RD3U040CNTL1 Discrete Semiconductor Products

Vgs(th) (Max) @ Id:	5.5V @ 1mA
Package / Case:	TO-252-3, DPak (2 Leads + Tab), SC-63
Supplier Device Package:	TO-252
Mounting Type:	Surface Mount
Operating Temperature:	-55°C ~ 150°C (TJ)
Power Dissipation (Max):	29W (Tc)
FET Feature:	--
Input Capacitance (Ciss) (Max) @ Vds:	350pF @ 25V
Vgs (Max):	±30V
Gate Charge (Qg) (Max) @ Vgs:	8.5nC @ 10V
Series:	--
Rds On (Max) @ Id, Vgs:	1.3 Ohm @ 2A, 10V
Drive Voltage (Max Rds On, Min Rds On):	10V
Current - Continuous Drain (Id) @ 25°C:	4A (Tc)
Drain to Source Voltage (Vdss):	250V
Technology:	MOSFET (Metal Oxide)
FET Type:	N-Channel
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

The RD3U040CNTL1 is a 3-Phase Gate Driver with integrated MOSFETs, developed for high current and high reliability applications. It is a Power MOSFET gate driver IC with three high-side drivers and three low-side drivers. It features soft turn-on, current limiting, thermal shutdown, short-circuit protection and under-voltage lock-out. The device is ideally suited for motor control, power conversion and high power motor drives applications. This application note explains the various features of RD3U040CNTL1, its operational principle and application field.

Working Principle

RD3U040CNTL1 works on the principle of three-phase half-bridge control and provides a robust, reliable and stable solution for controlling large power applications. The devices can drive up to 600V and power MOSFETs. The device is designed to provide high-performance switching and improved efficiency. RD3U040CNTL1 features integrated features such as current limit and thermal shutdown, which provide protection against overloads and thermal overloads.The RD3U040CNTL1 includes a set of 6 MOSFETs. There are three high-side switches (HS1, HS2 and HS3) and three low-side switches (LS1, LS2, and LS3). The HS and LS switches are connected to a common source and ground, respectively. The high-side switches are connected to the power MOSFET gates and the low-side switches are connected to the MOSFET sources. The RD3U040CNTL1 operates in two modes: shutdown and drive. In the shutdown mode, the inputs on the low and high sides are enabled and the outputs are disabled. In the drive mode, the inputs on the low and high sides are enabled, and the outputs are enabled according to the input signals. The RD3U040CNTL1 also features a fast current limit circuitry that restricts current flow to protect the MOSFETS from over-current, excessive power loss and device malfunction. The current limiter monitors and controls the current flow in the power stage in order to protect the MOSFETs from damage.

Applications

The RD3U040CNTL1 is ideal for power conversion and motor control applications. It is suitable for 3-phase motor drives, LED lighting, solar inverters, UPS systems, industrial automation and embedded control applications.The integrated features of RD3U040CNTL1 such as current limit, thermal protection and under-voltage lock-out make it an ideal choice for high power applications. The device’s integrated circuit provides excellent protection against various types of hazards. It can be used to drive up to 600V power MOSFETs, making it ideal for large power applications. The RD3U040CNTL1 can also be used in motor control applications either as a motor driving or system monitoring device. The drive outputs can be used to control the speed and direction of a motor while the current limit, thermal protection and under-voltage lock-out features provide built-in protection against various hazards.

Conclusion

The RD3U040CNTL1 is a 3-phase gate driver with integrated MOSFETs. It is designed for high current and reliability applications and is an ideal choice for power converters, motor control applications, LED lighting, solar inverters, UPS systems and other industrial automation and embedded control applications. The device features soft turn-on, current limiting, thermal shutdown, short-circuit protection and under-voltage lock-out. The current limiter monitors and controls the current flow in the power stage in order to protect the MOSFETs from damage. Overall, the RD3U040CNTL1 is an ideal choice for applications requiring reliable and robust 3-phase motor drive operation.

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