19-5482; Rev 3; 8/10
5-Cell to 10-Cell Li+ Protector with
Cell Balancing
Features
The DS2726 provides full charge and discharge protection
for 5- to 10-cell lithium-ion (Li+) battery packs. The protection circuit monitors individual cell voltages to detect overvoltage and undervoltage conditions. Protection against
discharge overcurrent and short-circuit current is provided
with user-selectable thresholds using external resistors.
P-channel protection FETs are employed high side and
driven from on-chip 10V FET drivers. Cell balancing can
be enabled to ensure that all cells are equally charged.
♦ Complete Protection for 5-Cell to 10-Cell Li+ Packs
Applications
♦ Pin Programmable for 5 to 10 Cells
♦ Internal Cell-Balancing Circuit, Shunts Up to 300mA
♦ Pin-Programmable VOV Threshold
♦ Pin-Programmable Cell-Balance Voltage
♦ Overdischarge Current and Short-Circuit Current
Set with External Resistors
Power Tools
♦ Overdischarge Current and Short-Circuit Current
Timeout Delay Set with External Capacitors
Electric Bikes
♦ Low Power Consumption: 60µA (typ)
Home Appliances
♦ Low Shutdown Power Consumption: 5µA (typ)
Simplified Typical Application
Circuit
♦ 7mm x 7mm, 32-Pin TQFN Lead-Free Package
Ordering Information
PART
VCC
SNS
VCC
DC VIN
V10
PIN-PACKAGE
-20°C to +85°C
32 TQFN-EP*
DS2726G+T&R
PKP CC
TEMP RANGE
DS2726G+
PKP+
-20°C to +85°C
32 TQFN-EP*
+Denotes a lead(Pb)-free/RoHS-compliant package.
T&R = Tape and reel.
*EP = Exposed pad.
V09
SEL0
V08
SEL1
OVS0
V07
OVS1
CBS0
CBS1
V06
CBCFG
SLEEP
SLEEP
DS2726
V05
Pin Configuration appears at end of data sheet.
CSCD
V04
VIN
V03
RSC
RDOC
V02
CDOCD
V01
V00
GND
PKP-
________________________________________________________________ Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
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DS2726
General Description
