Universal Input 8W AC-DC for Home Appliances – Eval Board
The EV020A-5-S-01B evaluation board from Monolithic Power Systems is designed to demonstrate the capabilities of MP020A-5, a primary-side control offline regulator which can eliminate secondary feedback components in ac-dc power supplies.
The evaluation board is designed for small home appliances and similar systems which output 12V/0.65A and 5V/50mA load from 85Vac to 265Vac, 50Hz/60Hz.
Typical applications include:
- Small Home Appliances
- Cell Phone Chargers
- Adapters for Handheld Electronics
- Stand-By and Auxiliary Power Supplies
- Small Appliances
The EV020A-5-S-01B has an excellent efficiency and meets IEC61000-4-5 surge immunity and EN55022 conducted EMI requirements. It has multi-protection function as open circuit protection, short-circuit protection, cycle by cycle current limit and overtemperature protection, etc.
Features of the EV020A-5-S-01B include:
- Primary-Side-Control without Opto-Coupler or Secondary Feedback Circuit
- Precise Constant Current and Constant Voltage Control (CC/CV)
- Integrated 700V MOSFET with Minimal External Components
- Variable, Off-Time, Peak-Current Control
- 550µA High-Voltage Current Source
- 100mW No-Load Power Consumption
- Programmable Cable Compensation
- Multiple Protections: OVP, OCP, OCkP, OTP, and VCC UVLO
- Natural Spectrum Shaping for Improved EMI Signature
- Low Cost and Simple External circuit
EV020A-5-S-01B specifications
The MP020A-5
The MP020A-5 is an offline, primary-side regulator that provides accurate constant voltage and constant current regulation without an optocoupler or a secondary feedback circuit. The MP020A-5 has an integrated 700V MOSFET.
The MP020A-5's variable off-time control allows a flyback converter to operate in discontinuous conduction mode (DCM). The MP020A-5 also features protection functions such as VCC under-voltage lockout (UVLO), over-current protection (OCP), over-temperature protection (OTP), open-circuit protection (OCkP), and over-voltage protection (OVP). Its internal high-voltage start-up current source and power-saving technologies limit the no-load power consumption to less than 30mW.
The MP020A-5's variable switching frequency technology provides natural spectrum shaping to smooth the EMI signature, making it suitable for offline, low-power battery chargers and adapters.
The MP020A-5 is available in a SOIC8-7A package.
