Texas Instruments TPS92515HVEVM-749

Overview

TPS92515HVEVM-749 from Texas Instruments is a high-current buck LED driver evaluation module built around the TPS92515HV-Q1 automotive-grade LED controller IC. It delivers up to 1.5 A output current across 2–65 V LED string voltages, supports 100 Hz–10 kHz PWM dimming and analog dimming via IADJ voltage (0.1–2 V), and achieves 94% efficiency at 42 V input with 7 LEDs.

For engineers reviewing the TPS92515HVEVM-749 datasheet, TPS92515HVEVM-749 pinout, TPS92515HVEVM-749 application, or TPS92515HVEVM-749 equivalent, this EVM enables rapid validation of high-brightness LED drive topologies in industrial signage, automotive lighting, and architectural illumination systems requiring wide-input (5.5–65 V), fast-response dimming, and thermally robust layout.

Technical Context

The TPS92515HVEVM-749 implements a synchronous buck topology using the TPS92515HV-Q1 IC, which integrates a 65 V/2 A N-channel MOSFET and features internal current-mode control with adjustable switching frequency (125 kHz typical). It supports both analog dimming via the IADJ pin and external PWM dimming applied directly to the PWM pin (2.5–5 V logic levels).

Designed for high-reliability LED applications, the EVM includes shunt FET dimming capability, input undervoltage lockout, and thermal protection. Its PCB layout prioritizes low-inductance power paths, with twisted short leads recommended for LED connections and dedicated test points (TP1/IADJ, TP3/PWM) for real-time signal monitoring and configuration.

Key Specifications

Availability

TPS92515HVEVM-749 is available at Aetrix Electronics and suitable for LED lighting development, automotive headlamp prototyping, and industrial display backlight evaluation requiring stable component supply, traceable sourcing, and technical support for high-current DC-DC LED drivers.

Supply support for TPS92515HVEVM-749 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 consumer markets since 1930.

The TPS92515HVEVM-749 belongs to TI's LED driver evaluation platform family, designed specifically to accelerate development of high-efficiency, high-reliability LED lighting systems compliant with AEC-Q100 and automotive functional safety requirements.

FAQ

What is the primary function of the TPS92515HVEVM-749?

The TPS92515HVEVM-749 is an evaluation module for the TPS92515HV-Q1 high-current buck LED driver IC. Its primary function is to provide a fully assembled, tested reference platform enabling engineers to validate LED current regulation, PWM/analog dimming behavior, efficiency, and thermal performance under real-world conditions - without designing custom hardware. The TPS92515HVEVM-749 supports rapid iteration on LED lighting designs for automotive and industrial applications.

Can the TPS92515HVEVM-749 drive more than one LED string?

No, the TPS92515HVEVM-749 is configured for single-string operation only, with J2 providing a two-terminal screw-down connector (LED+ and LED–/GND) for one LED load. While the underlying TPS92515HV-Q1 IC is a single-channel controller, the TPS92515HVEVM-749 board does not support parallel or multi-string configurations out-of-the-box. Driving multiple independent strings would require separate TPS92515HVEVM-749 units or a custom design.

How do I adjust the output current on the TPS92515HVEVM-749?

Output current on the TPS92515HVEVM-749 is adjusted via three methods: (1) Jumper J1 - shunt between pins 1–2 sets 1 A, pins 2–3 sets 1.5 A; (2) Analog voltage on TP1 (IADJ) - applying 0.1–2 V scales output linearly from ~0.1 A to full scale; (3) External resistor network - per the TPS92515HV-Q1 datasheet, R_CS can be modified to change peak current sensing threshold. All adjustments must respect the 2 A maximum rating of the integrated FET.

Does the TPS92515HVEVM-749 support automotive qualification standards?

Yes - the TPS92515HVEVM-749 incorporates the TPS92515HV-Q1 IC, which is qualified to AEC-Q100 Grade 1 (−40°C to +125°C ambient) and meets automotive reliability and ESD requirements. The EVM itself is intended for R&D use in automotive lighting development, though it is not a production-ready module. Its bill of materials includes AEC-Q200 inductors (e.g., Wurth MBH12575C-470MA) and AEC-Q101 diodes (e.g., Diodes Inc. PDS3100Q-13), reinforcing its suitability for automotive-grade prototyping.

What safety precautions apply when operating the TPS92515HVEVM-749?

TI mandates strict safety practices for the TPS92515HVEVM-749: never leave powered unattended; avoid contact with hot surfaces (especially L1, U1, and R5/R6); treat all input connections as high-voltage hazards (up to 65 V); use isolated test equipment with overvoltage/overcurrent protection; and consult the LED manufacturer's EN62471 risk group rating before illumination testing. The EVM carries HIGH VOLTAGE, HOT SURFACE, and CAUTION warnings in its user guide - all must be observed to prevent injury or equipment damage.