Diodes Incorporated AH1713Q-SA-7

Overview

AH1713Q-SA-7 from Diodes Incorporated is an AEC-Q100 Grade 0 qualified automotive Hall effect latch switch in SOT23 package, designed for position and speed sensing in harsh environments. It operates from 2.4V to 5.5V, features ±50 Gauss operate/release points (Bop/Brp), 100 Gauss hysteresis, and delivers open-drain output switching up to 30kHz bandwidth for BLDC motor commutation and wheel speed sensing.

For engineers reviewing the AH1713Q-SA-7 datasheet, AH1713Q-SA-7 pinout, AH1713Q-SA-7 application, or AH1713Q-SA-7 equivalent, this device supports high-reliability automotive sensing where magnetic sensitivity, thermal stability from −40°C to +150°C, and chopper-stabilized offset cancellation are critical selection criteria.

Technical Context

The AH1713Q-SA-7 implements a chopper-stabilized architecture with dynamic offset cancellation to suppress thermal drift and mechanical stress effects on magnetic thresholds. Its internal bandgap regulator supplies temperature-compensated bias to analog blocks, enabling stable Bop/Brp performance across −40°C to +150°C.

This latch IC responds to perpendicular magnetic flux density exceeding ±50 Gauss (Bop) and releases only when polarity reverses and magnitude falls below ∓50 Gauss (Brp), delivering latched output states with 100 Gauss hysteresis. The open-drain output sinks up to 20mA with 0.4V max VOL at 20mA and exhibits 30kHz sensing bandwidth under square-wave field excitation.

Key Specifications

Pinout & Package

Package: SOT23 - Surface-mount, thermally efficient, footprint-compatible with industry-standard pick-and-place equipment and reflow profiles.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar Hall latch applications.

Compared with AH1713Q-SA-7, AL33030QSA-7 trades sensitivity for wider voltage tolerance and reverse-battery robustness, while TLE4961-3U adds integrated protection at the cost of slightly reduced magnetic sensitivity and higher quiescent current.

Availability

AH1713Q-SA-7 is available at Aetrix Electronics and suitable for BLDC motor commutation, wheel speed sensing, and human-machine interface knob applications requiring stable component supply across automotive production lifecycles.

Supply support for AH1713Q-SA-7 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

Diodes Incorporated is a global semiconductor company specializing in discrete, analog, and mixed-signal solutions for automotive, industrial, and consumer markets, with ISO/TS 16949-certified manufacturing.

The AH171xQ series belongs to Diodes' AEC-Q100-qualified Hall-effect sensor product line, engineered specifically for high-reliability position and speed sensing in automotive powertrain, chassis, and body electronics.

FAQ

What is the magnetic polarity response of AH1713Q-SA-7?

AH1713Q-SA-7 activates its open-drain output (pulls low) when a South pole with ≥50 Gauss flux density is applied perpendicular to the top surface of the SOT23 package. The output remains latched until a North pole of sufficient strength (≤−50 Gauss) is detected, at which point it releases. This polarity behavior is fixed and non-invertible per device variant.

Can AH1713Q-SA-7 operate reliably at 150°C ambient temperature?

Yes - AH1713Q-SA-7 is AEC-Q100 Grade 0 qualified with guaranteed operation from −40°C to +150°C ambient. Its chopper-stabilized design and internal bandgap regulator maintain Bop/Brp stability and output functionality across this full range, validated per JESD22-A108 and JESD22-A103 test standards.

What is the recommended pull-up resistor value for the open-drain output?

A 1kΩ to 10kΩ pull-up resistor is recommended depending on rise time and bus loading requirements. With RL = 1kΩ and CL = 20pF, typical output rising time is 0.2–1µs. Lower resistance improves speed but increases power consumption; higher resistance reduces current draw but slows edge transition, especially in noisy environments.

Does AH1713Q-SA-7 require an external bypass capacitor?

Yes - a 10nF to 100nF ceramic capacitor between VDD and GND is mandatory per the datasheet. This stabilizes the internal bandgap regulator, suppresses supply-line noise, and ensures reliable power-on state initialization within 38µs. Omission risks erratic startup behavior or false triggering during voltage ramp-up.