Diodes Incorporated

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Back to Hall Effect Latches and Switches


27V Open-Drain Hall Effect Latch

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The AH3713/AH3713A/AH3714/AH3714A/AH3715/AH3716/AH3717 is a high-voltage Hall-effect latch IC designed for commutation of brushless DC motors, flow meters, linear encoders, and position sensors in industrial and consumer home appliances and personal care applications. To support a wide range of demanding applications, the design is optimized to operate over the supply range of 3.0V to 27V. With chopper-stabilized architecture and an internal bandgap regulator to provide temperature compensated supply for internal circuits, the device provides a reliable solution over the whole operating range. The output has an overcurrent limit.

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).


  • Bipolar Latch (South Pole: On, North Pole: Off)
  • 0V to 27V Operating Voltage Range
  • 40V Load Dump Protection
  • Sensitivity Options: BOP and BRP of ±30G to ±140G Typical
  • Resistant to Physical Stress
  • Single, Open-Drain or Internal Pullup Output with Overcurrent Limit
  • Chopper-Stabilized Design Provides
    • Superior Temperature Stability
    • Minimal Switch-Point Drift
    • Enhanced Immunity to Stress
  • Good RF Noise Immunity
  • -40°C to +125°C Operating Temperature
  • ESD HBM: 8kV, CDM: 1kV
  • Industry Standard SC59, SOT23 (Type S) and SIP-3 (Bulk Pack) Packages
  • Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
  • Halogen and Antimony Free. “Green” Device (Note 3)
  • For automotive applications requiring specific change control (i.e. parts qualified to AEC-Q100/101/104/200, PPAP capable, and manufactured in IATF 16949 certified facilities), please contact us or your local Diodes representative. https://www.diodes.com/quality/product-definitions/


  • Brushless DC motor commutation
  • Revolution per minute (RPM) measurement
  • Flow meters
  • Angular and linear encoders and position sensors
  • Contactless commutation, speed measurement, and angular position sensing/indexing in consumer home appliances, office equipment, and industrial applications

Product Specifications

Product Parameters

Compliance(Only Automotive supports PPAP) Standard
AEC Qualified No
Type Latch
Outputs Single
Output Type Open Drain
Active Output State (B > Bop) Low
Inactive Output State (B < Brp) High-Z
Operating Voltage (V) 3 to 27
Average Supply Current (mA) 2.8
Min Operating Point Bop (Bops +ve/ Bopn -ve) (Gauss) 15
Typ Operating Point Bop (Bops +ve/ Bopn -ve) (Gauss) 30
Max Operating Point Bop (Bops +ve/ Bopn -ve) (Gauss) 45
Min Release Point Brp (Brps +ve/ Brpn -ve) (Gauss) -45
Typ Release Point Brp (Brps +ve/ Brpn -ve) (Gauss) -30
Max Release Point Brp (Brps +ve/ Brpn -ve) (Gauss) -15
Output Current Capability (mA) 60
Operating Ambient Temperature (°C) -40 to 125

Related Content


Technical Documents

Recommended Soldering Techniques


Product Change Notices (PCNs)

A PCN may only apply to specific orderable part numbers in this datasheet. Please refer to the corresponding PCN to see the exact orderable part number(s) affected.

PCN # Issue Date Implementation Date Subject
PCN-2611 2023-04-03 2023-07-03 Qualified Additional Assembly Test Sites, Die Revision and Tape and Reel Packing Quantity.