FAN5701UMP15X [ONSEMI]
6-LED 驱动其，带 PWM 调光接口;
| 型号： | FAN5701UMP15X |
| 厂家： | 
ONSEMI |
| 描述： | 6-LED 驱动其，带 PWM 调光接口 驱动 |
| 文件： | 总14页 (文件大小：2113K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
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July 2013
FAN5701 — 紧凑型移动平台用的 6-LED 驱动器
产品特性
说明
FAN5701是个高度集成，并基于高效电荷泵的多LED驱动
器。该装置驱动多达六个并联LED，总输出电流为
180m。
.
.
6只LED并联（每只电流高达30mA）
整体封装的载流能力：180mALED默认分为四只（4）和
两只（2）两组，分别用于主次显示的背光，分别带有独
立的PWM调光控制，最高操作可达20kHz
FAN570可用于驱动需要四至六只LED的主显示背光。背光
需要四只以LED时，可连接FAN5701的PWM调光输入，从
而六个LCD提供正常的调光控制。若有主次显示的不同需求
，FAN5701可以分别控制其各自的调光。直板手机需要有
主显屏和键盘背光，FAN51可提供简单紧凑的背光解决
方案。
.
.
.
.
.
.
.
.
.
，PWM频率为100Hz时，调光比大于600:1
效率高达92%
内置带有低压差旁路开关的1.5X电荷泵
输入范围广：2.7V 至 5.5V
调节其内部电流槽，可以为六个LED提供精确电流和亮度匹配
。该器件具很高的效率，无需电感，可以调节电荷泵，使之
工作在1.5x 模式或直通模式。
VOUT 过压和短路保护
过温保护
1.2MHz的开关频率，缩减电容体积
16-焊点 1.61mm × 1.61mm WCSP（0.6mm）
16-引线 3.0mm x 3.0mm UMLP（高0.55m）
可订购的FAN5701其ISET 值可以为30mA、20mA、15mA或
8mA，并且可采用 WLCSP或超薄的UMLP封装。默认ISET值
取决于订购时器件型号（参考订购信息）。
适用范围
.
.
.
.
LCD 背光
键盘背光
手机
便携式媒体播放器
订购信息
器件型号
LED 电流(SET
30mA
)
温度范围
封装
包装
卷带
卷带
卷带
卷带
卷带
卷带
卷带
卷带
FAN5701UC30X
FAN5701UC20X
FAN5701UC15X
FAN5701UC08X
FAN5701UMP30X
FAN5701UMP20X
FAN5701UMP15X
FAN5701UMP08X
-40℃ 至 85℃
-40℃ 至 85℃
-40℃ 至 85℃
-40℃ 至 85℃
-40℃ 至 85℃
-40℃ 至 85℃
-40℃ 至 85℃
-40℃ 至 85℃
WLCSP-16, 0.4mm 间距
WLCSP-16, 0.4mm 间距
WLCSP-16, 0.4mm 间距
WLCSP-16, 0.4mm 间距
UMLP-16, 3.0 x 3.0 x 0.55mm
UMLP-16, 3.0 x 3.0 x 0.55mm
UMLP-16, 3.0 x 3.0 x 0.55mm
UMLP-16, 3.0 x 3.0 x 0.55mm
20mA
15mA
8mA
30mA
20mA
15mA
8mA
© 2009 Fairchild Semiconductor Corporation
www.fairchildsemi.com
FAN5701 • Rev. 1.0.3
框图
VOUT
C1+
COUT
1F
1F
1F
C1–
CHARGE
PUMP
C2+
D1A
D2A
D3A
D4A
D5B
D6B
C2–
VIN
1F
GND
EN
PWMA
PWMB
LOGIC AND
CONTROL
图1. 典型应用
© 2009 Fairchild Semiconductor Corporation
www.fairchildsemi.com
FAN5701 • Rev. 1.0.3
2
WLCSP 引脚布局
A1
B1
C1
D1
A2
A3
B3
C3
D3
A4
B4
C4
D4
A4
B4
C4
D4
A3
B3
C3
D3
A2
B2
C2
D2
A1
B1
C1
D1
B2
C2
D2
焊点俯视图
焊点仰视图
图2. WLCSP-16, 0.4mm 距1.61mm x 1.61mm
引脚说明
引脚号
D2
名称
VIN
说明
输入压连接2.7-5.5 VDC输入电源
接地
B4
GND
D1
VO
荷泵输出电压。连接LED阳极。
1.电荷泵飞跨#1电容。
D3,D4
C3,C4
C1+, C
2–
C2.电荷泵飞跨#2电容。
A1, A2, B1,
B2, C1, C2
D4A,
, D5B
LED输出
启用。该脚为高电平时，启用常规工作模式。该引脚为低电平时，IC被复位，并禁用所有
功能。
A4
EN
B3
A3
