Monolithic Power Systems (MPS) EVHF500A-20-P-00A Controller Evaluation Board
Monolithic Power Systems (MPS) EVHF500A-20-P-00A Controller Evaluation Board is designed to demonstrate the capabilities of the HF500A-20, a single-stage, isolated flyback power supply converter in AC/DC power module and adapter applications. The Monolithic Power Systems (MPS) HF500A-20 is a fixed-frequency, current-mode regulator with built-in slope compensation. It combines a 700V MOSFET and a full-featured controller into one chip for a low-power, offline, flyback switch-mode power supply. The device optimizes EMI performance, especially for radiated emission.
Features
- Fixed frequency, current mode control, and internal slope compensation
- 700V/2.6Ω integrated MOSFET
- Frequency foldback down to 25kHz at light loads
- Burst mode for low standby power consumption
- Frequency jittering (fJITTER) for reduced Electromagnetic Interference (EMI)
- Over-Power Compensation (OPC)
- VCC voltage Under-Voltage Lockout (UVLO) protection with hysteresis
- Internal high-voltage current source
- Configurable input voltage (VIN) brownout protection and input Over-Voltage Protection (OVP)
- VCC Over-Voltage Protection (OVP)
- Overload Protection (OLP) with a configurable delay
- Short-Circuit Protection (SCP)
- Latch-off protection via the TIMER pin
- Configurable Soft Start (SS)
- Thermal shutdown with auto-restart and hysteresis
Applications
- Home appliance power supplies
- Set-top boxes
- Standby and auxiliary power
- Adapters
Board Layout
公開: 2025-07-15
| 更新済み: 2025-07-31