FAN54300 Datasheet, PDF (6/43 Pages) Fairchild Semiconductor – USB-Compliant, Dual-Power Input, Single-Cell, Li-Ion Switching Charger with USB-OTG Boost Regulator

Pin #
F2
F3
F4
F5
Name
OTG
CSIN
VBAT
STAT
Description
On The Go. When unattended charging is indicated, the level on this pin sets the IBUS current limit. This
pin is also used to put the IC into Boost Mode.
Current-Sense Input. Connect to sense resistor in series with the battery. The IC uses this node to
sense current into the battery. Bypass this pin with a 0.1 F capacitor to PGND.
Battery Voltage. Connect to the positive (+) terminal of the battery pack. Bypass with a 10 F
capacitor to PGND.
Status. Open-drain output indicating charge status. The IC pulls this pin LOW when charging is in
process.
© 2010 Fairchild Semiconductor Corporation
FAN54300 • Rev. 1.0.4
6
www.fairchildsemi.com