MIC4422ACN

MIC4422ACN Features

 High peak-output current: 9A Peak (typ.) Wide operating range: 4.5V to 18V (typ.) Minimum pulse width: 50ns Latch-up proof: fully isolated process is inherentlyimmune to any latch-upInput will withstand negative swing of up to 5V High capacitive load drive: 47,000pF Low delay time: 15ns (typ.) Logic high input for any voltage from 2.4V to VS Low equivalent input capacitance: 7pF (typ.) Low supply current: 500µA (typ.) Output voltage swing to within 25mV of GND or VS

MIC4422ACN General Description

MIC4421A and MIC4422A MOSFET drivers are rugged,efficient, and easy to use. The MIC4421A is an invertingdriver, while the MIC4422A is a non-inverting driver.Both versions are capable of 9A (peak) output and candriveimproved safeoperating margin. The MIC4421A/4422A accepts any logicinput from 2.4V to VS without external speed-up capacitorsor resistor networks. Proprietary circuits allow the input toswing negative by as much as 5V without damaging thepart. Additional circuits protect against damage fromelectrostatic discharge.MIC4421A/4422A drivers can replace three or morediscrete components, reducing PCB area requirements,simplifying product design, and reducing assembly cost.Modern Bipolar/CMOS/DMOS construction guaranteesfreedom from latch-up. The rail-to-rail swing capability ofCMOS/DMOStheMOSFET during power up/down sequencing. Since thesedevices are fabricated on a self-aligned process, they havevery low crossover current, run cool, use little power, andare easy to drive.Data sheets and support documentation can be found onMicrel’s web site at: www.micrel.com.insures adequate gate voltageto

MIC4422ACN Applications

 Switch mode power supplies Motor controls Pulse transformer driver Class-D switching amplifiers Line drivers Driving MOSFET or IGBT parallel chip modules Local power ON/OFF switch Pulse generators___________________________________________________________________________________________________________

MIC4422ACN Pin Description

Pin NumberDIP, SOICPin NumberTO-220-5Pin NamePin Name24, 51, 86, 7312, 43, TAB5—INGNDVSOUTNCControl Input.Ground: Duplicate pins must be externally connected together.Supply Input: Duplicate pins must be externally connected together.Output: Duplicate pins must be externally connected together.Not connected.August 20122M9999-080112