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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
•solated 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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