(1) Register reset on Power On Reset (POR)
LDO1_OP(1); Register Address: 0Bh
B7
ENABLE
(1)
B6
ECO
0
B5
SEL[5]
0
B4
SEL[4]
1
B3
SEL[3]
1
B2
SEL[2]
0
B1
SEL[1]
0
B0
SEL[0]
0
OTP
r/w
OTP
r/w
OTP
r/w
OTP
r/w
OTP
r/w
OTP
r/w
OTP
r/w
r/w
ENABLE
0 LDO1 Disabled
1 LDO1 Enabled
(1) LDO1 Enabled during automatic power-up sequence
0 LDO1 is in normal mode
ECO
1 LDO1 is in power save mode
SELREG
0 LDO1 Voltage selected by LDO1_OP register
1 LDO1 Voltage selected by LDO1_AVS register
Supply Voltage - setting shown in Table 4-6
SEL[5:0]
(1) Register reset on Power On Reset (POR)
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LDO2_OP(1); Register Address: 0Ch
B7
ENABLE
(1)
B6
ECO
0
B5
SEL[5]
1
B4
SEL[4]
1
B3
SEL[3]
0
B2
SEL[2]
0
B1
B0
SEL[0]
0
SEL[1]
0
OTP
r/w
OTP
r/w
OTP
r/w
OTP
r/w
OTP
r/w
OTP
r/w
OTP
r/w
r/w
ENABLE
0 LDO2 Disabled
1 LDO2 Enabled
(1) LDO2 Enabled during automatic power-up sequence
0 LDO2 is in normal mode
ECO
1 LDO2 is in power save mode
SELREG
0 LDO2 Voltage selected by LDO2_OP register
1 LDO2 Voltage selected by LDO2_AVS register
Supply Voltage - setting shown in Table 4-6
SEL[5:0]
(1) Register reset on Power On Reset (POR)
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Table 4-6. LDO Voltage Settings
SEL[5:0]
LDOx Output
(V)
SEL[5:0]
LDOx Output
(V)
000000
000001
000010
000011
000100
000101
000110
000111
001000
001001
001010
001011
001100
001101
001110
001111
010000
010001
010010
010011
010100
010101
010110
010111
011000
011001
011010
011011
011100
011101
011110
011111
1.200
1.225
1.250
1.275
1.300
1.325
1.350
1.375
1.400
1.425
1.450
1.475
1.500
1.525
1.550
1.575
1.600
1.625
1.650
1.675
1.700
1.725
1.750
1.775
1.800
1.825
1.850
1.875
1.900
1.925
1.950
1.975
100000
100001
100010
100011
100100
100101
100110
100111
101000
101001
101010
101011
101100
101101
101110
101111
110000
110001
110010
110011
110100
110101
110110
110111
111000
111001
111010
111011
111100
111101
111110
111111
2.000
2.050
2.100
2.150
2.200
2.250
2.300
2.350
2.400
2.450
2.500
2.550
2.600
2.650
2.700
2.750
2.800
2.850
2.900
2.950
3.000
3.050
3.100
3.150
3.200
3.250
3.300
3.350
3.400
3.400
3.400
3.400
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DEVCTRL(1); Register Address: 0Dh
B7
B6
RSVD
0
B5
RSVD
0
B4
RSVD
0
B3
RSVD
0
B2
RSVD
0
B1
B0
RSVD
0
PWR_OFF_SEQ
RSVD
0
0
OTP
r/w
r
r
r
r
r
r
r
PWR_OFF_SEQ 0 All resources disabled at the same time
1 Power-off will be sequencial, reverse of power-on sequence (first resource to power on will be the last to power off)
Note: each power-up / power-down time slot is 500us
RSVD
Unused bit read returns0
(1) Register reset on Power On Reset (POR)
DISCHARGE(1); Register Address: 0Eh
B7
B6
B5
B4
B3
B2
B1
B0
RSVD
DCDC3_
DCDC2_
DCDC1_
RSVD
RSVD
LDO2_
LDO1_
DISCHARGE
DISCHARGE
DISCHARGE
DISCHARGE
DISCHARGE
0
r
0
0
0
0
r
0
r
0
0
OTP
r/w
OTP
r/w
OTP
r/w
OTP
r/w
OTP
r/w
RSVD
Unused bit read returns0
DCDC3_DISCHA 0 DCDC3 output is not discharged when disabled
RGE
1 DCDC3 output is discharged when disabled
DCDC2_DISCHA 0 DCDC2 output is not discharged when disabled
