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TWL2203PFB Datasheet

  • TWL2203PFB

  • POWER SUPPLY MANAGEMENT IC

  • 16頁

  • TI

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TWL2203
POWER SUPPLY MANAGEMENT IC
SLVS185 鈥?FEBRUARY 2000
D
D
D
D
D
Li-Ion Battery Charging Control
Over-Voltage Shutdown
Seven Low-Dropout Low-Noise Linear
Voltage Regulators (LDO)
Voltage Detectors (With Power-Off Delay)
Four-Channel Analog Multiplexer
PFB PACKAGE
(TOP VIEW)
D
D
D
D
D
Three General-Purpose Operational
Amplifiers
Ringer Driver
Power Supply Switch for Accessories
Low Quiescent Current
48-pin TQFP
48 47 46 45 44 43 42 41 40 39 38 37
VEXT
IADJ
VG1
ICH+
VOUT7
ICH-
ENOP_MUX
TCOUT
VB
CH
VG2
GNDRING
VREF
MUXOUT
MUXIN0
MUX0
MUX1
MUXIN1
MUXIN2
MUXIN3
OP1I鈥?/div>
OP1I+
OP2I鈥?/div>
OP2I+
1
2
3
4
5
6
7
8
9
10
11
12
13 14 15 16 17 18 19 20 21 22 23 24
36
35
34
33
32
31
30
29
28
27
26
25
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鈥檚 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.
OP3I+
OP3I鈥?/div>
OP1O
OP2O
OP3O
GND
DET2
VCH
DET1
EN4
EN1
EN2
Copyright
漏
2000, Texas Instruments Incorporated
POST OFFICE BOX 655303
鈥?/div>
DALLAS, TEXAS 75265
1

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