MAX1508 Datasheet, PDF (9/11 Pages) Maxim Integrated Products – Linear Li Battery Charger with Integrated Pass FET, Thermal Regulation, and ACOKin 3mm x 3mm TDFN

Linear Li+ Battery Charger with Integrated Pass FET,
Thermal Regulation, and ACOK in 3mm x 3mm TDFN
AC/DC
ADAPTER
1µF
0.47µF
IN
BATT
1µF
MAX1508
CHG _MAX1508Y GND
MAX1508Z
VL
ACOK
4.2V Li+
VI/O
SYSTEM
ISET
2.8kΩ
EN (EN)
CHARGE-CURRENT MONITOR
VI/O
( ) ARE FOR THE MAX1508Y ONLY
Figure 3. µP-Interfaced Li+ Battery Charger
LOW: CHARGE, HIGH: FULL OR OFF
VBUS
GND
USB PORT
1µF
0.47µF
IN
BATT
1µF
MAX1508
CHG _MAX1508Y GND
MAX1508Z
VL
ACOK
4.2V Li+
VI/O
SYSTEM
15.4kΩ
ISET
EN (EN)
4.3kΩ
N
HIGH: 435mA, LOW: 95mA
VI/O
D+
D-
( ) ARE FOR THE MAX1508Y ONLY
Figure 4. USB Battery Charger
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