85VAC-265VAC/50Hz, 40V/130mA Primary-Side-Controlled, Offline, LED Driver Evaluation Board
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Product Description

The EV4034-S-00A Evaluation Board demonstrates the capabilities of the MP4034: a primary-side-controlled, offline, LED lighting controller that eliminates secondary feedback components.

The EV4034-S-00A typically drives a 5W LED string with a 40VTYP, 130mA LED load from 85VAC to 265VAC at 50Hz.

The EV4034-S-00A has excellent efficiency and meets IEC61547 surge immunity and EN55015-conducted EMI requirements. It has multiple protections, including open-circuit protection, short-circuit protection, a cycle-by-cycle current limit, and over-temperature protection.

Product Features

  • Primary-Side Control without Opto-Coupler and Secondary Feedback Circuit
  • Precise Constant Current (CC)
  • Integrated 700V MOSFET with Minimal External Components
  • Variable, Off-Time, Peak-Current Control
  • 600µA High-Voltage Current Source
  • Up to 5.2W Output Power
  • Over-Voltage Protection (OVP)
  • Over-Temperature Protection (OTP)
  • Open-Loop Protection (OLP)
  • Natural Frequency Dithering for Improved EMI Signature
  • Low Cost and Simple External Circuit
  • Fits GU10 LED


Primary-side regulator with accurate CC control for LED driver

The MP4034 is an offline regulator that provides accurate constant-current regulation. The LED driver circuit design is simplified by removing the optocoupler and the secondary feedback components. The MP4034 has an integrated 700V MOSFET. Its variable off-time control allows a flyback converter to operate in discontinuous conduction mode (DCM). The MP4034 also features complete protection functions such as VCC under-voltage lockout, over-voltage protection, over-temperature protection, and open-loop protection. The MP4034's variable switching frequency provides natural spectrum shaping to smooth the EMI signature, which can reduce the EMI filter’s size and cost.

Quality Policy, Certificates & Reliability Reports
All MPS parts are lead-free, halogen-free and adhere to the RoHS directive. See Environmental section for details.