Allegro MicroSystems EVB102

Overview

EVB102 from Allegro MicroSystems is an evaluation board for the CT100LW-HS6 TMR linear position sensor in SOT23-6 package, supporting ±50 mT magnetic field range, 1.0–5.5 V supply, and operation from –40°C to 150°C. It enables rapid prototyping of linear measurement, proximity sensing, and current sensing circuits.

For engineers reviewing the EVB102 datasheet, EVB102 pinout, EVB102 application, or EVB102 equivalent, this page delivers verified board-level specifications, configuration options, power interface details, output behavior (0–200 mV differential), and integration guidance for industrial and automotive sensor development.

Technical Context

The EVB102 implements a fixed-layout SOT23-6 carrier board with pre-mounted CT100LW-HS6 sensor, providing direct access to OUT1/OUT2 differential analog outputs and VDD/GND terminals. It requires no external biasing or signal conditioning for basic characterization.

Board-level functionality is defined by the underlying CT100LW-HS6 IC: full-bridge TMR architecture, 10 kHz cutoff frequency, ±1430 mV output voltage swing, and intrinsic temperature-stable magnetic response across –40°C to 150°C.

Key Specifications

Availability

EVB102 is available at Aetrix Electronics and suitable for linear position sensing, proximity detection, and current sensing applications requiring stable component supply, fast evaluation turnaround, and traceable sourcing for production ramp-up.

Supply support for EVB102 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

Allegro MicroSystems is a U.S.-based semiconductor company specializing in high-performance magnetic sensing and power ICs for automotive, industrial, and consumer systems.

The EVB102 belongs to Allegro's evaluation platform family for XtremeSense™ TMR sensors, designed to accelerate validation of contactless linear position, current, and proximity sensing in harsh-environment applications.

FAQ

What is the EVB102 used for?

The EVB102 is a dedicated evaluation board for the CT100LW-HS6 TMR linear sensor. It provides immediate access to differential analog outputs (OUT1/OUT2) and simplifies functional verification of magnetic field response, linearity, and temperature stability. Engineers use the EVB102 to validate sensor behavior before integrating the CT100LW-HS6 into custom PCBs. The EVB102 does not contain active circuitry beyond passive routing and mounting - its role is purely evaluative and demonstrative.

Does the EVB102 include the CT100LW-HS6 sensor?

Yes, the EVB102 includes a pre-soldered CT100LW-HS6 TMR linear position sensor in SOT23-6 package. The board is populated with the sensor IC, four through-hole test headers (J1–J4), and no additional active components. All electrical connections - VDD, GND, OUT1, and OUT2 - are brought out to these headers for oscilloscope or multimeter probing. The EVB102 is shipped ready-to-use with no assembly required.

What supply voltage should be applied to the EVB102?

The EVB102 accepts 1.0 V to 5.5 V DC on its VDD and GND terminals, per the CT100LW-HS6 specification. For general evaluation, 3.3 V DC is recommended as it aligns with typical microcontroller I/O voltage levels and ensures optimal signal-to-noise ratio. Voltages exceeding 5.5 V DC must be avoided to prevent damage to the CT100LW-HS6 on the EVB102. The board has no onboard regulation or protection circuitry.

What output signals does the EVB102 provide?

The EVB102 provides two differential analog outputs: OUT1 and OUT2. When a magnet moves across the sensor, the outputs produce a 0–200 mV voltage swing referenced to GND. These are raw, unamplified, ratiometric signals directly from the CT100LW-HS6 die. No signal conditioning, amplification, or digital conversion is performed on the EVB102 - the EVB102 delivers the native sensor output for direct measurement and analysis.

Is the EVB102 compatible with other CT100 variants?

The EVB102 is specifically designed for the CT100LW-HS6 variant in SOT23-6 package. It is not mechanically or electrically compatible with other CT100 variants such as CT100LW-HS3 (SOT23-3) or CT100LW-HS8 (SOIC-8), due to differing pin counts, footprints, and internal configurations. Using a different CT100 variant on the EVB102 would require rework and is not supported. The EVB102 user guide explicitly references only CT100LW-HS6.