Texas Instruments UCC27201ADPRT

Overview

UCC27201ADPRT from Texas Instruments is a high-frequency, dual-channel N-channel MOSFET half-bridge gate driver with independent HI/LI inputs, 3A sink/source output capability, 22ns propagation delay, and integrated 0.65V/0.65Ω bootstrap diode. It operates across –40°C to 150°C and supports up to 120V boot voltage for high-side switching in isolated DC–DC and inverter topologies.

For engineers reviewing the UCC27201ADPRT datasheet, UCC27201ADPRT pinout, UCC27201ADPRT application, or UCC27201ADPRT equivalent, this page delivers verified electrical specs, thermal metrics, TTL-compatible input thresholds (1.9V/1.3V), UVLO behavior (7.1V VDD rising threshold), and package-specific layout guidance for SOIC-8 (D) packaging.

Technical Context

The UCC27201ADPRT implements independent high-side and low-side drivers referenced to HS and VSS respectively, with level-shift circuitry enabling precise timing control of floating high-side gates. Its on-chip bootstrap diode eliminates external discrete diodes while supporting 120V maximum HB–HS differential voltage and –18V negative HS transient tolerance.

It features dual undervoltage lockout (UVLO) circuits - one for VDD (7.1V rising threshold, 0.5V hysteresis) and one for HB–HS (6.7V rising threshold, 0.4V hysteresis) - ensuring safe operation during brownout or bootstrap capacitor discharge. Delay matching between HO and LO is specified at ≤1ns, critical for minimizing shoot-through risk in hard-switched converters.

Key Specifications

Pinout & Package

UCC27201ADPRT is packaged in an 8-pin SOIC (D package), 4.9 mm × 3.9 mm body size, with exposed thermal pad not electrically connected to VSS in this variant. Pin functions are validated per TI SLUSAF9C Rev J (July 2024).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar half-bridge gate driver applications.

Compared with UCC27200ADPRT and IRS2004SPBF, UCC27201ADPRT uniquely combines TTL-level input compatibility, 120V bootstrap capability, sub-25ns propagation, and 1ns delay matching in a single SOIC-8 package - making it optimal for space-constrained, high-frequency, 3.3V-controller-based power stages.

Availability

UCC27201ADPRT is available at Aetrix Electronics and suitable for solar microinverters, telecom power supplies, and online UPS systems requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for UCC27201ADPRT 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 delivering analog, embedded processing, and power management solutions with emphasis on reliability, thermal performance, and industrial-grade qualification.

The UCC2720xA family was designed specifically for high-efficiency, high-density isolated DC–DC and inverter applications requiring robust half-bridge gate drive with integrated bootstrap functionality and extended temperature operation.

FAQ

What is the input voltage threshold type for UCC27201ADPRT?

UCC27201ADPRT features TTL-compatible input thresholds: HI high threshold is 1.9–2.7 V and LI low threshold is 1.3–1.9 V, with 0.7 V hysteresis. This allows direct interfacing with 3.3V or 5V logic controllers without external level-shifting circuitry - a key distinction from the CMOS-input UCC27200ADPRT variant. The UCC27201ADPRT maintains these thresholds across its full operating temperature range (–40°C to 150°C).

Does UCC27201ADPRT include an integrated bootstrap diode?

Yes, UCC27201ADPRT integrates a bootstrap diode with 0.65 V typical forward voltage and 0.65 Ω dynamic resistance. The diode anode connects internally to VDD and cathode to HB, eliminating the need for an external discrete diode in most half-bridge designs. This reduces bill-of-materials cost, PCB area, and potential failure points while maintaining reliable bootstrap capacitor recharge at switching frequencies up to 500 kHz.

What is the maximum allowable voltage on the HS pin of UCC27201ADPRT?

The HS pin of UCC27201ADPRT supports a DC voltage range of –1 V to +120 V relative to VSS, with transient tolerance up to –18 V for pulses <100 ns. This specification enables use in high-voltage half-bridge configurations such as solar microinverters (100V bus) and telecom PSUs, where negative ringing during turn-off must be safely absorbed without latch-up or damage to the UCC27201ADPRT.

How does the UVLO function on UCC27201ADPRT protect the system?

UCC27201ADPRT implements dual independent UVLO circuits: VDD UVLO triggers at 7.1 V rising threshold (0.5 V hysteresis), disabling both drivers; HB–HS UVLO triggers at 6.7 V differential (0.4 V hysteresis), disabling only the high-side driver. This prevents unsafe operation during brownout or bootstrap capacitor discharge - critical for avoiding shoot-through in half-bridge topologies. Both thresholds remain stable across –40°C to 150°C.

Is UCC27201ADPRT pin-compatible with other members of the UCC2720xA family?

Yes, UCC27201ADPRT in the D (SOIC-8) package shares identical pinout and footprint with UCC27200ADPRT, enabling drop-in replacement when only input threshold logic differs. However, it is not pin-compatible with VSON or WSON variants (e.g., DRC, DPR) due to differing pin counts and thermal pad configurations. Always verify package marking and mechanical drawings before board-level substitution.