Monolithic Power Systems MP4030A

Description

The MP4030A is a TRIAC-dimmable, primaryside-control, offline LED lighting controller with active PFC. It can output an accurate LED current for an isolated lighting application with a single-stage converter. The proprietary realcurrent-control method can accurately control the LED current using primary-side information. It can significantly simplify LED lighting systemdesign by eliminating secondary-side feedback components and the optocoupler.

The MP4030A implements power-factor correction and works in boundary-conduction mode to reduce MOSFET switching losses.

The MP4030A has an integrated charging circuit at the supply pin for fast start-up without a perceptible delay.

The proprietary dimming control expands the TRIAC-based dimming range.

The MP4030A features multiple protections including over-voltage protection (OVP), shortcircuit protection (SCP), primary-side overcurrentprotection (OCP), supply-pin undervoltage lockout (UVLO), and over temperature protection (OTP). All of which not only simplifies circuit design but also enhances system reliability and safety greatly. All fault protections feature auto-restart.

The MP4030A is available in an 8-pin SOIC package.

Features

• Primary-Side-Control without Requiring a Secondary-Side Feedback Circuit
• Internal Charging Circuit at the Supply Pin for Fast Start-Up
• Accurate Line and load Regulation
• High Power Factorn and Improved THD
• Flicker-Free, Phase-Controlled TRIAC Dimming with Expanded Dimming Range 1% to 100% Full Range.
• Operates in Boundary Conduction Mode
• Cycle-by-Cycle Current Limit
• Programmable Primary-Side Over-Current Protection
• Over-Voltage Protection
• Short-Circuit Protection
• Over-Temperature Protection
• Available in an 8-Pin SOIC Package

Remarks

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• Refer Page no-19 figure no-18L2=L3=2.2mH,L1=1mH and Lp=2.15mH are used.
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Typical applications

• Industrial and Commercial Lighting
• Residential Lighting
• Solid-State Lighting

More information

• Datasheet
• IC product information