RGE
1 DCDC2 output is discharged when disabled
DCDC1_DISCHA 0 DCDC1 output is not discharged when disabled
RGE
1 DCDC1 output is discharged when disabled
LDO2_DISCHAR 0 LDO2 output is not discharged when disabled
GE
1 LDO2 output is discharged when disabled
LDO1_DISCHAR 0 LDO1 output is not discharged when disabled
GE
1 LDO1 output is discharged when disabled
(1) Register reset on Power On Reset (POR)
PGOOD(1); Register Address: 0Fh
B7
B6
B5
B4
B3
B2
B1
B0
RSVD
PGOOD_DCDC3 PGOOD_DCDC2 PGOOD_DCDC1
RSVD
RSVD
PGOOD_LDO2
PGOOD_LDO1
0
r
-
-
-
0
r
0
r
-
-
r
r
r
r
r
PGOOD_DCDCx the Bit is set or cleared by the power-good comparator in the DCDC converter block
0 DCDCx output voltage is below its target regulation voltage or disabled
1 DCDCx output voltage is in regulation
PGOOD_LDOx
the Bit is set or cleared by the power-good comparator in the LDO converter block
0 LDOx output voltage is below its target regulation voltage or disabled
1 LDOx output voltage is in regulation or in ECO mode
Note: The PGOOD_LDOx Bit is not valid if the LDO is enabled but the supply voltage to the LDO is below 1V.
(1) Register reset on Power On Reset (POR)
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GPIO0(1); Register Address: 10h
B7
RSVD
0
B6
nRESET
1
B5
B4
RSVD
0
B3
B2
GPIO_CFG
0
B1
B0
GPIO_SET
0
GPIO_ODEN
GPIO_PDEN
GPIO_STS
0
0
-
OTP
r/w
OTP
r/w
OTP
r/w
OTP
OTP
r
r
r/w
r
r/w
RSVD
Unused bit read returns 0
nRESET
0 pin is GPIO after OTP configuration has been read; connect external pull-up to a logic HIGH in order to exit reset state allowing to re-
configure as GPIO
1 pin is active low reset input per default as well as after OTP configuration has been read; pin is input per default independent of setting in
GPIO_CFG
GPIO_ODEN
GPIO_PDEN
GPIO_CFG
GPIO_STS
GPIO_SET
0 Push-pull output mode
1 Open drain output mode
0 GPIO pad pull-down control - Pull-down is disabled
1 GPIO pad pull-down control - Pull-down is enabled
0 Configuration of the GPIO pad direction - the pad is configured as an input
1 The GPIO pad is configured as an output, GPIO assigned to power-up sequence
0 Status of the GPIO pad
1 Status of the GPIO pad
0 Value set to logic 1'b0 on the GPIO output when configured in output mode
1 Value set to logic 1'b1 on the GPIO output when configured in output mode
(1) Register reset on Power On Reset (POR)
GPIO1(1); Register Address: 11h
B7
RSVD
0
B6
B5
B4
RSVD
0
B3
B2
GPIO_CFG
0
B1
B0
GPIO_SET
0
ADR_SELECT
GPIO_ODEN
GPIO_PDEN
GPIO_STS
1
0
0
-
OTP
r/w
OTP
r/w
OTP
r/w
OTP
OTP
r
r
r/w
r
r/w
RSVD
Unused bit read returns 0
0 pin is GPIO
ADR_SELECT
1 actual pin status defines the LSB of the MIPI device address defined in USID[0]; while the device is in reset state, the pin is
ADR_SELECT input independent of setting in GPIO_CFG
GPIO_ODEN
GPIO_PDEN
GPIO_CFG
GPIO_STS
GPIO_SET
0 Push-pull output mode
1 Open drain output mode
0 GPIO pad pull-down control - Pull-down is disabled
1 GPIO pad pull-down control - Pull-down is enabled
0 Configuration of the GPIO pad direction - the pad is configured as an input
