Description

The MIC4425YM is a highly reliable BiCMOS DMOS buffer/driver/MOSFET driver belonging to the Gate Drivers category of electronic components. It is an improved version of the MIC426/427/428 and a higher output current version of the MIC4426/4427/4428. It is a pin-compatible alternate of the MIC4423/4424 drivers and is designed to perform well in demanding electrical environments.

Specifications and features

• Reliable, low-power bipolar/CMOS/DMOS construction
• Latch-up protected to >500mA reverse current
• Logic input withstands swing to –5V
• High 3A-peak output current
• Wide 4.5V to 18V operating range
• Drives 1800pF capacitance in 25ns
• Short <40ns typical delay time
• Delay times consistent with supply voltage change
• Matched rise and fall times
• TTL logic input independent of supply voltage
• Low equivalent 6pF input capacitance
• Low supply current: 3.5mA with logic-1 input, 350µA with logic-0 input
• Low 3.5Ω typical output impedance
• Output voltage swings within 25mV of ground or VS.
• ‘426/7/8-, ‘1426/7/8-, ‘4426/7/8-compatible pinout
• Inverting, noninverting, and differential configurations.

Application Scenarios

The MIC4425YM can be used in a variety of applications such as motor control, power supplies, DC-DC converters, and half-bridge drivers. It can also be used in inverters, UPS, and switch-mode power supplies where reliability and high performance are needed.

Comparison

• Wide operating voltage range of 4.5V to 18V, making it suitable for a variety of applications
• High 3A-peak output current, enabling it to drive high capacitance loads quickly
• Latch-up protected to >500mA reverse current, ensuring reliable performance in demanding electrical environments
• Low output impedance of 3.5Ω typical, ensuring efficient power transfer
• Short <40ns typical delay time, ensuring accurate timing control

• The equivalent input capacitance of 6pF is not the lowest among similar models
• It is not suitable for applications that require higher output current, as it has a maximum output current of 3A-peak