Texas Instruments BQ76PL536A-Q1 3 to 6 Series Li-Ion Battery Monitor
Texas Instruments BQ76PL536A-Q1 Cell Li-Ion Battery Monitor and Secondary Protection IC is a stackable three to six-series cell Li-Ion battery pack protector and an analog front end. This incorporates a precision analog-to-digital converter, independent cell voltage and temperature protection, cell balancing, and a precision 5V regulator to power user circuitry. The BQ76PL536A-Q1 integrates a voltage translation and precision analog-to-digital converter system to measure battery cell voltages with high accuracy and speed. This cell Li-Ion battery monitor provides full (secondary) protection for overvoltage, undervoltage, and overtemperature conditions. The Texas Instruments BQ76PL536A-Q1 is designed for use in Electrical Vehicles (EV) and Hybrid Electric Vehicles (HEV) applications.
Features
- 3 to 6 series cell support all chemistries
- Hot-pluggable
- High-speed SPI for data communications
- Stackable vertical interface
- No isolation components required between ICs
- Qualified for automotive applications
- Temperature range -40°C to 105°C
- High-accuracy Analog-to-Digital Converter (ADC)
- ±1mV typical accuracy
- 14-bit resolution, 6µs conversion time
- Nine ADC inputs: six-cell voltages, one six-cell brick voltage, two temperatures, one general-purpose input
- Dedicated pins for synchronizing measurements
- Configuration data stored in ECC-OTP registers
- Built-in comparators (secondary protector) for
- Over- and under-voltage 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
Applications
- Electric and hybrid electric vehicles
- E-Bike and E-scooter
- Uninterruptible Power Systems (UPS)
- Large-format battery systems
Related Development Tool
Texas Instruments bq76PL536EVM-3 Evaluation Module
Designed for the bq76PL536A lithium-ion battery monitor and secondary protection IC.
Simplified System Connection
Publicado: 2012-01-20
| Actualizado: 2025-03-07