Texas Instruments UCD3138064x 고집적 디지털 컨트롤러

Texas Instruments UCD3138064x 고집적 디지털 컨트롤러는 단일 칩 솔루션으로서 뛰어난 수준의 집적도와 성능을 제공합니다. UCD3138x는 64kB 프로그램 플래시 메모리 및 SPI나 제2의 I2C 포트와 같은, 통신을 위한 부가 옵션을 제공합니다. 두 개의 32KB 뱅크가 있어서 장치의 펌웨어 이미지를 이중으로 유지할 수 있으므로, 아무 쪽이나 어느 한 쪽의 뱅크로부터 실행할 수 있는 유연성이 있습니다. 또한, 이 특징을 이용하여 프로세서가 새로운 프로그램을 로드하고 실행할 때 전력 공급 중단이 발생하지 않도록 할 수 있습니다.

특징

  • 64kB program flash derivative of UCD3138 family
    • 2x 32kB program flash memory banks
    • Supports execution from one bank while programming another
    • Capability to update firmware without shutting down the power supply
    • Additional communication ports compared to the UCD3138 (1x SPI, 1x I2C)
  • Digital control of up to 3 independent feedback loops
    • Dedicated PID based hardware
    • 2-pole/2-zero configurable with non-linear control
  • Up to 16MHz Error A/D Converter (EADC)
    • Configurable resolution (Minimum 1mV/LSB)
    • Up to 8x oversampling and adaptive trigger positioning
    • Hardware-based averaging (Up to 8x)
    • 14bit effective DAC
  • Up to 8 High-Resolution Digital Pulse Width Modulated (DPWM) Outputs
    • 250ps pulse width resolution
    • 4ns frequency and phase resolution
    • Adjustable phase shift and dead-bands
    • Cycle-by-cycle duty cycle matching
    • Up to 2MHz switching frequency
  • Configurable trailing/leading/triangular modulation
  • Configurable feedback control
    • Voltage, average current, and peak current mode control
    • Constant current and constant power
  • Configurable FM, phase shift modulation, and PWM
  • Fast, automatic, and smooth mode switching
    • Frequency modulation and PWM
    • Phase shift modulation and PWM
  • High efficiency and light load management
    • Burst mode and ideal diode emulation
    • Synchronous rectifier soft on/off
    • Low IC standby power
  • Primary side voltage sensing
  • Flux and phase current balancing for non-peak current mode control applications
  • Current share (average & master/slave)
  • Feature-rich fault protection options
    • 7x Analog / 4x digital comparators
    • Cycle-by-cycle current limiting
    • Programmable blanking time and fault counting
    • External fault inputs
  • Synchronization of DPWM waveforms between multiple UCD3138064x devices
    • Up to 15 channel, 12bit, 267ksps general-purpose ADC with integrated programmable averaging filters, dual sample, and hold
    • Internal temperature sensor
    • Fully programmable high-performance 31.25MHz
  • 32-bit ARM7TDMI-S processor
    • 64kB program flash (2x 32kB Banks)
    • 2kB data flash with ECC
    • 4kB data RAM
    • 8kB boot ROM enables firmware boot-load
  • Communication peripherals
    • 1x I2C/PMBus, 1x I2C (master mode only)
    • 2x UARTs
    • 1x SPI
  • Timer capture with selectable input pins
  • Built-in watchdog: BOD and POR
  • 64-pin QFN, 40-pin QFN, and 48-pin QFN packages
  • Operating temperature: –40°C to +125°C

애플리케이션

  • Power supplies and telecom rectifiers
  • Power factor correction
  • Isolated DC-DC modules

비디오

게시일: 2016-11-02 | 갱신일: 2022-03-11