MR2920 Partial Resonance Power Supply IC Module/Standby mode operation

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The MR2900 Series IC modules are designed for both 200V and autosensing input with a burst-mode switching function at microloads. These modules are of the partial resonance type, and are comprised of a switching device optimized for both 200V and autosensing power supply input, and a control IC. They are designed to provide the following power supply characteristics

1. An ultra high-speed IGBT with 900V resistance ensures high efficiency and low noise at partial resonance.

2. An ultra high-speed IGBT with 900V resistance simplifies design for autosensing power supply input.

3. Very low power consumption at micro-loads (in burst mode).

4. Onboard start-up circuit eliminates the need for start-up resistors.

5. Soft drive circuit achieves low noise levels.

6. Excess current protection function (ton limit, primary current limit).

7. Excess voltage protection and thermal shut-down function.

8. Power supply circuits may be constructed with a minimum of external components.

9. The use of a full mold package provides benefits in insulation design. 


TVs, displays, printers, VTR, DVD, STB, air-conditioners, refrigerators, and other electrical appliances, and office equipment


Data sheet

Power rating
(output) 81.2W
Voltage Rating
(min) 1.2xVAC min
Input Voltage
Power Supply IC Module

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