1 The GPIO pad is configured as an output, GPIO assigned to power-up sequence
0 Status of the GPIO pad
1 Status of the GPIO pad
0 Value set to logic 1'b0 on the GPIO output when configured in output mode
1 Value set to logic 1'b1 on the GPIO output when configured in output mode
(1) Register reset on Power On Reset (POR)
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DCDC_CONFIG1(1) ; Register Address: 12h
B7
B6
B5
B4
B3
B2
B1
B0
DCDC3_OVP
DCDC3_
DWN_2X
DCDC3_
EN_DWN
DCDC3_EN_UP
DCDC3_FA2
DCDC3_FA1
DCDC3_S2
DCDC3_S1
0
0
0
0
0
0
1
1
OTP
r/w
OTP
OTP
r/w
OTP
r/w
OTP
OTP
OTP
OTP
r/w (read only)
Unused bit read returns0
r/w (read only)
r/w (read only)
r/w (read only)
r/w (read only)
SPARE
DCDC3_OVP
0 DCDC3 overvoltage protection not triggered, bypass switch and ramp support status depend on DCDC3_EN_UP and EN_BYPASS bits
in DCDC3_OP and DCDC3_AVS registers
1 DCDC3 overvoltage protection triggered, bypass switch and ramp uspport bits are ignored and both features are disabled in OVP. Clear
bit to clear OVP after an OVP event.
DCDC3_DWN_2
X
0 DCDC3 down ramp high speed disabled
1 DCDC3 down ramp high speed enabled
DCDC3_EN_DW 0 DCDC3 down ramp support disabled
N
1 DCDC3 down ramp suport enabled
It is recommended to keep the ramp-down support disabled when DCDC3 is not operated in VCON mode (DCDC3_CTRL:VCON=0)
0 DCDC3 up ramp support disabled
DCDC3_EN_UP
DCDC3_FA2
1 DCDC3 up ramp support enabled
0 fast-on HSD not active for DCDC3
1 fast-on HSD active for DCDC3
0 slow-off HSD not active for DCDC3
1 slow-off HSD active for DCDC3
ramp-up support threshold voltage (available for Rev 1.1 only)
00 threshold = -50mV
DCDC3_FA1
DCDC3_S2:S1
01 threshold = -100mV
10 threshold = -150mV
11 threshold = -200mV
Note:
r/w (read only): r/w for engineering use; read only in production
(1) Register reset on Power On Reset (POR)
DCDC_CONFIG2(1) ; Register Address: 13h
B7
B6
B5
B4
B3
B2
B1
B0
RSVD
RSVD
RSVD
RSVD
RSVD
DCDC3_
SSC_DELTA
DCDC3_
EN_SSC
DCDC3_
EN_CP_OSC
0
OTP
r
0
0
OTP
r
0
OTP
r
0
OTP
r
1
0
1
OTP
OTP
OTP
OTP
r
r/w (read only)
r/w (read only)
r/w (read only)
SPARE
Unused bit read returns0
DCDC3_SSC_DE 0 SSC variation 200kHz
LTA
1 SSC variation 300kHz
DCDC3_EN_SSC 0 spread spectrum clocking is off
1 spread spectrum clocking is on
DCDC3_EN_CP_ 0 oscillator source dcdc3-clk
OSC
1 oscillator source bypass-cp-clk
Note:
r/w (read only): r/w for engineering use; read only in production
(1) Register reset on Power On Reset (POR)
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SPARE0(1) ; Register Address: 14h
B7
SPARE
0
B6
SPARE
0
B5
B4
B3
B2
B1
B0
EN_FAST_RAMP
DCDC1/2_FA2
DCDC1/2_FA1
DCDC3_synch
nILIM_MAPPING
EN_nILIM_xl
1
0
0
0
0
1
OTP
r/w
OTP
r/w
OTP
r/w
OTP
r/w
OTP
r/w
OTP
r/w
OTP
r/w
OTP
r/w
SPARE
Note:
Unused bit read returns 0
for later use
EN_FAST_RAMP available from rev 1.2 of silicon
0 ramp speed of DCDC3 in VCON mode is as in previous versions
1 fast ramp-up enabled, the rising edge in VCON mode is speed-up
0 fast-on HSD not active for DCDC1 and DCDC2
DCDC1/2_FA2
DCDC1/2_FA1
