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AH3769Q

High-Voltage, Low-Sensitivity Automotive Hall Effect Latch

Description

The AH3769Q is an AECQ100 qualified high voltage low 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 AH3769Q 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 AH3769Q is available in industry standard SOT23and 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 +220G and -220G 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) 170
Operating Point Bop (Bops +ve/ Bopn -ve) Gauss (Typ) 220
Operating Point Bop (Bops +ve/ Bopn -ve) Gauss (Max) 250
Release Point Brp (Brps +ve/Brpn -ve) Gauss (Min) -250
Release Point Brp (Brps +ve/Brpn -ve) Gauss (Typ) -220
Release Point Brp (Brps +ve/Brpn -ve) Gauss (Max) -170
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
AH3769Q-P-B Arrow Electronics 988 7/22/2019 Buy Now Americas
AH3769Q-P-B Digi-Key Electronics 767 7/22/2019 Buy Now Americas
AH3769Q-P-B Mouser Electronics Inc. 894 7/22/2019 Buy Now Americas
AH3769Q-SA-7 Digi-Key Electronics 699 7/22/2019 Buy Now Americas
AH3769Q-SA-7 Mouser Electronics Inc. 957 7/22/2019 Buy Now Americas