UCC27524AQDGNRQ1

Logic Voltage - VIL, VIH:	1V, 2.3V
Base Part Number:	UCC27524
Supplier Device Package:	8-MSOP-PowerPad
Package / Case:	8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 140°C (TJ)
Rise / Fall Time (Typ):	7ns, 6ns
Input Type:	Non-Inverting
Current - Peak Output (Source, Sink):	5A, 5A
Series:	Automotive, AEC-Q100
Voltage - Supply:	4.5 V ~ 18 V
Gate Type:	IGBT, N-Channel MOSFET
Number of Drivers:	2
Channel Type:	Independent
Driven Configuration:	Low-Side
Part Status:	Not For New Designs
Packaging:	Tape & Reel (TR)

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Introduction

The UCC27524AQDGNRQ1 is an integrated circuit designed specifically as a gate driver. With a compact form factor, it is intended to drive medium and low voltage MOSFETs and IGBTs. It is an ideal solution for applications that require highly efficient, low power dissipation gate drive solutions.

Applications

The UCC27524AQDGNRQ1 can be used in a variety of applications including motor control, solar inverters, LED lighting, inverters, power supplies, motor drives, MOSFET/IGBT gate drivers, digital amplification, and motor control. This IC provides a high quality gate drive signal to ensure precisely timed Gate-Source and Gate-Drain switching of a MOSFET or IGBT, which is important for the overall system performance. It can be used in half-bridge and full-bridge applications, and its bidirectional control feature allows it to drive both N-channel and P-channel devices.Other applications include circuit protection, high voltage/current control, backlighting, DC/DC conversion, and hot-swapping. The UCC27524AQDGNRQ1 provides adjustable overdrive, programmable dead-time, adjustable under-voltage lockout, and fault protection features.

Features

The UCC27524AQDGNRQ1 features a high- and low-side, floating gate driver with complementary outputs. Its ultra-low level output (active low) and wide compliance range allow this device to be used in various voltage applications including 12V, 24V and up to 60V ratings. Its integrated logic jumpers offer additional flexibility and allow programming of the fault pin, optional reverse polarity protection, and an adjustable slew rate. It also offers adaptive shoot-through protection with programmable dead-time, adjustable overdrive voltage, and programmable under-voltage lockout. With its overload protection feature, the device can protect itself and the system in case of an overload, thus preventing incorrect operation and possible damage. The UCC27524AQDGNRQ1 is also a highly integrated device and includes features such as thermal shutoff, low quiescent current and low gate threshold voltage. It also provides peak output current of up to 5A, typical output voltage of 5.5V and a typical rise/fall time of 15 ns for fast response times.

Working principle

The UCC27524AQDGNRQ1 is a high-efficiency gate driver with complementary outputs, meaning it has two outputs: one for the low-side high-voltage MOSFET, and one for the high-side low-voltage MOSFET. It uses a simple logic input to generate a gate driver signal with adjustable neg. (NEG) and pos. (POS) voltages to drive one low-side/high-side MOSFET pair.The UCC27524AQDGNRQ1 works by monitoring the logic input and regulating the gate signal accordingly. At the rising edge of the logic input, the POS output is held low to turn off the low-side MOSFET and the NEG output is held high to turn on the high-side MOSFET. At the same time, the threshold voltage of the two MOSFETS is set by the NEG and POS voltage levels supplied to the IC.In order to keep both MOSFETs in a conductive state when the logic signal is low, the POS output is held high and the NEG output is held low. This maintains the same threshold voltage level on the MOSFETs, allowing them to remain in a conductive state. The UCC27524AQDGNRQ1 also has an adjustable dead-time feature which allows for a minimum turn-off time of one nanosecond, thereby limiting shoot-through currents and reducing MOSFET switching losses.

Conclusion

The UCC27524AQDGNRQ1 is a compact, high-efficiency gate driver that is well suited for driving low- and medium-voltage MOSFETs and IGBTs. It features a complementary output driver with adjustable overdrive, programmable dead-time, adjustable under-voltage lockout, overload protection, and thermal shutoff. It also offers an adjustable gate threshold voltage and a peak output current of up to 5A, making it an ideal choice for many applications such as motor control, solar inverters, LED lighting, inverters, power supplies, motor drives, and more.

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