PWMA
PWMB
A组PWM调光入
B组PWM调光输入
© 2009 Fairchild Semiconductor Corporation
www.fairchildsemi.com
FAN5701 • Rev. 1.0.3
3
UMLP 引脚布局
5
8
9
4
12
1
16
13
图3. UMLP-16, 0.5mm , 3mm x 3mm（底视图）
引脚说明
引脚号
11
名称
说明
输入电压。连接至2.7 – 5.5VDC输入电源。
接
VIN
6
GND
12
VOUT
电荷泵电压。连接LED阳极。
荷泵飞跨#1电容。
10,9
8,7
C1+, C1–
C–
2.电荷泵飞跨#2容。
1 ,2, 15, D2, D
LED 输入
16, 13, 14
3
启用。该引脚为高电平时，启用常规工作模式。启用。该引脚为高电平时，启用常规工作模式
。
4
EN
5
3
PWMA
PWMB
A组PWM调光输入
B组PWM调光输入
© 2009 Fairchild Semiconductor Corporation
www.fairchildsemi.com
FAN5701 • Rev. 1.0.3
4
绝对最大额定值
如果应力超过绝对最大额定值，设备就会毁损。在推荐的工作条件之上，该设备可能无法正常运行或操作，且不建议让设备在这
些条件下长期工作。此外，过度暴露在高于推荐的工作条件下，会影响器件的可靠性。绝对最大额定值仅是额定应力值。
符号
参数
最小值
–0.3
最大值
6.0
单位
V
VIN, VOUT 引脚
其他引脚(0)
VCC
–0.3
AVIN + 0.3
V
人体模式，JESD22-A114
3
ESD
静电放电防护等级
带电设备模式，JESD22-C101
带电设备模式，JESD22-C101
UMLP16
2
1
kV
WLCSP-16
TJ
TSTG
TL
结温
–40
–65
+150
+150
+260
°C
°C
°C
存储温度
引线焊接温度，10秒
说明：
1. 选取VIN+0.3与6.0V中的较小值。
推荐工作条件
推荐的操作条件表定义了真实设备的工作条荐的作条件，以确保设备的最佳性能达到数据表中的规格。飞兆半导
体建议不要超过推荐工作条件，也不能按照值进行设计。
符号
VIN
参数
最小值
2.7
最大值
5.5
单位
V
电源电压
LED正向电压
环境温度
结温
2
4
V
VLED
TA
–40
–40
+85
+125
°C
°C
TJ
热性能
符号
参数
最小值 典型值 最大值
单位
WLCSP
UMLP
80
49
°C/W
°C/W
ΘJA
结-环境之间热阻（2）
说明：
2. 结-环境之间热阻与具体应用和电路板布局有关。该数据由2s2p四层板测得，符合JESD51-JEDEC标准。特别注意的是，不
要超过给定环境温度TA时的结温TJ(max)
。
© 2009 Fairchild Semiconductor Corporation
www.fairchildsemi.com
FAN5701 • Rev. 1.0.3
5
电气规格
若无其他特定要求，VIN = 2.7V 至5.5V，TA = -40C 至 +85C，且 EN = VIN。典型值为 VIN = 3.6V、TA = 25C、ILED = 20mA且
LED 负极端子 = 0.4V。根据图1设计电路与器件。
符号
参数
工作条件
最小值 典型值 最大值 单位
电源与热保护
1.5x 模式，无 LED
4.4
0.7
1.5
2.55
2.40
150
6
mA
mA
A
IQ
ISD
静态电源电流
1x模式，无LED
停机电源电流
欠压闭锁阈值
EN = 0、VIN = 4.5V、TA=-40C至+85C
4.0
VIN升
VIN降
2.70
VUVLO
V
2.20
VUVHYST
OVP
欠压锁定滞环宽度
过压保护
mV
V
TLIMIT
热关闭
150
20
°C
°C
THYST
热关闭滞环宽度
LED灌电流
ILED
ILED(MAX)
ILED_MATCH
VDTH
绝对电流精度
VCATHODE=0.4V；参IT的选项
ILED= IS
–10%
ISET
30
+10%
3.0
mA
mA
%
最大二极管电流（3）
LED 电流匹配（4）
1x 到 1.5x 增益转换阈值
灌电流余量(4)
DE=0V, LED= ISET
电压降
0.4
100
65
mV
mV
VHR
% ILED(
额定值
)
电荷泵
1.5x 模式
1x 模式
2.4
0.9
1.2
250
Ω
Ω
ROUT
输出电阻
fSW
tSTART
开关频率
启动
0.9
1.5
MHz
s
VOUT = 稳态的90%
PWM 调光
fPWM
PWM率
PWM 占空比
tON_LED = 15µs (Minimum)
20
kHz
%
DPWM
WM = 100Hz
0.15
1.2
100.00
逻辑输入（EN, PWMA, PWMB）
VIH
VIL
输入电压高电平
输入电压低电平
最大输入电压
输入偏置电流
V
V
0.4
5.5
VIMAX
