TPS9111Y [TI]
SPECIALTY TELECOM CIRCUIT, UUC28, DIE-28;
| 型号： | TPS9111Y |
| 厂家： | 
TEXAS INSTRUMENTS |
| 描述： | SPECIALTY TELECOM CIRCUIT, UUC28, DIE-28 电信 电信集成电路 |
| 文件： | 总23页 (文件大小：380K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
TPS9111
CELLULAR SUBSCRIBER TERMINAL
POWER SUPPLY
SLVS134A – NOVEMBER 1996 – REVISED APRIL 1998
PW PACKAGE
(TOP VIEW)
Complete Power Supply for Cellular
Handsets
1
28
27
26
25
24
23
22
21
20
19
18
17
16
15
Three Low-Dropout Regulators (LDOs) with
100-mV Dropout
RESET
VCP
GND_CP
CP
V
CC
PL
2
3
GND
ON
Less Than 1 µA Supply Current in
Shutdown Typ
4
5
EN_CP
GND
EN
CL
250-ms Microprocessor Reset Output
6
VL
10-mA Charge-Pump Driver Configurable
For Inverted or Doubled Output
7
REF
OFF
VB
8
ON
Separate Enables for LDOs and Charge
Pump
9
VA
10
11
12
13
14
CA
CB
1.185-V Reference
PA
ON_REM
GND
EN_B
PB
GND
EN_A
28-Pin TSSOP Package
V
CC
description
The TPS9111 incorporates a complete power supply system for a cellular subscriber terminal that uses battery
packs with three or four NiMH/NiCd cells or a single lithium-ion cell. The device includes three low-dropout linear
regulators rated for 3.3 V or 3 V at 100 mA each, a charge-pump driver, and logic that includes a 250-ms reset,
on/off control, and processor interface. Regulators A and B and the charge-pump driver are disabled until
regulator L (logic regulator) reaches the rated voltage and RESET is logic high. Regulators A and B and the
charge-pump driver also have separate enables allowing circuitry to be powered up or down as necessary to
conserve battery power.
The TPS9111 operates over a free-air temperature range of –40°C to 85°C and is supplied in a 28-pin TSSOP
package.
AVAILABLE OPTIONS
PACKAGED DEVICE
TSSOP (PW)
CHIP FORM
(Y)
T
A
–40°C to 85°C
TPS9111IPWLE
TPS9111Y
The PW package is only available left-end taped and reeled.
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.
Copyright 1998, Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS9111
CELLULAR SUBSCRIBER TERMINAL
POWER SUPPLY
SLVS134A – NOVEMBER 1996 – REVISED APRIL 1998
functional block diagram
VCP
Charge-
Pump
Driver
CP
2
V
CC
GND_CP
EN_CP
EN
VB
LDO
Regulator
B
CB
PB
Voltage
Reference
REF
1 Ω
1 Ω
1 Ω
†
UVLO
and
OTP
VA
LDO
Regulator
A
‡
CA
PA
EN_A
VL
LDO
Regulator
L
EN_B
GND
CL
PL
4
Reset
Generator
RESET
OFF
ON
ON
ON_REM
†
‡
UVLO - Undervoltage lockout
OTP - Overtemperature protection
2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS9111
CELLULAR SUBSCRIBER TERMINAL
POWER SUPPLY
SLVS134A – NOVEMBER 1996 – REVISED APRIL 1998
TPS9111Y chip information
These chips, when properly assembled, display characteristics similar to those of the TPS9111. Thermal
compression or ultrasonic bonding may be used on the doped aluminum bonding pads. The chips may be
mounted with conductive epoxy or a gold-silicon preform.
BONDING PAD ASSIGNMENTS
23
22
21
20
19
18
25
24
26
17
27
28
16
15
CHIP THICKNESS:
15 TYPICAL
BONDING PADS:
3.3 × 3.3 MINIMUM
T
J
max = 150°C
TOLERANCES ARE ±10%.
94
14
ALL DIMENSIONS
ARE IN MILS.
1
2
13
12
3
8
9
10
11
4
5
6
7
153
3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS9111
CELLULAR SUBSCRIBER TERMINAL
POWER SUPPLY
SLVS134A – NOVEMBER 1996 – REVISED APRIL 1998
Terminal Functions
TERMINAL
I/O
DESCRIPTION
NAME
CA
NO.
10
13
11
9
Regulator A filter capacitor connection
EN_A
PA
I
I
Regulator A enable input. A logic low on EN_A turns on regulator A.
Program A. PA provides programming input for regulator A.
Regulator A output voltage
VA
O
CB
19
16
15
20
24
27
23
Regulator B filter capacitor connection
EN_B
PB
I
I
Regulator B enable input. A logic low on EN_B turns on regulator B.
Program B. PB provides programming input for regulator B.
Regulator B output voltage
VB
O
CL
Regulator L filter capacitor connection
PL
I
Program L. PL provides voltage programming input for regulator L.
