| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
|
2,020 pcs
|
2020 pcs | On Request | 1 | On Request | On Request | 24+ | On Request | On Request |
| Category | |
| Manufacturer Name | |
| AEC Qualified | |
| Automotive Grade | |
| Battery Chemistry | |
| Fault Protection | |
| Function | |
| Industrial Grade | |
| Interface | |
| Medical Grade | |
| Military Grade | |
| Mounting Type | |
| Number of Cells | |
| Operating Temperature | |
| SVHC Present | |
| Supplier Device Package |
The Texas Instruments bq77910 is a stand-alone, self-contained battery protection and cell-balancing device designed for Li-ion/polymer battery packs. It monitors individual cell voltages from 4 to 10 series cells and provides outputs to drive N-channel MOSFETs for power path interruption.
Key features include internal 50-mA automatic cell balancing, programmable protection thresholds and delay times for cell overvoltage, cell undervoltage, pack discharge overcurrent, pack discharge short circuit, and pack charge short-circuit current. It also includes fixed hardware protection functions such as preset overtemperature protection, open-cell detection, and open/shorted thermistor detection.
The device operates within a supply voltage range of 5.6 V to 50 V and features a low supply current of typically 50 µA in normal mode and 3 µA in shutdown mode. It is compatible with 1-mΩ current-sense resistors and includes an integrated 3.3-V micro-power LDO regulator.
Packaged in a 38-TSSOP, the bq77910 is suitable for surface mounting. Its applications include cordless power tools, electric bikes, UPS systems, and medical equipment.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.75 | $0.75 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The supply voltage range is 5.6 V to 50 V.
It is available in a 38-TSSOP package (38-TFSOP, 0.173" width, 4.40mm).
The operating temperature range is -25°C to 85°C.
It supports Lithium Ion/Polymer.
It can protect 4 to 10 cells.
50 µA typical in normal mode, 3 µA in shutdown mode.
It uses an I²C interface.