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3-series to 10-series multicell battery monitor and protector

Availability: 40


Package | PIN: TQFP (PFB) | 48
Temp: I (-40 to 85)
Package qty | Carrier: 250 | SMALL T&R
Qty Price
1-99 $3.91
100-249 $3.51
250-999 $2.51
1,000+ $2.13


  • Battery monitoring capability for 3-series to 10-series cells
  • Integrated charge pump for high-side NFET protection with optional autonomous recovery
  • Extensive protection suite including voltage, temperature, current, and internal diagnostics
  • Two independent ADCs
    • Support for simultaneous current and voltage sampling
    • High-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 protection
  • Autonomous or host-controlled cell balancing
  • Multiple power modes (typical battery pack operating range conditions)
    • NORMAL mode: 250 µA
    • Multiple SLEEP mode options: 20 µA to60 µA
    • Multiple DEEPSLEEP mode options: 10 µA to 14 µA
    • SHUTDOWN Mode: < 2 µA
  • High voltage tolerance of 85 V on cell connect and select additional pins
  • Support for temperature sensing using internal sensor and up to 9 external thermistors
  • Integrated one-time-programmable (OTP) memory programmable by customers on production line
  • Communication options include 400-kHz I2C, SPI, and HDQ one-wire interface
  • Dual programmable LDOs for external system usage
  • 48-pin TQFP package (PFB)

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Texas Instruments  PBQ76942PFBT

The Texas Instruments BQ76942 is a highly integrated, high accuracy battery monitor andprotector for 3-series to 10-series Li-Ion, Li-Polymer, and LiFePO4 battery packs. The deviceincludes a high accuracy monitoring system, a highly configurable protection subsystem, and supportfor autonomous or host controlled cell balancing. Integration includes high-side charge-pump NFETdrivers, dual programmable LDOs for external system use, and a host communication peripheralsupporting 400-kHz I2C, SPI, and HDQ one-wire standards. The BQ76942 isavailable in a 48-pin TQFP package.