Monolithic Power Systems MP020-5

Description

The MP020-5 is an offline, primary-side regulator that provides accurate constant voltage and constant current regulation without an opto-coupler or a secondary feedback circuit. It has an integrated 700V MOSFET.

The MP020-5's variable off-time control allows a flyback converter to operate in discontinuous conduction mode. The MP020-5 also features protection functions such as VCC under-voltage lockout, over-current protection, overtemperature protection, open circuit protection (OCkP) and over-voltage protection. Its internal high-voltage start-up current source and owersavingtechnologies limit the no-load power consumption to less than 30mW.

The MP020-5'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 MP020-5 is available in SOIC8-7A.

Features

• 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
• 30mW 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
• SOIC8-7A Package

Remarks

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• Refer Page no-18,Figure-16L1=1000uH,Lp=1.6mH are used
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• Refer link-https://www.monolithicpower.com/DesktopModules/DocumentManage/API/Document/GetDocument?id=2557 Page no-3L1-1000uH,Lp=1.25mH are used
• Refer link-https://www.monolithicpower.com/DesktopModules/DocumentManage/API/Document/GetDocument?id=2558 Page no-3L1=1000uH,Lp=1.8mH are used.

Typical applications

• Adapters for Handheld Electronics
• Stand-By and Auxiliary Power Supplies
• Small Appliances
• Cell Phone Chargers

More information

• Datasheet