●The bq76PL455A-Q1 device is an integrated 16-cell battery monitoring and protection device, designed for high-reliability automotive applications. The integrated high-speed, differential, capacitor-isolated communications interface allows up to sixteen bq76PL455A-Q1 devices to communicate with a host via a single high-speed Universal Asynchronous Receiver/Transmitter (UART) interface.
●The bq76PL455A-Q1 monitors and detects several different fault conditions, including: overvoltage, undervoltage, overtemperature, and communication faults. Six GPIO ports as well as eight analog AUX ADC inputs are included for additional monitoring and programmable functionality. A secondary thermal shutdown is included for further protection.
●The bq76PL455A-Q1 has features that customers may find useful to help them meet functional safety standard requirements. See _Safety Manual for bq76PL455A-Q1_ (SLUUB67).
● Monitors and Balances 6-to-16 Cells per Device
● Highly Accurate Monitoring
● High Performance 14-bit Analog-to-Digital Converter (ADC) With Internal Reference
● All Cells Converted in 2.4 ms (Nominal)
● Eight AUX Inputs for Temperature and Other Sensors with Input Voltage of 0 V to 5 V
● Internal Precision Reference
● Integrated Protector With Separate Vref for Overvoltage (OV) and Undervoltage (UV) Comparators and Programmable VCELL Set Points
● Engineered for High System Robustness
● Up to 1-Mb/s Stackable Isolated Differential-UART
● Up to 16 ICs in Daisy-Chain With Twisted Pair
● Passes Bulk Current Injection (BCI) Test
● Designed for Robust Hot-Plug Performance
● Passive Balancing with External n-FETs and Active Balancing with EMB1428Q/EMB1499Q
● Can Help Customers Meet Functional Safety Standard Requirements (For Example, ISO26262)
● Built-in Self-Tests to Validate Defined Internal Functions
● Support for Open Wire Detection
● AEC-Q100 Qualified With the Following Results:
● Device Temperature Grade 2: –40°C to 105°C Ambient Operating Temperature Range
● Device HBM ESD Classification Level 2
● Device CDM ESD Classification Level C3
