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UCC27524D

Dual 5A low-side gate driver, non-inverting, 17ns, -5V input, SOIC-8, enable pins

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Pieza del fabricante：

UCC27524D

Paquete：

SOIC-8 (4.90 x 3.91 x 1.50 mm)

Marca：

Categorías de productos：

Circuitos integrados de controladores de puerta, Circuitos integrados IC

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Descripción

Productos

The UCC27524D from Texas Instruments is a dual 5A high-speed low-side gate driver with non-inverting inputs in a SOIC-8 package. With 17ns propagation delay and -5V input voltage capability, it drives MOSFETs and IGBTs in power supply and motor drive applications.

Especificaciones

Peak Output Current	5 A (source and sink)
Canales	2 (dual non-inverting)
Retardo de propagación	17 ns (typical)
Rise/Fall Time	6 ns / 10 ns (typical)
Tensión de alimentación	4.5 V to 18 V
Delay Matching	1 ns (typical between channels)
Temperatura de funcionamiento	-40C to +150C

Características

5A peak source and sink current for large gate drives
17ns typical propagation delay for high-frequency switching
1ns channel-to-channel delay matching for synchronous rectification
TTL/CMOS compatible input thresholds independent of VDD
Independent enable pins for each channel
-5V negative input voltage handling for robustness

Aplicaciones

Switch-mode power supply gate drive
DC-DC converter synchronous rectification
Motor drive and solar inverter switching
GaN and SiC wide-bandgap device drive

Introducción del producto:UCC27524D Presentación del producto

The UCC27524D from Texas Instruments is a dual-channel, high-speed, low-side gate driver in a SOIC-8 package. Each channel provides 5A peak source and 5A peak sink drive current for effectively driving MOSFET and IGBT power switches. The device features dual non-inverting inputs with 17ns typical propagation delay and 1ns channel-to-channel delay matching, making it ideal for synchronous rectification and dual-switch applications requiring critical timing. The input pin thresholds are based on TTL and CMOS compatible low-voltage logic, which is fixed and independent of the VDD supply voltage. Wide hysteresis between high and low thresholds provides excellent noise immunity. The UCC27524 variant adds the ability to handle -5V directly at the input pins for increased robustness in noisy environments. Independent enable pins (ENA, ENB) allow each channel to be separately controlled. The outputs are held low during VDD UVLO and when inputs are floating, ensuring glitch-free operation during power-up and power-down.

Principio de funcionamiento:UCC27524D Principio de funcionamiento

The UCC27524D uses a high-speed CMOS output stage with anti-shoot-through circuitry. (1) Input Stage: TTL/CMOS compatible input thresholds (VIH = 2.0V, VIL = 0.8V) are fixed and independent of VDD. Internal pull-up and pull-down resistors ensure outputs are held low when inputs float. The -5V input handling capability uses ESD clamping structures rated for sustained negative voltage. (2) Enable: Independent ENA and ENB pins are internally pulled up to VDD, enabling both channels by default. Driving ENx low disables the corresponding output. This allows UCC27524 to be pin-compatible with older drivers (UCC27324). (3) Output Stage: A hybrid pullup structure uses a PMOS in parallel with a briefly-activated NMOS boost transistor. During the low-to-high transition, both transistors conduct briefly, providing extra peak sourcing current during the Miller plateau. The pulldown uses a single NMOS. (4) Anti-Shoot-Through: Internal timing ensures the pullup and pulldown transistors never conduct simultaneously, minimizing quiescent current.

Descripción de la clavija:UCC27524D Definición y funciones de las clavijas

Pin	Nombre	Tipo	Función
1	ENA	Entrada	Channel A enable (active high, internal pull-up)
2	INA	Entrada	Channel A non-inverting input
3	GND	Suelo	Suelo
4	INB	Entrada	Channel B non-inverting input
5	OUTB	Salida	Channel B output (5A peak)
6	VDD	Potencia	Supply (4.5-18V)
7	OUTA	Salida	Channel A output (5A peak)
8	ENB	Entrada	Channel B enable (active high, internal pull-up)

Application Scenarios:In which products and applications isUCC27524D usado

Switch-mode power supply gate drive with 5A peak current
DC-DC converter synchronous rectification with 1ns delay matching
Motor drive and solar inverter switching at 17ns propagation delay
GaN wide-bandgap device drive with -5V input robustness

Alternative Models:What chips are recommended as replacements for UCC27524D

Fabricante	Número de pieza	Paquete	Notas
TI	UCC27524AD	SOIC-8	Same with enhanced ESD
TI	UCC27324D	SOIC-8	Previous gen, 4A, no enable
Infineon	2ED2410-EM	DSO-14	Dual 10A low-side driver
onsemi	NCP5181DR2G	SOIC-8	Half-bridge, similar class