SE9020_10 Datasheet, PDF (5/9 Pages) Seaward Electronics Inc. – Standalone Linear Lithium Battery Charger

Typical Operating Characteristics
Vbat Versus Ibat
4.4
4.2
4.0
3.8
3.6
3.4
3.2
3.0
250 200 150 100 50
0
Ibat (mA)
Application Notes:
+
4.75V~6V
_
SE9020C
BAT- BAT-
GND LED1
Vin LED2
R1
BAT-
600
LED1
BAT+
LED2
Figure #1. Flashing 7-Color LED Application. SE9020C also supports 7-color LED applications. The LED2 is
Flashing LED.The Logic of LED’s is shown in the table below.
Detection
Description
Power Supply
Condition
Battery
Condition
LED1
LED2 (7-color)
Disconnected
Connected
ON
Battery Detection
Connected
Disconnected
ON
Battery Unload
Disconnected
ON
OFF
OFF
OFF
Battery Charge
Connected
ON
Connected
Battery Full
ON
Colorful
OFF
Battery Shorted
Shorted
OFF
OFF
Revision 11/2/2010
Preliminary and all contents are subject to change without prior notice
© Seaward Electronics Inc., 2007. • www.seawardinc.com.cn • Page 5