Texas Instruments UCC27710DR

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, dual independent inputs (HI/LI), internal 150-ns interlock deadtime, and SOIC-8 package. It drives power MOSFETs or IGBTs in half-bridge topologies for offline AC–DC power supplies and motor inverters.

For engineers reviewing the UCC27710 datasheet, UCC27710 pinout, UCC27710 application, or UCC27710 equivalent, key selection considerations include its 140-ns typical propagation delay, ±50 V/ns dv/dt immunity, –11 V to +600 V HS voltage range, UVLO protection on both VDD and HB–HS rails, and bootstrap-compatible floating HO channel.

Technical Context

The UCC27710 integrates one ground-referenced low-side driver (LO) and one floating high-side driver (HO) with level-shifting architecture optimized for bootstrap operation. Its interlock logic enforces minimum 95–200 ns deadtime between HO and LO transitions, preventing shoot-through in bridge configurations.

Each channel features TTL/CMOS-compatible inputs with 2.0-V typical high threshold and 1.2-V typical low threshold, plus 0.8-V hysteresis for noise immunity. The device operates across –40 °C to +125 °C with UVLO thresholds of 8.9 V (VDD ON), 8.4 V (VDD OFF), 8.2 V (HB–HS ON), and 7.3 V (HB–HS OFF), all 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 and clearance suitable for 620-V applications. Pin 1 is VDD; pin 4 is COM (ground reference); pin 7 is HO (high-side output); pin 5 is LO (low-side output); pin 8 is HB (bootstrap supply input); pin 6 is HS (high-side return); pins 2 and 3 are HI and LI (independent logic inputs).

Key Features

Applications

Equivalent & Alternatives

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

Compared with IR2110PbF and LM5109BMAX, the UCC27710 uniquely combines 620-V HS rating, ±50 V/ns dv/dt immunity, and fixed 150-ns interlock in a single SOIC-8 package-making it optimal for high-reliability, high-noise, high-voltage half-bridge designs where timing integrity and fault robustness are critical.

Availability

UCC27710 is available at Aetrix Electronics and suitable for motor drive, AC–DC power supply, induction heating, and appliance inverter applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.

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 power management technologies, with decades of expertise in high-voltage gate driver design.

The UCC27710 belongs to TI's high-voltage gate driver product line, engineered specifically for robust, high-efficiency half-bridge and full-bridge power conversion in industrial, appliance, and motor control systems.

FAQ

What is the maximum continuous voltage rating on the HS pin of the UCC27710?

The UCC27710 supports a continuous HS node voltage range of –11 V to +600 V relative to COM, with absolute maximum HB pin voltage rated at 700 V. This allows direct use in 620-V offline applications without external voltage clamping, provided HB–HS remains within 10 V to 20 V during operation.

Does the UCC27710 require external deadtime circuitry?

No - the UCC27710 includes internal interlock logic that enforces a guaranteed 95–200 ns deadtime between HO and LO transitions, eliminating the need for external deadtime generation. This feature activates automatically when HI and LI inputs overlap or transition too closely, preventing shoot-through in half-bridge configurations.

Can the UCC27710 drive both MOSFETs and IGBTs?

Yes - the UCC27710 is designed to drive both power MOSFETs and IGBTs. Its recommended VDD range is 10–17 V for MOSFETs and 10–20 V for IGBTs, and its 0.5-A source / 1.0-A sink capability matches typical gate charge requirements for devices up to ~20 nC in 100-kHz-class applications.

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 - a safety feature that prevents unintended power device turn-on during system initialization or fault conditions.

What is the purpose of the HB and HS pins on the UCC27710?

HB (Pin 8) is the bootstrap supply input, connected to the positive terminal of the bootstrap capacitor. HS (Pin 6) is the high-side return, tied to the source/emitter of the high-side MOSFET/IGBT. Together, they form the floating power rail for the HO channel - enabling self-biased operation without an isolated supply while maintaining accurate timing and drive strength.