MAX253CPA+

The MAX253CPA+ is a simple power-supply Transformer Driver for isolated RS-485/RS-232 data-interface applications. The device drives a centre-tapped transformer primary from a 5 or 3.3VDC power supply. The secondary can be wound to provide any isolated voltage needed at power levels up to 1W. The MAX253 consists of a CMOS oscillator driving a pair of N-channel power switches. The oscillator runs at double the output frequency, driving a toggle flip-flop to ensure 50% duty cycle to each of the switches. Internal delays are arranged to ensure break-before-make action between the two switches. The SD pin puts the entire device into a low-power shutdown state, disabling both the power switches and oscillator.

• 0.4μA Low-current shutdown mode

애플리케이션

Power Management, Communications & Networking, Medical, Automation & Process Control

경고

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party

메모

Market demand for this product has caused an extension in leadtimes. Delivery dates may fluctuate. Product exempt from discounts.