IIN
注意:
1.8
V
A
输入连接到GND 或 VIN
0.01
1.00
3. IC的最大总输出电流为180mA。总输出电流可分为2个组（IDxA = IDxB = 30mA 最大值）。在最大输出电流条件下，需特
别注意输入电压和LED的正向电压，以确保适当的电流调节。参见产品说明书中最大输出电流的章节。
4. 对于器件中的这两组（A组和B组）灌电流，如果以下是确定的：每组中最大灌电流(MAX)、每组中最小灌电流(MIN)、每组
中平均灌电流(AVG). 则对于每一组，定义两个匹配数值，计算如下：(MAX-AVG)/AVG和(AVG-MIN)/AVG。选择二者中较
大的数（最坏情况），作为该组的匹配值。既定部分的匹配值应为两组中匹配度最高的。提供的典型规格就是所有部分的最
大可能匹配基准。
5. 对于每一个Dxx引脚，净空电压指内部汇流槽与该引脚之间的电压。VHRx = VOUT -VLED.如果净空电压不满足要求，LED电流调
节效果会大大折扣。
© 2009 Fairchild Semiconductor Corporation
www.fairchildsemi.com
FAN5701 • Rev. 1.0.3
6
典型特性
VIN = 3.6V、TA = 25C、ILED = 20mA 以及 LED 负极端子 = 0.4V。
图4. LED 电流为 8mA 和 20m时的效率
图ILED=20mA 时6个LED通道的电流匹配
图流变化相对温度的曲线
图7. 停机电流与输入电压的关系
图9. PWM调光、VIN=3.6V、ILEDx=20mA、且EN=1kHz、
占空比为20%
图8. LED电流为20mA时开关频率和温度的关系
© 2009 Fairchild Semiconductor Corporation
www.fairchildsemi.com
FAN5701 • Rev. 1.0.3
7
典型特性(续)
VIN = 3.6V、TA = 25C、ILED = 20mA 以及 LED 负极端子 = 0.4V。
图10. 1x到1.5x模式切换、VIN=3.6V（VCATHODE 斜升）
图11. 1到1.5x模式切换、VIN=3.6V（VCATHODE 斜降）
图12. 1x瞬态响应、VIN=3.6V – 42V,
图13. 1.5x模式下的线路瞬态响应、VIN=2.7V – 3.3V,
ILEDx=20mA
ILED=20mA
图14. 1x到1.5x模式切换时线路瞬态响应、VIN=3.2V –
图15. VIN=3.6V, ILEDx=20mA时带EN软起动
4.1V, ILEDx=20mA
© 2009 Fairchild Semiconductor Corporation
www.fairchildsemi.com
FAN5701 • Rev. 1.0.3
8
电路说明
FAN5701是一个白色LED的驱动系统，基于一个自适应
1.5x/1x电荷泵，能够提供达到180mA的总输出电流。严格
匹配的电流槽能确保各个LED的亮度均匀。LED采用共阳极
配置，在制造过程中设置峰值驱动电流（参见订购信息和
PWM 调光
外部PWM输入（A组和B组）直接调制对应LED通道的输出电流，从
而调整LED亮度。有两个PWM输入，分别单独控制两组LED，如主
显示面板和次面版。也可连接两者组成一个单一输入，对六个
LED输出进行同步调光。
I
SET）。
电荷泵
VOUT的短路保护
电荷泵可工作于1.5x模式，也可工作于1x模式，其中VOUT
FAN5701内置有集成保护电路，当输出电压跌落到2V以下时，
防止设备遭受路危害。如果发生短路，FAN5701将关闭电荷
泵和LED驱动出，但是一个小型旁路开关继续保持导通。该器
件通过监输出压，断是否仍处于短路状态，一旦短路消
失，软动后回到正工作状态。
通过一个旁路开关与VIN相连。正向电压最大（VLED(MAX)
）
的LED不能再维持电流调节之前，该电路工作在1 x模式。
之后，开始切换到1.5x模式。如果最低的有效阴极电压大于
1.8V，电荷泵恢复1x模式。
此外为应对滞环，提供1ms的转换延迟，从而让设备忽略决
定模式转换时短暂的输入电压跌落。
OUT 的过电压保护
如输出电压高于6V，FAN5701将停机，直至该状态消失。电
泵和D驱动器输出关闭。一该状态消失，FAN5701软启
动入正常工作状态。
IC 启用
当EN引脚为低电平时，禁用所有的电路功能。当EN引脚为
高电平时，启用整个芯片。两个PWM的输入都有效。
© 2009 Fairchild Semiconductor Corporation
www.fairchildsemi.com
FAN5701 • Rev. 1.0.3
9
物理尺寸
0.03 C
F
E
A
2X
B
D
0.40
(Ø0.20)
Cu Pad
A1
BALL A1
INDEX AREA
0.40
(Ø0.30) Solder
Mask Opening
0.03 C
2X
RECOMENED LAND PATTERN
(ND PATYPE)
