FEATURES 

• Push-Pull Driver for Small Transformers

 • Wide range 3 V - 12 V Supply 

• High Primary-side Current Drive:  – 5 V Supply: 600 mA (max)  – 3.3 V Supply: 300 mA (max)

• Low Ripple on Rectified Output Permits Small Output Capacitors

• Soft start and Current limit

• Thermal shutdown

• Small 5-pin SOT23 Package

APPLICATIONS 

 • Isolated Interface Power Supply for CAN, RS- 485, RS-422, RS-232, SPI, I2C, Low-Power LAN

• Industrial Automation 

• Process Control

• Medical Equipment

DESCRIPTION 

The ZCC6601 is a monolithic oscillator/power-driver, specifically designed for small form factor, isolated power supplies in isolated interface applications. It drives a low-profile, center-tapped transformer primary from a 3V to12 V DC power supply. The secondary can be wound to provide any isolated voltage based on transformer turns ratio. The ZCC6601 consists of an oscillator followed by a gate drive circuit that provides the complementary output signals to drive the ground referenced N-channel power switches. The internal logic ensures break-before-make action between the two switches. The ZCC6601 is available in a small SOT23-5 package, and is specified for operation at temperatures from –40°C to 125°C.

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