Supertex Introduces High Voltage, Class-D Audio Amplifier Driver

Supertex has introduced its MD7120, a high voltage, high speed, N-channel, full-bridge power MOSFET driver for use in Class-D audio amplifiers. Suited for use in Class-D audio amplifiers, the model MD7120 provides 12-200 V output, ±5 nanosec dead time matching, and rise or fall time of less than 30 nsec with typical 1 nF load. Unit can be connected directly to 200 V supply voltage to drive over 100 W output with 90% efficiency. Its internal core consists of control logic, level translators, bootstrap-powered high side gate driver, and over-temperature, under-voltage, and current protection circuits. The MD7120 is available in a 32-lead QFN package (MD7120K6-G). The part is Green and RoHS compliant. The samples are available from stock. Lead-time for production quantities is 4-6 weeks ARO. Pricing is US $5.20 each for the MD7120K6-G in 1K quantities.