Allegro MicroSystems ASEK-1369-73369-SUBKIT-T-DK

Overview

ASEK-1369-73369-SUBKIT-T-DK from Allegro MicroSystems is a discontinued evaluation subkit designed to support programming, characterization, and functional validation of the A1369EUA-10-T and A1369EUA-24-T customer-programmable linear Hall-effect current sensor ICs. It enables end-of-line OTP programming of sensitivity (–8.5 to –12.5 mV/G or –22 to –26 mV/G), quiescent output voltage (2.45–2.55 V), and temperature coefficients over –40°C to 85°C, targeting high-accuracy current sensing in industrial power modules and motor control systems.

For engineers reviewing the ASEK-1369-73369-SUBKIT-T-DK datasheet, ASEK-1369-73369-SUBKIT-T-DK application, ASEK-1369-73369-SUBKIT-T-DK pinout, or ASEK-1369-73369-SUBKIT-T-DK equivalent, this subkit provides hands-on access to Allegro's proprietary Try/Blow/Read programming protocol via the VOUT pin, supports ratiometric output verification under 4.5–5.5 V supply, and delivers traceable calibration for magnetic field linearity (±1.0% LinERR), symmetry (±1.5% SymERR), and QVO drift (±20 mV over temperature).

Technical Context

This subkit interfaces exclusively with the 3-pin SIP-packaged A1369 family and implements Allegro's proprietary serial voltage-pulse programming protocol using three defined logic levels (VPL, VPM, VPH) applied to the VOUT terminal. It supports full OTP configuration-including sensitivity, QVO, clamp disable, and device lock-without requiring external microcontrollers or firmware.

The kit enables real-time measurement of key analog performance metrics: output noise (10 mV_p-p at 10.5 mV/G), internal bandwidth (7 kHz), chopping frequency (400 kHz), and UVLO thresholds (2.5 V low / 3 V high), all while maintaining ratiometric tracking of VCC across 4.5–5.5 V.

Key Specifications

Availability

ASEK-1369-73369-SUBKIT-T-DK is available at Aetrix Electronics and suitable for legacy design support, production line calibration, technical training, and failure analysis requiring stable component supply for discontinued Allegro sensor programming workflows.

Supply support for ASEK-1369-73369-SUBKIT-T-DK 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, headquartered in Manchester, NH.

The ASEK-1369-73369-SUBKIT-T-DK belongs to Allegro's legacy sensor evaluation tool portfolio, developed specifically to enable precision OTP programming and validation of the A1369 family's Hall-effect current sensing ICs for industrial and automotive-grade applications.

FAQ

What is the primary function of the ASEK-1369-73369-SUBKIT-T-DK?

The ASEK-1369-73369-SUBKIT-T-DK is a discontinued evaluation subkit designed exclusively to program and verify the One-Time-Programmable (OTP) parameters of the A1369EUA-10-T and A1369EUA-24-T Hall-effect current sensor ICs. It executes Allegro's proprietary voltage-pulse protocol on the VOUT pin to configure sensitivity, quiescent output voltage, temperature coefficients, and device lock-enabling end-of-line optimization before integration into current-sensing modules. ASEK-1369-73369-SUBKIT-T-DK does not operate as a standalone sensor or replace the A1369 IC.

Is ASEK-1369-73369-SUBKIT-T-DK compatible with the ACS73369 sensor?

No, ASEK-1369-73369-SUBKIT-T-DK is not compatible with the ACS73369. The subkit is engineered solely for the discontinued A1369 family (A1369EUA-10-T and A1369EUA-24-T) and relies on their unique 3-pin SIP package, OTP architecture, and voltage-level programming interface. The ACS73369 uses a different package, digital interface, and factory-programmed calibration-making ASEK-1369-73369-SUBKIT-T-DK physically and electrically incompatible with it.

Can ASEK-1369-73369-SUBKIT-T-DK be used to reprogram an already locked A1369 device?

No, ASEK-1369-73369-SUBKIT-T-DK cannot reprogram an A1369 device once its LOCK bit has been blown. The subkit supports only one-time programming: after the overall programming lock fuse is set, all OTP registers-including sensitivity, QVO, and temperature coefficients-are permanently frozen. ASEK-1369-73369-SUBKIT-T-DK provides Read mode for verification but offers no mechanism to alter or reset a locked A1369 device.

Does ASEK-1369-73369-SUBKIT-T-DK include hardware for temperature cycling validation?

No, ASEK-1369-73369-SUBKIT-T-DK does not include thermal chambers, environmental test fixtures, or automated temperature profiling hardware. It supports electrical parameter measurement (e.g., QVO drift, sensitivity TC) at discrete temperature points when used with external lab equipment, but full temperature cycling validation per A1369 spec (–40°C to +85°C) requires integration with third-party thermal test systems-not provided with ASEK-1369-73369-SUBKIT-T-DK.

What power supply requirements must be met to operate ASEK-1369-73369-SUBKIT-T-DK?

ASEK-1369-73369-SUBKIT-T-DK requires a stable, low-noise 5.0 V ±0.5 V DC supply (i.e., 4.5–5.5 V range) capable of delivering ≥12 mA, matching the A1369's specified VCC operating window. Deviations outside this range risk invalidating OTP programming sequences or producing non-ratiometric output measurements. The subkit does not regulate or condition input power-users must supply compliant voltage externally. ASEK-1369-73369-SUBKIT-T-DK functionality is fully dependent on adherence to this supply specification.