The Micrel MIC4600 is a 28V half bridge MOSFET driver targeted for cost sensitive applications requiring high performance such as set-top boxes, gateways, routers, computing peripherals, telecom and networking equipment. The MIC4600 operates over a supply range of 4.5V to 28V. It has an internal linear regulator which provides a regulated 5V to power the MOSFET gate drive and operates up to 1.5MHz switching frequency. The MIC4600 uses an adjustable dead time circuit to prevent shoot-through in the external high and low-side MOSFETs. The MIC4600 is available in a small 3mm x 3mm QFN package with a junction temperature range of -40°C to 125°C.

• Adjustable dead time circuitry
• Anti-shoot-through protection
• Internal LDO for single supply operation
• Input voltage range: 4.5V to 28V
• Fast propagation delay: 20ns
• Up to 1.5 MHz operation
• Low voltage logic level inputs for µC or FPGA driven power solutions
• Independent inputs for low and high side drivers
• 2Ω gate drive capable of driving 3000pF load with 15ns rise and fall times
• Low 450µA typical quiescent current
• 3mm x 3mm QFN package
• -40°C to +125°C junction temperature range