MAX253 Datasheet (Maxim) - Transformer Driver

MAX253, Transformer Driver

The MAX253 is a monolithic oscillator/power-driver, specifically designed to provide isolated power for an isolated RS-485 or RS-232 data interface.

It drives a center-tapped transformer primary from a 5V or 3.3V DC power supply.

The secondary can be wound to provide any isolated voltage needed at p

MAX253 Features

* o Power-Supply Transformer Driver for Isolated RS-485/RS-232 Data-Interface Applications o Single +5V or +3.3V Supply o Low-Current Shutdown Mode: 0.4µA o Pin-Selectable Frequency: 350kHz or 200kHz o 8-Pin DIP, SO, and µMAX Packages MAX253 ______________Ordering Information PART MAX253CPA MAX253CS