描述 Description

The TC4421A/TC4422A are improved versions of the earlier TC4421/TC4422 family of single-output MOSFET gate drivers. These devices are high-current buffer/drivers capable of driving large MOSFETs and Insulated Gate Bipolar Transistors (IGBTs). The TC4421A/TC4422A have matched output rise and fall times, as well as matched leading and falling-edge propagation delay times. The TC4421A/TC4422A devices also have very low cross-conduction current, reducing the overall power dissipation of the device.These devices are essentially immune to any form of upset, except direct overvoltage or over-dissipation. They cannot be latched under any conditions within their power and voltage ratings. These parts are not subject to damage or improper operation when up to 5 V of ground bounce is present on their ground terminals. They can accept, without damage or logic upset, more than 1 A inductive current of either polarity being forced back into their outputs. In addition, all terminals are fully protected against up to 4 kV of electrostatic discharge.The TC4421A/TC4422A inputs may be driven directly from either TTL or CMOS (3 V to 18 V). In addition, 300 mV of hysteresis is built into the input, providing noise immunity and allowing the device to be driven from slowly rising or falling waveforms. With both surface-mount and pin-through-hole packages, in addition to a wide operating temperature range, the TC4421A/TC4422A family of 9 A MOSFET gate drivers fit into most any application where high gate/line capacitance drive is required.

特性 Features

Latch up Immunity
Matched Rise and Fall Times
Input withstands negative swings up to 5 V
High peak Output current of 9 A
High Capacitive Load drive Capability 10 nF in 25 ns
Wide Operating Range 4.5 V to 18 V
Low Propagation Delay Times Low Output Impedance 800 mΩ
low supply current (450μA w/ logic 1 input)
Can Withstand Up to 1.5 A of Output Reverse Current
Reduced shoot through current
Wide Operating Temperature Range -55oC to +125oC

簡介

TC4422A屬于集成電路（IC）的柵極驅(qū)動器。由制造生產(chǎn)的TC4422A柵極驅(qū)動器柵極驅(qū)動器電源管理集成電路 (PMIC) 可用于提供隔離、放大、參考位移、自舉或其他必要功能，這些功能可將來自電源轉(zhuǎn)換應(yīng)用中控制設(shè)備的信號連接到電源被控制通過的半導(dǎo)體設(shè)備（通常為 FET 或 IGBT）。任何特定設(shè)備提供的確切功能各不相同，但與它適合驅(qū)動的半導(dǎo)體配置相關(guān)。