UCC2891EVM-520
適用於 UCC2891 電流模式主動鉗位 PWM 控制器的評估模組
UCC2891EVM-520
概覽
The UCC2891EVM evaluation module (EVM) is a forward converter providing a 3.3V regulated output at 30A of load current, operating from a 48V input. The EVM operates over the full 36V to 75V telecom input range, and is able to fully regulate down to zero load current. The module uses the UCC2891 Current Mode Active Clamp PWM Controller for effectively demonstrating the active clamp transformer reset technique. Combined with synchronous rectification, this EVM is set up to operate at 250kHz and exhibits a peak efficiency of just over 92%, with a full load efficiency of 89%.
特點
- Low Output Jitter
- Soft-Stop Shutdown of MAIN and AUX
- Ideal for Active Clamp/Reset Forward, Flyback Converters
- Provides Complementary Auxiliary Driver with Programmable Deadtime (Turn-On Delay) between AUX and MAIN Switches
- Peak Current-Mode Control with Cycle-by-Cycle Current Limiting
- 110-V Input Startup Regulator
- TrueDrive™ 2-A Sink, 2-A Source Outputs
- Accurate Line UV and Line OV Threshold
- Programmable Slope Compensation
- 1.0-MHz Synchronizable Oscillator
- Precise Programmable Maximum Duty Cycle
- Programmable Soft Start
AC/DC 和 DC/DC 控制器 (外部 FET)
技術文件
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| 類型 | 標題 | 下載最新的英文版本 | 日期 | |||
|---|---|---|---|---|---|---|
| 證書 | UCC2891EVM-520 EU Declaration of Conformity (DoC) | 2019/1/2 | ||||
| 使用指南 | 48-V to 3.3-V Forward Converter w/Active Clamp Reset Using the UCC2891 Active Cl (Rev. A) | 2012/4/13 |