Regulator L output voltage
VL
O
GND
6, 12,
Ground. GND terminals should be externally connected to ground to ensure proper functionality.
17, 26
REF
22
O
1.185-V reference output. Decouple REF with an external 0.01-µF to 0.1-µF capacitor to ground.
V
CC
14, 28
Supply voltage input. V
proper functionality.
terminals are not connected internally and must be externally connected to ensure
CC
CP
4
5
O
I
Charge pump driver output
EN_CP
GND_CP
VCP
Charge pump driver enable input. Logic low on EN_CP turns on the charge pump.
Charge pump driver ground
3
2
Charge pump driver supply voltage
EN
7
I/O Enable signal input/output. A logic low on EN enables the TPS9111.
OFF
21
8
I
O
I
Off-signal input. A logic low on OFF turns off the TPS9111.
On-signal output. ON is the logical inversion of ON.
ON
ON
25
18
1
On signal. A logic low on ON enables the TPS9111.
ON_REM
RESET
I
Remote on. A logic high on ON_REM enables the TPS9111.
Microprocessor reset output. RESET is a logic low for 250 ms at power-up.
O
4
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS9111
CELLULAR SUBSCRIBER TERMINAL
POWER SUPPLY
SLVS134A – NOVEMBER 1996 – REVISED APRIL 1998
detailed description
voltage reference
The regulators and reset generator utilize an internal 1.185-V band-gap voltage reference. The reference isalso
buffered and brought out on REF for external use; REF can source a maximum of 2 mA. A 0.01-µF to 0.1-µF
capacitor must be connected between REF and ground.
LDO regulators
The TPS9111 includes three low-dropout regulators, implemented with 1-Ω PMOS series-pass transistors, with
quiescent supply currents of 100 µA. Each of the regulators can supply up to 100 mA of continuous output
current. The 1-Ω PMOS series-pass transistor achieves the dropout voltage of 100 mV at the maximum-rated
output current. Each regulator output voltage can be independently programmed to either 3.3 V or 3 V using
its programming control input PL, PA or PB (Px). A logic low on Px sets the output voltage of the regulator to
3.3 V; a logic high sets it to 3 V.
Each LDO contains a current limit circuit. When the current demand on the regulator exceeds the current limit,
the output voltage drops in proportion to the excess current. When the excess load current is removed, the
output voltage returns to regulation. Exceeding the current limit on VL can disable the TPS9111. If enough
current demand is placed on VL, the output voltage drops below the reset threshold voltage causing RESET
to go low, effectively unlatching the enable.
VL is intended to be the primary supply voltage for the microprocessor and other system logic functions. VA and
VB can power low-noise analog circuits and/or implement system power management. The enable terminals
EN_A and EN_B are utilized to power down circuitry when it is not required. EN_A and EN_B are
TTL-compatible inputs with 10-µA active current-source pullups. A logic low enables the respective regulator
while a logic high pulls the regulator output voltage to ground and reduces the regulator quiescent current to
leakage levels. EN_A and EN_B are not active until RESET is logic high.
Stability of the LDOs is ensured by the addition of compensation terminals CL, CA, and CB, which connect to
the output of the regulator through an internal 1-Ω resistor. This compensation scheme allows for capacitors
with equivalent series resistance (ESR) of up to 15 Ω, eliminating the need for expensive, low-ESR capacitors.
reset generator
RESET is a microprocessor reset signal that goes to logic low at power-up, or whenever VL drops below 2.93 V
(2.6 V for 3-V applications), and remains in that state for 250 ms after VL exceeds the RESET threshold (see
Figure 5). The open-drain output has a 30-µA pullup that eliminates the need for an external pullup resistor and
still allows it to be connected with other open-drain or open-collector signals. RESET is valid for supply voltages
as low as 1.5 V.
ON, OFF, ON, ON_REM and EN functions
The ON input is intended to be the main enable for the TPS9111 and should be connected to ground through
a pushbutton switch. Once the switch is pressed, internal logic pulls EN low. EN is designed to sink 3.2 mA and
canbeused asapulldowntoenableotherfunctionsontheTPS9111orothersystemcircuitry. WhenENispulled
low, the TPS9111 checks to make sure the supply voltage is above the undervoltage lockout (UVLO) threshold
voltage and the die temperature is below 160°C. If both of these conditions are met, the reference circuitry,
regulator L, reset generator, and other support circuitry are enabled. When RESET goes high, the system can
respond with a logic high on OFF, which latches the TPS9111 on, and the ON pushbutton can then be released.
The TPS9111 is disabled in a similar manner. If the ON pushbutton is pressed while the TPS9111 is enabled,
ON responds with a logic high. Once this logic high is detected, the system can respond with a logic low on OFF,
disabling the TPS9111 and reducing supply currents to 1 µA (see Figure 1).
