SMB239
PRODUCTION PACKAGE AND PIN DESCRIPTIONS
Pin/Ball
Number
A1
Pin Name
Pin Type
Pin Description
BATT
Input
Battery Voltage Sense – Connect directly to positive terminal of battery
and bypass with a 4.7uF or greater capacitor.
Ground – Connect to isolated PCB ground.
Status Indicator.
B1
C1
D1
GND
STAT
IN
Ground
Output
Input
Voltage Input (+4.35V to +6.5V) – Bypass with a 4.7uF or greater
capacitor.
A2
B2
C2
D2
THERM
SDA
Input
Battery Thermistor Sense.
Input/Output I2C Bus Data.
SCL
Input
I2C Bus Clock.
OUT
Output
Charge Current Output.
A1
A2
B2
SMB239
B1
lead-free CSP-8
C1
C2
1.3mm x 2.1mm
D1
D2
0.5mm pitch
Bottom View
(Balls facing up)
Summit Microelectronics, Inc
2129 3.0 2/23/2009
4
SUMMIT [ SUMMIT MICROELECTRONICS, INC. ]
