LTC4053-4.2_15 Datasheet, PDF (16/16 Pages) Linear Technology – USB Compatible Lithium-Ion Battery Charger with Thermal Regulation

LTC4053-4.2
TYPICAL APPLICATIO S
USB/Wall Adapter Power Li-Ion Battery Charger
5V WALL
ADAPTER
USB
POWER
1k
LTC4053-4.2
9
BAT
2
V_CC
4.7µF
I_BAT
+
1µF
1Ω
Li-Ion
CELL
4
8
TIMER SHDN
SUSPEND
GND NTC PROG
56 7
µC
0.1µF
3.74k
15k
100mA/
500mA
Li-Ion Battery Charger with Reverse Polarity Input Protection
5V WALL
ADAPTER
LTC4053-4.2
I_BAT = 1A
2 _VCC
9
BAT
8
SHDN
4.7µF
4
TIMER
GND
0.1µF 5
1-CELL₊
Li-Ion
BATTERY
PROG ⁷
NTC
1.5k
6
1%
4053 F07
4053 F06
Full Featured Single Cell Li-Ion Charger
4k
1%
4.7µF
R_NTC
10k
V_IN = 5V
1k 1k
1k
8
2
SHDN V_CC
10
ACPR
1 _{CHRG FAULT} 3
6
LTC4053-4.2
NTC
BAT
9
I_BAT = 500mA
4 _TIMER
PROG ^{7 1µF}
GND
0.1µF
5
3k
1%
1Ω
Li-Ion
CELL
4053 F08
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ThinSOT is a trademark of Linear Technology Corporation.
4053fa
16 Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone] ^● FAX: [phone] ^● www.linear.com
LT/LT 0705 REV A • PRINTED IN USA
© LINEAR TECHNOLOGY CORPORATION 2001