5
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS9111
CELLULAR SUBSCRIBER TERMINAL
POWER SUPPLY
SLVS134A – NOVEMBER 1996 – REVISED APRIL 1998
ON, OFF, ON, ON_REM and EN functions (continued)
ON_REM can be used in the same manner as ON in enabling or disabling the TPS9111. The signal is provided
as a system interface to increase the flexibility of the system. EN can also be used as an input wired-OR open
collector/drain to enable the TPS9111; however, it does not produce a logic signal on ON and, therefore, cannot
be used in the disable sequence described above. It is not recommended that EN be used as the primary enable
signal for the TPS9111.
Enable Sequence
Disable Sequence
ON Must Be Held Low Until
System Responds With A High
Signal At OFF.
ON Is Pressed To Turn Off
The System (Phone).
ON
ON
Once EN Goes Low, The Status Of The
UVLO And The OTP Are Checked.
EN
VL
If The UVLO And OTP Are Valid, VL
And Other Functions Are Enabled.
250 ms
RESET
250 ms After VL Rises Above The Reset
Threshold Voltage, RESET Goes High.
The System Can Now
Respond With A High Signal
At OFF.
Once OFF And RESET Are High,
The Enable Input Is Latched On.
OFF
System Detects The High
Signal At ON And
Responds With A Low
Signal At OFF.
VA
VB
EN_A And EN_B Are both Active And
Low.
Figure 1. Recommended Enable and Disable Sequence
undervoltage lockout (UVLO)
UVLOpreventsoperationofthefunctionsintheTPS9111untilthesupplyvoltageexceedsthethresholdvoltage,
eliminating abnormal power-up conditions internally and externally, and providing an orderly turn-on.
overtemperature shutdown
When the die temperature exceeds 160°C, the thermal protection circuit shuts off the TPS9111. When the die
temperature drops below 150°C, the device can be restarted with the ON input.
charge pump driver
An unregulated inverting or doubler charge pump is implemented by connecting a network of two capacitors
and two diodes to CP. In the inverting configuration, the charge pump can power a liquid-crystal display (LCD)
or provide gate bias for a GaAs power amplifier. A 5-V supply for flash-memory programming or powering the
subscriber identity module (SIM) European applications can be achieved using the doubler configuration and
an external LDO. A logic-low input to the charge-pump enable, EN_CP, turns on the oscillator and driver; a logic
high turns them off. EN_CP input is disabled when RESET is asserted. EN_CP has a 10-µA internal pullup.
6
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS9111
CELLULAR SUBSCRIBER TERMINAL
POWER SUPPLY
SLVS134A – NOVEMBER 1996 – REVISED APRIL 1998
DISSIPATION RATING TABLE 1 – Free-Air Temperature
≤ 25°C DERATING FACTOR = 70°C
T
A
T
A
T = 85°C
A
POWER RATING
PACKAGE
POWER RATING
ABOVE T = 25°C
POWER RATING
A
PW
700 mW
5.6 mW/°C
448 mW
364 mW
DISSIPATION RATING TABLE 2 – Case Temperature
≤ 25°C DERATING FACTOR = 70°C
T
C
T
C
T = 85°C
POWER RATING
C
PACKAGE
POWER RATING
ABOVE T = 25°C
POWER RATING
C
PW
4025 mW
32.2 mW/°C
2576 mW
2093 mW
MAXIMUM CONTINUOUS POWER DISSIPATION
MAXIMUM CONTINUOUS POWER DISSIPATION
vs
vs
FREE-AIR TEMPERATURE
CASE TEMPERATURE
1000
5000
800
600
400
4000
3000
2000
R
= 178°C/W
θJA
R
= 57°C/W
θJC
200
0
1000
0
25
50
75
100
125
150
25
50
75
100
125
150
T
A
– Free-Air Temperature – °C
T
C
– Case Temperature – °C
Figure 3
Figure 2
†‡
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage range, V , VCP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to 12 V
CC
Input voltage range at OFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to 7 V
Input voltage range at PL, PA, PB, EN, EN_A, EN_B,
ON, ON_REM, EN_CP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to V
CC
Continuous total power dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See dissipation rating tables
Peak output current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Internally limited
Operating free-air temperature range, T
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40°C to 85°C
A
Storage temperature range, T
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65°C to 150°C
stg
Lead Temperature 1,6 mm (1/16 inch) from case for 10 seconds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260°C
†
‡
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.
All voltages are with respect to GND.
7
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS9111
CELLULAR SUBSCRIBER TERMINAL
POWER SUPPLY
SLVS134A – NOVEMBER 1996 – REVISED APRIL 1998
recommended operating conditions
MIN
3
MAX
10
UNIT
V
Supply voltage, V , VCP
CC
Input voltage, OFF
0
5
V
Input voltage at PL, PA, PB, EN, EN_A, EN_B, ON, ON_REM, EN_CP
Reference output current
0
V
V
CC
2
0
mA
mA
°C
Continuous regulator output current
Operating free-air temperature
0
100
85
–40
electrical characteristics over recommended operating free-air temperature range,
= VCP = 4 V, Px = 0 V, I = 35 mA, OFF = VL, ON open, ON_REM = 0 V, Cx = 10 µF
V
CC
O(Vx)
(unless otherwise noted)
voltage reference (REF)
†
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
V
T
A
= 25°C,
I
O
= 0
1.185
Output voltage
4 V ≤ V
≤ 10 V,
0 ≤ I ≤ 2 mA
1.161
1.209
V
CC
O
†
Pulse-testing techniques are used to maintain virtual junction temperature as close as possible to ambient temperature; thermal effect must be
taken into account separately.
