| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
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1,781 pcs
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1781 pcs | On Request | 1 | On Request | On Request | 10+ | On Request | On Request |
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| Battery Chemistry | |
| Fault Protection | |
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The BQ29412PWR from Texas Instruments is a secondary overvoltage protection integrated circuit specifically designed for 2-, 3-, or 4-cell lithium-ion battery packs. It features a high-accuracy precision overvoltage detection circuit with a nominal threshold of 4.45V, a minimum of 4.425V, and a maximum of 4.475V. The device operates with a typical current consumption of just 2 µA, making it suitable for low-power applications. Its operating temperature range spans from -40°C to 110°C.
This IC incorporates a programmable delay circuit for overvoltage detection time, providing flexibility in system design. The function involves comparing each cell voltage to an internal reference. Upon detecting an overvoltage condition in any cell, a protection sequence is initiated. The BQ29412PWR is available in an 8-TSSOP package and is designed for surface mount applications.
Key applications include 2nd-level overvoltage protection in Li-Ion battery packs for portable instrumentation, portable equipment, and notebook computers. Its stable operation during pulse charge conditions and high power supply ripple rejection further enhance its utility in demanding battery management systems.
| Qty | Low | High |
|---|---|---|
| 1+ | $1.13 | $1.13 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The overvoltage protection threshold is nominally 4.45V, with a minimum of 4.425V and a maximum of 4.475V.
The typical operating current is 2 µA.
The operating temperature range is -40°C to 110°C.
It can protect 2 to 4 cells in series.
This IC is designed for Lithium Ion battery chemistry.
The BQ29412PWR is supplied in an 8-TSSOP package.