The TC4421/TC4422 is a high peak output current 9A, wide input supply voltage working range 4.5V to 18V, high continuous output current 2A (maximum), fast rise and fall, short transmission delay time, small supply current, low output impedance, locking protection, input end can withstand a maximum of 5V of negative input, with TC4420/TC4429 6A MOSFET driver pin compatible, space-saving 8-pin 6x5 DFN package high current buffer / driver that can drive large power MOSFET and IGBT.
The TC4421 and TC4422 are 9 A high‑speed MOSFET driver ICs from Microchip. They support supply voltages from 4.5 V to 18 V and provide fast rise/fall times (30 ns to 180 ns depending on load capacitance). The devices feature low output resistance (typical 1.4 Ω) and can tolerate reverse currents up to 1.5 A.
The datasheet includes detailed electrical characteristics, pin definitions for PDIP, DFN, SO‑220 and SOIC packages, typical performance curves, and recommended layout guidelines. Contact information for Microchip worldwide support centers is also provided. This manual is written in Chinese.
| Supply voltage range | 4.5 V – 18 V |
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The driver operates from 4.5 V up to 18 V.