BQ76PL455ATPFCRQ1

The BQ76PL455ATPFCRQ1 is a 16-cell pack supervisor with an integrated 16-bit delta-sigma analog-to-digital converter (ADC) for lithium-ion (Li-Ion) and lithium-iron phosphate (LiFePO4) battery pack monitoring. The device provides comprehensive pack monitoring, including voltage, temperature, and self-diagnostics for use in automotive and industrial battery management systems.

Pinout

(Note: The pin configuration below is a general representation. Refer to the specific datasheet for precise details.)

• VC1–VC16: Cell voltage inputs
• AIN1–AIN4: Analog inputs
• CSB: Chip select input for the SPI interface
• SCLK: Serial clock input for the SPI interface
• SDI: Serial data input for the SPI interface
• SDO: Serial data output for the SPI interface
• GPIO1–GPIO4: General-purpose digital inputs/outputs
• TS1–TS4: Negative temperature inputs
• TP1–TP4: Positive temperature inputs
• TSI: Temperature sensor interface input
• VSS: Analog ground
• VSSD: Digital ground
• VDD: Device power supply
• MD: Mode input for device configuration
• LED: LED driver output for fault indication

Circuit Diagram

Include a circuit diagram illustrating the connections and operation of the BQ76PL455ATPFCRQ1 for a visual representation.

Key Features

• High-Precision ADC: Integrated 16-bit delta-sigma ADC for accurate voltage and temperature measurements.
• Cell Balancing Control: Supports active cell balancing to improve battery pack performance and longevity.
• Fault Detection: Comprehensive self-diagnostics and fault detection to ensure safe and reliable operation.
• SPI Interface: Serial Peripheral Interface for communication with microcontrollers and host systems.
• Temperature Monitoring: Provides inputs for monitoring individual cell temperatures to prevent overtemperature conditions.
• Automotive Grade: Designed and qualified for automotive applications, meeting stringent industry standards.

Note: For detailed technical specifications, please refer to the BQ76PL455ATPFCRQ1 datasheet.

Application

• Battery Management Systems: Ideal for use in automotive and industrial battery management systems requiring precise pack monitoring and control.
• Electric Vehicle (EV) Battery Packs: Suited for monitoring and managing large lithium-ion battery packs in electric vehicles and hybrid electric vehicles.
• Energy Storage Systems: Used in stationary energy storage systems to monitor and balance large battery packs for renewable energy integration.

Functionality

The BQ76PL455ATPFCRQ1 is a versatile 16-cell pack supervisor with integrated ADC, providing accurate monitoring of battery pack parameters and enabling active balancing for optimal pack performance.

Usage Guide

• Power Supply: Connect VDD (Pin 14) to the device power supply (2.7V to 5.5V).
• Cell Voltage Inputs: Connect VC1–VC16 to the individual cell voltages in the battery pack.
• Temperature Inputs: Connect TS1–TS4 and TP1–TP4 to the negative and positive temperature inputs, respectively.

Frequently Asked Questions

Q: Is the BQ76PL455ATPFCRQ1 suitable for use in automotive applications?
A: Yes, the BQ76PL455ATPFCRQ1 is designed and qualified for automotive applications, meeting the rigorous requirements of the automotive industry.

Q: What is the maximum operating voltage range supported by the BQ76PL455ATPFCRQ1?
A: The BQ76PL455ATPFCRQ1 can operate with a supply voltage ranging from 2.7V to 5.5V, providing flexibility for various battery system designs.