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BQ76PL536A

ACTIVE

3 to 6 series cell lithium-ion battery monitor and secondary protection for industrial battery packs

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Data sheet

BQ76PL536A

ACTIVE
Data sheet Order now

Product details

Number of series cells (min) 3 Vin (max) (V) 27 Features Cell balancing, LDO output, One-Time Programmable (OTP) memory, Overtemperature protection, Overvoltage protection, Precision ADC, SPI, Undervotlage protection Device type Cell monitor and balancer Number of series cells (max) 6 Operating temperature range (°C) -40 to 85 Rating Catalog Battery overvoltage protection (min) (V) 2 Battery overvoltage protection (max) (V) 5 Communication interface SPI Operating current (typ) (µA) 10500
Number of series cells (min) 3 Vin (max) (V) 27 Features Cell balancing, LDO output, One-Time Programmable (OTP) memory, Overtemperature protection, Overvoltage protection, Precision ADC, SPI, Undervotlage protection Device type Cell monitor and balancer Number of series cells (max) 6 Operating temperature range (°C) -40 to 85 Rating Catalog Battery overvoltage protection (min) (V) 2 Battery overvoltage protection (max) (V) 5 Communication interface SPI Operating current (typ) (µA) 10500
HTQFP (PAP) 64 144 mm² 12 x 12
  • 3-to-6 Series Cell Support, All Chemistries
  • Hot-Pluggable
  • High-Speed Serial Peripheral Interface (SPI) for Data Communications
  • Stackable Vertical Interface
  • Isolation Components not Required Between Devices
  • Industrial Temperature Range –40°C to 85°C
  • High-Accuracy Analog-to-Digital Converter (ADC):
    • ±1 mV Typical Accuracy
    • 14-Bit Resolution, 6-µs Conversion Time
    • Nine ADC Inputs: 6 Cell Voltages, 1 Six-Cell Brick Voltage, 2 Temperatures, 1 General-Purpose Input
    • Dedicated Pins for Synchronizing Measurements
  • Configuration Data Stored in Error Check/Correct (ECC)-One-Time-Programmable (OTP) Registers
  • Built-In Comparators (Secondary Protector) for:
    • Overvoltage and Undervoltage Protection
    • Overtemperature Protection
    • Programmable Thresholds and Delay Times
    • Dedicated Fault Output Signals
  • Cell Balancing Control Outputs With Safety Timeout
    • Balance Current Set by External Components
  • Supply Voltage Range from 6 V to 30 V Continuous and 36-V Peak
  • Low Power:
    • Typical 12-µA Sleep, 45-µA Idle
  • Integrated Precision 5-V, 3-mA LDO
  • 3-to-6 Series Cell Support, All Chemistries
  • Hot-Pluggable
  • High-Speed Serial Peripheral Interface (SPI) for Data Communications
  • Stackable Vertical Interface
  • Isolation Components not Required Between Devices
  • Industrial Temperature Range –40°C to 85°C
  • High-Accuracy Analog-to-Digital Converter (ADC):
    • ±1 mV Typical Accuracy
    • 14-Bit Resolution, 6-µs Conversion Time
    • Nine ADC Inputs: 6 Cell Voltages, 1 Six-Cell Brick Voltage, 2 Temperatures, 1 General-Purpose Input
    • Dedicated Pins for Synchronizing Measurements
  • Configuration Data Stored in Error Check/Correct (ECC)-One-Time-Programmable (OTP) Registers
  • Built-In Comparators (Secondary Protector) for:
    • Overvoltage and Undervoltage Protection
    • Overtemperature Protection
    • Programmable Thresholds and Delay Times
    • Dedicated Fault Output Signals
  • Cell Balancing Control Outputs With Safety Timeout
    • Balance Current Set by External Components
  • Supply Voltage Range from 6 V to 30 V Continuous and 36-V Peak
  • Low Power:
    • Typical 12-µA Sleep, 45-µA Idle
  • Integrated Precision 5-V, 3-mA LDO

The bq76PL536A device is a stackable battery monitor and protector for three-to-six lithium-ion cells in series. The bq76PL536A integrates an analog front end (AFE) along with a precision analog-to-digital converter (ADC), used to precisely measure battery cell voltages. A separate ADC is used to measure temperature.

In addition to temperature measurement, overvoltage and undervoltage are monitored per channel for protection. Non-volatile memory stores the user-programmable protection thresholds and delay times. A FAULT output signals whenever one of these thresholds is exceeded.

Cell stacks of 192 cells can be supported by stacked bq76PL536A devices. A high-speed SPI interface connects all devices.

The bq76PL536A device is a stackable battery monitor and protector for three-to-six lithium-ion cells in series. The bq76PL536A integrates an analog front end (AFE) along with a precision analog-to-digital converter (ADC), used to precisely measure battery cell voltages. A separate ADC is used to measure temperature.

In addition to temperature measurement, overvoltage and undervoltage are monitored per channel for protection. Non-volatile memory stores the user-programmable protection thresholds and delay times. A FAULT output signals whenever one of these thresholds is exceeded.

Cell stacks of 192 cells can be supported by stacked bq76PL536A devices. A high-speed SPI interface connects all devices.
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Technical documentation

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Type Title Date
* Data sheet bq76PL536A 3-to-6 Series Cell Lithium-Ion Battery Monitor and Secondary Protection IC for Applications datasheet (Rev. C) PDF | HTML 19 Oct 2016
Application note Designing EMI/EMC Safe Battery Pack 14 Jun 2016
User guide bq76PL536A and bq76PL536A-Q1 EVM Quick Start Guide (Rev. D) 28 Jul 2015
Application note bq76PL536/536A/536AQ1 Communication Basics (Rev. B) 05 Jul 2011
Application note Multi-Cell Li-Ion Battery Management System Using MSP430F5529 and bq76PL536 16 Dec 2010
Application note Improving Communications With the bq76PL536 11 Aug 2010

Design & development

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Evaluation board

BQ76PL536EVM-3 — Evaluation Module for Lithium-Ion Battery Monitor and Secondary Protection IC

BQ76PL536EVM-3, Evaluation Module for the BQ76PL536A/bq76PL536A-Q1 Lithium-Ion Battery Monitor and Secondary Protection IC. The User’s Guide document covers the initial connection and installation of the Texas Instruments bq76PL536A/bq76PL536A-Q1 Evaluation Module (EVM), supplied in kit form (...)

User guide: PDF
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Support software

BQ76PL536EVM-3-SW — BQ76PL536EVM-3 Software

The BQ76PL536EVM-3 tool interfaces with the bq76PL536EVM-3 evaluation board
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HTQFP (PAP) 64 Ultra Librarian
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