DCDC3_synch
1 fast-on HSD active for DCDC1 and DCDC2
0 slow-off HSD not active for DCDC1 and DCDC2
1 slow-off HSD active for DCDC1 and DCDC2
available from rev 1.1 of silicon
0 DCDC3 not synchzronized to DCDC1 and DCDC2; SSC option allowed
1 DCDC3 synchzronized to DCDC1 and DCDC2; SSC option not allowed
nILIM_MAPPING available from rev 1.1 of silicon
0 negative current limit for DCDC3 is defined by bit EN_nILIM_xl
1 negative current limit for DCDC3 is mapped to pin DCDC3_SEL and defined as listed below:
DCDC3_SEL = 0: negative current limit is disabled (for VCON up-ramping)
DCDC3_SEL = 1: negative current limit is enabled (for VCON down-ramping)
Note: nILIM_MAPPING is not gating DCDCx_SEL_CTRL bits in registers DCDCx_CTRL and vice versa
EN_nILIM_xl
available from rev 1.1 of silicon
0 negative current limit for DCDC3 is disabled; the setting still allows a small negative inductor current needed to operate the converter in
PWM mode at zero load current
1 negative current limit for DCDC3 enabled; needed for a fast ramp down of the output voltage in VCON mode
(1) Register reset on Power On Reset (POR)
VERNUM(1) ; Register Address: 15h
B7
B6
B5
B4
B3
B2
B1
B0
VERNUM
VERNUM
VERNUM
VERNUM
VERNUM
VERNUM
VERNUM
VERNUM
0
OTP
r
0
OTP
r
0
OTP
r
1
OTP
r
0
OTP
r
0
OTP
r
1
OTP
r
1
OTP
r
VERNUM
Value depending on silicon revision
0x00 - hardware revision 1.0
0x01 - hardware revision 1.1
0x11 - hardware revision 1.1 with programming "42"
0x12 - hardware revision 1.2 with programming "42"
0x13 - hardware revision 1.3 with programming "42"
(1) Register reset on Power On Reset (POR)
54
内存映射
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PM_TRIG(1) ; Register Address: 1Ch; function not supported by TPS657120
B7
PWR_MODE[1]
0
B6
B5
B4
B3
B2
B1
B0
PWR_MODE[0]
PM_TRIG[5]
PM_TRIG[4]
PM_TRIG[3]
PM_TRIG[2]
PM_TRIG[1]
PM_TRIG[0]
0
0
0
0
0
0
0
OTP
OTP
r/w
OTP
r/w
OTP
r/w
OTP
r/w
OTP
r/w
OTP
r/w
OTP
r/w
r/w
PM_TRIG[5:0]
PWR_MODE[1:0]
(1) Register reset on Power On Reset (POR)
PRODUCT_ID(1) ; Register Address: 1Dh
B7
ID[7]
1
B6
B5
ID[5]
1
B4
ID[4]
0
B3
ID[3]
0
B2
ID[2]
0
B1
ID[1]
0
B0
ID[0]
0
ID[6]
1
r/w
r/w
r/w
r/w
r/w
r/w
r/w
r/w
ID[7:0]
Product Identification
(1) Register reset on Power On Reset (POR)
MANUFACTURER_ID(1) ; Register Address: 1Eh
B7
B6
B5
B4
B3
B2
B1
B0
MID[7]
MID[6]
MID[5]
MID[4]
MID[3]
MID[2]
MID[1]
MID[0]
0
r
0
r
0
r
0
r
0
r
0
r
1
r
0
r
MID[7:0]
Manufacturer Identification
(1) Register reset on Power On Reset (POR)
USID(1) ; Register Address: 1Fh
B7
SPARE
0
B6
SPARE
0
B5
B4
B3
USID[3]
0
B2
USID[2]
1
B1
USID[1]
0
B0
USID[0]
x
MID[9]
MID[8]
0
-
1
-
OTP
OTP
OTP
OTP
OTP
OTP /
ADR_SELECT
r/w
r/w
r
r
r/w (read only)
r/w (read only)
r/w (read only)
r
USID[3:0]
unique slave identifier; GPIO1 can optionally be used as the adress select input for USID[0], if the option is active, USID[0] is set "1" when
ADR_SELECT is pulled to a HIGH level, USID[0] is set to "0" when ADR_SELECT is set LOW again. It is allowed to change the state of
ADR_SELECT during operation. and USID[0] will update accordignly.
