Texas Instruments TMCS1127BEVM

Overview

TMCS1127BEVM from Texas Instruments is an evaluation module designed to validate the TMCS1127B-series isolated Hall-effect current-sense amplifiers with 1.65V quiescent output reference voltage. It supports all five sensitivity variants (25–150 mV/A), features reinforced isolation up to ±1100 VDC common-mode voltage, and enables high-current testing up to 90 A DC via large lug connectors on a breakable PCB layout.

For engineers reviewing the TMCS1127BEVM datasheet, TMCS1127BEVM pinout, TMCS1127BEVM application, or TMCS1127BEVM equivalent, this EVM provides rapid functional validation of isolated current sensing across low- and high-side configurations, thermal performance assessment, and output linearity verification under real-world load conditions - critical for power supply monitoring, motor control feedback, and industrial energy metering design-in.

Technical Context

The TMCS1127BEVM implements a single-board, multi-segment architecture where each detachable segment hosts one TMCS1127B variant (B1–B5) in a 10-pin SOIC package. The board integrates fused lead-frame input terminals, test points for all device pins, and optional output filter footprints (R1_x/C2_x).

It operates with independent high-voltage (HV) and low-voltage (LV) domains: HV side handles up to ±1100 VDC common-mode voltage across IN+/IN−, while LV side supplies 3–5.5 V to the TMCS1127B ICs and provides isolated analog output at VOUT. No EMC-optimized layout is provided - the fixture is strictly for lab-based functional evaluation.

Key Specifications

Availability

TMCS1127BEVM is available at Aetrix Electronics and suitable for industrial motor drives, renewable energy inverters, and high-voltage power supply monitoring requiring stable component supply and rapid prototyping support.

Supply support for TMCS1127BEVM 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 applications.

The TMCS1127BEVM belongs to TI's high-voltage evaluation module (HV EVM) family, engineered specifically to accelerate development of isolated current sensing in systems operating up to ±1100 VDC - targeting design validation for EV chargers, solar inverters, and industrial servo drives.

FAQ

What is the primary function of the TMCS1127BEVM?

The TMCS1127BEVM is a dedicated evaluation module for the TMCS1127B-series isolated Hall-effect current-sense amplifiers. It enables engineers to rapidly validate performance-including output linearity, isolation integrity, and thermal behavior-across all five sensitivity options (25–150 mV/A) with a fixed 1.65V quiescent output reference. The TMCS1127BEVM supports both low-side and high-side current measurement configurations under real-world load conditions up to 90 A DC.

Which TMCS1127 devices are supported on the TMCS1127BEVM?

The TMCS1127BEVM supports exactly the TMCS1127B-family variants: TMCS1127B1QDVGR (25 mV/A), TMCS1127B2QDVGR (50 mV/A), TMCS1127B3QDVGR (75 mV/A), TMCS1127B4QDVGR (100 mV/A), and TMCS1127B5QDVGR (150 mV/A). Each variant is pre-mounted on a separate detachable segment of the PCB, all sharing the same 1.65V reference point and 10-pin SOIC package footprint.

Does the TMCS1127BEVM provide electromagnetic compatibility (EMC) testing capability?

No. The TMCS1127BEVM is explicitly not laid out for electromagnetic compatibility (EMC) or electromagnetic interference (EMI) testing. Its layout prioritizes functional evaluation, thermal dissipation, and mechanical robustness for high-current lab use-not signal integrity or radiated emissions compliance. TI states in the user's guide that the fixture layout is not intended as a model for target circuit implementation or EMC validation.

What safety precautions apply when using the TMCS1127BEVM?

The TMCS1127BEVM is classified as a Texas Instruments High Voltage Evaluation Module (TI HV EVM) and requires strict adherence to TI's HV safety guidelines: users must be qualified professionals trained in high-voltage handling; work areas must include emergency power-off (EPO) protection; HV terminals must never be touched while energized; and all measurements must be performed with insulated tools and proper PPE. The TMCS1127BEVM carries danger warnings for high voltage and hot surfaces.

Can the TMCS1127BEVM be used for production applications?

No. Per TI's Standard Terms for Evaluation Modules, the TMCS1127BEVM is intended solely for research, development, and feasibility evaluation in laboratory environments. It is not qualified for use in finished products, production systems, consumer devices, or any commercial deployment. TI explicitly prohibits assembly of the TMCS1127BEVM as a subassembly in end equipment.