SCM1212A Transformer Driver for Isolated Power Supplies
Features Packaging 4.5~8V Wide input voltage
Push-Pull Driver for Small Transformers
Two built-in power MOSFET and Highly symmetrical drive
Built in soft start function
Output short circuit protection
Over temperature protection Application Optional Packaging of Product:SOT23-5 please refer to DC-DC Isolation Converter
Isolated Interface Power Supply for
CAN,RS-485,RS-422,RS-232,SPI,I2C,Low-Power LAN.
Industrial Automation
Process Control
Medical Equipment “Order Information” for details of silk screen. Description
The SCM1212A is a oscillator power-driver integrated with MOSFET,specifically designed for small form factor,isolated power supplies in isolated
interface applications.The SCM1212A drives a low-profile,center-tapped transformer primary from a 4.5~8V wide DC power supply.The secondary can
be wound to provide any isolated voltage based on transformer turns ratio when VVD1/VVD2 is less than absolute maximum rating.
The driver of internal MOSFETs is highly symmetrical,thereby decreasing the degree of magnetic biasing of push-pull topology.The chip also is
integrated with three key technologies to improve reliability:soft start,output short circuit protection,and over temperature protection.
The SCM1212A is available in a small SOT23-5 package,and is specified for operation at temperatures from -40℃ to 125℃. Simplified Schemetic Function Curves 2019.12.13-A/3 Page 1 of 11 MORNSUN Guangzhou Science & Technology Co.,Ltd.reserves the copyright and right of final interpretation Absolute maximum ratings Test conditions: Free-air,normal operating temperature range unless otherwise specified,voltage reference is ground. Contents
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1.4 Features and Packaging.1 …
