Texas Instruments UCC27710D

Overview

UCC27710 from Texas Instruments is a 620-V high-side/low-side gate driver IC with 0.5-A source / 1.0-A sink peak output current, designed to drive power MOSFETs or IGBTs in half-bridge topologies. It features interlocked dual inputs (HI/LI), 140-ns typical propagation delay, 8-ns typical delay matching, and operates across –40 °C to +125 °C for motor drives and inverters.

For engineers reviewing the UCC27710 datasheet, UCC27710 pinout, UCC27710 application, or UCC27710 equivalent, this page delivers verified technical context, SOIC-8 package mapping, real-world timing behavior under voltage transients, and validated alternatives for bridge driver selection in high-voltage switching systems.

Technical Context

The UCC27710 integrates one ground-referenced low-side channel (LO) and one floating high-side channel (HO) with bootstrap biasing capability via HB/HS pins. Its interlock logic enforces ≥95 ns internal deadtime to prevent shoot-through, independent of controller timing.

It employs TTL/CMOS-compatible input thresholds (VINH = 2.0 V typ, VINL = 1.2 V typ) with 0.8-V hysteresis and supports –11 V to +600 V HS node voltage swing. UVLO protection is implemented separately on VDD (8.9 V on, 8.4 V off) and HB–HS (8.2 V on, 7.3 V off), each with 0.5-V hysteresis.

Key Specifications

Pinout & Package

UCC27710 is housed in an industry-standard SOIC-8 package (3.91 mm × 4.90 mm body size) with creepage/clearance optimized for 620-V operation. Pin 1 (VDD) is located at the top-left corner when the device marking is upright and the notch faces upward.

Key Features

Applications

Equivalent & Alternatives

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

Compared with UCC27710, IRS2005STRPBF offers higher drive strength but lacks hardware interlock, increasing layout complexity; LM5109BMAX/NOPB provides simpler deadtime control but trades off 60 ns slower propagation and reduced current capability - making UCC27710 optimal for precision-timing, medium-power 400–600 V systems.

Availability

UCC27710 is available at Aetrix Electronics and suitable for motor drives, induction heating systems, and DC-to-AC inverters requiring stable component supply, long-term lifecycle support, and traceable sourcing for industrial OEM programs.

Supply support for UCC27710 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 high-reliability power management solutions, with decades of expertise in high-voltage gate driver innovation.

The UCC27710 belongs to TI's high-voltage gate driver product line, engineered specifically for robust, high-efficiency switching in offline AC-DC, motor control, and renewable energy inverters operating up to 620 V.

FAQ

What is the maximum allowable voltage on the HS pin of the UCC27710?

The UCC27710 supports a continuous HS pin voltage range of –11 V to +600 V relative to COM, with 700 V absolute maximum rating on the HB pin. This enables direct use in 400 V and 600 V DC bus applications such as solar inverters and industrial motor drives without external level-shifting circuitry. The –11 V negative tolerance accommodates inductive kickback during hard commutation events.

Does the UCC27710 require external deadtime circuitry?

No - the UCC27710 includes internal hardware interlock logic that guarantees a minimum 95 ns (typical 150 ns) deadtime between HO and LO transitions, regardless of input timing. This eliminates the need for external RC networks or controller-based deadtime insertion, simplifying design and improving reliability in half-bridge and full-bridge topologies.

Can the UCC27710 drive both MOSFETs and IGBTs?

Yes - the UCC27710 is explicitly rated for driving both power MOSFETs and IGBTs. Its 0.5-A source / 1.0-A sink capability matches typical gate charge requirements for 30–100 A IGBT modules and 50–200 A MOSFETs used in motor drives and inverters. Recommended VDD is 10–17 V for MOSFETs and 10–20 V for IGBTs per TI's datasheet guidance.

How does the UCC27710 handle floating input pins?

The UCC27710 incorporates internal pull-down resistors on both HI and LI inputs. If either input is left unconnected or floating, the corresponding output (HO or LO) is actively held low - preventing unintended switch turn-on and enhancing system safety during initialization or fault conditions. This behavior is confirmed in Table 3 of the official SLUSD05B datasheet.

What thermal metrics apply to the UCC27710 in SOIC-8 package?

The UCC27710 in SOIC-8 has a junction-to-ambient thermal resistance (RθJA) of 108.3 °C/W, junction-to-board (RθJB) of 57.9 °C/W, and junction-to-case (top) (RθJC) of 61.5 °C/W. These values assume standard JEDEC 2S2P board layout; actual thermal performance improves significantly with copper pour and thermal vias under the exposed pad (if present) or package bottom.