# TC4421AVAT (Component) ## Description Low-Side Gate Driver IC Inverting TO-220-5 The TC4421AVAT is a high-speed MOSFET driver designed to efficiently drive power MOSFETs and IGBTs in switching applications. It features a low-impedance push-pull output stage capable of sourcing and sinking significant current, enabling rapid charging and discharging of gate capacitances for fast switching. The device supports both high- and low-side configurations, providing flexibility for power supply, motor control, DC-DC conversion, and class-D amplifier designs. Its robust design ensures reliable operation under high switching frequencies, minimizing losses and improving overall system efficiency. Engineering Specifications Manufacturer: Microchip Technology Part Number: TC4421AVAT Device Type: High-Speed MOSFET Driver Output Stage: Push-Pull Drive Capability: High Source and Sink Current Input Logic Compatibility: CMOS/TTL Compatible Supply Voltage Range: Wide Operating Range Propagation Delay: Low Rise/Fall Time: Fast Switching Output Voltage Swing: Rail-to-Rail Operating Frequency: High-Frequency Switching Applications Package Type: SOIC (Small Outline Integrated Circuit) Mounting Style: Surface Mount Thermal Performance: Designed for Efficient Heat Dissipation Protection Features: Undervoltage Lockout, Robust Against Overload Operating Temperature Range: Industrial Grade RoHS Compliant: Yes Applications: Power MOSFET/IGBT Switching, DC-DC Converters, Motor Control, Power Supplies, Class-D Audio Amplifiers, Pulse-Width Modulation Circuits, High-Speed Switching Circuits Key Features High current output for rapid gate charging and discharging CMOS/TTL input logic compatible Fast propagation delay and rise/fall times Rail-to-rail output voltage swing Suitable for high-speed, high-efficiency switching designs Reliable operation in industrial and commercial environments Compact surface-mount package for easy PCB integration Supports both high-side and low-side MOSFET driving Robust against short-term overloads and undervoltage conditions #TC4421AVAT #MicrochipTechnology #MOSFETDriver #IGBTDriver #HighSpeedDriver #PWMDriver #SwitchingPower #DC_DCConverter #MotorControl #PowerElectronics #IndustrialElectronics #SurfaceMount #ElectronicComponents #HighCurrentDriver #FastSwitching #EmbeddedSystems #PCBDesign ## Component Details - **Owner:** adrian95 - **Created:** 6/6/2026 - **Last Updated:** 6/6/2026 - **Visibility:** Public - **Symbol Style:** parametric-v1 - **Manufacturer Name:** Microchip - **Datasheet URL:** https://ww1.microchip.com/downloads/aemDocuments/documents/OTH/ProductDocuments/DataSheets/21946B.pdf - **Part Type:** Transistors - **Package or Case Code:** 220-TO - **Manufacturer Part Number:** TC4421AVAT ## Distributor Pricing (qty 1) *Pricing shown for quantity 1. For price breaks and other quantities, open in Flux.* | Distributor | Unit Price (qty 1) | Stock | |------------|--------------------|-------| | [Arrow](https://www.arrow.com/en/products/tc4421avat/microchip-technology.html?utm_currency=USD&region=nac) | $2.976 | 1 | | [LCSC](https://www.lcsc.com/product-detail/C41071443.html) | $5.7227 | 100 | | [Mouser](https://www.mouser.com/ProductDetail/Microchip-Technology/TC4421AVAT?qs=AkCjCAp%252BzjSyARvehDiE%2Fw%3D%3D) | $3.25 | 1.3K | | [TME](https://www.tme.com/us/en-us/katalog/?queryPhrase=TC4421AVAT) | $5.10 | 50 | | [Verical](https://www.verical.com/pd/microchip-technology-gate-and-power-driver-TC4421AVAT-436291?utm_currency=USD) | N/A | N/A | - **Part Type:** Transistors - **Sub-Type:** MOSFET - **Manufacturer:** Microchip - **MPN:** TC4421AVAT - **Mount Type:** Surface Mount - **Package / Case Code:** 220-TO - **Pin Count:** 5 - **Compliance:** Rohs ## Pins | Pin | Name | Type | |-----|------|------| | 1 | INPUT | | | 2 | GND_1 | | | 3 | VDD | | | 4 | GND_2 | | | 5 | OUTPUT | | --- *Generated from [https://www.flux.ai/adrian95/tc4421avat](https://www.flux.ai/adrian95/tc4421avat)*