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Details, datasheet, quote on part number:TPS9110
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Datasheet text preview:
TPS9110 CELLULAR SUBSCRIBER TERMINAL POWER SUPPLY
SLVS164 AUGUST 1997
D D D D D D D D
Complete Power Supply for Cellular Handsets Three Low-Dropout Regulators (LDOs) with 100-mV Dropout Less Than 1 µA Supply Current in Shutdown Typ 250-ms Microprocessor Reset Output 10-mA Charge-Pump Driver Configurable For Inverted or Doubled Output Separate Enables for LDOs and Charge Pump 1.185-V Reference 28-Pin TSSOP Package
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 27 26 25 24 23 22 21 20 19 18 17 16 15
VC C PL GND ON CL VL REF OFF VB CB ON_REM GND EN_B PB
description
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 40°C to 85°C PACKAGED DEVICE TSSOP (PW) TPS9110IPWLE CHIP FORM (Y) 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.
Copyright © 1997, 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.
POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
1
TPS9110 CELLULAR SUBSCRIBER TERMINAL POWER SUPPLY
SLVS164 AUGUST 1997
functional block diagram
VCP VCC 2 ChargePump Driver CP GND_CP EN_CP VB 1 CB PB VA 1 CA PA VL 1 CL PL
EN Voltage Reference LDO Regulator B
REF
UVLO and OTP EN_A
LDO Regulator A
EN_B GND 4
LDO Regulator L
Reset Generator RESET
OFF ON ON_REM UVLO - Undervoltage lockout OTP - Overtemperature protection
ON
2
POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
TPS9110 CELLULAR SUBSCRIBER TERMINAL POWER SUPPLY
SLVS164 AUGUST 1997
TPS9110Y chip information
These chips, when properly assembled, display characteristics similar to those of the TPS9110. 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 25 26 24 23 22 21 20 19 18 17
27
16
CHIP THICKNESS: 15 TYPICAL BONDING PADS: 3.3 × 3.3 MINIMUM TJ max = 150°C
28
15
94 1 2
14
TOLERANCES ARE ± 10%. ALL DIMENSIONS ARE IN MILS.
13
3 4 5 6 7 153 8 9 10 11
12
POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
3
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