3 to 6 series cell lithium-ion battery monitor and secondary protection for industrial battery packs
Product details
Parameters
Package | Pins | Size
Features
- 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
Description
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.
Technical documentation
Type | Title | Date | |
---|---|---|---|
* | Datasheet | bq76PL536A 3-to-6 Series Cell Lithium-Ion Battery Monitor and Secondary Protection IC for Applications datasheet (Rev. C) | Oct. 19, 2016 |
Technical articles | How to stack battery monitors for high-cell-count industrial applications | Feb. 11, 2021 | |
Application note | Designing EMI/EMC Safe Battery Pack | Jun. 14, 2016 | |
User guide | bq76PL536A and bq76PL536A-Q1 EVM Quick Start Guide (Rev. D) | Jul. 28, 2015 | |
Technical articles | The 2014 TI in It holiday gift guide | Dec. 04, 2014 | |
Technical articles | VIDEO: Improved battery interface module for an electric racing motorcycle wins 2014 TI Innovation Challenge | Aug. 05, 2014 | |
Application note | bq76PL536/536A/536AQ1 Communication Basics (Rev. B) | Jul. 05, 2011 | |
Application note | Multi-Cell Li-Ion Battery Management System Using MSP430F5529 and bq76PL536 | Dec. 16, 2010 | |
Application note | Improving Communications With the bq76PL536 | Aug. 11, 2010 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
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 (...)
Software development
Features
- Monitor voltage and temperature readings from EVM
- Graphically plot monitored data
- Modify safety setting for your cell selection
- Send commands to balance cells
CAD/CAE symbols
Package | Pins | Download |
---|---|---|
HTQFP (PAP) | 64 | View options |
Ordering & quality
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- Ongoing reliability monitoring
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