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TI / Battery Management

BQ29700DSER

The BQ2970 is a cost-effective single-cell battery protector for Li-ion and Li-polymer cells, providing FET drive plus overcurrent (charge and discharge), overvoltage, short-circuit discharge and undervoltage protection. It draws about 4 uA typical and operates from -40°C to +85°C, and is commonly used in portable battery packs for cell protection.

New & Original Prototype to volume sourcing
COMPONENT PROFILE
TI BQ29700DSER
Image for reference
Package
WSON-6

Product overview

The BQ2970 is a cost-effective single-cell battery protector for Li-ion and Li-polymer cells, providing FET drive plus overcurrent (charge and discharge), overvoltage, short-circuit discharge and undervoltage protection. It draws about 4 uA typical and operates from -40°C to +85°C, and is commonly used in portable battery packs for cell protection.

Manufacturer
TI
Part number
BQ29700DSER
Category
Battery Management
Package
WSON-6
Packaging
Tape & Reel
Condition
New & Original
Compliance
RoHS Compliant
Lifecycle
Confirm with manufacturer
Lead time / MOQ
Confirm with quotation

Technical parameters

34 parameters

Construction

V– pin(pack–) BAT – 28
+ 0.3 V
Human body model (HBM), per ANSI/ESDA/JEDEC JS–001, all pins
±2000
Discharge
±500
BAT
8
BAT – V
28
VOL Charge FET low output IOL = 30µA, BAT = 3.8V
0.4 V
VOH Charge FET high output IOH = –30µA, BAT = 3.8V
3.7 V
VOL Discharge FET low output IOL = 30µA, BAT = 2V
0.2 V
VOH Discharge FET high output IOH = –30µA, BAT = 3.8V
3.7 V
4.60V in 50mV steps
20 mV
VOVP–Hys
20 mV
VUVP
50 mV
VUVP+Hys 100mV and (BAT – V–) > 1V for release, TA = 25°C
50 mV
Release when BAT – V– > 1V
1 V
Release when VSS – V– ≥ OCC (min)
40 mV
VSCCR Release when BAT – V– ≥ 1V
1 V
tUVPD
20% ms
tOCDD Factory Device Configuration: 8ms, 16ms, 20ms, 48ms
20% ms
tOCCD Factory Device Configuration: 4ms, 6ms, 8ms, 16ms
20% ms
tSCCD Short Circuit detection delay time 250µs (fixed)
50% µs
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Performance

Input voltage: BAT –0.3
12 V
Operating temperature: TFUNC –40
85 °C
Storage temperature, Tstg –55
150 °C
Positive input voltage
8 V
Operating temperature: TAmb
85 °C
Storage temperature
150 °C
Lead temperature (soldering 10s)
300 °C
Thermal resistance junction to ambient, θJA
250 °C/W
RV–D Resistance between V– and VBAT VBAT = 1.8V, V– = 0V
300 kΩ
IV–S Current sink on V– to VSS VBAT = 3.8V
24 µA
detection voltage 200mV in 5mV steps
15 mV
voltage –155mV in 5mV steps
15 mV
VSCC Short Circuit detection voltage TA = 25°C
100 mV

Specifications & documentation

Use the official manufacturer documentation to verify electrical characteristics, package dimensions and operating limits before design approval.

Request confirmation of current stock, date code, packaging, price and delivery terms. Product information does not constitute a binding offer; final specifications are confirmed with your quotation.