Monolithic Power Systems (MPS) EVHFC0512-S-00A Controller Evaluation Board
Monolithic Power Systems (MPS) EVHFC0512-S-00A Controller Evaluation Board is designed to demonstrate the capabilities of the HFC0512, a fixed-frequency, current-mode controller with internal slope compensation. The HFC0512 is designed for medium-power, offline, flyback, switch-mode power supplies.
The Monolithic Power Systems (MPS) HFC0512 is a highly efficient, green-mode controller. At light loads, it maintains the peak current (IPEAK) and achieves excellent light-load efficiency by reducing its switching frequency (fSW) down to 27kHz. The controller enters burst mode at very light loads to achieve very low standby power consumption.
Features
- Fixed-frequency, current-mode control with internal slope compensation
- Frequency foldback down to 27kHz at light loads
- Burst mode for low standby power consumption, meeting the EuP Lot 6 standard
- Frequency jittering for reduced Electromagnetic Interference (EMI)
- Adjustable Over-Power Compensation (OPC)
- Internal high-voltage (HV) current source
- VCC Under-Voltage Lockout (UVLO) protection with hysteresis
- Brownout protection via the HV pin
- Overload Protection (OLP) with configurable delay
- Thermal shutdown (auto-restart with hysteresis)
- Latch-off protections
- External Over-Voltage Protection (OVP) and Over-Temperature Protection (OTP) via the TIMER pin
- VCC OVP
- Short-Circuit Protection (SCP)
- Configurable Soft Start (SS)
- Available in an SOIC8-7A package
Applications
- AC/DC power for small and large appliances
- AC/DC adapters for notebook computers, tablets, and smartphones
- Offline battery chargers
- LCD televisions and monitors
Board Layout
Related Current-Mode Controller
Monolithic Power Systems (MPS) HFC0512 Fixed-Frequency Current-Mode Controller
Efficient controller for medium-power, offline, flyback, switch-mode power supply applications.
發佈日期: 2025-07-15
| 更新日期: 2025-07-31