| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
|
6,810 pcs
|
6810 pcs | On Request | 1 | On Request | On Request | 0919+NOPB | On Request | On Request | |
|
3,903 pcs
|
3903 pcs | On Request | 1 | On Request | On Request | 13+ | On Request | On Request |
| Category | |
| Manufacturer Name | |
| AEC Qualified | |
| Automotive Grade | |
| Battery Chemistry | |
| Fault Protection | |
| Function | |
| Industrial Grade | |
| Medical Grade | |
| Military Grade | |
| Mounting Type | |
| Number of Cells | |
| Operating Temperature | |
| Storage Temperature | |
| Supplier Device Package | |
| Supplier Package | |
| Tape & Reel |
The BQ29412PWRG4 from Texas Instruments is a secondary overvoltage protection integrated circuit specifically designed for 2-, 3-, or 4-cell lithium-ion battery packs. It incorporates a high-accuracy precision overvoltage detection circuit and a programmable delay for detection time.
Key electrical specifications include a typical operating current of 2 µA and a maximum input voltage (Vin) of 25V. The overvoltage protection threshold is set at 4.45V, with a minimum detection at 4.425V and a maximum at 4.475V. This IC is suitable for applications requiring reliable battery protection.
The device operates within a temperature range of -40°C to 110°C. It is available in an 8-TSSOP package, suitable for surface mount applications. The BQ29412PWRG4 is designed for use in battery packs for portable instrumentation, portable equipment, and notebook computers, providing essential second-level overvoltage protection.
This IC functions by comparing each cell voltage to an internal reference. When an overvoltage condition is detected in one cell, a protection sequence is initiated. The device charges an external capacitor via the CD pin, and when this capacitor voltage reaches 1.2V, the OUT pin transitions from low to high, signaling the protection event.
| Qty | Low | High |
|---|---|---|
| 1+ | $1.30 | $1.30 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The BQ29412PWRG4 is supplied in an 8-TSSOP surface mount package.
The operating temperature range is -40°C to 110°C.
It supports Lithium Ion battery chemistry.
It can protect 2 to 4 series cells.
The typical operating current is 2µA.
The typical overvoltage protection threshold is 4.45V, with a minimum of 4.425V and maximum of 4.475V.
The maximum input voltage is 25V.