TOP VIEW
0.06 C
0.625
0.547
0.378±0.018
0.208±0.021
E
0.05
C
C
SEATING
PLANE
D
SIDE VIES
NOTES
A. NO JEDEC REGISTRATION APPLIES.
B. DIMSIONS ARE IN MILLIMETERS.
.005
C A B
Ø060±0.02
X
0.40
C. DIMENSIONS AND TOLERANCE
PER ASME Y14.5M, 1994.
D
C
B
A
D. DATUM C IS DEFINED BY THE SPHERICAL
CROWNS OF THE BALLS.
(Y) ±0.0
F
E. PACKAGE NOMINAL HEIGHT IS 586 MICRONS
±39 MICRONS (547-625 MICRONS).
2
3
4
(X) ±0.018
F. FOR DIMENSIONS D, E, X, AND Y SEE
PRODUCT DATASHEET.
BOTTOM VIEW
G. DRAWING FILNAME: MKT-UC016AArev2.
图16. 晶圆级芯片封装（WLCSP）
产品规格尺寸
D
E
X
Y
产品
FAN5701UCxx
1.610mm
1.610mm
0.205mm
0.205mm
封装图纸是作为一项服务，提供给考虑飞兆半导体产品的客户。具体参数可进行改动，且无需做出相应通知。请注意图纸上的版本和/或日期，
并联系飞兆半导体代表核实或获得最新版本。封装规格并不超出飞兆公司全球范围内的条款与条件，尤其指保修，涉及飞兆半导体的全部产品。
即时访问飞兆半导体在线封装网页，可以获得最新的封装图：
HTTP://WWW.FAIRCHILDSEMI.COM/PACKAGING/.
© 2009 Fairchild Semiconductor Corporation
www.fairchildsemi.com
FAN5701 • Rev. 1.0.3
10
物理尺寸（续）
0.10 C
3.00
A
2X
B
3.00
1.75
3.00
1.75 3.00
PIN 1 IDENT
0.10 C
2X
TOP VIEW
16X 0.75
0.50
0.55 MAX
16X 0.30
0.10 C
(0.15)
RECOMMNDED LAND PATTERN
0.08 C
0.05
0.00
SEATING
PLANE
SIDE VIEW
NOTES:
1
1.65
PIN #1 IDENT
A. DESIGN CONFORMS TO JEDEC MO-248.
DIMENSIONS ARE IN MILLIMETERS.
4
C. DIMENSIONS AND TOLERANCES PER
ASME Y14.5M, 1994.
5
13
D. LAND PATTERN RECOMMENDATION FROM
PCB MATRIX IPC LP CALCULATOR (V2009).
1.75
1.65
E. DRAWING FILENAME: MKT-UMLP16Brev1.
8
9
12
0.50
0.42
0.32
16X
0.30
0.20
16X
0.10
0.05
C A B
C
BOTTOM VIEW
图17. UMLP-16尺寸
封装图纸是作为一项服务，提供给考虑飞兆半导体产品的客户。具体参数可进行改动，且无需做出相应通知。请注意图纸上的版本和/或日期，
并联系飞兆半导体代表核实或获得最新版本。请注意图纸上的版本和/或日期，并联系飞兆半导体代表核实或获得最新版本。
即时访问飞兆半导体在线封装网页，可以获得最新的封装图：
HTTP://WWW.FAIRCHILDSEMI.COM/PACKAGING/.
© 2009 Fairchild Semiconductor Corporation
www.fairchildsemi.com
FAN5701 • Rev. 1.0.3
11
© 2009 Fairchild Semiconductor Corporation
www.fairchildsemi.com
FAN5701 • Rev. 1.0.3
12
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