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| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
|
2,088 pcs
|
2088 pcs | On Request | 1 | On Request | On Request | 12+ | On Request | On Request |
| Category | |
| Manufacturer Name | |
| Battery Chemistry | |
| Cell Balancing Current | |
| Fault Protection | |
| Function | |
| Interface | |
| Mounting Type | |
| Number of Cells | |
| Operating Current (Typical @ Normal Mode) | |
| Operating Current (Typical @ Shutdown Mode, LDO OFF) | |
| Operating Temperature | |
| Overvoltage Protection (Maximum @ max) | |
| Overvoltage Protection (Minimum @ min) | |
| Package Description | |
| SVHC Present | |
| Supplier Device Package | |
| Supplier Package | |
| Supply Voltage | |
| Supply Voltage Range |
The BQ77908ADBTR is a stand-alone multi-cell Li-Ion/Li-Polymer precision protector and cell balancing device from Texas Instruments. It is designed to monitor individual cell voltages in battery packs ranging from 4 to 8 series cells.
Key electrical specifications include a supply voltage range of 5.6V to 40V, a typical operating current of 50µA in normal mode, and 5µA in shutdown mode. The device provides overvoltage protection with a minimum threshold of 4.15V and a maximum of 4.25V. It features an I²C interface for communication and control.
This IC integrates automatic cell balancing with internal 50mA cell circuits, ensuring optimal performance by maintaining balanced cell voltages. The balancing function can be configured for continuous operation, only during charging, or disabled entirely. Advanced safety features include the ability to control split power-path MOSFETs, detect open cell sense lines, and identify open or shorted external temperature sensor faults.
The BQ77908ADBTR is supplied in a 38-TSSOP package suitable for surface mounting. Its operating temperature range is -25°C to 85°C.
| Qty | Low | High |
|---|---|---|
| 1+ | $6.61 | $6.61 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The operating temperature range is -25°C to 85°C.
It can protect 4 to 8 series cells.
The typical operating current in normal mode is 50µA.
The maximum supply voltage is 50V.
The minimum battery overvoltage protection threshold is 4.15V.
It supports Lithium Ion and Lithium Polymer battery chemistries.
The BQ77908ADBTR is supplied in a 38-TSSOP package.