SE9020C Datasheet, PDF (6/8 Pages) Seaward Electronics Inc. – Standalone Linear Lithium Battery Charger

Application Notes:
+
4.75V~6V
_
SE9020D
1
6
2
5
3
4
SOT-23-6
LED1
LED2
BAT-
BAT+
Figure #6. Flashing 2-LED Application. The LED’s are connected between Pin1 and Pin6 to Power Supply. The
logic of LED’s operations is shown in the table below.
Detection
Description
Battery Detection
Battery Unload
Battery Charge
Battery Full
Battery Shorted
Power Supply
Condition
Disconnected
Connected
Connected
Battery
Condition
Connected
Disconnected
Disconnected
Connected
Shorted
LED1
Bright
Bright
Bright
Bright
Bright
Dark
LED2
Dark
Dark
Dark
Flash
Bright
Dark
Revision 2/16/2009
Preliminary and all contents are subject to change without prior notice
© Seaward Electronics Inc., 2007. • www.seawardinc.com.cn • Page 6