MIC4420/4429 Micrel, Inc. MIC4420/4429 6A-Peak Low-Side MOSFET Driver Bipolar/CMOS/DMOS Process General Description Features CMOS Construction MIC4420, MIC4429 and MIC429 MOSFET drivers are Latch-Up Protected: Will Withstand >500mA tough, efcient, and easy to use. The MIC4429 and MIC429 Reverse Output Current are inverting drivers, while the MIC4420 is a non-inverting Logic Input Withstands Negative Swing of Up to 5V driver. Matched Rise and Fall Times ................................25ns They are capable of 6A (peak) output and can drive the larg- High Peak Output Current ............................... 6A Peak est MOSFETs with an improved safe operating margin. The Wide Operating Range ...............................4.5V to 18V MIC4420/4429/429 accepts any logic input from 2.4V to V High Capacitive Load Drive ............................10,000pF S without external speed-up capacitors or resistor networks. Low Delay Time .............................................. 55ns Typ Proprietary circuits allow the input to swing negative by as Logic High Input for Any Voltage From 2.4V to V S much as 5V without damaging the part. Additional circuits Low Equivalent Input Capacitance (typ) ..................6pF protect against damage from electrostatic discharge. Low Supply Current ...............450A With Logic 1 Input Low Output Impedance ......................................... 2.5 MIC4420/4429/429 drivers can replace three or more Output Voltage Swing Within 25mV of Ground or V S discrete components, reducing PCB area requirements, simplifying product design, and reducing assembly cost. Applications Modern BiCMOS/DMOS construction guarantees freedom Switch Mode Power Supplies from latch-up. The rail-to-rail swing capability insures ad- Motor Controls equate gate voltage to the MOSFET during power up/down Pulse Transformer Driver sequencing. Class-D Switching Ampliers Note: See MIC4120/4129 for high power and narrow pulse applications. Functional Diagram V S MIC4429 0.4mA INVERTING 0.1mA OUT IN 2k MIC4420 NONINVERTING GND Micrel, Inc. 2180 Fortune Drive San Jose, CA 95131 USA tel + 1 (408) 944-0800 fax + 1 (408) 474-1000 MIC4420/4429 Micrel, Inc. Ordering Information Part No. Temperature Standard Pb-Free Range Package Conguration MIC4420CN MIC4420ZN 0C to +70C 8-Pin PDIP Non-Inverting MIC4420BN MIC4420YN 40C to +85C 8-Pin PDIP Non-Inverting MIC4420CM MIC4420ZM 0C to +70C 8-Pin SOIC Non-Inverting MIC4420BM MIC4420YM 40C to +85C 8-Pin SOIC Non-Inverting MIC4420BMM MIC4420YMM 40C to +85C 8-Pin MSOP Non-Inverting MIC4420CT MIC4420ZT 0C to +70C 5-Pin TO-220 Non-Inverting MIC4429CN MIC4429ZN 0C to +70C 8-Pin PDIP Inverting MIC4429BN MIC4429YN 40C to +85C 8-Pin PDIP Inverting MIC4429CM MIC4429ZM 0C to +70C 8-Pin SOIC Inverting MIC4429BM MIC4429YM 40C to +85C 8-Pin SOIC Inverting MIC4429BMM MIC4429YMM 40C to +85C 8-Pin MSOP Inverting MIC4429CT MIC4429ZT 0C to +70C 5-Pin TO-220 Inverting Pin Congurations VS 1 8 VS IN 2 7 OUT NC 3 6 OUT 4 5 GND GND Plastic DIP (N) SOIC (M) MSOP (MM) 5 OUT 4 GND 3 VS 2 GND 1 IN TO-220-5 (T) Pin Description Pin Number Pin Number Pin Name Pin Function TO-220-5 DIP, SOIC, MSOP 1 2 IN Control Input 2, 4 4, 5 GND Ground: Duplicate pins must be externally connected together. 3, TAB 1, 8 V Supply Input: Duplicate pins must be externally connected together. S 5 6, 7 OUT Output: Duplicate pins must be externally connected together. 3 NC Not connected. M9999-072205 2 July 2005