BQ24083 Datasheet, PDF (5/23 Pages) Texas Instruments – 1-A, SINGLE-CHIP, LI-ION AND LI-POL CHARGER IC

bq24083
www.ti.com........................................................................................................................................................................................................ SLUS848 – MAY 2008
PIN CONFIGURATION
DRC PACKAGE
(TOP VIEW)
V_SS STAT2 STAT1 NC IN
5
4
3
2
1
bq24083
678
ISET VBSEL PG
9 10
CE OUT
TERMINAL
NAME
NO.
CE
9
N.C.
2
IN
1
ISET
6
OUT
10
PG
8
STAT1
3
STAT2
4
VBSEL
7
V_SS
5
Thermal pad
–
TERMINAL FUNCTIONS
I/O
DESCRIPTION
I Charge enable input (active-low)
– No Connection. Leave this pin unconnected. Used for internal test purposes.
I Adapter dc voltage. Connect minimum 0.1-µF capacitor to V_SS.
I
Charge current. External resistor to V_SS sets precharge and fast-charge current, and also the termination
current value. Can be used to monitor the charge current.
O Charge current output. Connect minimum 0.1-µF capacitor to V_SS.
O Power-good status output (open-drain)
O
Charge status outputs (open-drain)
O
I Voltage output selection. (HI = 4.06 V, LO = 4.2 V)
– Ground
There is an internal electrical connection between the exposed thermal pad and the VSS pin of the device.
–
The exposed thermal pad must be connected to the same potential as the VSS pin on the printed-circuit
board. Do not use the thermal pad as the primary ground input for the device. The VSS pin must be
connected to ground at all times.
Copyright © 2008, Texas Instruments Incorporated
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