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PMIC - Gate Drivers

Introduction

TC4428VMF is an N-channel MOSFET output driver that is designed for reliability in harsh environments. It is typically used in motor control applications as well as small appliances, cameras, and other consumer electronics. The device features a fast turn-on and off time, low voltage drop, and a wide operating temperature range for reliable performance in environments with large temperature fluctuations.

Features

• Fast turn-on and off time
• Low voltage drop
• Wide operating temperature range

Application Field

TC4428VMF is often used in industrial or consumer applications where fast turn-on and off time, low voltage drop, and low quiescent current are essential. This device is commonly used to drive motors, pumps, and small appliances like TVs, digital cameras, and printers. It can also be used for gate drive applications for more high powered MOSFETs such as those used in motor control and power conversion applications.

Working Principle

The TC4428VMF is a monolithic, two-stage, MOSFET gate driver with a built-in N-channel MOSFET. The device is triggered by a voltage applied to the gate and protected by an internal clamping diode, which prevents voltage reverse discharges caused by capacitive charging of the gate. The device also has built-in logic level shifters to convert CMOS logic levels to the voltage levels required for MOSFET gate drive. The device is able to deliver up to a 1A continuous output current, and is available in both low and high-side configurations.

The TC4428VMF has a low quiescent current, which reduces power consumption, and a wide operating temperature range, making it ideal for use in harsh environments. The device also provides high ESD protection for both the input and output signals, which helps protect against unexpected voltage surges. Additionally, the device has built-in fail safe circuitry that prevents catastrophic FET failures in the event of a sudden power loss.

Conclusion

The TC4428VMF is an N-channel MOSFET output driver that is designed for reliable performance in harsh environments. It is well suited for use in motor control, small appliance, and gate drive applications due to its fast turn-on and off time, low voltage drop, and wide operating temperature range. The device also offers protection against ESD and FET failure, making it a great choice for reliable operation in any environment.

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