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Power switch for 2200V 23-05-08


STMicroelectronics has introduced the STC03DE220HV ESBT (Emitter-Switched Bipolar Transistor) power switch for auxiliary switched-mode power supplies for single- and three-phase applications. The STC03DE220HV is rated for 2200V breakdown voltage, allowing designers to use a single-switch flyback topology in universal-input converters operating from 90V AC to 690V AC. ST's range of ESBTs now allows designers to build quasi-resonant converters up to 250W, using a common hardware platform with a suitable controller such as the L6565.

 

Operating efficiently at 150kHz maximum switching frequency and 3A maximum rated current, the STC03DE220HV can be used in auxiliary SMPS applications including industrial utility metering, inverter drives for induction motors, welding equipment and uninterruptible power supplies (UPS). Further advantages include an enhanced TO247-4L package, providing 8.9mm of creepage distance to exceed IEC664-1 specifications at the maximum working voltage of 2200V. The STC03DE220HV achieves an equivalent on-resistance of 0.33 Ohm, from the collector to source, while also operating at up to 150kHz. The STC03DE220HV is in full production, and available at $3.50 in quantities over 1000 pieces.

 


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