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UCD3040 UCD3028 UCD3020
SLUS868H – DECEMBER 2009 – REVISED OCTOBER 2013
Digital Power Controllers
Check for...
www.ti.com
UCD3040 UCD3028 UCD3020
SLUS868H – DECEMBER 2009 – REVISED OCTOBER 2013
Digital Power Controllers
Check for Samples: UCD3040, UCD3028, UCD3020
FEATURES
1
23 Digital Control of up to Four
Voltage Feedback Loops
Up to Eight High-Resolution Digital Pulsewidth Modulated (DPWM) Outputs for Supporting a Wide Range of Offline, Isolated and NonIsolated DC-to-DC Topologies
– 250-ps DPWM Pulse-Width Resolution
– 4-ns DPWM Frequency Resolution
– Adjustable Phase Shift Between DPWM Outputs
– Adjustable Dead Band Between Each DPWM Pair
– Active-High or -Low DPWM Polarity
– Up to 2-MHz DPWM Switching Frequency
Dedicated High-Speed Error Analog-to-Digital Converter (EADC) for Each Feedback Loop With Sense Resolution of up to 1 mV
On-Chip 10-Bit D and A Converter (DAC) for Setting EADC Reference
Voltage
Dedicated Hardware Accelerated Digital Compensators or Control Law Accelerators (CLA)
– Three-Pole, Three-Zero Configurable Compensator
– Features Non-Linear Digital Control
– Multiple Programmable Coefficient Registers for Adaptive Digital Compensation
Up to 15-Channel, 12-Bit, 200-ksps, Analog-toDigital Converter (ADC)
Multiple Levels of Fault Protection
– Four High-Speed Analog Comparators
– External Fault Inputs
– 12-Bit ADC
Configurable for
Voltage-Mode, AverageCurrent-Mode, and Resonant-Mode Control
Allows Synchronization of DPWM Waveforms Between Multiple UCD3040, UCD3020 and UCD3028 (UCD30xx) Devices
Adjustable DPWM Pulse Width Enables Support for Cur...