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MOSFET driver IC includes anti-shoot through protection

Posted: 29 Oct 2004 ?? ?Print Version ?Bookmark and Share

Keywords:mic4102? mosfet driver? micrel semiconductor?

The MIC4102 100V half bridge MOSFET driver IC from Micrel Semiconductor comes with an internal anti-shoot through protection.

A high frequency driver IC, the device implements adaptive anti-shoot-through circuitry to optimize the switching transitions for maximum efficiency, the company said. The low-side and high-side gate drivers are controlled by a single input signal to the PWM pin. Furthermore, Micrel added, the single input control also reduces system complexity and greatly simplifies the overall design.

Since the MIC4102 also has a low-side drive disable pin, it can operate in a non-synchronous buck mode. This feature allows the driver IC to start up into applications where a bias voltage may already be present without pulling the output voltage down.

Other features

With a supply voltage up to 16V, the MIC4102 features a bootstrap supply voltage to 118Vdc, 30ns propagation times, TTL input thresholds and low power consumption. Additionally, the chip drives 1,000pF load with 10ns rise and fall times. Under-voltage protection on both the low-side and high-side supplies forces the outputs low, while the on-chip boot-strap diode eliminates the discrete diode required with other driver ICs.

The MIC4102 is housed in the SOIC-8L package with a junction operating range between -40C and 125C.





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