Allicdata Part #: | MIC4423CN-ND |
Manufacturer Part#: |
MIC4423CN |
Price: | $ 0.00 |
Product Category: | Integrated Circuits (ICs) |
Manufacturer: | Microchip Technology |
Short Description: | IC DRIVER MOSFET 3A DUAL 8DIP |
More Detail: | Low-Side Gate Driver IC Inverting 8-PDIP |
DataSheet: | MIC4423CN Datasheet/PDF |
Quantity: | 1000 |
Logic Voltage - VIL, VIH: | 0.8V, 2.4V |
Base Part Number: | MIC4423 |
Supplier Device Package: | 8-PDIP |
Package / Case: | 8-DIP (0.300", 7.62mm) |
Mounting Type: | Through Hole |
Operating Temperature: | 0°C ~ 150°C (TJ) |
Rise / Fall Time (Typ): | 28ns, 32ns |
Input Type: | Inverting |
Current - Peak Output (Source, Sink): | 3A, 3A |
Series: | -- |
Voltage - Supply: | 4.5 V ~ 18 V |
Gate Type: | N-Channel, P-Channel MOSFET |
Number of Drivers: | 2 |
Channel Type: | Independent |
Driven Configuration: | Low-Side |
Part Status: | Obsolete |
Packaging: | Tube |
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The MIC4423CN is a precision bidirectional gate driver, suitable for driving a variety of low side and high side power transistors in power management applications. The device is designed to interface between a logic level controller, such as a microcontroller (MCU) or FPGA, and power MOSFETs, Bipolar Junction Transistors (BJTs), and other logic level switches used in Power Management Applications. It is specifically designed to drive the low sides of power MOSFETs, allowing them to be turned both on and off rapidly. This makes it an ideal choice for high frequency applications like switching DC/DC converters, buck-boost converters, and linear regulators.
MIC4423CN Application Fields
The MIC4423CN is commonly used in power management applications, where it takes the logic signal from an MCU or FPGA and generates the gate drive signal necessary to control power MOSFETs and other power switches. It is also used in motor control applications such as brushless DC motor controllers and BLDC motor drivers. It is particularly suitable for applications where low RDS_ON values, fast power supply turn on/off times, or pulse-width modulation (PWM) control is needed. In addition, due to its control logic level, it is ideal for battery powered and other low-voltage applications.
MIC4423CN Key Features
- Input Logic Level: 2V to 5.5V
- High Side Output: 4.5V to 34V
- Low Side Output: 0V to 17V
- RDS_ON: 480mOhm
- Output Slew Rate Control (OCSW)
- Inductor Current Limiting
- Output Drivers: Low Side and High Side
- Built-in Bootstrap Diode
MIC4423CN Working Principle
The MIC4423CN is a bidirectional driver, which means it can drive both the low side and the high side of a power MOSFET. It takes logic input from a microcontroller or FPGA and produces a gate drive signal that is used to control the power MOSFETs. The device has two main components. The internal power MOSFETs (for low side and high side) and the logic input circuit. The power MOSFETs are connected in series and in parallel, with the high side MOSFET connected to the output of the driver. The logic input is connected to the enable pins on both sides of the MOSFETs. When the enable pins are low, both MOSFETs are off. When the enable pins are high, the MOSFETs are turned on and the high side MOSFET is connected to the output of the driver.
When the enable pins are low, the low side MOSFET is turned on, which then turns on the high side MOSFET, thus connecting the output of the driver to the output of the low side MOSFET. This allows the MIC4423CN to produce a high side output voltage of up to 34V. The output voltage is regulated by an inductor current limit circuit and a slew rate control circuit. The output current can also be limited by connection of an external load.
The MIC4423CN can also be used to drive the power MOSFETs of linear voltage regulators. In this case, the low side MOSFET is used to regulate the output voltage while the high side MOSFET is controlled by the controller to turn on and off. This eliminates the need for a separate loading circuit, thereby simplifying the power management design.
The MIC4423CN is a great choice for power management applications requiring low RDS_ON values, fast power supply turn on/off times, and the ability to control the output voltage using pulse-width modulation. It is also suitable for battery powered and other low-voltage applications.
The specific data is subject to PDF, and the above content is for reference
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