DS2726 データシートの表示（PDF） - Maxim Integrated
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DS2726 Datasheet PDF : 16 Pages
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Rev 2; 1/09
5-Cell to 10-Cell Li+ Protector with
Cell Balancing
General Description
The DS2726 provides full charge and discharge protection
for 5- to 10-cell lithium-ion (Li+) battery packs. The protec-
tion circuit monitors individual cell voltages to detect over-
voltage 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.
Power Tools
Electric Bikes
Home Appliances
Applications
Simplified Typical Application
Circuit
PKP+
VCC
SLEEP
VIN
PKP-
PKP CC
SNS
DC VIN
VCC
V10
V09
SEL0
V08
SEL1
OVS0
OVS1
V07
CBS0
CBS1
V06
CBCFG
SLEEP
DS2726
V05
CSCD
V04
V03
RSC
RDOC
V02
CDOCD
V01
V00
GND
Features
♦ Complete Protection for 5-Cell to 10-Cell Li+ Packs
♦ 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
♦ Overdischarge Current and Short-Circuit Current
Timeout Delay Set with External Capacitors
♦ Low Power Consumption: 60µA (typ)
♦ Low Shutdown Power Consumption: 5µA (typ)
♦ 7mm x 7mm, 32-Pin TQFN Lead-Free Package
Ordering Information
PART
TEMP RANGE
PIN-PACKAGE
DS2726G+
-20°C to +85°C
32 TQFN-EP*
DS2726G+T&R
-20°C to +85°C
32 TQFN-EP*
+Denotes a lead(Pb)-free/RoHS-compliant package.
T&R = Tape and reel.
*EP = Exposed pad.
Pin Configuration appears at end of data sheet.
________________________________________________________________ Maxim Integrated Products 1
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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