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AH3766Q

Automotive High Voltage High Sensitivity Hall Effect Latch

Description

The AH3766Q is an AECQ100 qualified high voltage medium sensitivity Automotive Hall Effect latch IC designed for brushless DC motor commutation, speed measurement, angular or linear encoders and position sensors in automotive applications. To support wide range of demanding applications, the design has been optimized to operate over the supply range of 3.0V to 28V. With chopper stabilized architecture and an internal bandgap regulator to provide temperature compensated supply for internal circuits, the AH3766Q provides a reliable solution over the whole operating range. For robustness and protection, the device has a reverse blocking diode with a Zener clamp on the supply. The output has a current limit and a Zener clamp. The single open drain output can be switched on with South pole of sufficient strength and switched off with North pole of sufficient strength. When the magnetic flux density (B) perpendicular to the package is larger than the operate point (Bop) the output is switched on (pulled low). The output is held latched until magnetic flux density reverses and becomes lower than the release point (Brp). The AH3766Q is available in industry standard SOT23 and SIP-3 packages.

Application

Automotive motor commutation, position control and speed sensing. Window lifter, Sun roof, Wiper, Tailgates, Power Seat, water, oil and fuel pumps

Features

  • Bipolar Latch Operation (South Pole: On, North Pole: off)
  • High Sensitivity: Bop and Brp of +110G and -110G Typical
  • Single Open Drain Output with Current Limit
  • 3.0V to 28V Operating Voltage Range
  • Chopper Stabilized Design Provides
         o Superior Temperature Stability
         o Minimal Switch Point Drift
         o Enhanced Immunity to Stress
  • Good RF Noise Immunity
  • Reverse Blocking Diode and Zener Clamp on Supply
  • -40C to 150C Operating Temperature
  • ESD: HBM > 8KV, CDM: >2kV
  • AECQ100 Grade 0 Qualified
  • Industry Standard SOT23 and SIP-3L Packages
  • Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
  • Halogen and Antimony Free. “Green” Device (Note 3)

Product Specifications

Product Parameters

Qualified to AECQ10x Yes
Automotive Compliant PPAP Yes
Output Type Single, Open Drain, Active Low
Operating Voltage 3 to 28 V
Average Supply Current 3 mA
Output Current Capability 30 mA
Grade -
Operating Point Bop (Bops +ve/ Bopn -ve) Gauss (Min) 80
Operating Point Bop (Bops +ve/ Bopn -ve) Gauss (Typ) 110
Operating Point Bop (Bops +ve/ Bopn -ve) Gauss (Max) 140
Release Point Brp (Brps +ve/Brpn -ve) Gauss (Min) -140
Release Point Brp (Brps +ve/Brpn -ve) Gauss (Typ) -110
Release Point Brp (Brps +ve/Brpn -ve) Gauss (Max) -80
Operating Ambient Temperature -40 to 150 °C

Related Content

Packages
SIP-3 (Ammo)
SIP-3 (Bulk)
SOT23

Applications

Quality & Reliability

Technical Documents

Recommended Soldering Techniques
Orderable Part Number Authorized Distributor Quantity Inventory Date Buy Online Region
AH3766Q-P-B Arrow Electronics 995 7/22/2019 Buy Now Americas
AH3766Q-P-B Digi-Key Electronics 830 7/22/2019 Buy Now Americas
AH3766Q-SA-7 Arrow Electronics 732 7/22/2019 Buy Now Americas
AH3766Q-SA-7 Digi-Key Electronics 2869 7/22/2019 Buy Now Americas
AH3766Q-SA-7 Mouser Electronics Inc. 1760 7/22/2019 Buy Now Americas