Diodes Incorporated — Analog and discrete power solutions
SC59

Image shown is for reference only. Actual package may vary. Refer to the product data sheet for package details.

SC59-3D-image.png
SIP 3 Ammo Pack

Image shown is for reference only. Actual package may vary. Refer to the product data sheet for package details.

SIP-3-Ammo-Pack-3D-image.png
SIP 3 3D image

Image shown is for reference only. Actual package may vary. Refer to the product data sheet for package details.

SIP-3-3D-image.png
SOT23

Image shown is for reference only. Actual package may vary. Refer to the product data sheet for package details.

SOT23.png
Back to Inactve Datasheet Archive

AH3775 (NRND)

NRND = Not Recommended for New Design

28V Open-drain Hall Effect Latch

Contact Sales

Log in or register to manage email notifications about changes to datasheets or PCNs for this part.

Description

The AH3775 is a high voltage medium sensitivity Hall Effect latch IC designed for commutation of brushless DC motor, flow meters, linear encoders and position sensors in industrial and consumer home appliance and personal care 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 AH3775 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 AH3775 is available in industry standard SC59, SOT23 and SIP-3 package.

Feature(s)

  • Bipolar Latch Operation (South Pole: On, North Pole: off)
  • 3.0V to 28V Operating Voltage Range
  • High Sensitivity: Bop and Brp of +25Gand -25G typical
  • Single Open Drain Output with Current Limit
  • Chopper Stabilized Design Provides
  • Superior Temperature Stability
  • Minimal Switch Point Drift
  • Enhanced Immunity to Stress
  • Good RF Noise Immunity
  • Reverse Blocking Diode and Zener Clamp on Supply
  • -40°C to 125°C Operating Temperature
  • ESD (HBM) > 6kV
  • Industry Standard SC59, SOT23 and SIP-3 Packages
  • Totally Lead-Free & Fully RoHS Compliant
  • Halogen and Antimony Free. “Green” Device

Application(s)

  • Brushless DC Motor Commutation
  • Revolution Per Minute (RPM) Measurement
  • Flow Meters
  • Angular and Linear Encoder and Position Sensors
  • Contact-less Commutation, Speed Measurement and Angular Position Sensing/Indexing in Consumer Home Appliances, Office Equipments and Industrial Applications

Product Specifications

Product Parameters

Active Output State (B > Bop) Low
AEC Qualified No
Compliance (Only Automotive supports PPAP) No
Average Supply Current (µA) 3
Average Supply Current (mA) 3
Compliance (Only Automotive supports PPAP) Standard
Compliance(Only Automotive supports PPAP) Standard
Inactive Output State (B < Brp) High-Z
Max Operating Point Bop (Bops +ve/ Bopn -ve) (Gauss) 90
Max Release Point Brp (Brps +ve/ Brpn -ve) (Gauss) -50
Min Operating Point Bop (Bops +ve/ Bopn -ve) (Gauss) 50
Min Release Point Brp (Brps +ve/ Brpn -ve) (Gauss) -90
Operating Ambient Temperature (°C) -40 to 125
Operating Ambient Temperature (°C) -40 to 125
Operating Point Bop (Bops +ve/ Bopn -ve) Gauss (Max) 90
Operating Point Bop (Bops +ve/ Bopn -ve) Gauss (Min) 50
Operating Point Bop (Bops +ve/ Bopn -ve) Gauss (Typ) 70
Operating Voltage (V) 3 to 28
Operating Voltage (V) 3 to 28
Output Current Capability (mA) 30
Output Current Capability (mA) 30
Output Type Open Drain
Outputs Single
AEC Qualified No
Release Point Brp (Brps +ve/Brpn -ve) Gauss (Max) -50
Release Point Brp (Brps +ve/Brpn -ve) Gauss (Min) -90
Release Point Brp (Brps +ve/Brpn -ve) Gauss (Typ) -70
Typ Operating Point Bop (Bops +ve/ Bopn -ve) (Gauss) 70
Typ Release Point Brp (Brps +ve/ Brpn -ve) (Gauss) -70
Type Latch

Technical Documents

Recommended Soldering Techniques

TN1.pdf

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-2672 2024-03-11 2024-09-07 Device End of Life (EOL)