LDO regulators
†
PARAMETER
TEST CONDITIONS
MIN
3.25
3.2
TYP
MAX
3.35
3.4
UNIT
T
= 25°C
3.3
V
V
V
A
0 ≤ I
≤ 100 mA,
3.5 V ≤ V
≤ 10 V
O(Vx)
CC
= 25°C
A
Output voltage at VA, VB, VL (Vx)
Px = V
,
T
2.95
3
3.05
CC
Px = V
3.2 V ≤ V
0 ≤ I
O(Vx)
≤ 100 mA,
CC,
CC
2.9
3.10
200
V
≤ 10 V
Dropout voltage
I
I
I
= 100 mA,
V
= 3.2 V
100
30
mV
mV
mV
dB
O(Vx)
O(Vx)
O(Vx)
CC
CC
Load regulation
= 0 mA to 100 mA
= 100 mA,
Line regulation
V
= 3.5 V to 10 V
10
Ripple rejection
f = 120 Hz
60
Quiescent current (each regulator)
100
µA
†
Pulse-testing techniques are used to maintain virtual junction temperature as close as possible to ambient temperature; thermal effect must be
taken into account separately.
charge pump driver
PARAMETER
MIN
TYP
100
50%
15
MAX
UNIT
Frequency
50
150
kHz
Duty cycle
Output resistance
30
Ω
8
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS9111
CELLULAR SUBSCRIBER TERMINAL
POWER SUPPLY
SLVS134A – NOVEMBER 1996 – REVISED APRIL 1998
RESET
†
PARAMETER
TEST CONDITIONS
MIN
2.871
2.548
125
TYP
MAX
UNIT
V
Input threshold voltage
Input threshold voltage
VL voltage decreasing
2.93 2.989
2.6 2.652
VL voltage decreasing, PL = V
See Figure 5
V
CC
Timeout delay at RESET
High-level output voltage
250
375
ms
V
I
O
I
O
I
O
= –40 µA
= 1 mA,
2.4
V
= 1.5 V
0.4
0.4
CC
Low-level output voltage
V
= 3.2 mA
Hysteresis
40
mV
†
Pulse-testing techniques are used to maintain virtual junction temperature as close as possible to ambient temperature; thermal effect must be
taken into account separately.
logic inputs at EN_A, EN_B
PARAMETER
MIN
TYP
MAX
UNIT
V
High-level input voltage
Low-level input voltage
Input current
2
0.8
1
V
–20
–10
µA
logic inputs at PL, PA, PB, OFF, ON_REM
PARAMETER
MIN
MAX
UNIT
V
High-level input voltage
Low-level input voltage
Input current
2
0.8
1
V
–1
µA
‡
logic inputs at ON
PARAMETER
MIN
MAX
UNIT
V
High-level input voltage
Low-level input voltage
Input current
2
0.8
1
V
–20
µA
‡
High and low level voltages are dependent on V
(see Figure 17).
CC
‡
logic inputs at EN
PARAMETER
TEST CONDITIONS
MIN
MAX
0.8
UNIT
High-level input voltage
Low-level input voltage
High-level output voltage
Low-level output voltage
2.4
V
V
V
V
I
I
= –50 µA OFF = 0
2.4
O
= 3.2 mA, ON = 0
0.4
O
‡
High and low-level input voltages are dependent on V
(see Figure 18).
CC
logic outputs at ON
PARAMETER
TEST CONDITIONS
MIN
MAX
UNIT
V
High-level output voltage
Low-level output voltage
1-mA source current
1-mA sink current
2.4
0.4
V
overtemperature shutdown
PARAMETER
MIN
TYP
160
10
MAX
UNIT
°C
Temperature threshold
Temperature hysteresis
°C
9
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS9111
CELLULAR SUBSCRIBER TERMINAL
POWER SUPPLY
SLVS134A – NOVEMBER 1996 – REVISED APRIL 1998
undervoltage lockout (UVLO)
PARAMETER
TEST CONDITIONS
increasing
MIN
TYP
MAX
UNIT
V
Threshold voltage
V
1.80
2.52
CC
Hysteresis
50
mV
supply current
PARAMETER
Shutdown
TEST CONDITIONS
OFF = 0 V
MIN
TYP
0.5
MAX
10
UNIT
µA
Operating
EN_CP = VCP
0.7
1
mA
TPS9111Y electrical characteristics, T = 25°C, V
= VCP = 4 V, Px = 0 V, I
= 35 mA,
J
CC
O(Vx)
OFF = VL, ON open, ON_REM = 0 V, Cx 10 µF (unless otherwise noted)
=
voltage reference (REF)
†
PARAMETER
MIN
TYP
MAX
UNIT
TEST CONDITIONS
Output voltage
I
O
= 0
1.185
V
†
Pulse-testing techniques are used to maintain virtual junction temperature as close as possible to ambient temperature; the thermal effect must
be taken into account separately.
