lx2208 Microsemi Corporation, lx2208 Datasheet - Page 6

• Manufacturer Part Number: lx2208
• Description: 2 Amp Three Level Lithium Ion Battery Charger
• Manufacturer: Microsemi Corporation

Copyright © 2007
Rev. 1.0, 2007-04-03
Figure 1 – Typical Application – 2A adapter charge current and 500mA or 100mA maximum USB charge currents. A grounded
spare pin in the USB power cable can be used to sense when the 500mA USB current power source is being used. This
application also uses three LED indicators for Power attached, Battery Charging and Battery Full. This configuration also
implements circuitry to lockout battery charging if the battery is less than 0ºC or greater than 60°C.
Grounded Pin
in USB cable.
Leave open in
Adapter Cable.
TM
Adapter or USB
Power Pin
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: [phone]
USB Hi/Low
Shutdown
Current
Programming
3.57k
10k
A P P L I C A T I O N C I R C U I T S
Analog Mixed Signal Group
1k
Microsemi
0.47u
15.8k
®
IN
CMP
H/L
SD
20%
HCP
LCP
2 Amp Three Level Lithium Ion Battery Charger
LX2208
GND
DC OK
STAT
P
TMP
BAT
RODUCTION
Battery
2.4k
2..4k
2.4k
+
-
D
Status
ATA
Battery
Temperature
Lockout
Sensing
24.9k
S
Charging
Power On
Full
HEET
121k
LX2208
Page 6