TC4421A/TC4422A 9A High-Speed MOSFET Drivers Features General Description High Peak Output Current: 10A (typ.) The TC4421A/TC4422A are improved versions of the earlier TC4421/TC4422 family of single-output Low Shoot-Through/Cross-Conduction Current in MOSFET drivers. These devices are high-current buf- Output Stage fer/drivers capable of driving large MOSFETs and Insu- Wide Input Supply Voltage Operating Range: lated Gate Bipolar Transistors (IGBTs). The - 4.5V to 18V TC4421A/TC4422A have matched output rise and fall High Continuous Output Current: 2A (max.) times, as well as matched leading and falling-edge Matched Fast Rise and Fall Times: propagation delay times. The TC4421A/TC4422A devices also have very low cross-conduction current, - 15 ns with 4,700 pF Load reducing the overall power dissipation of the device. - 135 ns with 47,000 pF Load These devices are essentially immune to any form of Matched Short Propagation Delays: 42 ns (typ.) upset, except direct overvoltage or over-dissipation. Low Supply Current: They cannot be latched under any conditions within - With Logic 1 Input 130 A (typ.) their power and voltage ratings. These parts are not - With Logic 0 Input 33 A (typ.) subject to damage or improper operation when up to Low Output Impedance: 1.2 (typ.) 5V of ground bounce is present on their ground Latch-Up Protected: Will Withstand 1.5A Output terminals. They can accept, without damage or logic Reverse Current upset, more than 1A inductive current of either polarity being forced back into their outputs. In addition, all Input Will Withstand Negative Inputs Up To 5V terminals are fully protected against up to 4kV of Pin-Compatible with the TC4420/TC4429 electrostatic discharge. and TC4421/TC4422 MOSFET Drivers The TC4421A/TC4422A inputs may be driven directly Space-Saving, Thermally-Enhanced, 8-Pin DFN from either TTL or CMOS (3V to 18V). In addition, Package 300 mV of hysteresis is built into the input, providing noise immunity and allowing the device to be driven Applications from slowly rising or falling waveforms. Line Drivers for Extra Heavily-Loaded Lines With both surface-mount and pin-through-hole Pulse Generators packages, in addition to a wide operating temperature Driving the Largest MOSFETs and IGBTs range, the TC4421A/TC4422A family of 9A MOSFET Local Power ON/OFF Switch drivers fit into most any application where high gate/line capacitance drive is required. Motor and Solenoid Driver LF Initiator (1) Package Types (2) 8-Pin TC4421A TC4422A 5-Pin TO-220 8-Pin DFN TC4421A TC4422A PDIP/SOIC Tab is V DD 1 V V 8 Common V V DD DD V 1 8 DD DD DD to V DD INPUT 2 2 7 OUTPUT OUTPUT INPUT 7 OUTPUT OUTPUT TC4421A TC4421A NC TC4421A 3 6 OUTPUT OUTPUT TC4422A TC4422A NC 3 6 OUTPUT OUTPUT TC4422A GND GND GND 4 5 4 GND 5 GND GND Note 1: Duplicate pins must both be connected for proper operation. 2: Exposed pad of the DFN package is electrically isolated. 2005-2013 Microchip Technology Inc. DS21946B-page 1 INPUT GND V DD GND OUTPUTTC4421A/TC4422A Functional Block Diagram V DD TC4421A Inverting 130 A Output 300 mV Cross-Conduction Reduction and Pre-Drive Output Circuitry TC4422A Input Non-Inverting 4.7V GND Effective Input C = 25 pF DS21946B-page 2 2005-2013 Microchip Technology Inc.