LDO regulators
†
PARAMETER
TEST CONDITIONS
MIN
TYP
3
MAX
UNIT
V
Output voltage at VA, VB, VL (Vx)
Dropout voltage
P = V
2.95
3.05
x
CC
I
I
I
= 100 mA,
V
= 3.2 V
CC
100
30
mV
mV
mV
dB
O(Vx)
O(Vx)
O(Vx)
Load regulation
= 0 mA to 100 mA
= 100 mA,
Line regulation
V
CC
= 3.5 V to 10 V
10
Ripple rejection
f = 120 Hz
60
Quiescent current (each regulator)
100
µA
†
Pulse-testing techniques are used to maintain virtual junction temperature as close as possible to ambient temperature; thermal effect must be
taken into account separately.
charge-pump driver
PARAMETER
MIN
TYP
100
50%
15
MAX
UNIT
Frequency
kHz
Duty cycle
Output resistance
Ω
RESET
†
PARAMETER
TEST CONDITIONS
VL voltage decreasing
MIN
TYP
2.93
2.6
MAX
UNIT
Threshold voltage
V
VL voltage decreasing, PL = V
See Figure 5
CC
Delay
250
40
ms
Hysteresis
mV
†
Pulse-testing techniques are used to maintain virtual junction temperature as close as possible to ambient temperature; thermal effect must be
taken into account separately.
10
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS9111
CELLULAR SUBSCRIBER TERMINAL
POWER SUPPLY
SLVS134A – NOVEMBER 1996 – REVISED APRIL 1998
PARAMETER MEASUREMENT INFORMATION
V
CC
V
CP
14
28
2
4
3
22
Voltage
Reference
Charge-Pump
Driver
REF
0.1 µF
20
REF
19
+
Regulator
B
10 µF
5
16
13
15
9
10
+
Regulator
A
10 µF
11
VL
23
24
+
Regulator
L
27
10 µF
Reset
Generator
1
RESET
7
EN
ON
21
25
OFF
8
ON
18
ON_REM
6
12
17
26
Figure 4. Test Circuit
11
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS9111
CELLULAR SUBSCRIBER TERMINAL
POWER SUPPLY
SLVS134A – NOVEMBER 1996 – REVISED APRIL 1998
PARAMETER MEASUREMENT INFORMATION
VL
V
IT+
t
RESET
RESET
Timeout Delay
t
Figure 5. RESET Timing Diagram
5
4
3
V
= 4 V
CC
Px = 0 V
Enable
T
= 25°C
= 0 mA
A
O
2
1
I
Cx = 10 µF
0
4
3
2
1
0
V
O
0
4
8
12
16
20
t – Time – ms
Figure 6. LDO-Regulator Output-Voltage Rise Time and Fall Time
12
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS9111
CELLULAR SUBSCRIBER TERMINAL
POWER SUPPLY
SLVS134A – NOVEMBER 1996 – REVISED APRIL 1998
PARAMETER MEASUREMENT INFORMATION
125
100
75
V
= 4 V
CC
Px = 0 V
= 25°C
T
A
Cx = 10 µF
50
25
0
3.5
3.4
3.3
3.2
3.1
0
0.5
1
1.5
2
t – Time – ms
Figure 7. LDO-Regulator Load Transient, 1 mA to 100 mA Pulsed Load
4.4
4.2
4
3.8
3.6
3.4
3.3
Px = 0 V
3.2
T
= 25°C
= 10 mA
A
I
O
Cx = 10 µF
3.1
0
0.3
0.5
0.8
1
t – Time – ms
Figure 8. LDO-Regulator Line Transient
13
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS9111
CELLULAR SUBSCRIBER TERMINAL
POWER SUPPLY
SLVS134A – NOVEMBER 1996 – REVISED APRIL 1998
TYPICAL CHARACTERISTICS
Table of Graphs
FIGURE
9
I
Quiescent current
Dropout voltage
vs Supply voltage
CC
vs Output current
vs Junction temperature
vs Junction temperature
vs Supply voltage
vs Supply voltage
vs Output current
vs Supply voltage
vs Supply voltage
vs Supply voltage
vs Supply voltage
vs Frequency
10
11
∆V
Change in output voltage
Output voltage, VL
12
O
V
13
O
∆V
Change in output voltage
Change in output voltage
Shutdown current
14
O
O
∆V
15
I
16
CC
Input threshold voltage, ON
Input threshold voltage, EN
Input threshold voltage, ON_REM
Ripple rejection
17
18
19
20
Output spectral noise density
Change in frequency, CP
Output resistance into CP
Output resistance out of CP
vs Frequency
21
vs Junction temperature
vs Supply voltage
vs Supply voltage
22
r
r
23
O
24
O
LDO REGULATORS
DROPOUT VOLTAGE
vs
QUIESENT CURRENT
vs
