BQ76PL536A-Q1 Texas instruments

BQ76PL536A-Q1

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BQ76PL536A-Q1

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Описание

The bq76PL536A-Q1 device is a stackable battery monitor and protector for three-to-six lithium-ion cells in series. The bq76PL536A-Q1 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-Q1 devices. A high-speed SPI interface connects all devices.

Qualified for Automotive Applications
AEC-Q100 Qualified With the Following Results:
- Device Temperature Grade 2: –40°C to +105°C Ambient Operating Temperature Range
- Device HBM Classification Level 2
- Device CDM Classification Level C4B
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
High-Accuracy Analog-to-Digital Converter (ADC):
- ±1 mV Typical Accuracy
- 14-Bit Resolution, 6-µs Conversion Time
- Nine ADC Inputs
- 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 Signals
Cell Balancing Control Outputs With Safety Timeout
- Balance Current Set by External Components
Supply Voltage Range from 7.2 V to 27 V Continuous and 36-V Peak
Low Power:
- Typical 12-µA Sleep, 45-µA Idle
Integrated Precision 5-V, 3-mA LDO

Number of series cells (min)	3
Vin (max) (V)	27
Features	Cell balancing
Device type	Cell monitor and balancer
Number of series cells (max)	6
Operating temperature range (°C)	-40 to 105
Rating	Automotive
Battery overvoltage protection (min) (V)	2
Battery overvoltage protection (max) (V)	5
Communication interface	SPI
Operating current (typ) (µA)	10500