UC2705DG4

Logic Voltage - VIL, VIH:	0.8V, 2.2V
Base Part Number:	UC2705
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-25°C ~ 85°C (TA)
Rise / Fall Time (Typ):	60ns, 60ns
Input Type:	Inverting, Non-Inverting
Current - Peak Output (Source, Sink):	1.5A, 1.5A
Series:	--
Voltage - Supply:	5 V ~ 40 V
Gate Type:	N-Channel MOSFET
Number of Drivers:	1
Channel Type:	Single
Driven Configuration:	Low-Side
Part Status:	Active
Packaging:	Tube

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IntroductionPMIC - Gate Drivers are the commonly used type of power integrated circuits used in many electronic applications. The UC2705DG4 is a popular part of this family. It is a high-performance MOSFET and IGBT gate driver, designed to be responsive and robust against various thermal, stress and electro-magnetic parameters. The UC2705DG4 is an efficient and optimum solutions for driving high power MOSFET or IGBT modules at 48V. Manufactured in a 16-pin SOIC package, this versatile part has a wide range of applications, suitable for LED lighting, motor control, and a variety of other power switching applications. FeaturesThe UC2705DG4 is especially designed to reduce dynamic power dissipation, and to reduce stress on the MOSFET and IGBT gate oxide. It offers up to 4A peak and 2A continuous drive capability. It\'s also capable of driving 200V to 600V gate voltages with a rating of maximum 15A turn on/turn off current. The part also has efficient GATE pull down of 30K Ohms, thermal shutdown, and fault status flag features which make it an extremely safe part.This part is supplied with a wide operating temperature range from -40°C to 125°C with a few exceptions. It is possible to use the part from -40°C to 105°C with an input voltage to the gate up to 54V, and from -40°C to 80°C with input voltage up to 42V. These temperature ranges are ideal for industrial and automotive applications. Working PrincipleAs already stated above, the UC2705DG4 is a MOSFET and IGBT driver. It enables low voltage operation and eliminates the need for level shifting when driving higher voltage power transistors. This is especially useful for switching applications which require both high-switching speed and low losses. The UC2705DG4 has an overvoltage protection which helps to avoid damage to the power transistor in case of overvoltage events. The part also has a dual power supply operating from standard 5V and 15V voltage ranges. The part has two internal high-side protection circuits. One of these resembles a Schmitt trigger which we can adjust to specific switching thresholds, while the other is a fast response low-side on/off circuit. ConclusionThe UC2705DG4 is a high performance MOSFET and IGBT driver. It has excellent switching times and robust thermal, stress, and electro-magnetic parameters. This part is suitable for a wide range of applications, including LED lighting, motor control, and a variety of other power switching applications. It is a highly efficient solution for driving high power MOSFET and IGBT modules at 48V.

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