Texas Instruments UCC27424QDGNRQ1

Overview

UCC27424QDGNRQ1 from Texas Instruments is a dual noninverting low-side MOSFET driver for automotive-grade power stages, delivering ±4-A peak output current, 20-ns rise/15-ns fall times (1.8-nF load), and 4-V to 15-V supply operation. It integrates independent enable inputs (ENBA/ENBB) and operates across –40°C to +125°C ambient, targeting DC-DC converters and motor controllers.

For engineers reviewing the UCC27424QDGNRQ1 datasheet, UCC27424QDGNRQ1 pinout, UCC27424QDGNRQ1 application, or UCC27424QDGNRQ1 equivalent, key selection criteria include dual noninverting logic configuration, MSOP PowerPAD thermal performance (R_θJA = 63°C/W), AEC-Q100 Grade 1 qualification, and bipolar-CMOS hybrid output stage optimized for Miller plateau drive.

Technical Context

The UCC27424QDGNRQ1 implements a dual noninverting driver architecture with separate enable inputs per channel (pins 1 and 8), internally pulled up to VDD via 100-kΩ resistors. Its hybrid bipolar-MOSFET output stage delivers high current precisely at the MOSFET Miller threshold region, minimizing shoot-through risk while enabling efficient sourcing/sinking down to low supply voltages.

Input thresholds are TTL/CMOS-compatible (VIH = 1.6–2.5 V, VIL = 0.8–1.5 V) and voltage-independent across 4–15 V VDD. Propagation delays are asymmetric: 35 ns (rising input) and 25 ns (falling input), with enable-to-output delays of 30–60 ns (t_D3) and 100–150 ns (t_D4), reflecting dedicated enable path timing.

Key Specifications

Pinout & Package

UCC27424QDGNRQ1 uses the thermally enhanced 8-pin MSOP package with PowerPAD (DGN), measuring 3.00 mm × 3.00 mm. The exposed thermal pad is electrically connected to GND and must be soldered to PCB copper for optimal thermal performance.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual low-side gate driver applications.

Compared with UCC27424QDGNRQ1, UCC27423QDGNRQ1 offers identical thermal and drive performance but inverted logic - suitable for complementary drive schemes, while LM5113QDGSRQ1 trades dual-channel flexibility for higher single-channel speed and integrated bootstrap support in half-bridge designs.

Availability

UCC27424QDGNRQ1 is available at Aetrix Electronics and suitable for automotive power conversion, motor control, and Class D audio amplification requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for UCC27424QDGNRQ1 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and automotive ICs, with over 50 years of power management innovation.

The UCC2742x-Q1 product line delivers high-speed, AEC-Q100-qualified gate drivers for automotive power stages - designed specifically for reliability-critical 12-V, 48-V, and hybrid-electric vehicle systems.

FAQ

What is the logic configuration of UCC27424QDGNRQ1?

UCC27424QDGNRQ1 is a dual noninverting low-side MOSFET driver: OUTA follows INA, and OUTB follows INB. This matches standard PWM controller outputs without requiring external inverters. Its counterpart UCC27423QDGNRQ1 provides dual inverting logic, while UCC27425QDGNRQ1 offers mixed inverting/noninverting channels.

Does UCC27424QDGNRQ1 support parallel operation of its outputs?

Yes, UCC27424QDGNRQ1 supports paralleling OUTA and OUTB to deliver ±8-A peak current. To do so, connect INA to INB and OUTA to OUTB externally. This configuration maintains matched timing and doubles gate drive capability for high-Qg MOSFETs or IGBTs without skew or imbalance.

What is the purpose of ENBA and ENBB on UCC27424QDGNRQ1?

ENBA (pin 1) and ENBB (pin 8) are independent active-high enable inputs that force their respective outputs low when deasserted. Internally pulled up to VDD (100 kΩ), they allow hardware-level per-channel shutdown - critical for fault containment in ASIL-B automotive systems and phase-controlled power stages.

How does the hybrid bipolar-CMOS output stage benefit UCC27424QDGNRQ1 performance?

The hybrid output stage combines bipolar transistors (for high-current Miller region drive) and MOSFETs (for low R_DS(on) conduction) in parallel. This delivers ±4-A precisely where MOSFETs draw maximum gate current (≈4–6 V), reducing total switching energy by up to 22% compared to conventional CMOS-only drivers.

Is UCC27424QDGNRQ1 compatible with 3.3-V logic inputs?

Yes, UCC27424QDGNRQ1 accepts 3.3-V logic inputs reliably: VIH(min) = 1.6 V and VIL(max) = 1.5 V across 4–15 V VDD, providing >0.5 V noise margin. Inputs are TTL/CMOS-compatible and voltage-independent - no level shifters needed when interfacing with microcontrollers or digital isolators.