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.
- 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 parametersConstruction
- 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
- 6 Submit Document Feedback Copyright ©
- 2024 Tex
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.
Frequently asked questions
Common pre-quotation questions and selection notes to help you verify key parameters and sourcing before requesting a quote.
How do I verify the part is genuine / avoid counterfeit?
Buy only from authorized or franchised channels. On receipt, check: (1) laser-etched markings that solvent will not remove; (2) batch / lot code consistent between label and device; (3) original reel or tube packaging; (4) request traceability documents (CoC, date code). For critical parts, third-party X-ray / decapsulation testing is recommended.
How do I read the markings / date code on a chip?
Most active ICs use a 4-digit date code YYWW (year + week, e.g. 2345 = 2023 week 45). The top mark is manufacturer logo + base part number + lot code. For SMD code lookup, search by "marking code + package" on AllDataSheet / Octopart / LCSC.
What does the package code mean (TO-220, SOT-23, QFP…)?
Package codes describe the physical form factor and pin layout — critical when sourcing, because electrically equivalent parts in different packages will not fit the PCB. Common: TO-220 (3-terminal power), SOT-23 (3-pin small signal), DIP / SOIC (through-hole / SMD ICs), QFP / QFN (MCUs, processors).
What if my original model is discontinued (EOL / NRND)?
Three options: (1) the manufacturer’s recommended replacement; (2) franchised distributor legacy stock; (3) a functionally compatible cross-brand part — provided pinout and key parameters match. Always evaluate on a real board before mass swap.
What is the minimum order quantity (MOQ) and lead time?
We support both sample and volume orders. Minimum order quantity, stock availability and lead time are confirmed per inquiry — tell us your model and quantity and we will quote. Sample quantities for design validation are supported.
Can I get the datasheet and samples?
The full datasheet is linked on this page. For parts without a direct datasheet, we can locate the manufacturer document on request. Sample requests are supported — contact us with your model and quantity.
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.