Texas Instruments UCC28880EVM-616

Overview

UCC28880EVM-616 from Texas Instruments is an evaluation module for the UCC28880 700-V, 100-mA low-quiescent-current off-line converter IC. It implements a non-isolated low-side buck topology with direct level-shifted feedback, supports 85–265 V_AC input, delivers up to 100 mA output in CCM mode, and achieves ≤18 mW no-load input power at 230 V_AC. It is designed for metering, home automation, and TRIAC-driven appliance control.

For engineers reviewing the UCC28880EVM-616 datasheet, UCC28880EVM-616 pinout, UCC28880EVM-616 application, or UCC28880EVM-616 equivalent, this page provides verified board-level specifications, thermal performance data, supported topologies (buck/buck-boost/flyback), WEBENCH® integration capability, and design guidance for low-standby-power AC/DC conversion.

Technical Context

The UCC28880EVM-616 demonstrates the UCC28880 controller's self-biased operation: startup and regulation are powered directly from rectified mains via the integrated 700-V HVIN current source, eliminating auxiliary windings or startup resistors. Its constant-on-time, minimum-off-time PWM architecture enables load-dependent switching without an internal clock.

Protection features implemented on the board include inductor current runaway prevention (500 ns response), thermal shutdown (150°C trip), overcurrent limiting (170–260 mA, temperature-compensated), and UVLO (VDD turn-on at 3.92 V, hysteresis 0.33 V). The board supports both CCM (100 mA) and DCM (70 mA) operation across universal AC input.

Key Specifications

Availability

UCC28880EVM-616 is available at Aetrix Electronics and suitable for metering, home automation, infrastructure SMPS, and TRIAC driver applications requiring stable component supply, rapid prototyping support, and production-ready reference designs.

Supply support for UCC28880EVM-616 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 specializing in analog, embedded processing, and power management technologies, with decades of leadership in power conversion ICs and evaluation platforms.

The UCC28880EVM-616 belongs to TI's UCC28880 evaluation module series, developed specifically to accelerate design-in of ultra-low-quiescent-current off-line converters for energy-sensitive applications like smart meters and IoT edge nodes.

FAQ

What is the primary function of the UCC28880EVM-616?

The UCC28880EVM-616 is a fully assembled and tested evaluation module that demonstrates the UCC28880 700-V off-line converter IC in a low-side buck configuration. It enables engineers to validate performance metrics-including no-load power (≤18 mW at 230 V_AC), CCM/DCM output current capability (100 mA / 70 mA), and thermal behavior-without building a prototype. The UCC28880EVM-616 integrates all critical passive components, feedback network, and layout-optimized PCB per TI's SLUSC05D design guidelines.

Does the UCC28880EVM-616 support multiple converter topologies?

Yes, the UCC28880EVM-616 is configured as a low-side buck converter but is explicitly designed to support reconfiguration for buck-boost and flyback topologies per TI's UCC28880 datasheet (SLUSC05D Section 8.2). The board includes unpopulated footprints and routing provisions for alternate diode, transformer, and feedback arrangements. The UCC28880EVM-616 leverages the IC's inherent topology flexibility-enabled by its integrated 700-V MOSFET, HVIN startup current source, and level-shifted feedback compatibility-to reduce redesign effort across applications.

What protection features are implemented and verified on the UCC28880EVM-616?

The UCC28880EVM-616 validates four key protections from the UCC28880 IC: (1) inductor current runaway prevention (500 ns response time), (2) thermal shutdown (150°C junction trip with 50°C hysteresis), (3) cycle-by-cycle current limiting (170–260 mA, temperature-compensated), and (4) under-voltage lockout (VDD turn-on at 3.92 V, hysteresis 0.33 V). These are confirmed in TI's SLUSC05D test reports and reflected in the EVM-616 schematic (UCC28880 pin functions: DRAIN, FB, HVIN, VDD, GND). The UCC28880EVM-616 provides accessible test points to monitor each protection event in real time.

How does the UCC28880EVM-616 achieve ultra-low standby power?

The UCC28880EVM-616 achieves ≤18 mW no-load input power at 230 V_AC by combining the UCC28880's <100 µA quiescent current, integrated 700-V HVIN current source (eliminating startup resistor losses), and optimized low-leakage external components (e.g., fast-recovery freewheeling diode STTH1R06A). The board's SOIC-7 layout minimizes parasitic capacitance, and the absence of auxiliary bias windings removes associated core and copper losses. This performance is measured per TI SLUSC05D Section 7.3 and enables compliance with ENERGY STAR® and EU CoC Tier 2 standby requirements. The UCC28880EVM-616 serves as a validated benchmark for low-power design.

Is WEBENCH® Power Designer integration supported for the UCC28880EVM-616?

Yes, the UCC28880EVM-616 is fully supported in TI's WEBENCH® Power Designer tool (accessible via ti.com/webench). Engineers can import the UCC28880EVM-616 configuration-including its 85–265 V_AC input, 12 V/100 mA output, SOIC-7 package, and low-side buck topology-to generate custom schematics, perform loss analysis, simulate thermal behavior, and export BOMs. WEBENCH® uses the UCC28880's validated electrical models (from SLUSC05D Section 6.5) to ensure simulation accuracy. The UCC28880EVM-616 serves as the physical reference for all WEBENCH®-generated designs using the UCC28880 IC.