BQ76PL536A

Name: BQ76PL536A
Brand: TI
SKU: BQ76PL536A
Price: 3.5 USD

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

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Data sheet

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bq76PL536A 3-to-6 Series Cell Lithium-Ion Battery Monitor and Secondary Protection IC for Applications datasheet (Rev. C)
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BQ76PL536A

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Data sheet

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Product details

Number of series cells (Min)

3

Vin (Max) (V)

27

Features

Cell balancing

Number of series cells (Max)

6

Rating

Catalog

Number of series cells (Min)

3

Vin (Max) (V)

27

Features

Cell balancing

Number of series cells (Max)

6

Rating

Catalog

HTQFP (PAP)

64

100 mm² 10 x 10

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 (...)

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User guide