SUPPLY. TPS9110 Datasheet

TPS9110 Datasheet PDF


Part

TPS9110

Description

CELLULAR SUBSCRIBER TERMINAL POWER SUPPLY

Manufacture

etcTI

Page 23 Pages
Datasheet
Download TPS9110 Datasheet


TPS9110 Datasheet
D Complete Power Supply for Cellular
Handsets
D Three Low-Dropout Regulators (LDOs) with
100-mV Dropout
D Less Than 1 µA Supply Current in
Shutdown Typ
D 250-ms Microprocessor Reset Output
D 10-mA Charge-Pump Driver Configurable
For Inverted or Doubled Output
D Separate Enables for LDOs and Charge
Pump
D 1.185-V Reference
D 28-Pin TSSOP Package
description
TPS9110
CELLULAR SUBSCRIBER TERMINAL
POWER SUPPLY
SLVS164 – AUGUST 1997
PW PACKAGE
(TOP VIEW)
RESET
VCP
GND_CP
CP
EN_CP
GND
EN
ON
VA
CA
PA
GND
EN_A
VCC
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28 VCC
27 PL
26 GND
25 ON
24 CL
23 VL
22 REF
21 OFF
20 VB
19 CB
18 ON_REM
17 GND
16 EN_B
15 PB
The TPS9110 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 have separate enables
allowing circuitry to be powered up or down as necessary to conserve battery power. Regulators VL, VA, and
VB, and the charge pump driver are active as soon as UVLO and OTP are valid and ON is toggled low.
The TPS9110 operates over a free-air temperature range of – 40°C to 85°C and is supplied in a 28-pin TSSOP
package.
AVAILABLE OPTIONS
TA
PACKAGED DEVICE
TSSOP (PW)
CHIP FORM
(Y)
– 40°C to 85°C
TPS9110IPWLE
TPS9110Y
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.
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.
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
Copyright © 1997, Texas Instruments Incorporated
1

TPS9110 Datasheet
TPS9110
CELLULAR SUBSCRIBER TERMINAL
POWER SUPPLY
SLVS164 – AUGUST 1997
functional block diagram
VCC
2
EN
REF
EN_A
EN_B
GND
4
Voltage
Reference
UVLO†
and
OTP‡
ON
ON_REM
UVLO - Undervoltage lockout
OTP - Overtemperature protection
Charge-
Pump
Driver
VCP
CP
GND_CP
EN_CP
LDO
VB
Regulator
CB
B 1
PB
LDO
VA
Regulator
CA
A 1
PA
LDO
VL
Regulator
CL
L 1
PL
Reset
Generator
RESET
OFF
ON
2 POST OFFICE BOX 655303 DALLAS, TEXAS 75265


Features Datasheet pdf D Complete Power Supply for Cellular Han dsets D Three Low-Dropout Regulators (L DOs) with 100-mV Dropout D Less Than 1 µA Supply Current in Shutdown Typ D 25 0-ms Microprocessor Reset Output D 10-m A Charge-Pump Driver Configurable For I nverted or Doubled Output D Separate En ables for LDOs and Charge Pump D 1.185- V Reference D 28-Pin TSSOP Package desc ription TPS9110 CELLULAR SUBSCRIBER TE RMINAL POWER SUPPLY SLVS164 – AUGUST 1997 PW PACKAGE (TOP VIEW) RESET VCP GND_CP CP EN_CP GND EN ON VA CA PA GND EN_A VCC 1 2 3 4 5 6 7 8 9 10 11 12 13 14 28 VCC 27 PL 26 GND 25 ON 24 CL 23 VL 22 REF 21 OFF 20 VB 19 CB 18 ON_REM 17 GND 16 EN_B 15 PB The TPS9110 inco rporates a complete power supply system for a cellular subscriber terminal tha t uses battery packs with three or four NiMH/NiCd cells or a single lithium-io n cell. The device includes three low-d ropout 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, an.
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