Features

• ADuM347x Isolated Switching Regulators, Analog Devices. The ADuM347x series from Analog Devices are a range of quad channel digital isolators incorporating Analog Devices ‘ iCoupler® technology with an integrated PWM controller and transformer driver. This design eliminates the need for a separate isolated DC-to-DC converter in 2W isolated designs. Features. Isolated PWM controller Integrated transformer driver Regulated adjustable output: 3.3V to 24V 2W output power 70% efficiency at guaranteed load of 400mA at 5.0V output Quad DC-to-25Mbps signal isolation channels High common-mode transient immunity: >25kV/μs 200kHz to 1MHz adjustable oscillator frequency Soft start function at power-up Pulse-by-pulse overcurrent protection Thermal shutdown 3.3V to 5V input logic 4.5V to 18V output drive Thermal shutdown protection at >150°C 2500Vrms isolation voltage. Typical Applications. RS-232/RS-422/RS-485 transceivers Industrial field bus isolation Power supply start-up bias and gate drives Isolated sensor interfaces Process controls Automotive