Texas Instruments UCC20225AQNPLTQ1

Overview

UCC20225AQNPLTQ1 from Texas Instruments is an AEC-Q100 Grade 1 qualified isolated dual-channel gate driver in a 5-mm × 5-mm LGA-13 package, designed for automotive 48-V systems. It delivers 4-A peak source and 6-A peak sink output current, features resistor-programmable dead time, and provides 19-ns typical propagation delay with ≤5-ns delay matching - enabling robust half-bridge control in high-efficiency external audio amplifiers and DC-DC converters.

For engineers reviewing the UCC20225AQNPLTQ1 datasheet, UCC20225AQNPLTQ1 pinout, UCC20225AQNPLTQ1 application, or UCC20225AQNPLTQ1 equivalent, key selection criteria include its 5-V UVLO option, 100-V/ns CMTI, functional isolation between output channels (700-V_DC working voltage), and compatibility with TTL/CMOS logic interfaces across 3–18-V VCCI.

Technical Context

The UCC20225AQNPLTQ1 integrates a single PWM input with dual complementary outputs (OUTA in-phase, OUTB anti-phase), where dead time is set via external resistor R_DT on the DT pin (DT = 10 × R_DT in ns). Its galvanic isolation barrier provides 3535-V_PK transient withstand per VDE V 0884-11 and 2500-V_RMS for 1 minute per UL 1577.

Each output channel operates independently with dedicated VDDA/VSSA and VDDB/VSSB supplies, supporting up to 25-V bias with internal UVLO (5-V rising threshold). The device rejects transients <5 ns and maintains timing integrity under fast common-mode edges due to >100-V/ns CMTI performance.

Key Specifications

Pinout & Package

UCC20225AQNPLTQ1 uses a 5-mm × 5-mm LGA-13 package with exposed thermal pad (non-solderable), optimized for high-density automotive PCB layouts and thermal performance in confined enclosures.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar isolated gate driver applications.

Compared with UCC20225AQNPLTQ1, UCC21520QDWQ1 offers greater control flexibility but sacrifices board area and thermal performance, while Si8273ABD-IS provides higher isolation rating but lacks automotive qualification and adjustable dead time - making UCC20225AQNPLTQ1 optimal for space-constrained, safety-critical 48-V automotive power stages.

Availability

UCC20225AQNPLTQ1 is available at Aetrix Electronics and suitable for automotive external audio amplifiers, 48-V bidirectional DC-DC converters, and electric power steering motor drivers requiring stable component supply with full AEC-Q100 traceability and long-term production support.

Supply support for UCC20225AQNPLTQ1 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 deep expertise in automotive-grade IC design and manufacturing.

The UCC20225AQNPLTQ1 belongs to TI's isolated gate driver product line, engineered specifically for high-reliability 48-V automotive electrification systems - emphasizing low propagation delay, functional isolation, and AEC-Q100 compliance from wafer to package.

FAQ

What is the UVLO threshold for UCC20225AQNPLTQ1 on the VDD pins?

The UCC20225AQNPLTQ1 has a 5-V UVLO option: VDD rising threshold is 5.7–6.3 V, falling threshold is 5.4–6.0 V, with 0.3-V hysteresis. This ensures reliable gate drive enablement only when the 48-V-derived bias rail is within safe operating range, preventing partial turn-on of power FETs. The UVLO behavior is fully characterized across –40°C to +125°C ambient.

How does the DT pin function on UCC20225AQNPLTQ1?

The DT pin on UCC20225AQNPLTQ1 sets dead time by connecting an external resistor R_DT to GND: DT (ns) = 10 × R_DT (kΩ). For example, a 20-kΩ resistor yields ~200 ns dead time. Tying DT to VCCI disables dead time (~0 ns). A 2.2-nF ceramic capacitor is recommended near DT to suppress noise - a design requirement explicitly stated in the datasheet for automotive EMI robustness.

Does UCC20225AQNPLTQ1 support functional isolation between its two output channels?

Yes, UCC20225AQNPLTQ1 provides functional isolation between OUTA/VDDA/VSSA and OUTB/VDDB/VSSB, allowing up to 700-V_DC working voltage across VSSA–VSSB. This is distinct from the main input-to-output isolation barrier and enables independent biasing - critical for high-side gate drive in half-bridge topologies where output grounds float relative to each other.

What is the maximum switching frequency supported by UCC20225AQNPLTQ1?

UCC20225AQNPLTQ1 is characterized for operation up to 5 MHz, with verified timing performance (e.g., 19-ns propagation delay, ≤6-ns pulse-width distortion) at 2.7 MHz in typical 1-nF load conditions. Its 4-A/6-A drive strength and fast rise/fall times (6–16 ns) ensure minimal gate drive loss even at high frequencies used in Class-D audio and high-density DC-DC converters.

Is UCC20225AQNPLTQ1 pin-compatible with UCC20225QNPLTQ1?

No - UCC20225AQNPLTQ1 and UCC20225QNPLTQ1 share identical pinout and package (LGA-13), but differ in VDD UVLO thresholds (5 V vs. 8 V) and associated hysteresis. They are not drop-in replacements; substituting one for the other requires verifying that the bias rail behavior aligns with the selected UVLO profile to avoid unintended shutdown or unreliable startup.