IR2127

Current - Peak Output (Source, Sink):	250mA, 500mA
Base Part Number:	IR2127
Supplier Device Package:	8-DIP
Package / Case:	8-DIP (0.300", 7.62mm)
Mounting Type:	Through Hole
Operating Temperature:	-40°C ~ 150°C (TJ)
Rise / Fall Time (Typ):	80ns, 40ns
High Side Voltage - Max (Bootstrap):	600V
Input Type:	Non-Inverting
Series:	--
Logic Voltage - VIL, VIH:	0.8V, 3V
Voltage - Supply:	12 V ~ 20 V
Gate Type:	IGBT, N-Channel MOSFET
Number of Drivers:	1
Channel Type:	Single
Driven Configuration:	High-Side or Low-Side
Part Status:	Obsolete
Packaging:	Tube

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IR2127 Application Field and Working Principle The Integrated Circuit IR2127 is a high-voltage, high-speed power MOSFET and IGBT Driver with an robust fault protection circuit. It is used mainly in automotive and industrial applications but can be utilized in many other high-speed applications.IR2127 belongs to the family of Power Management ICs – Gate Drivers, also known as High-Side Switch Regulators. Generally, a Gate Driver is an integrated circuit that provides the necessary drive current to turn on and off power mosfets and IGBTs (insulated gate bipolar transaction). The Gate Driver helps to switch the device from a low to high current state, and vice versa. This switching is essential for controlling the power applied to a load such as a motor.An IR2127 is designed to provide a high-current and high-voltage driving capability for controlling the gate of high-sideand low-side external MOSFETs and IGBTs.The IR2127 contains an active undervoltage lockout circuit, a leading-edge blanking circuit, an output voltage clamp circuit, and an output current sensing circuit. This feature helps to reduce the current stress in turns on and off the external MOSFETs or IGBTs.The wide range of available supply voltage and the ability to be controlled via either logic level (low side) or PWM (partially-controlled timing)pins makes the IR2127 ideal for driving IGBTs and MOSFETs in all types of applications.The IR2127 consists of 2 input pins, 2 output pins and 2 ground pins, 1 Enable pin and 1 Fault pin. The Enable pin is used to control the gate-driver signals on and off, while the Fault pin is used to indicate if any irregularities occur in the system, like a short-circuited output. The 2 input pins are used to control the Gate voltage of the Load and are sensitive to fast logic-level signals up 1.25MHz. The output pins drive the gate signals, and the power is supplied through the ground pins.Another key capability of the IR2127 is its Over-voltage Protection Circuit. This is a feature that helps the system to limit the output voltage and protect itself against over-voltaging. This ensures that no damage is caused to the MOSFETs and IGBTs due to excessive voltages.In automotive applications, the IR2127 is used to drive the IGBTs of the powertrain, ensuring a reliable and efficient control of the vehicle. It is also used in industrial applications such as inverters, for precise and efficient switching of power stages.Today, with the development of nanotechnology, small and efficient IR2127s are available that are increasingly used in applications such as SMPS (switched-mode power supplies) for efficient power conversion. Its low-saturation voltage, high-current capability and compact footprint makes it an ideal choice for applications that require tight component placement, such as those mentioned above.In short, the IR2127 is an ideal device for driving high-power semiconductors such as MOSFETs and IGBTs. It has numerous features that make it suitable for a wide range of applications, such as automotive, industrial, and SMPS control. Its simple design, low on-state voltage drop and robust fault protection ensure that it is able to reliably handle high-current requirements in modern applications. It is also relatively low cost and can be easily integrated into various systems.

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