Rainbow Electronics MAX1508 - Manual (Page 9)

MAX1508
Li+ Linear Battery Charger with Integrated Pass FET,
Thermal Regulation, and
ACOK
in 3mm x 3mm TDFN
_______________________________________________________________________________________ 9
MAX1508
1 µF
2.8k Ω
IN
CHG
1 µF
4.2V Li+
BATT
EN
GND
SYSTEM
VL
ISET
AC/DC
ADAPTER
VI/O
VI/O
CHARGE-CURRENT MONITOR
LOW: CHARGE, HIGH: FULL OR OFF
ACOK
0.47 µF
Figure 3. µP-Interfaced Li+ Battery Charger
MAX1508
1 µF
15.4k Ω
4.3k Ω
IN
CHG
1 µF
4.2V Li+
BATT
EN
N
GND
SYSTEM
VL ACOK
ISET
USB PORT
VBUS
GND
D+
D-
VI/O
VI/O
HIGH: 435mA, LOW: 95mA
0.47 µF
Figure 4. USB Battery Charger