Monolithic Power Systems MP4030

Description

The MP4030 is a TRIAC-dimmable, primary-sidecontrol, offline LED lighting controller with active PFC. It can output an accurate LED current foran isolated lighting application with a single-stage converter. The proprietary real-current-control method can accurately control the LED current using primary-side information. It can significantly simplify LED lighting system design by eliminating secondary-side feedback componentsand the optocoupler.

The MP4030 implements power-factor correction and works in boundary-conduction mode to reduce MOSFET switching losses.'

The MP4030 has an integrated charging circuit at the supply pin for fast start-up without a perceptible delay.

The proprietary dimming contraol expands the TRIAC-based dimming range.The MP4030 has multiple protections that greatly enhance system reliability and safety, and include over-voltage protection, short-circuit protection, programmable primary-side overcurrent protection, supply-pin under-voltage lockout, and over-temperature protection.

All fault protections feature auto-restart.

The MP4030 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 Regulation
• High Power Factor
• Flicker-Free, Phase-Controlled TRIAC
• Dimming with Expanded Dimming 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

• Refer Page no-19 figure no-17L1=L2=4.7mH,L3=1.8mH and Lp=1.92mH are used.
• Refer Page no-19 figure no-18L2=L3=1.8mH,L1=1mH and Lp=2.15mH are used.
• Refer Page no-20 Figure no-19L1=L2=L3=4.7mH,Lp=841uH are used.

Refer Page no-20 Figure no-20L1=1mH,L2=L3=1.8mH and Lp=2.15mH are used.

Typical applications

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

More information

• Datasheet
• IC product information