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Home > Embedded ICs > Embedded - Microcontroller Unit (MCU) > BQ76PL455APFCR
Texas Instruments

BQ76PL455APFCR

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BQ76PL455APFCR Overview

The bq76PL455A device is an integrated 16-cell battery monitoring and protection device, designed for high-reliability, high-voltage industrial applications. The integrated high-speed, differential, capacitor-isolated communications interface allows up to sixteen bq76PL455A devices to communicate with a host through a single high-speed Universal Asynchronous Receiver/Transmitter (UART) interface.

The bq76PL455A monitors and detects several different fault conditions, including: overvoltage, undervoltage, overtemperature, and communication faults. Six GPIO ports as well as eight analog AUX ADC inputs are included for additional monitoring and programmable functionality. A secondary thermal shutdown is included for further protection.

The bq76PL455A has features that customers may find useful to help them meet functional safety standard requirements. See Safety Manual for bq76PL455A-Q1 (SLUUB67).

Features

  • Monitors and Balances 6-to-16 Cells per Device
  • Highly Accurate Monitoring
    • High Performance 14-bit Analog-to-Digital Converter (ADC) With Internal Reference
    • All Cells Converted in 2.4 ms (Nominal)
    • Eight AUX Inputs for Temperature and Other Sensors with Input Voltage of 0 V to 5 V
    • Internal Precision Reference
  • Integrated Protector With Separate Vref for Overvoltage (OV) and Undervoltage (UV) Comparators and Programmable VCELL Set Points
  • Engineered for High System Robustness
    • Up to 1-Mb/s Stackable Isolated Differential-UART
    • Up to 16 ICs in Daisy-Chain With Twisted Pair
    • Passes Bulk Current Injection (BCI) Test
    • Designed for Robust Hot-Plug Performance
  • Passive Balancing with External n-FETs and Active Balancing with EMB1428Q/EMB1499Q

Specifications

Circuit Diagram

BQ76PL455APFCR

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