Texas Instruments UCC33420EVM-080

Overview

UCC33420EVM-080 from Texas Instruments is an evaluation module designed to validate the UCC33420-Q1 isolated DC/DC converter - a 1.5W, 3kV_RMS, 5V-output automotive-grade module in a 4mm×5mm×1mm VSON-12 package. It supports 4.5–5.5V input, delivers up to 300mA output current, and demonstrates isolated bias supply operation for high-reliability automotive and industrial systems.

For engineers reviewing the UCC33420EVM-080 datasheet, UCC33420EVM-080 setup procedure, UCC33420EVM-080 test points, or UCC33420EVM-080 compatible IC alternatives, this EVM provides validated hardware, documented efficiency/load regulation data, thermal performance imaging, and oscilloscope-ready probe points (TP3/TP6) for rapid characterization of isolated power delivery.

Technical Context

The UCC33420EVM-080 implements the UCC33420-Q1 as its core device - a fully integrated, high-frequency (64.5 MHz) isolated DC/DC converter with transformer, control, and power stages embedded in a single VSON-12 package. It operates across 4.5–5.5V input and regulates a 5V isolated output with ≤0.5% load regulation and ≤75mV pk-pk AC ripple at full load.

This EVM features screw-terminal primary (J1) and secondary (J3) connections, configurable SEL pin support for 5V/5.5V output selection, EN/FLT monitoring via header J2, and dedicated test points (TP1–TP6) enabling precise measurement of VINP, VCC, startup transients, inrush, and short-circuit recovery without ground-loop risk.

Key Specifications

Availability

UCC33420EVM-080 is available at Aetrix Electronics and suitable for factory automation PLC modules, EV charging infrastructure, and battery management systems requiring stable component supply, pre-validated reference designs, and automotive-grade evaluation hardware.

Supply support for UCC33420EVM-080 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 headquartered in Dallas, Texas, delivering analog and embedded processing solutions for industrial, automotive, and communications markets.

The UCC33xx0 product line targets space-constrained isolated power applications - specifically replacing discrete transformer-based bias supplies in automotive ADAS, motor drives, and industrial I/O modules with integrated, AEC-Q100-compliant modules.

FAQ

What is the purpose of the UCC33420EVM-080?

The UCC33420EVM-080 is a Texas Instruments evaluation module built around the UCC33420-Q1 isolated DC/DC converter. Its purpose is to enable rapid validation of 1.5W, 5V isolated bias supply performance - including efficiency, regulation, ripple, thermal behavior, and fault response - in automotive and industrial environments. The UCC33420EVM-080 includes screw terminals, test points, and documented test procedures to accelerate design-in.

Which IC is mounted on the UCC33420EVM-080 by default?

The UCC33420EVM-080 ships with the UCC33420-Q1 (orderable part PUCC33420QRAQRQ1) as the default IC. This AEC-Q100-qualified device delivers 5V output at up to 300mA from a 4.5–5.5V input, with 3kV_RMS isolation and integrated transformer. The UCC33420EVM-080 schematic also supports pin-compatible alternatives like UCC33410-Q1 and UCC33020-Q1 for comparative evaluation.

How do I configure the UCC33420EVM-080 for 5.5V output?

To configure the UCC33420EVM-080 for 5.5V output, connect the SEL pin (J4:3–4) to GNDS using a jumper or solder bridge. When SEL is shorted to GNDS, the UCC33420-Q1 regulates VCC to 5.5V ±165mV (typical). The default configuration (SEL tied to VCC via J4:1–2) yields 5.0V output. Both configurations maintain 300mA max load capability and 3kV_RMS isolation.

What test equipment is required to evaluate the UCC33420EVM-080?

Evaluating the UCC33420EVM-080 requires a 5V/1A DC input supply (J1), a 3.3V/5V bias supply for EN (J2), a 0–300mA electronic load (J3), two DVMs for VINP/VCC voltage/current, and a 500MHz+ oscilloscope with voltage probes for TP3 (VINP) and TP6 (VCC). Thermal imaging or thermocouples are recommended for junction temperature assessment under load.

Does the UCC33420EVM-080 support short-circuit protection testing?

Yes, the UCC33420EVM-080 supports short-circuit testing: when VCC is shorted, the UCC33420-Q1 pulls the EN/FLT pin low for 200μs and attempts automatic restart after 160ms. This behavior is documented in Figure 3-32 of the user's guide and can be observed using the EN/FLT signal at J2:2–3 and VCC at TP5/TP6. The EVM's layout and test points allow safe, repeatable fault characterization without board damage.