UCD3138 Digital Power Factor Correction Pre-regulator Evaluation Module Status: ACTIVE
UCD3138PFCEVM-026
Description
The Texas Instruments UCD3138PFCEVM-026 evaluation module (EVM) is a digitally controlled single phase PFC pre-regulator based on the UCD3138 programmable digital power controller. The EVM accepts universal ac line input from 90Vac to 264Vac, 47Hz to 63Hz. The nominal output voltage is 390VDC. Output full load power is 360W, with extremely high power factor over 0.999 and low THD below 5% for most operating conditions. The protection features of the EVM include brown-out, output over-voltage, and power-on surge current limit. The EVM can be reconfigured into a dual-phase interleaved PFC or bridge-less PFC topologies with hardware and firmware updates. The EVM can be also reprogrammed with custom firmware, allowing users to add functions suited to their needs.
The EVM is supplied with a UCD3138CC64EVM-030 Control Card. This card is pre-programmed with single-phase PFC firmware developed by Texas Instruments. The EVM also includes a USB-TO-GPIO Interface Adapter to download firmware and program the UCD3138 controller in the EVM.
Features
- Multi-Nested Loop Isolated Digital Controller
- Current, Voltage, & Resonant Mode Control
- Input Voltage Feed-forward
- Multiple Light Load Efficiency Modes
- 8 High Resolution DPWM Outputs (250ps) / Trailing or Triangular Modulation
- 32bit, 32MHz ARM 7
- On-Chip Program & Data Flash, RAM, and ROM
- 7 - 50ns Analog Comparators w/ Cycle-by-Cycle Current Limit
- Multi Channel 12-bit 500ksps GP ADC
- On-chip (BOD / POR)
- Single Supply Operation (3.3V)
- On-Chip Reference + Oscillator
- 2 UART’s + Programmable PMBus Interface
- 2MHz Max Switching
- 4ns Frequency Resolution
- Enhanced 2 pole, 2 zero Compensator
- Integrated Copper Trace Current Sensing
- External Interrupt + Fault Input & Output
- Fan Control & Or-ing Control