SUPPLY VOLTAGE
OUTPUT CURRENT
160
140
120
100
80
1
T
A
= 25°C
Px = 0
= 0
I
O
0.9
0.8
0.7
Px = V
CC
85°C
60
25°C
Px = 0
–40°C
40
0.6
0.5
20
0
3
4
5
6
7
8
9
10
0
10 20 30 40 50 60 70 80 90 100
– Output Current – mA
V
CC
– Supply Voltage – V
I
O
Figure 9
Figure 10
14
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS9111
CELLULAR SUBSCRIBER TERMINAL
POWER SUPPLY
SLVS134A – NOVEMBER 1996 – REVISED APRIL 1998
TYPICAL CHARACTERISTICS
LDO REGULATORS
CHANGE IN OUTPUT VOLTAGE
vs
LDO REGULATORS
DROPOUT VOLTAGE
vs
JUNCTION TEMPERATURE
JUNCTION TEMPERATURE
10
8
140
130
120
110
V
= 4 V
CC
I
= 100 mA
O
Px = 0
Px = 0
6
I
O
= 0 mA
4
2
0
100
90
–2
–4
–6
I
O
= 100 mA
80
70
–8
–10
60
–50
–50 –25
0
T
25
50
75
100
125
–25
0
25
50
75
100 125
– Temperature – °C
T
– Temperature – °C
J
J
Figure 11
Figure 12
REGULATOR L
LDO REGULATORS
OUTPUT VOLTAGE
vs
CHANGE IN OUTPUT VOLTAGE
vs
SUPPLY VOLTAGE
SUPPLY VOLTAGE
3.5
3
4
Px = 0
Px = 0 or
Px = V
T
A
= 25°C
3
2
CC
EN = 0
T
I
= 25°C
= 35 mA
A
O
2.5
2
1
0
1.5
1
–1
–2
–3
–4
0.5
0
2
2.2 2.4 2.6 2.8
3
3.2 3.4 3.6 3.8
4
3
4
5
6
7
8
9
10
V
CC
– Supply Voltage – V
V
CC
– Supply Voltage – V
Figure 14
Figure 13
15
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS9111
CELLULAR SUBSCRIBER TERMINAL
POWER SUPPLY
SLVS134A – NOVEMBER 1996 – REVISED APRIL 1998
TYPICAL CHARACTERISTICS
LDO REGULATORS
CHANGE IN OUTPUT VOLTAGE
vs
SHUTDOWN CURRENT
vs
SUPPLY VOLTAGE
SUPPLY CURRENT
4
3.5
3
20
V
= 4 V
OFF = 0
CC
Px = 0 or Px = V
T
A
CC
15
10
= 25°C
2.5
2
5
0
–5
1.5
1
0.5
0
–10
–15
–20
T
= 25°C
A
T
= 85°C
A
T
A
= 40°C
2
3
4
5
6
7
8
9
10
0
10 20 30 40 50 60 70 80 90 100
V
CC
– Supply Voltage – V
I
O
– Output Current – mA
Figure 15
Figure 16
INPUT THRESHOLD VOLTAGE, ON
INPUT THRESHOLD VOLTAGE, EN
vs
vs
SUPPLY VOLTAGE
SUPPLY VOLTAGE
1.8
1.6
1.4
1.2
1
4.9
4.4
OFF = 0 V
EN = Open
ON_REM = 0 V
OFF = 0 V
ON = Open
ON_REM = 0 V
–40°C
3.9
25°C
85°C
3.4
2.9
2.4
1.9
1.4
0.8
2
4
6
8
10
2
3
4
5
6
7
8
9
10
V
CC
– Supply Voltage – V
V
CC
– Supply Voltage – V
Figure 17
Figure 18
16
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS9111
CELLULAR SUBSCRIBER TERMINAL
POWER SUPPLY
SLVS134A – NOVEMBER 1996 – REVISED APRIL 1998
TYPICAL CHARACTERISTICS
LDO REGULATORS
INPUT THRESHOLD VOLTAGE, ON_REM
RIPPLE REJECTION
vs
vs
SUPPLY VOLTAGE
FREQUENCY
4
80
60
EN = Open
ON = Open
OFF = 0 V
3.5
3
2.5
2
1.5
1
40
20
V
T
= 4 V
CC
= 25°C
A
Cx = 10 µF
= 35 mA
I
O
2
3
4
5
6
7
8
9
10
0.01
0.1
1
10
100
1000
V
CC
– Supply Voltage – V
f – Frequency – kHz
Figure 19
Figure 20
REGULATOR L
OUTPUT SPECTRAL NOISE DENSITY
CHANGE IN FREQUENCY, CP
vs
vs
FREQUENCY
JUNCTION TEMPERATURE
100
10
1
4
3
V
= 4 V
VCP = 4 V
CC
Px = 0 V
T
= 25°C
= 35 mA
A
O
I
2
1
0
–1
–2
–3
1
10
100
1000
10000
–50
–25
0
25
50
75
100
125
f – Frequency – Hz
T
J
– Temperature – °C
Figure 21
Figure 22
17
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS9111
CELLULAR SUBSCRIBER TERMINAL
POWER SUPPLY
SLVS134A – NOVEMBER 1996 – REVISED APRIL 1998
TYPICAL CHARACTERISTICS
OUTPUT RESISTANCE, CP
vs
OUTPUT RESISTANCE, CP
vs
SUPPLY VOLTAGE
SUPPLY VOLTAGE
30
25
30
25
20
Current Out of CP
Current Into CP
20
15
10
85°C
25°C
15
85°C
10
5
25°C
–40°C
5
0
–40°C
0
3
4
5
6
7
8
9
10
3
4
5
6
7
8
9
10
V
– Supply Voltage – V
V
– Supply Voltage – V
CC(VCP)
CC(VCP)
Figure 23
Figure 24
THERMAL INFORMATION
Using thermal resistance, junction-to-ambient (R
equation:
), maximum power dissipation can be calculated with the
