5-Cell to 10-Cell Li+ Protector with
Cell Balancing
Pin Description (continued)
PIN
NAME
FUNCTION
29
SNS
Sense Input. Connect to the drains of the charge and discharge FETs. Used as a voltage reference for
detecting short-circuit and discharge overcurrent conditions.
31
CC
Charge Control Output. CC controls the gate of the charge FET. Driven from PKP to VOLCC to turn on and
turn off the charge FET.
32
PKP Pack Positive. The voltage on PKP is used to detect charger-attach and protection-release conditions.
—
EP
Exposed Pad Ground. Connect to the negative terminal of the lowest voltage potential cell.
PKP+
15Ω
VIN
150Ω
150Ω
150Ω
150Ω
1μF
V10
10μF
150kΩ
150Ω
V09
1μF
VCC
V08
0.1μF
60V 82.5kΩ 205kΩ
V07
1kΩ 1kΩ 1kΩ 1kΩ 1kΩ 1kΩ
1A
RSC
V08
0.1μF
SLEEP
1kΩ
10kΩ
RDOC
V07
V06
VCC
V06
SEL0
V05
V05
SEL1
CDOCD
DS2726
V04
SLEEP
V03
V04
CSCD
V02
V01
V03
1μF
V02
6.2V
1μF
V01
V00
PKP-
Figure 2. Typical Application Circuit
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