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Texas Instruments UCD3138064x Highly-Integrated Digital Controllers

Texas Instruments UCD3138064x Highly-Integrated Digital Controllers offer superior levels of integration and performance in a single chip solution. The UCD3138x offers 64kB of program flash memory and additional options for communication such as SPI and a second I2C port. Two 32kB banks on the Texas Instruments UCD3138064x enable dual-images of firmware in the device with the flexibility to execute from either of the banks. This feature also allows the processor to load a new program and execute it without interrupting power delivery.

Features

  • 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

Applications

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

Datasheets

Videos

Related Development Tool

Texas Instruments UCD3138064AEVM149 Converter Control Card EVM

Functions as a control card for UCD3138ARGC & UCD3138064ARGC in digital power supply applications.

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Paskelbta: 2016-11-02 | Atnaujinta: 2022-03-11