θJA
T
T
J(max)
R
A
P
D(max)
JA
Where T
is the maximum allowable junction temperature or 150°C.
J(max)
This limit should then be applied to the internal power dissipation of the TPS9111. The equation for calculating
total internal power dissipation of the TPS9111 is:
P
V
V
I
V
I
D(max)
I
X
X
I
Q
x
Many system-dependent issues such as thermal coupling, airflow, added heat sinks and convection surfaces,
andthepresenceofotherheat-generatingcomponentsaffectthepowerdissipationlimitsofagivencomponent.
Three basic approaches for enhancing thermal performance are:
•
•
•
Improving the power dissipation capability of the PWB design
Improving the thermal coupling of the component to the PWB
Introducing airflow in the system
18
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS9111
CELLULAR SUBSCRIBER TERMINAL
POWER SUPPLY
SLVS134A – NOVEMBER 1996 – REVISED APRIL 1998
APPLICATION INFORMATION
BATTERY
1 µF
Voltage
Reference
REF
0.1 µF
Charge Pump
4.7 µF
RF
Section
REF
Regulator
B
3.3 V
7–13 µF
Analog
Section
Regulator
A
3.3 V
7–13 µF
Regulator
L
3.3 V
7–13 µF
Reset
Generator
Processor
and
Logic
RESET
OFF
Section
EN
ON
ON
ON_REM
GND
Figure 25. Typical Application
LDOs (VL, VA, VB) output capacitors
A 10-µF capacitor must be tied to Cx (CL, CA, or CB). The Cx terminal is connected internally to the output of
the LDO through a 1-Ω resistor. The stability of LDOs is dependent on the ESR of the output filter capacitor. Most
LDOs are designed to be stable over a narrow range of ESR with lower limits and upper limits, thus limiting the
type of capacitor that can be used. With the use of the internal 1-Ω resistor, the lower ESR limit of the capacitor
is eliminated, permitting the upper limit to be raised. Therefore, almost any tantalum or ceramic capacitor can
be used, provided the ESR does not exceed 15 Ω over operating temperature range.
19
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS9111
CELLULAR SUBSCRIBER TERMINAL
POWER SUPPLY
SLVS134A – NOVEMBER 1996 – REVISED APRIL 1998
APPLICATION INFORMATION
charge pump design
V
CC
V
CC
VCP
CP
VCP
CP
C1
C1
V
O
V
O
+
C2
C2
+
GND_CP
GND_CP
a. Voltage Inverter
b. Voltage Doubler
Figure 26. Charge-Pump Configurations
The charge-pump terminal can drive either a voltage inverter or a voltage doubler. In either case only two
capacitors and two signal diodes are needed. The output voltage is unregulated and a regulator may be added
if needed.
The charge transfer of C1 is:
(
)
V
O
q
C1
V
CC
This occurs f times a second and the charge transfer per unit time (current) is:
(
)
V
I
f
C1
V
O
CC
Rewriting this equation in the form of I = V/R gives:
V
V
CC
f
O
I
1
C1
1
where
is an equivalent resistor.
f
C1
An equivalent circuit can now be drawn taking the diodes into account.
R
R
R
R
equiv
internal
equiv
internal
–(V
–V
)
2V
–V
CC diode
CC diode
+
C2
C2
+
a. Voltage Inverter
b. Voltage Doubler
Figure 27. Equivalent Circuit for Charge Pump
20
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS9111
CELLULAR SUBSCRIBER TERMINAL
POWER SUPPLY
SLVS134A – NOVEMBER 1996 – REVISED APRIL 1998
APPLICATION INFORMATION
charge-pump design (continued)
The output voltage for the doubler is then:
V
2
V
2
V
I
R
CC
diode
O
total
O
and the output voltage for the inverter is:
(
)
V
V
2
V
I
R
CC
diode
O
total
O
To determine the size of C1 use:
I
C
f
V
where f = 100,000 and ∆V = ripple voltage.
