描述 Description

The TC4426/4427/4428 are improved versions of the earlier TC426/427/428 family of buffer/gate drivers (with which they are pin compatible). They will not latch up under any conditions within their power and voltage ratings. They are not subject to damage when up to 5 V of noise spiking (of either polarity) occurs on the ground pin. They can accept, without damage or logic upset, up to 500 mA of reverse current (of either polarity) being forced back into their outputs. All terminals are fully protected against up to 2 kV of electrostatic discharge. As MOSFET gate drivers, the TC4426/4427/4428 can easily switch 1,000 pF gate capacitances in 25 ns, and provide low enough impedances in both the ON and OFF states to ensure the MOSFETs intended state will not be affected by large transients. However, the recommended pin-compatible drivers are the TC4426A/27A/28A. These gate drivers have matched input to output leading edge and falling edge delays, tD1 and tD2, for processing short duration pulses in the 25 ns range. They are pin compatible with the TC4426/27/28.

特性 Features

Wide Operating Range: 4.5 V to 18 V
High Capacitive Load Drive Capability: 1,000 pF in 25 ns (Typical)
Short Delay Times: 40 ns (Typical)
Consistent Delay Times With Changes in Supply Voltage
With Logic ''1'' Input: 4.5 mA
With Logic ''0'' Input: 400 μA
Low Output Impedance: 7 Ω (Typical)
Latch-Up Protected: Will Withstand > 500 mA Reverse Current, Down to -5 V
Input Will Withstand Negative Inputs
ESD Protected: 2 kV HBM
Pinouts Same as TC426/27/28

簡介

TC4428屬于集成電路（IC）的柵極驅(qū)動器。由制造生產(chǎn)的TC4428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)。