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Texas Instruments bq2477xEVM-540 배터리 충전 컨트롤러 EVM

Texas Instruments bq2477xEVM-540 배터리 충전 컨트롤러 평가 모듈(EVM)은 bq2477x 장치의 평가 작업을 지원하도록 설계되었습니다. 이 bq2477x 장치는 N-CH MOSFET 선택기와 전류 모니터링 기능이 있는 SMBus 제어식 NVDC-1 충전 컨트롤러입니다. 벅 컨버터의 입력 전압 범위는 6~24V이며, 프로그래밍 가능한 출력은 1~4 셀(bq2477x)입니다. 또한, 이 장치의 충전 출력 전류 범위는 128mA~ 8.128A입니다. 이 평가 모듈에는 EV2400 인터페이스 장치가 포함되어 있지 않으므로 개별적인 bq2477x 평가 모듈을 평가하기 위해서는 해당 인터페이스 장치를 별도로 주문해야 합니다.

특징

  • 호스트 제어 NVDC-1 1S-4S 배터리 충전 컨트롤러: bq24770 SMBus; bq24773 I2C
  • /PROCHOT, IADP, IBAT, PMON, ILIM, REGN, ACOK, ACDET 및 스위칭 노드에 테스트 지점 제공
  • 프로그래밍 가능한 입력 전류 제한, 충전 전압, 충전 전류 및 최소 시스템

필수 장비

  • Power Supplies
    • Power supply #1
      • A power supply capable of supplying 20V at 1A is required
    • Power supply #2
      • A power supply capable of supplying 3.3V at 0.2A is required
  • Load #1
    • A 20V (or above), 10A (or above) electronic load that can operate at a constant current mode
  • Load #2
    • A Kepco BOP36-12M, 0 ≈±36V/0 ≈±12A, bipolar operational power supply or equivalent
  • Meters
  • Six Fluke 75 multimeters (equivalent or better)
    • Four equivalent voltage meters and three equivalent current meters
      • The current meters must be capable of measuring 5A+ current
  • Computer
    • A computer with at least one USB port and a USB cable
    • The EV2400 USB driver and the bq2477x SMB evaluation software must be properly installed
  • Software
    • The bq2477x ICs are all compatible with the EV2300 hardware kit, but it is preferred to use the EV2400
      • There are two setup GUI install programs
        • The bq24770 Evaluation Software-2.0.0.2-Setup.exe (used for all SMB spins) program
        • The bq24773 Evaluation Software-2.0.0.2-Setup.exe program (used just for the I2C bq24773 version)
      • The launch executable file will load the EV2300 software first, followed by the bq2477x software
      • Verify if the GUI is configured for SMB or I2C by looking at the Mode listed above the Texas Instruments logo
      • Now is a good time to copy the two GUI setup files to your hard drive and then run as administrator (right-click on the file and select “Run as administrator”) to install the GUI software before connecting the hardware
  • EV2400 Controller
    • The EV2400 controller is an MSP430F5529 running at 4MHz
      • The controller firmware is stored in flash memory and is executed by the core at power-up
      • The controller communicates with the target device(s) through either: a 2-wire SMBus communication port, a 1-wire HDQ port, or a 2-wire EEPROM I2C port
      • The 2-wire SMBus communication port supports both SMBus and I2C protocols
      • CRC-8 checksum verification for the data packets prevents data corruption over the USB
      • The controller interfaces with the computer through a USB port
      • Device software (GUI) loaded on the computer is used to communicate with the device via the EV2400 controller to write and read registers on the device

Test Setup

기계 도면 - Texas Instruments bq2477xEVM-540 배터리 충전 컨트롤러 EVM
게시일: 2017-02-28 | 갱신일: 2025-03-05