Texas Instruments TPS61193EVM

Overview

TPS61193EVM from Texas Instruments is an evaluation module designed to characterize the TPS61193 or TPS61193-Q1 automotive-grade 3-channel LED driver IC. It implements a high-efficiency boost/SEPIC converter with adaptive output voltage control, three precision current sinks (100 mA/channel, 1% matching), and PWM dimming up to 10,000:1 at 200 Hz - enabling rapid validation of LCD backlighting systems for instrument clusters and infotainment displays.

For engineers reviewing the TPS61193EVM datasheet, TPS61193EVM hardware setup, TPS61193EVM schematic, or TPS61193EVM alternative evaluation boards, this module provides full access to VIN (4.5–40 V), PWM control, fault reporting, and configurable boost switching frequency (400 kHz default) and LED current settings via onboard jumpers and test points.

Technical Context

The TPS61193EVM implements the complete functional interface of the TPS61193/TPS61193-Q1 IC, including its dual-function VDDIO/EN pin (3.3 V LDO output + enable), FSET-controlled switching frequency (300 kHz–2.2 MHz), and ISET-configurable LED current (up to 100 mA per channel). It supports adaptive boost voltage regulation based on real-time LED headroom sensing to minimize power loss.

Hardware features include a 4-layer FR4 PCB with immersion gold finish, dedicated connectors for LED strings (J16), input battery (J25), external PWM (J18), and SYNC (J17); onboard shunt resistors (R4 = 24 kΩ) and feedback dividers (R12 = 750 kΩ, R13 = 130 kΩ) set default operation at 400 kHz and 37 V max boost output.

Key Specifications

Availability

TPS61193EVM is available at Aetrix Electronics and suitable for automotive lighting development, LCD backlighting prototyping, and LED driver qualification requiring stable component supply and documented reference design support.

Supply support for TPS61193EVM 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 deep expertise in automotive electronics and system-level reference designs.

The TPS61193EVM belongs to TI's automotive LED driver evaluation platform family, engineered specifically to accelerate validation of high-reliability, low-EMI backlight drivers for instrument clusters, center-stack displays, and HUD systems.

FAQ

What is the primary function of the TPS61193EVM?

The TPS61193EVM is an evaluation module used to assess the operation and performance of the TPS61193 or TPS61193-Q1 3-channel automotive LED driver IC. It enables engineers to validate boost converter behavior, LED current sink accuracy, PWM dimming response, fault detection, and adaptive voltage control under real-world input conditions (4.5–40 V), without designing custom hardware. The TPS61193EVM includes all necessary jumpers, test points, and connectors to replicate typical automotive backlighting use cases.

Does the TPS61193EVM support both TPS61193 and TPS61193-Q1 devices?

Yes - the TPS61193EVM is compatible with both the commercial-grade TPS61193PWP and the AEC-Q100 qualified TPS61193PWPQ1 ICs, as confirmed in the SNVU491 User's Guide. U1 on the board is populated with either variant depending on version, and all circuitry, layout, and configuration options (e.g., jumpers J1–J14, J26) are identical for both parts. No hardware modification is required to evaluate either device.

How is LED current configured on the TPS61193EVM?

LED current per channel is set via an external resistor (R4 = 24 kΩ) connected to the ISET pin of the TPS61193/TPS61193-Q1 IC, yielding a nominal 100 mA per string per the ILED = 2000 × VBG / RISET formula (VBG = 1.2 V). Jumper J5 connects R4 to ISET by default. To change current, remove J5, install a different resistor between pins 1–2 of J17, and connect it to J18 - allowing precise scaling from ~20 mA to 100 mA without soldering.

Can the TPS61193EVM be synchronized to an external clock source?

Yes - the TPS61193EVM supports external synchronization via the SYNC pin (U1 pin 9). Jumper J3 selects mode: grounded for spread-spectrum operation (±3% modulation at 1.875 kHz), or connected to VDDIO/EN for spread-spectrum disable. To synchronize, remove J3, short pins 1–2 on J17, and apply an external clock (1.2–1.5× the FSET-set frequency, 1.2–1.5 V logic level) to J18. This allows EMI reduction or timing alignment with other system clocks.

What safety and fault features can be tested using the TPS61193EVM?

The TPS61193EVM enables validation of six integrated protection mechanisms: open/shorted LED detection, input overvoltage (OVP) and undervoltage lockout (UVLO), boost overcurrent, and thermal shutdown. Fault status is reported on the open-drain FAULT pin (U1 pin 12), which drives onboard LED D2 when active (jumper J10 installed). Test points allow oscilloscope monitoring of FAULT, VDDIO/EN, and individual LED currents during fault injection.