MIC4467CWM TR

Logic Voltage - VIL, VIH:	0.8V, 2.4V
Base Part Number:	MIC4467
Supplier Device Package:	16-SOIC
Package / Case:	16-SOIC (0.295", 7.50mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	0°C ~ 70°C (TA)
Rise / Fall Time (Typ):	14ns, 13ns
Input Type:	Inverting
Current - Peak Output (Source, Sink):	1.2A, 1.2A
Series:	--
Voltage - Supply:	4.5 V ~ 18 V
Gate Type:	N-Channel, P-Channel MOSFET
Number of Drivers:	4
Channel Type:	Independent
Driven Configuration:	Low-Side
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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Introduction

The MIC4467CWM TR is a high-speed, low-side gate driver used in switch-mode power supplies and other power management applications. It offers excellent thermal performance, high-speed switching, and low power dissipation. This application field and working principle will be discussed in detail in this section.

Application Field

The MIC4467CWM TR is suitable for driving N-Channel MOSFETs and IGBTs. It is capable of up to 6A of output current, while being able to withstand up to 12V of drain-to-source voltage. This allows it to be used in various power management applications, such as switch-mode power supplies, mobile device chargers, and power conversion systems. The gate driver can also be used for high current pulsed applications, due to its low propagation delay and fast rise and fall times. This makes the MIC4467CWM TR ideal for applications such as ignition systems and medical equipment. The MIC4467CWM TR can also be used in automotive applications due to its input protection devices, allowing it to withstand up to 30V of input voltage. This makes it ideal for applications where the input voltage may exceed the power supply voltage, such as automotive engines.

Working Principle

The MIC4467CWM TR is designed to drive N-Channel MOSFETs and IGBTs. It has an input that is connected to a logic signal, such as a 3.3V or 5V logic signal. When the input signal is triggered, the driver will quickly charge the gate of the FET or IGBT, which will cause the FET or IGBT to turn on. The MIC4467CWM TR also features an On Resistance (RONI) pin that can be used to set the output voltage level. The RONI pin is connected to the input signal and is used to set the voltage level of the output signal. This can be used to optimize the switching performance of the FETs and IGBTs. The driver also has an Enable pin, which can be used to turn the driver off. This can be used to reduce the current consumption during idle conditions.

Conclusion

The MIC4467CWM TR is a high-speed, low-side gate driver used in switch-mode power supplies and other power management applications. It offers excellent thermal performance, high-speed switching, and low power dissipation. Its input protection devices make it suitable for applications where the input voltage may exceed the power supply voltage, such as automotive engines. The RONI pin can be used to optimize the switching performance of the FETs and IGBTs, while the Enable pin can be used to reduce the current consumption during idle conditions.

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