Geri dön - Nisshinbo

Nisshinbo R5602L Battery Management Analog Front-End IC

Nisshinbo R5602L Battery Management Analog Front-End IC is ideal for 4-cell to 7-cell Li-ion/Li-polymer battery management. The R5602L IC offers high accuracy voltage monitoring and low power consumption in a -40°C to +125°C temperature range. The device features a cell voltage monitor, bidirectional current monitor (based on monitoring the voltage across an external sense resistor), two input pins for temperature monitoring by external NTC thermistors, and a Die temperature monitor. The R5602L Front-End IC also offers overcurrent protection, high-side NMOSFET control, a voltage regulator, cell balancing switches, a switch for open-wire detection, and an I2C/SPI interface. A built-in A/D converter and MCU can read each monitor value as a digital value.

Features

  • High accuracy voltage monitoring
  • Low power consumption
  • Control high-side NMOSFET
  • Cell connection sequence free
  • 5mm2 x 0.8mm, QFN0505-32C package style

Applications

  • Power tools
  • Power storage
  • Cordless/robot cleaners
  • Pedelec
  • E-bikes
  • Drones

Specifications

  • 40V absolute maximum rating
  • Power consumption
    • 150µA typical active consumption
    • 1.0µA maximum standby consumption
  • Built-in 12-bit A/D converter
  • Cell voltage monitor
    • 1.5V to 4.5V input range
    • ±30mV accuracy
  • Current monitor based-on monitoring the voltage across the sense resistor with gains of 2.5x, 10x, and 20x
  • Temperature monitoring by two external NTC thermistors
  • Die temperature monitoring and high-temperature alert
  • Less than 1ms/1monitor maximum monitoring speed
  • Overcurrent protections by detectors
    • Overcharge
    • Over-discharge
    • Sort-circuit
  • 3.4V typical voltage regulator output
  • High-side NMOSFET control
  • Built-in cell balancing switch, cell balancing current depends on the external resistor (up to 20mA)
  • Built-in switch for open-wire detection
  • Cell connection sequence free when CE = low
  • I2C/SPI interface with/without CRC

Block Diagram

Block Diagram - Nisshinbo R5602L Battery Management Analog Front-End IC

Application Diagram

Application Circuit Diagram - Nisshinbo R5602L Battery Management Analog Front-End IC
Yayınlandı: 2021-07-27 | Güncellenmiş: 2022-03-11