• ME8165_V06_en.pdf

  （Documentation）

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• Built-in 700V high voltage power transistor
• Internal high voltage start current source, quick start, current limit compensation
• Built-in energy efficiency treatment control, standby less than 0.1 W
• Internal Overpressure Overload Overheat and Short Circuit Protection
• Low start-up current and low operating current
• Adaptive frequency rotation design, EMI interference is small
• High conversion efficiency
• There are few peripheral components and the cost
• of the whole machine is low.
• Internal circuit compensation, accurate LPS control.
• Ejector drive improves start-up time
• The unique start circuit ensures that the low temperature operating point can reach -20°C
• 8165G internal 700V / 4M high-voltage startup resistor

The current mode PWM controller with high and low voltage constant power compensation uses secondary feedback to provide a continuous output power of 15W and a peak output power of 18W in the full voltage range. The power controller can work in a typical anti-excitation circuit topology. The chip adopts a bipolar circuit design, which increases the reliability of the full temperature range, reduces noise, and improves the switching speed. The IC internal high voltage start circuit is designed as a current inhalation mode in the emitter drive mode. Using the emitter drive isolation effect, the collector's amplification of the base at the start of the power switch tube is started for VCC charging. Reduced the power consumption of the starting resistor during the operation, and the output power is smaller, the IC will automatically reduce the operating frequency, thus achieving low standby power consumption. When the VCC reaches 21V, the internal chip will start overpressure protection, limiting the output voltage rise. IC also provides anti-output short-circuit, anti-overload, anti-saturation, anti-overtemperature and other functions, can effectively protect the output overload, Transformer saturation, output short-circuit, overheating, etc., and improve the reliability of the power supply. Current limits can be set by external resistors according to different output power requirements. The built-in unique active current mirror circuit compensates for the same output power in the full voltage range.