BQ76PL455A-Q1 16-Cell Battery Monitor With Passive Cell Balancing | TI.com

BQ76PL455A-Q1 (ACTIVE) 16-Cell Battery Monitor With Passive Cell Balancing

 

Description

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).

Features

  • 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

Parametrics

Compare all products in Battery monitors & balancers Email Download to Excel
Part number Order Vin (Max) (V) Number of series cells (Min) Number of series cells (Max) Features Operating temperature range (C) Rating Package Group Package size: mm2:W x L (PKG)
BQ76PL455A-Q1 Order now 79.2     6     16     Cell Balancing
Integrated ADC
Over-temperature (OT)
Over-voltage (OV)
Programmable EEPROM or EPROM
Requires separate MCU
Stackable (built-in interface)
Under-voltage (UV)    
-40 to 105     Automotive     TQFP | 80     80TQFP: 144 mm2: 12 x 12 (TQFP | 80)    
BQ76PL455A Order now 79.2     6     16     Cell Balancing
Integrated ADC
Over-temperature (OT)
Over-voltage (OV)
Programmable EEPROM or EPROM
Requires separate MCU
Under-voltage (UV)    
-40 to 85     Catalog     TQFP | 80     80TQFP: 144 mm2: 12 x 12 (TQFP | 80)    
BQ76PL536A Order now 27     3     6     Cell Balancing
Integrated ADC
Multi-cell Support
Open wire detection
Over-temperature (OT)
Over-voltage (OV)
Requires separate MCU
Stackable (built-in interface)
Temperature sense
Under-voltage (UV)    
-40 to 85     Catalog     HTQFP | 64     64HTQFP: 144 mm2: 12 x 12 (HTQFP | 64)    
BQ76PL536A-Q1 Order now 27     3     6     Cell Balancing
Integrated ADC
Multi-cell Support
Open wire detection
Over-temperature (OT)
Over-voltage (OV)
Requires separate MCU
Stackable (built-in interface)
Temperature sense
Under-voltage (UV)    
-40 to 105     Automotive     HTQFP | 64     64HTQFP: 144 mm2: 12 x 12 (HTQFP | 64)    
BQ79606A-Q1 Order now 33     3     6     Cell Balancing
Integrated ADC
Multi-cell Support
Open wire detection
Over-temperature (OT)
Over-voltage (OV)
Requires separate MCU
Stackable (built-in interface)
Temperature sense
Under-temperature (UT)
Under-voltage (UV)    
-40 to 105     Automotive     HTQFP | 48     48HTQFP: 81 mm2: 9 x 9 (HTQFP | 48)