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MP4031 Primary-Side–Controlled Offline LED Controller SOIC
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pMPS MP4031 — Primary-Side–Controlled Offline LED Controller, SOIC./p
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MP4031 Primary-Side–Controlled Offline LED Controller SOIC
The MPS MP4031 is a Primary-Side–Controlled Offline LED Controller. It is supplied in a SOIC package.
The MP4031 is a TRIAC and analog dimmable, primary-side–controlled, offline LED lighting controller with active PFC.
Key Specifications
| Part Number | MP4031 |
| Function | Primary-Side–Controlled Offline LED Controller |
| Package | SOIC |
| Ordering Codes | MP4031 |
Features
- Primary-Side-Control without Secondary-Side Feedback
- Internal Charging Circuit at the Supply Pin for Fast Start-Up
- Accurate Line Regulation
- High Power Factor
- Operates in Boundary Conduction Mode
- Flicker-Free, Phase-Controlled TRIAC Dimming with Expanded Dimming Range.
- Analog-Dimming Compatible
- Cycle-by-Cycle Current Limit
- Over-Voltage Protection
- Over-Load Protection
Typical Application Circuit
Design Notes
- Channel-to-channel current matching sets backlight uniformity; check the matching spec at the current you will actually run.
- In boost topologies the OVP threshold must clear the worst-case forward voltage of the longest string, including temperature and binning spread.
- Keep PWM dimming above 200 Hz to stay clear of visible flicker, and away from the audio band if the product has a speaker.
- Size the inductor and output capacitor for the string current ripple, not the total LED current.
Common Questions
Which package and ordering codes apply to the MP4031?
SOIC; order codes include MP4031.
What are the defining features of the MP4031?
Primary-Side-Control without Secondary-Side Feedback Internal Charging Circuit at the Supply Pin for Fast Start-Up
Shenzhen Gaorunxin Technology Co., Ltd
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