BQ76PL455A-Q1

ACTIVE

Product details

Number of series cells (Min) 6 Vin (Max) (V) 79.2 Features Cell balancing Number of series cells (Max) 16 Rating Automotive
Number of series cells (Min) 6 Vin (Max) (V) 79.2 Features Cell balancing Number of series cells (Max) 16 Rating Automotive
TQFP (PFC) 80 144 mm² 12 x 12
  • 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
  • Can Help Customers Meet Functional Safety Standard Requirements (For Example, ISO26262)
    • Built-in Self-Tests to Validate Defined Internal Functions
    • Support for Open Wire Detection
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 2: –40°C to 105°C Ambient Operating Temperature Range
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C3
  • 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
  • Can Help Customers Meet Functional Safety Standard Requirements (For Example, ISO26262)
    • Built-in Self-Tests to Validate Defined Internal Functions
    • Support for Open Wire Detection
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 2: –40°C to 105°C Ambient Operating Temperature Range
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C3

The bq76PL455A-Q1 device is an integrated 16-cell battery monitoring and protection device, designed for high-reliability automotive applications. The integrated high-speed, differential, capacitor-isolated communications interface allows up to sixteen bq76PL455A-Q1 devices to communicate with a host via a single high-speed Universal Asynchronous Receiver/Transmitter (UART) interface.

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

The bq76PL455A-Q1 device is an integrated 16-cell battery monitoring and protection device, designed for high-reliability automotive applications. The integrated high-speed, differential, capacitor-isolated communications interface allows up to sixteen bq76PL455A-Q1 devices to communicate with a host via a single high-speed Universal Asynchronous Receiver/Transmitter (UART) interface.

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

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Technical documentation

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Type Title Date
* Data sheet bq76PL455A-Q1 16-Cell EV/HEV Integrated Battery Monitor and Protector datasheet (Rev. C) PDF | HTML 03 Nov 2016
Application note bq76PL455A-Q1 Design Recommendations (Rev. A) 04 Oct 2018
User guide EM1402 Evaluation Module PDF | HTML 01 Feb 2017
Application note bq76PL455A-Q1 Use Case Scenarios 05 Jan 2017
Technical article How active and passive cell balancing works 05 Oct 2016
Application note Designing EMI/EMC Safe Battery Pack 14 Jun 2016
Technical article How batteries may make travel on Mars easier 27 Jan 2016
Technical article From millivolts to miles: How the performance of battery-management ICs affects your car’s performance 10 Dec 2015
Application note Getting Started with the bq76PL455A-Q1 Example Code PDF | HTML 22 Sep 2015
User guide bq76PL455EVM and GUI User's Guide (Rev. A) 28 Jul 2015
Application note bq76PL455A-Q1 Software Design Reference (Rev. A) 11 May 2015

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

BQ76PL455EVM — bq76PL455A-Q1 16-Cell Battery Monitor With Passive Cell Balancing Evaluation Module

The bq76PL455A-Q1 is a highly integrated automotive Li-ion battery management solution that measures the voltages of up to 16 cells connected in series as part of a larger battery stack and reports them via a high speed differential communications link. It provides passive cell balancing outputs (...)

User guide: PDF
Not available on TI.com
Evaluation board

EM1402EVM — 16-Channel Active Cell Balance Evaluation Module

16-Cell EV/HEV High Current Active Balance Solution, using the latest automotive battery management monitor and protector, the bq76PL455A-Q1. It provides high-performance battery management solution for large capacity battery packs, by combining the high integration and accuracy of the (...)
User guide: PDF | HTML
Not available on TI.com
Code example or demo

BQ76PL455A-Q1 Example Code (Rev. A)

SLUC270A.ZIP (4340 KB)
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GUI for evaluation module (EVM)

bq76PL455A-Q1 Evaluation Module GUI (Rev. A)

SLUC584A.ZIP (7551 KB)
lock = Requires export approval (1 minute)
Package Pins Download
TQFP (PFC) 80 View options

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