AH336xQ / AH339xQ, Automotive, Unipolar Hall-Effec

By Diodes Incorporated 65

AH336xQ / AH339xQ, Automotive, Unipolar Hall-Effec

Diodes' AH336xQ and AH339xQ are automotive-compliant, high-performance, unipolar Hall-effect sensors qualified to AEC-Q100 grade 0 with an extended temperature range of -40°C to +150°C.

Using a chopper-stabilized architecture and an internal bandgap regulator, the AH336xQ and AH339xQ provide a reliable solution over the entire operating range. For robustness and protection, they have supply rail reverse blocking with Zener clamp and over-current limit with Zener clamp on the output. When the magnetic flux density (B) perpendicular to the package marking is larger than the operate point (BOP), the output is switched on (pulled low) and is held on until the magnetic flux density B is lower than the release point (BRP) or the opposite pole is applied. The magnetic operating and release polarity are opposite for SOT23 and SC59 packages. The SOT23, SIP-3 (ammo pack), and SIP-3 (bulk pack) packages require south pole to the part marking side to operate while SC-59 requires north pole to the part marking side.

Features
  • High-performance Hall-effect, unipolar range
    • Ten sensitivity options with excellent tolerance, a tight operating window, and low-temperature coefficients for switch points
    • Magnetic characteristics specified over the entire operating range
    • Fast “power on” of 10 µs and response time of 3.75 µs with wide bandwidth
  • Product flexibility
    • Designed for a wide range of applications: 3 V to 28 V and a -40°C to 150°C temperature range
    • Industry-standard SOT23, SC-59, and SIP-3 package options with SC-59 providing inverse operating magnetic polarity detection to SOT23
    • Open-drain output for pull-up voltage level flexibility
    • High levels of integration (reduced component count)
  • Stability, reliability, and robustness
    • Chopper-stabilized design to provide minimal switch-point drift
    • Superior temperature and supply line stability
    • Supply rail and output clamps with output current limit
    • 32 V reverse-voltage protection
    • High ESD (HBM) rating of 8 kV
Applications
  • Position and proximity sensing in automotive applications
  • 12 V open and close detect
  • Level detect
  • Flow meters
  • Contact-less switches

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