BQ76PL455A-Q1 16-Cell Battery Monitor With Passive Cell Balancing | TIJ.co.jp

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

 

概要

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).

特長

  • 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

機能一覧

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Part number オーダー・オプション Communication interface Features Operating temperature range (C) Package Group Package size: mm2:W x L (PKG)
BQ76PL455A-Q1 ご注文 Differential Daisy Chain
UART    
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     TQFP | 80     80TQFP: 144 mm2: 12 x 12 (TQFP | 80)    
BQ76PL455A ご注文 Differential Daisy Chain
UART    
Cell Balancing
Integrated ADC
Over-temperature (OT)
Over-voltage (OV)
Programmable EEPROM or EPROM
Requires separate MCU
Under-voltage (UV)    
-40 to 85     TQFP | 80     80TQFP: 144 mm2: 12 x 12 (TQFP | 80)    
BQ76PL536A ご注文 SPI     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     HTQFP | 64     64HTQFP: 144 mm2: 12 x 12 (HTQFP | 64)    
BQ76PL536A-Q1 ご注文 SPI     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     HTQFP | 64     64HTQFP: 144 mm2: 12 x 12 (HTQFP | 64)