MID[8,9]
SPARE
Note:
manufacurer ID MSB
for later use
r/w (read only): r/w for engineering use; read only in production
(1) Register reset on Power On Reset (POR)
Copyright © 2013, Texas Instruments Incorporated
内存映射
55
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5
应用范围
5.1 直流到直流转换器
5.1.1 输出滤波器设计(电感器和输出电容器)
5.1.1.1 电感器选择
这些转换器通常与一个 1.5µH 或 2.2µH 输出电感器一同运行。 所选择的电感器必须设定额定直流电阻和饱
和电流。 电感的直流电阻将直接影响转换器的效率。 因此,为了实现最高效率,应该选择一个具有最低直
流电阻的电感器。
Equation 1 计算静态负载条件下的最大电感器电流。 电感器的饱和电流额定值应该高于 Equation 1 中计算
出的最大电感器电流。 此建议的原因是,重负载瞬态期间,电感器电流将上升,直至高于计算出的值。
Vout
1 -
ΔIL
Vin
ΔIL = Vout ´
ILmax = Ioutmax +
L ´ f
2
(1)
其中:
f = 开关频率(典型值 2.25MHz)
L = 电感器值
ΔIL = 峰值到峰值电感器纹波电流
ILmax = 最大电感器电流
最高电感器电流将在最大 Vin 时出现。
开核电感器具有一个软饱和特性,并且它们通常处理较高电感器电流与一个相似屏蔽电感器间的关系。
一个更加保守的方法是为相应转换器的最大开关电流选择电感器电流额定值。 必须考虑在内的是,不同电感
器间的核心材料会有所不同,这将影响效率,特别是在较高开关频率时更是如此。
谨记,降压转换器具有内部环路补偿。 内部环路补偿被设计用来与下方计算得出的输出滤波器角频率一同工
作:
1
fc =
with L = 1.5 mH, Cout = 10 mF
2π L ´ Cout
(2)
实际情况是,外部 L-C 滤波器的选择必须考虑上述等式。 一般情况下,在选择较小电感器或增加输出电容
器值的同时,L x COUT 的乘积应该恒定。
56
应用范围
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对于可用的电感器,请参考 Table 5-1 和典型应用范围。
Table 5-1. 经测试的电感器
电感器类型
电感器值
供应商
东光
注释
MDT1608-CH2R2M
2.2µH
用于 DCDC1 和 DCDC2(小尺
寸)
MDT2012-CH2R2N
DFE201610C-2R2
DFE252010-1R5N
2.2µH
2.2µH
1.5µH
东光
东光
东光
用于 DCDC1 和 DCDC2(小尺
寸,高效)
用于 DCDC1 和 DCDC2(高
效)
用于 DCDC3
5.1.1.2 输出电容器选择
降压转换器的高级快速响应电压模式控制系统配置可使用典型值为 10µF 的小型陶瓷电容器,在重负载瞬态
条件下没有大输出电压下冲和过冲。 具有低等效串联电阻 (ESR) 值的陶瓷电容器可获得最低输出电压纹
波,因此建议使用此类电容器。 对于电感值为 1.5µH 或 2.2µH 的电感器,可使用电容值为 10µF 的电容
器。 请见推荐组件
如果使用陶瓷输出电容器,电容器 RMS 纹波电流额定值将始终符合应用要求。 只是为了实现完整性,RMS
纹波电流可计算为:
Vout
1 -
1
Vin
IRMSCout = Vout ´
´
L × f
2 ´
3
(3)
在标称负载电流时,电感转换器运行在 PWM 模式下,并且总体输出电压纹波是电压尖峰(由输出电容器
ESR 导致)加上电压纹波(由输出电容器充放电导致)的总和:
Vout
1 -
æ
ç
è
1
ö
÷
ø
Vin
ΔVout = Vout ´
´
+ ESR
L × f
8 ´ Cout ´ f
(4)
其中,最高输出电压纹波在最高输入电压 Vin 时出现。
轻负载电流时,转换器运行在省电模式,并且输出电压纹波取决于输出电容器值。 输出电压纹波由内部比较
器延迟和外部电容器设定。 典型输出电压纹波少于标称输出电压的 1%。
5.1.1.3 输入电容器 / 输出电容器选择
由于降压转换器本身具有一个脉冲输入电流,为了实现最佳输入电压滤波,并且最大限度地减少由高输入电
压尖峰导致的其它电路干扰,需要一个低 ESR 输入电容器。 这些转换器需要一个电容值为 10µF 的陶瓷输
入电容器。 为了实现更好的输入电压滤波,可尽可能地增加输入电容器。 由于输出电容器影响环路稳定
性,到所需输出电感值的任何偏差有可能导致直流到直流转换器或 LDO 变得不稳定。
Table 5-2. 已经测试电容器
类型
值
电压额定值
6.3V
尺寸
0402
0402
0603
0603
0603
0805
0805
供应商
牧田
牧田
牧田
牧田
牧田
牧田
牧田
材料
GRM155R60J475ME87
GRM155R60J225ME15D
GRM185R60J225
4.7µF
