MIC4426ZN

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The MIC4426ZN is a silicon gate driver designed with advanced RDS(on) featuring very low on-resistance and controlled rise and fall times. This driver can provide current to power various switching devices such as MOSFETs and IGBTs, making it an appropriate choice for applications requiring high-current and low-voltage control. The MIC4426ZN is capable of driving and fast switching between two output pins, which allows for a wide range of applications such as power factor correction and AC/DC converters. Additionally, this driver is highly suited for synchronous rectification applications.

Features

• Low on-resistance : RDS(ON) of 370mΩ (typ)
• Low input current : 2mA (typ)
• Source-drain voltage range 36V
• Wide operating temperature range : 0°C − 85°C
• Wide supply voltage range : 4.5V − 24V
• Output current : 5A peak, 1.5A continuous
• Gatedrive capability : 16V/500mA
• Fault protection : Over temperature, undervoltage lock-out, overtemperature shutdown
• Logic supply voltage : 5V
• Schmitt trigger : 8mA/36V input impedance

Applications

• Power factor correction
• AC/DC converters
• Server and telecom power supplies
• LCD back lighting
• White goods motor control
• LED lighting

Working Principle

The working principle of the MIC4426ZN is based on a voltage level shifter, which converts a low-voltage high-current digital signal from a logic controller into a high-voltage high-current signal to drive two output pins in a MOSFET or IGBT device. The MIC4426ZN is implemented using a low-on-resistance, two-high logic-level shifter with MOSFETs that is capable of driving up to 5A peak current to two load pins without a built-in timer. The device is optimized for high switching frequencies, which allows for applications such as frequency converters and motor control.

The MIC4426ZN features a low on-resistance (RDS(ON) of 370mΩ typ.), low input current (2mA typ.), wide source-drain voltage range (36V), wide operating temperature range (0°C−85°C), and wide supply voltage range (4.5V−24V). Additionally, the device includes fault protection features such as over temperature, undervoltage lock-out, and overtemperature shutdown, as well as a Schmitt trigger with 8mA/36V input impedance. Gate drive capability is 16V/500mA.

To summarize, the MIC4426ZN is a silicon gate driver designed to provide high-current and low-voltage control with low RDS(ON) and controlled rise and fall times. This product is well-suited for applications such as power factor correction, AC/DC converters, server and telecom power supplies, LCD back lighting, white goods motor control, and LED lighting. It features a wide operating temperature range, wide source-drain voltage range, wide supply voltage range, and fault protection features. Gate drive capability is 16V/500mA.

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