MIC44F19YMME-TR

Logic Voltage - VIL, VIH:	1.607V, 1.615V
Base Part Number:	MIC44F19
Supplier Device Package:	8-MSOP-EP
Package / Case:	8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C (TJ)
Rise / Fall Time (Typ):	10ns, 10ns
Input Type:	Inverting
Current - Peak Output (Source, Sink):	6A, 6A
Series:	--
Voltage - Supply:	4.5 V ~ 13.2 V
Gate Type:	P-Channel MOSFET
Number of Drivers:	1
Channel Type:	Single
Driven Configuration:	Low-Side
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction to MIC44F19YMME-TR Application Field and Working Principle

The MIC44F19YMME-TR is a specialized integrated circuit designed for use as a gate driver for power management circuits. The device is designed to provide high-voltage, high-current drive for MOSFETs and IGBTs. It has two independent gate drive outputs and is designed to provide a low-side gate driver with a single-rail supply and a high-side gate driver with an independent supply.

Overview

The MIC44F19YMME-TR is a fully integrated power MOSFET (PMOS) gate driver and is capable of driving both N-channel and P-channel FETs. It is a monolithic IC, which is built using a BiCMOS process and requires a single 3.3V supply voltage. It contains two independent gate driver outputs, each output capable of providing 1A of output current. The device also includes a voltage regulating circuit that ensures the gate voltage is kept within 6V of the supply voltage. The MIC44F19YMME-TR is designed to be used in power applications where high-current and high-voltage switching is required. It is ideal for use in AC/DC conversion, DC/DC conversion, high-power DC/AC inversion, high-current power switching for solar and 12V architectures, and various industrial and automotive applications. The output of the device is designed to drive the gate of the MOSFET to provide switching with very low on-resistance and very low switching losses. The device can switch MOSFETs with as low as 5Ω on resistance.

Internal Block Diagram and Architecture

The internal block diagram of the MIC44F19YMME-TR shows the various components of the device. The main components are the high-side and low-side gate drivers which provide the output power to the devices. The voltage regulating circuit provides an additional level of protection and ensures that the gate voltage is kept within 6V of the supply voltage. The device also includes an over-temperature protection circuit which shuts off the output in the event of an over-temperature situation.

Operating Modes and Functionality

The MIC44F19YMME-TR offers three operating modes: 1. Low-side Gate Driver Mode: This mode allows the MIC44F19YMME-TR to provide a low-side gate drive from a single rail power supply. 2. High-side Gate Driver Mode: This mode allows the MIC44F19YMME-TR to provide a high-side gate drive from an independent power supply. 3. Combination Mode: In this mode, the MIC44F19YMME-TR combines both the low-side and high-side gate drivers together and allows for the device to operate from a single power supply.

Features and Benefits

The MIC44F19YMME-TR provides several features and benefits in its operation:1. High-Voltage Creation: The device is capable of providing high-voltage gate drive with gate voltages from 5V to 20V. 2. Low-Current Consumption: The device only requires a single 3.3V supply voltage and consumes only 1mA of current. 3. High-Current Output: The device is capable of delivering 1A of gate drive current. 4. Low On-Resistance: The device is capable of driving MOSFETs with as low as 5 Ω on resistance. 5. Fast Switching: The device is capable of providing fast switching of up to 40MHz. 6. Over-Temperature Protection: The device is protected against over-temperature conditions using an over-temperature protection circuit.

Conclusion

The MIC44F19YMME-TR is a specialized integrated circuit designed to provide high-voltage, high-current gate drive for power management circuits. It is suitable for use in AC/DC and DC/DC power applications, high-power DC/AC inversion, and various industrial and automotive applications. It is capable of providing gate voltages from 5V to 20V and has two independent gate drive outputs which can deliver 1A of current. The device offers fast switching of up to 40Mhz and features an over-temperature protection circuit which ensures that the device is protected from over-temperature conditions.

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