2.2µF
2.2µF
4.7µF
10µF
22μF
47μF
陶瓷 X5R
陶瓷 X5R
陶瓷 X5R
陶瓷 X5R
陶瓷 X5R
陶瓷 X5R
陶瓷 X5R
6.3V
6.3V
GRM188R60J475KE19
GRM188R61A106ME69
GRM21BR60J226M
GRM21BR60J476ME15
6.3V
10V
6.3V
6.3V
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应用范围
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5.1.1.4 DCDC1,DCDC2 和 DCDC3 上的电压变化
运行期间,直流到直流转换器的输出电压可由数字接口更改。 此外,可以对直流到直流转换器进行配置,这
样的话,转换 DCDC3_SEL 可以在寄存器 DCDCx_OP 和 DCDCx_AVS 定义的两个不同输出电压集合间切
换。
5.2 布局布线注意事项
对于所有开关电源,布局布线是设计中的重要一个步骤。 此器件的正确功能在很大程度上取决于印刷电路板
(PCB) 布局布线。 电路板布局布线时必须小心,以获得指定的性能。 如果没有仔细完成布局布线,稳压器
也许会出现糟糕的线路和/或负载调节,稳定性问题以及电磁干扰 (EMI) 问题。 提供一个低阻抗接地路径很
关键。 因此,在主电流路径上使用宽且短的迹线。 输入电容必须被放置在尽可能靠近 IC 引脚以及电感器和
输出电容器的位置上。
为了避免接地噪声,应该将接至 GND 引脚(返回小信号分量)和输出电容器高电流的普通路径保持尽可能
的短。 VDCDCx 迹线应该连接至输出电容器的右侧,并且远离嘈杂组件和迹线(例如,L1,L2 和 L3 迹
线)。 与 TPS657120 布局布线相关的详细信息请参见 EVM 使用指南。
5.3 应用电路原理图
10uF
TPS657120
ICE9245
VINDCDC1/2
VIN
C2V5
2.2uH
RF transceiver
low voltage supply
DCDC1
300mA
1.7V
Q12
Q13
POWER
CONTROL
SW1
VDDL
1uF
VDCDC1
10uF
SDATA
SCLK
PGND1/2
MIPI RFFE
i/f
2.2uH
RF transceiver
high voltage supply
Q22
Q23
DCDC2
250mA
2.65V
SW2
VDDH
VCON_DCDC3
DCDC3_SEL
10uF
VDCDC2
22uF
CLK_REQ1
CLK_REQ2
VINDCDC3
VIN
1.5uH
Q22
Q23
0.1V to 3.8V
4.7uF
DCDC3
2A
RF-PA supply
SW3
PWRON
VDDIO
VDCDC3
PGND3
BYPASS
switch
VDD_IF
GPIO0 (nReset)
GPIO1 (ADR_SELECT)
GPIO
VINLDO1
VLDO1
LDO1
1.8V
1uF
(1.2V-3.3V, 50mV
step @10mA)
Low noise
2.2uF
VIN_ANA / VINLDO2
4.7uF
VIN
1uF
LDO2
(1.2V-3.3V, 50mV
step @10mA)
Low noise
2.8V
VLDO2
to antenna
switch
BIAS
100nF
VREF1V0
from baseband
PA
4.7uF
AGND
Thermal
shutdown
Figure 5-1. 针对 SP30 RF 电源管理集成电路 (PMIC) 的手机电池连接
58
应用范围
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PACKAGE OPTION ADDENDUM
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10-Dec-2020
PACKAGING INFORMATION
Orderable Device
Status Package Type Package Pins Package
Eco Plan
Lead finish/
Ball material
MSL Peak Temp
Op Temp (°C)
Device Marking
Samples
Drawing
Qty
(1)
(2)
(3)
(4/5)
(6)
TPS657120YFFR
ACTIVE
DSBGA
YFF
30
3000 RoHS & Green
SNAGCU
Level-1-260C-UNLIM
-40 to 85
TPS
657120
(1) The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2) RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance
do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may
reference these types of products as "Pb-Free".
RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption.
Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of <=1000ppm threshold. Antimony trioxide based
flame retardants must also meet the <=1000ppm threshold requirement.
(3) MSL, Peak Temp. - The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature.
(4) There may be additional marking, which relates to the logo, the lot trace code information, or the environmental category on the device.
(5) Multiple Device Markings will be inside parentheses. Only one Device Marking contained in parentheses and separated by a "~" will appear on a device. If a line is indented then it is a continuation
of the previous line and the two combined represent the entire Device Marking for that device.
(6)
Lead finish/Ball material - Orderable Devices may have multiple material finish options. Finish options are separated by a vertical ruled line. Lead finish/Ball material values may wrap to two
lines if the finish value exceeds the maximum column width.
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information
provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and
continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals.
TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release.
In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis.
Addendum-Page 1
PACKAGE OUTLINE
YFF0030
DSBGA - 0.625 mm max height
S
C
A
L
E
4
.
5
0
0
DIE SIZE BALL GRID ARRAY
B
E
A
BUMP A1
CORNER
D
C
0.625 MAX
SEATING PLANE
0.05 C
BALL TYP
0.30
0.12
1.6 TYP
SYMM
F
E
D
C
SYMM
2
TYP
B
A
0.4 TYP
1
2
4
5
3
0.3
30X
0.4 TYP
0.2
0.015
C A B
4219433/A 03/2016
NOTES:
1. All linear dimensions are in millimeters. Any dimensions in parenthesis are for reference only. Dimensioning and tolerancing
per ASME Y14.5M.
2. This drawing is subject to change without notice.
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EXAMPLE BOARD LAYOUT
YFF0030
DSBGA - 0.625 mm max height
DIE SIZE BALL GRID ARRAY
(0.4) TYP
3
30X ( 0.23)
(0.4) TYP
2
4
5
1
A
B
C
SYMM
D
E
F
SYMM
LAND PATTERN EXAMPLE
SCALE:25X
0.05 MAX
0.05 MIN
(
0.23)
(
0.23)
METAL
SOLDER MASK
OPENING
SOLDER MASK
OPENING
METAL UNDER
SOLDER MASK
NON-SOLDER MASK
DEFINED
SOLDER MASK
DEFINED
(PREFERRED)
SOLDER MASK DETAILS
NOT TO SCALE
4219433/A 03/2016
NOTES: (continued)
3. Final dimensions may vary due to manufacturing tolerance considerations and also routing constraints.
For more information, see Texas Instruments literature number SNVA009 (www.ti.com/lit/snva009).
www.ti.com
EXAMPLE STENCIL DESIGN
YFF0030
DSBGA - 0.625 mm max height
DIE SIZE BALL GRID ARRAY
(0.4) TYP
30X ( 0.25)
(R0.05) TYP
1
3
2
4
5
A
B
(0.4)
TYP
METAL
TYP
C
D
E
F
SYMM
SYMM
SOLDER PASTE EXAMPLE
BASED ON 0.1 mm THICK STENCIL
SCALE:30X
4219433/A 03/2016
NOTES: (continued)
4. Laser cutting apertures with trapezoidal walls and rounded corners may offer better paste release.
www.ti.com
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