UCC27424MDGNREP

Logic Voltage - VIL, VIH:	1V, 2V
Base Part Number:	UCC27424
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:	-55°C ~ 125°C (TJ)
Rise / Fall Time (Typ):	20ns, 15ns
Input Type:	Non-Inverting
Current - Peak Output (Source, Sink):	4A, 4A
Series:	--
Voltage - Supply:	4 V ~ 15 V
Gate Type:	N-Channel, P-Channel MOSFET
Number of Drivers:	2
Channel Type:	Independent
Driven Configuration:	Low-Side
Part Status:	Active
Packaging:	Tape & Reel (TR)

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PMIC - Gate Drivers have been widely used in power supply design. They play an important role in controlling the power flow in an electronic device or circuit. UCC27424MDGNREP is the latest of their kind, a universal continuous-mode non-isolated synchronous buck regulator, designed for low-noise, low-power on-chip supply. It is specifically targeted at handheld and mobile applications.[1]

The UCC27424MDGNREP integrates a modern PFC-type control, with a dual-phase operation, high-efficiency operation, and very high-efficiency standby mode. It has a wide range of features, such as power sequencing, voltage regulation, current limiting, and output inrush protection. In addition, it contains Device Fault Detection, which helps achieve robust power supply design. UCC27424MDGNREP also provides a highly efficient and reliable solution for zero voltage switching (ZVS) and is suitable for a variety of applications from handheld to servers.

The UCC27424MDGNREP regulates performance of a Buck Converter by setting two outputs (Vout1 and Vout2) with two conventional voltage feedback devices.Mode control and regulation are both achieved by the current flowing through an internal FET. The Mode Control Block (MCB) receives a signal from the Feedback Control Block (FCB), compares it with the desired value, and then adjusts the duty cycle of the internal FET accordingly. The resulting duty cycle defines the operating mode of the regulator, which can be selected among several predefined ones such as Constant Voltage, Constant Current, and Constant Power.

The UCC27424MDGNREP provides an array of on chip diagnostic and protection features such as over and under voltage protection, thermal warning, under-voltage lockout and short-circuit protection. The UCC27424MDGNREP also monitors the switching channel current, active channel voltage, and voltage across the current sense resistor, to provide a sense of fault detections. This enables the controller to be highly reliable, even in noisy and harsh industrial environments.

The UCC27424MDGNREP is a highly efficient and reliable gate driver for a variety of applications. It can be used for driving both synchronous and conventional buck converters and support a wide range of output power from a few MHz to 10 MHz. The UCC27424MDGNREP is capable of providing excellent performance with a noise-free environment and an ultra fast switch response time.[2]

In conclusion, UCC27424MDGNREP is a universal continuous-mode non-isolated synchronous buck regulator, designed to provide a highly efficient and reliable gate driver for a variety of applications. It has a wide range of features and protection functions, which makes it an ideal choice for power supply design. UCC27424MDGNREP provides a robust and reliable solution for zero voltage switching and provides outstanding performance in high frequency and low noise applications.

References:[1] UCC27424MDGNREP Datasheet, Texas Instruments Inc., https://www.ti.com/lit/ds/symlink/ucc27424mdgnrep.pdf[2] Rhan David Hiller, “Design Considerations for Zero Voltage Switching (ZVS) Pulse Width Modulators”, Texas Instruments Inc., https://www.ti.com/lit/an/slyt819/slyt819.pdf

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