TWL2203 Datasheet, PDF (1/16 Pages) Texas Instruments – POWER SUPPLY MANAGEMENT IC

D Li-Ion Battery Charging Control
D Over-Voltage Shutdown
D Seven Low-Dropout Low-Noise Linear
Voltage Regulators (LDO)
D Voltage Detectors (With Power-Off Delay)
D Four-Channel Analog Multiplexer
TWL2203
POWER SUPPLY MANAGEMENT IC
SLVS185 – FEBRUARY 2000
D Three General-Purpose Operational
Amplifiers
D Ringer Driver
D Power Supply Switch for Accessories
D Low Quiescent Current
D 48-pin TQFP
PFB PACKAGE
(TOP VIEW)
VREF
MUXOUT
MUXIN0
MUX0
MUX1
MUXIN1
MUXIN2
MUXIN3
OP1I–
OP1I+
OP2I–
OP2I+
48 47 46 45 44 43 42 41 40 39 38 37
1
36
2
35
3
34
4
33
5
32
6
31
7
30
8
29
9
28
10
27
11
26
12
25
13 14 15 16 17 18 19 20 21 22 23 24
RINGON
RING
VOUT6
DET_DELAY
VOUT2
V_CC
VSUP
VOUT4
VOUT5
VOUT3
VOUT1
EN3
description
The TWL2203 incorporates a complete power-management system for a cellular telephone that uses
lithium-ion cells. The device includes circuitry to control the gate voltage of two P-channel MOSFETs. The
MOSFETs perform constant-voltage/constant-current charging (CVCC). The TWL2203 has seven low-drop
linear voltage regulators (LDO) to regulate the battery power supply to the different sections of the phone, a
battery voltage monitor, a ringer driver, an analog multiplexer, and three general-purpose operational amplifiers
for signal conditioning.
The TWL2203 is packaged in TI’s 48-pin thin-quad flat package (PFB).
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.
MicroStar is a trademark of 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.
Copyright © 2000, Texas Instruments Incorporated
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