适用于隔离式电源的 变压器驱动器ZCC6601 替代SN6505 DESCRIPTION TheZCC6601 is a monolithic oscillator/power-driver, specifically designed forsmall form factor, isolated power supplies in isolated interface applications.It drives a low-profile, center-tapped transformer primary from a 3.3 Vor 5 VDC power supply. The secondary can be wound to provide any isolated voltage basedon transformerturns ratio. TheZCC6601 consists of an oscillator followed by a gate drive circuit thatprovides the complementary output signals to drive the ground referencedN-channel power switches. The internal logic ensures break-before-make actionbetween the two switches. TheZCC6601 is available in a small SOT23-5 package, and is specified for operationat temperatures from –40°C to 125°C. FEATURES • Push-Pull Driver for SmallTransformers • Single 3.3 V or 5 V Supply • High Primary-side Current Drive: – 5 V Supply: 650 mA (max) – 3.3 V Supply: 450 mA (max) • Low Ripple on Rectified OutputPermits Small Output Capacitors • Soft start and Current limit • Thermal shutdown • Small 5-pin SOT23 Package • Short circuit protection • Over temperature protection APPLICATIONS • Isolated Interface Power Supply forCAN, RS- 485, RS-422, RS-232, SPI, I2C, Low-PowerLAN • Industrial Automation • Process Control • Medical Equipment
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发表于 2022-11-15 18:05:28