W1840 control circuit, main features and pin of DC-DC circuit and power supply monitor

Published:2011/7/10 2:32:00 Author:Lucas | Keyword: control circuit, main features , pin , DC-DC circuit , power supply monitor | From:SeekIC

W1840/2840/3840 adjustable isolated switching regulator control circuit It is the isolated switching regulator control circuit; it contains the functions of all the control, drive, monitor, protection, output stage latch; it contains low power, insulation start circuit; it cuts off when over voltage or under voltage; it is available in pulse command remote control; PWM Output switching current peak is 1A; reference voltage error is 1%; frequency is 500KHz; maximum PWM output voltage is 40V; maximum PWM output current is 400mA; maximum reference output current is -50mA; when ambient temperature is 70 ℃, the power is 1000mW; W1840 operating temperature is -55 ~ +125 ℃, W2840 is -25 ~ +85 ℃, W3840 is 0 ~ 70 ℃, and it is interchangeable with μC1840.



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