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DESCRIPTION The ZCC6602 is amonolithic oscillator/power-driver, specifically designed for small formfactor, isolated power supplies inisolated interface applications. It drives a low-profile, center-tappedtransformer primary from a 2.5 V to 12V DC powersupply. The secondary can be wound to provide any isolated voltage based ontransformer turns ratio. The ZCC6602consists of an oscillator followed by a gate drive circuit that provides thecomplementary output signals to drivethe ground referenced N-channel power switches. The internal logic ensuresbreak-before-make action between thetwo switches. The ZCC6602 isavailable in a small SOT23-5 package, and is specified for operation attemperatures from – 40°C to 125°C. FEATURES • Push-PullDriver for Small Transformers • Single 2.5V To 12 V Supply • HighPrimary-side Current Drive: – 5 VSupply: 650 mA (max) – 3.3 VSupply: 450 mA (max) • Low Rippleon Rectified Output Permits Small Output Capacitors • Soft startand Current limit • Thermalshutdown • Small5-pin SOT23 Package Short- circuit protection Over-temperatureprotection •APPLICATIONS • IsolatedInterface Power Supply for CAN, RS- 485, RS-422, RS-232,SPI, I2C, Low-Power LAN • IndustrialAutomation • ProcessControl • MedicalEquipment
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发表于 2022-7-11 18:00:36