Texas Instruments UCC27425QDRQ1

Overview

UCC27425QDRQ1 from Texas Instruments is an automotive-grade dual low-side MOSFET driver with one inverting and one noninverting output channel, ±4-A peak drive current, 20-ns rise / 15-ns fall time (1.8-nF load), 4–15-V supply range, and AEC-Q100 Grade 1 qualification (–40°C to +125°C ambient). It enables precise gate control in high-frequency synchronous buck converters and motor half-bridges.

For engineers reviewing the UCC27425QDRQ1 datasheet, UCC27425QDRQ1 pinout, UCC27425QDRQ1 application, or UCC27425QDRQ1 equivalent, key selection criteria include dual-channel logic asymmetry (INVA/NOINVA), independent enable pins (ENBA/ENBB), Miller-region current delivery, thermal performance in SOIC-8, and automotive reliability validation.

Technical Context

The UCC27425QDRQ1 implements a bipolar-MOSFET hybrid output stage that delivers ±4-A peak current specifically during the MOSFET Miller plateau transition-minimizing switching losses. Its input stage accepts TTL/CMOS logic across full VDD range (4–15 V) with hysteresis and reverse-current tolerance up to 500 mA.

Each channel features dedicated active-high enable (ENBA/ENBB), internally pulled up to VDD via 100-kΩ resistors; disabling forces output low regardless of input state. The device supports paralleling of OUTA/OUTB for single-output 8-A drive, and operates with shoot-through current inherently minimized by architecture-not external timing control.

Key Specifications

Pinout & Package

UCC27425QDRQ1 is packaged in an 8-pin SOIC (D package), 4.90 mm × 3.91 mm body size, with GND on Pin 3 and PowerPAD™ thermal pad connected internally to substrate ground.

Key Features

Applications

Equivalent & Alternatives

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

Compared with UCC27424QDRQ1 and LM5113QDGSRQ1, UCC27425QDRQ1 uniquely provides mixed logic polarity in a pin-compatible SOIC-8 package-enabling half-bridge drive without layout changes or added components, while maintaining AEC-Q100 Grade 1 reliability and Miller-optimized current delivery.

Availability

UCC27425QDRQ1 is available at Aetrix Electronics and suitable for automotive power conversion, motor control, and Class D audio applications requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant sourcing.

Supply support for UCC27425QDRQ1 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 company specializing in analog, embedded processing, and automotive electronics with over 50 years of power management leadership.

The UCC2742x-Q1 product line was designed specifically for robust, high-speed gate driving in automotive powertrain and body electronics-emphasizing Miller-region current delivery, thermal resilience, and AEC-Q100 compliance from wafer to package.

FAQ

What logic configuration does UCC27425QDRQ1 implement?

UCC27425QDRQ1 implements one inverting output (OUTA) and one noninverting output (OUTB), enabling direct half-bridge gate drive without external inverters. This differs from UCC27423QDRQ1 (dual inverting) and UCC27424QDRQ1 (dual noninverting). The inverting channel drives P-channel MOSFETs, while the noninverting channel drives N-channel devices - a key differentiator confirmed in TI's Device Comparison Table and Pin Configuration section.

Does UCC27425QDRQ1 support paralleling of its outputs?

Yes, UCC27425QDRQ1 supports paralleling of OUTA and OUTB to achieve up to ±8-A peak drive current for single-output applications. As documented in Section 7.3.4, this is accomplished by connecting INA and INB together and OUTA and OUTB together - with both ENBA and ENBB asserted high. The SOIC-8 package's thermal resistance (RθJA = 112.6°C/W) must be considered under sustained 8-A conditions.

What is the function of ENBA and ENBB on UCC27425QDRQ1?

ENBA (Pin 1) and ENBB (Pin 8) are independent active-high enable inputs for OUTA and OUTB, respectively. Internally pulled up to VDD via 100-kΩ resistors, they force the corresponding output low when driven low - regardless of input state. This enables per-channel fault shutdown, staggered startup, or dead-time extension without external logic, as specified in Table 5-1 and Section 7.3.3.

Is UCC27425QDRQ1 qualified for automotive use?

Yes, UCC27425QDRQ1 is AEC-Q100 qualified for Automotive Applications (Grade 1), with validated operating ambient temperature range of –40°C to +125°C, HBM ESD classification Level 2 (±2000 V), and CDM ESD classification Level C6 (±1000 V). These qualifications are explicitly listed in Section 1 Features and Section 6.2 ESD Ratings of the official datasheet.

What package type is used for UCC27425QDRQ1 in the 'QDRQ1' orderable variant?

The 'QDRQ1' suffix denotes the 8-pin SOIC (D) package, 4.90 mm × 3.91 mm body size, without PowerPAD™ thermal enhancement. This is distinct from the 'QDGNRQ1' variant, which uses the thermally enhanced MSOP PowerPAD (DGN) package. Package identification is confirmed in the Device Information table and Section 13 Mechanical, Packaging, and Orderable Information.