Analog Devices Inc. DC2787A Demo Board for LTC7821 Controllers
Analog Devices Inc. DC2787A Demo Board for LTC7821 Controllers delivers 12V/100A with the input voltage from 40V to 60V. This demo board features the LTC®7821 hybrid step-down synchronous controller with an architecture that merges a soft-switching switched-capacitor topology with a traditional step-down converter. This provides superior efficiency compared to the traditional switching architectures. The external MOSFETs of the DC2787A board switch at a 400kHz fixed frequency and can be programmed from 200kHz to 1.5MHz. This whole set of features makes the DC2787A demo board a highly efficient polyphase hybrid step-down converter.
The powerful 1Ω N-channel MOSFET gate drivers of LTC7821 maximize efficiency and can drive multiple MOSFETs in parallel for higher power applications. This DC2787A demo board provides a cost-effective solution for nonisolated intermediate bus applications in power distribution, datacom, and telecom as well as emerging 48V automotive systems.
Features
- Evaluates a high power density LTC7821 hybrid step-down synchronous converter
- Delivers 12V/100A with an input voltage from 40V to 60V
- Offers a high efficiency/high density and cost-effective solution
- High efficiency:
- 97.6% (typical)
- 98% (peak)
- 400KHz switching frequency
Performance Waveforms
Tool for the Evaluation of
Analog Devices Inc. LTC7821 Hybrid Step-Down Synchronous Controllers
Integrates a switched capacitor circuit with a synchronous step-down controller.
Additional Resources
Publicado: 2019-12-31
| Atualizado: 2022-03-10