MIC4428中文资料Dual 1.5 A MOSFET Gate Driver数据手册Microchip规格书

描述 Description

The MIC4426/4427/4428 family are highly-reliable dual low-side MOSFET gate drivers fabricated on a BiCMOS/DMOS process for low power consumption and high efficiency. These drivers translate TTL or CMOS input logic levels to output voltage levels that swing within 25 mV of the positive supply or ground. Comparable bipolar devices are capable of swinging only to within 1V of the supply. The MIC4426/7/8 is available in three configurations: dual inverting, dual noninverting, and one inverting plus one noninverting output. The MIC4426/4427/4428 are pin-compatible replacements for the MIC426/427/428 and MIC1426/1427/1428 with improved electrical performance and rugged design. They can withstand up to 500 mA of reverse current (either polarity) without latching and up to 5 V noise spikes (either polarity) on ground pins. Primarily intended for driving power MOSFETs, MIC4426/7/8 gate drivers are suitable for driving other loads (capacitive, resistive, or inductive) which require low-impedance, high peak current, and fast switching time. Other applications include driving heavily loaded clock lines, coaxial cables, or piezoelectric transducers. The only load limitation is that total driver power dissipation must not exceed the limits of the package. Note See MIC4126/4127/4128 for high power and narrow pulse applications

特性 Features

• Bipolar/CMOS/DMOS construction
• Latch-up protection to > 500 mA reverse current
• 1.5 A peak output current
• 4.5 V to 18 V operating range
• Low quiescent supply current
• 4 mA at logic 1 input
• 400 µA at logic 0 input
• Switches 1000 pF in 25ns
• Matched rise and rall times
• 7 Ω output impedance
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简介

MIC4428属于集成电路（IC）的栅极驱动器。由Microchip制造生产的MIC4428栅极驱动器栅极驱动器电源管理集成电路 (PMIC) 可用于提供隔离、放大、参考位移、自举或其他必要功能，这些功能可将来自电源转换应用中控制设备的信号连接到电源被控制通过的半导体设备（通常为 FET 或 IGBT）。任何特定设备提供的确切功能各不相同，但与它适合驱动的半导体配置相关。