Diodes Incorporated AH33xxQ/376xQ

AH336xQ and AH339xQ are new Automotive Compliant high- performance Unipolar Hall Effect sensors qualified to AEC-Q100 Grade 0 with an extended temperature range of -40 to +150^oC. 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 overcurrent 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.

Benefits

• High-Performance Hall Effect Unipolar Range
  • 10 sensitivity options with excellent tolerance, tight operating window (less magnetic spread) and low temperature coefficients for switch points
  • Magnetic characteristics specified over the entire operating range
  • Fast “power on” of 10µs and response time of 3.75µs with wide bandwidth
• Product Flexibility
  • Designed for a wide range of applications: 3 to 28V and -40 to +150^oC
  • 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
  • 32V reverse voltage protection
  • High ESD (HBM) rating of 8kV

Circuit Functions

• Position and Proximity Sensing in Automotive Applications
• 12V Open and Close Detect
• Level Detect
• Flow Meters
• Contact-less switches

Product portfolio

AH3762Q to AH3769Q – high voltage, automotive, hall effect latch product family with market leading performance

AHhigh-performance376xQ is a family of high-voltage, Hall-Effect Latches, AEC-Q100-qualified for automotive applications. A PPAP is available on request.

The product range is specifically designed for the commutation of brushless DC motors, speed measurement and incremental rotary and linear encoders/position sensors in automotive applications.

Providing eight high-tolerance, magnetic operate and release points (Bop and Brp) ranging from a typical 25G to 220G, this new product family, with open-drain output, provides a solution for a wide range of applications.

To enhance system reliability, the entire family is specified over the whole operating range of 3 to 28V and -40 to +150oC. The family incorporates reverse blocking diodes, VDD and output Zener clamp, output current limit, high ESD ratings (8kV HBM, 800V MM and 2kV CDM) and 32V load dump capability.

All the variants are available in the industry standard SOT23 and SIP-3 packages, with selected products also in SC59.

Benefits

The AH376xQ series provides a reliable high-voltage, high-performance Hall -Effect latch for automotive application.

• High Performance Hall-Effect Latch Family
  • 8 sensitivity options with high-tolerance, tight-operating windows (less  magnetic spread) and low -temperature coefficients for switch points
  • Magnetic characteristics specified over the whole operating range
  • Fast power-on time of 10µs typical and response time of 3.75µs typical with wide bandwidth
• Product Flexibility
  • Designed for a wide range of applications: 3 to 28V and -40 to 150oC
  • Open drain output for pull-up flexibility
  • Industry standard SC59, SOT23 and SIP-3 packages
  • Selected devices in SC59 packages provide options for opposite magnetic field polarity switching
• Stability, Reliability and Robustness
  • Chopper stabilized design to provide minimal switch-point drift
  • Superior temperature and supply line stability
  • Input and output clamps with output overcurrent limit
  • Reverse voltage protection and 32V load dump capability
  • High ESD  ratings: 8kV HBM, 800V MM and 2kV CDM
  • AEC-Q100 Grade 0 (-40oC to +150oC) qualification

Applications

• Automotive applications
• Window power-lift and sun roof
• Tailgate open/close BLDC motors
• Seat adjust motors
• Seat and dashboard cooling fans
• Speed measurements
• Incremental linear and rotary encoder and position sensors

Product portfolio