BQ7694203 Series
3-series to 10-series multicell battery monitor and protector
Manufacturer: Texas Instruments
Link to Manufacturer Page: https://www.ti.com/
Catalog
3-series to 10-series multicell battery monitor and protector
| Part | Interface | Function | Supplier Device Package | Package / Case | Operating Temperature [Max] | Operating Temperature [Min] | Fault Protection | Battery Chemistry | Number of Cells [Max] [custom] | Number of Cells [Min] [custom] | Mounting Type |
|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments BQ7694203PFBR | SPI | Multi-Function Controller | 48-TQFP (7x7) | 48-TQFP | 85 °C | -40 °C | Over Current, Over Temperature, Over Voltage, Short Circuit | LiFePO4/Li-ion | 10 | 3 | Surface Mount |
Key Features
• Battery monitoring capability for 3-series to 10-series cellsIntegrated charge pump for high-side NFET protection with optional autonomous recoveryExtensive protection suite including voltage, temperature, current, and internal diagnosticsTwo independent ADCsSupport for simultaneous current and voltage samplingHigh-accuracy coulomb counter with input offset error < 1 µV (typical)High-accuracy cell voltage measurement < 10 mV (typical)Wide-range current applications (±200-mV measurement range across sense resistor)Integrated secondary chemical fuse drive protectionAutonomous or host-controlled cell balancingMultiple power modes (typical battery pack operating range conditions)NORMAL mode: 286 µAMultiple SLEEP mode options: 24 µA to 41 µAMultiple DEEPSLEEP mode options: 9 µA to 10 µASHUTDOWN Mode: 1 µAHigh-voltage tolerance of 85 V on cell connect and select additional pinsTolerant of random cell attach sequence on production lineSupport for temperature sensing using internal sensor and up to nine external thermistorsIntegrated one-time-programmable (OTP) memory programmable by customers on production lineCommunication options include 400-kHz I2C, SPI, and HDQ one-wire interfaceDual programmable LDOs for external system usage48-pin TQFP package (PFB)Battery monitoring capability for 3-series to 10-series cellsIntegrated charge pump for high-side NFET protection with optional autonomous recoveryExtensive protection suite including voltage, temperature, current, and internal diagnosticsTwo independent ADCsSupport for simultaneous current and voltage samplingHigh-accuracy coulomb counter with input offset error < 1 µV (typical)High-accuracy cell voltage measurement < 10 mV (typical)Wide-range current applications (±200-mV measurement range across sense resistor)Integrated secondary chemical fuse drive protectionAutonomous or host-controlled cell balancingMultiple power modes (typical battery pack operating range conditions)NORMAL mode: 286 µAMultiple SLEEP mode options: 24 µA to 41 µAMultiple DEEPSLEEP mode options: 9 µA to 10 µASHUTDOWN Mode: 1 µAHigh-voltage tolerance of 85 V on cell connect and select additional pinsTolerant of random cell attach sequence on production lineSupport for temperature sensing using internal sensor and up to nine external thermistorsIntegrated one-time-programmable (OTP) memory programmable by customers on production lineCommunication options include 400-kHz I2C, SPI, and HDQ one-wire interfaceDual programmable LDOs for external system usage48-pin TQFP package (PFB)
Description
AI
The Texas Instruments BQ76942 is a highly integrated, high accuracy battery monitor and protector for 3-series to 10-series Li-ion, Li-polymer, and LiFePO4battery packs. The device includes a high-accuracy monitoring system, a highly configurable protection subsystem, and support for autonomous or host-controlled cell balancing. Integration includes high-side charge-pump NFET drivers, dual programmable LDOs for external system use, and a host communication peripheral supporting 400-kHz I2C, SPI, and HDQ one-wire standards. The BQ76942 is available in a 48-pin TQFP package.
The Texas Instruments BQ76942 is a highly integrated, high accuracy battery monitor and protector for 3-series to 10-series Li-ion, Li-polymer, and LiFePO4battery packs. The device includes a high-accuracy monitoring system, a highly configurable protection subsystem, and support for autonomous or host-controlled cell balancing. Integration includes high-side charge-pump NFET drivers, dual programmable LDOs for external system use, and a host communication peripheral supporting 400-kHz I2C, SPI, and HDQ one-wire standards. The BQ76942 is available in a 48-pin TQFP package.