For an output current of 10 mA calculate:
0.01 A
C1
1 F
100 kHz
0.1 V
ripple
Because of losses caused by diode switching and ESR, the calculated capacitance should be multiplied by 1.5
to 2. A 2-µF capacitance should drive a 10-mA voltage doubler or inverter.
21
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS9111
CELLULAR SUBSCRIBER TERMINAL
POWER SUPPLY
SLVS134A – NOVEMBER 1996 – REVISED APRIL 1998
MECHANICAL DATA
PW (R-PDSO-G**)
PLASTIC SMALL-OUTLINE PACKAGE
14 PIN SHOWN
0,30
0,19
0,65
M
0,10
14
8
0,15 NOM
4,50
4,30
6,60
6,20
Gage Plane
0,25
1
7
0°–8°
0,75
A
0,50
Seating Plane
0,10
1,20 MAX
0,05 MIN
PINS **
8
14
16
20
24
28
DIM
3,10
2,90
5,10
4,90
5,10
4,90
6,60
6,40
7,90
7,70
9,80
9,60
A MAX
A MIN
4040064/E 08/96
NOTES: A. All linear dimensions are in millimeters.
B. This drawing is subject to change without notice.
C. Body dimensions do not include mold flash or protrusion not to exceed 0,15.
D. Falls within JEDEC MO-153
22
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
IMPORTANT NOTICE
Texas Instruments (TI) reserves the right to make changes to its products or to discontinue any semiconductor
product or service without notice, and advises its customers to obtain the latest version of relevant information
to verify, before placing orders, that the information being relied on is current and complete.
TI warrants performance of its semiconductor products and related software to the specifications applicable at
the time of sale in accordance with TI’s standard warranty. Testing and other quality control techniques are
utilized to the extent TI deems necessary to support this warranty. Specific testing of all parameters of each
device is not necessarily performed, except those mandated by government requirements.
Certain applications using semiconductor products may involve potential risks of death, personal injury, or
severe property or environmental damage (“Critical Applications”).
TI SEMICONDUCTOR PRODUCTS ARE NOT DESIGNED, INTENDED, AUTHORIZED, OR WARRANTED
TO BE SUITABLE FOR USE IN LIFE-SUPPORT APPLICATIONS, DEVICES OR SYSTEMS OR OTHER
CRITICAL APPLICATIONS.
Inclusion of TI products in such applications is understood to be fully at the risk of the customer. Use of TI
products in such applications requires the written approval of an appropriate TI officer. Questions concerning
potential risk applications should be directed to TI through a local SC sales office.
In order to minimize risks associated with the customer’s applications, adequate design and operating
safeguards should be provided by the customer to minimize inherent or procedural hazards.
TI assumes no liability for applications assistance, customer product design, software performance, or
infringement of patents or services described herein. Nor does TI warrant or represent that any license, either
express or implied, is granted under any patent right, copyright, mask work right, or other intellectual property
right of TI covering or relating to any combination, machine, or process in which such semiconductor products
or services might be or are used.
Copyright 1998, Texas Instruments Incorporated
相关型号：
TPS9125
5 V/3 V SIM SUPPLY AND LEVEL SHIFTERSWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
TI
TPS9125PW
5 V/3 V SIM SUPPLY AND LEVEL SHIFTERSWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
TI
TPS9125PWR
5 V/3 V SIM SUPPLY AND LEVEL SHIFTERSWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
TI
TPS92001
GENERAL PURPOSE LED LIGHTING PWM CONTROLLERWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
TI
TPS92001D
GENERAL PURPOSE LED LIGHTING PWM CONTROLLERWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
TI
TPS92001DGK
GENERAL PURPOSE LED LIGHTING PWM CONTROLLERWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
TI
TPS92001DGKR
GENERAL PURPOSE LED LIGHTING PWM CONTROLLERWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
TI
TPS92001DR
GENERAL PURPOSE LED LIGHTING PWM CONTROLLERWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
TI
TPS92002
GENERAL PURPOSE LED LIGHTING PWM CONTROLLERWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
TI
TPS92002D
GENERAL PURPOSE LED LIGHTING PWM CONTROLLERWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
TI
TPS92002DGK
GENERAL PURPOSE LED LIGHTING PWM CONTROLLERWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
TI
TPS92002DGKR
GENERAL PURPOSE LED LIGHTING PWM CONTROLLERWarning: Undefined variable $rtag in /www/wwwroot/website_ic37/www.icpdf.com/pdf/pdf/index.php on line 217
-
TI
©2020 ICPDF网 联系我们和版权申明