Diodes Incorporated
SC59

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U DFN2020 3

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U DFN2020 6 Type F

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AH1802 (Not Recommended for new design)

NRND = Not Recommended for New Design

High Sensitivity Micropower Omnipolar Hall Effect Switch

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Description

AH1802 is comprised of two Hall effect plates and an open-drain output driver, mainly designed for battery-operation, hand-held equipment (such as Cellular and Cordless Phone, PDA). The total power consumption in normal operation is typically 24μW with a 3V power source. Either north or south pole of sufficient strength will turn the output on. The output will be turned off under no magnetic field. While the magnetic flux density (B) is larger than operating point (Bop), the output will be turned on (low), the output is held until B is lower than release point (Brp), then turned off.

Application(s)

  • Cover switch in clam-shell cellular phones
  • Cover switch in Notebook PC/PDA
  • Contact-less switch in consumer products

Product Specifications

Product Parameters

# Outputs 1
ActiveHigh orLow Low
Compliance (Only Automotive supports PPAP) No
Average Supply Current (µA) 8
Max OperatingPoint ±Bop(Guass) 40
Max ReleasePoint ±Brp(Guass) N/A
Min OperatingPoint ±Bop (Guass) 20
Min ReleasePoint ±Brp(Guass) 10
Operating Ambient Temperature Range (°C) -40 to 85
Operating Voltage (V) 2.5 to 5.5
Output Type Open Drain
AEC Qualified No
Sensitivity High
Typ OperatingPoint ±Bop(Guass) 28
Typ ReleasePoint ±Brp(Guass) 20

Technical Documents

Evaluation Boards and User Guides

Recommended Soldering Techniques

TN1.pdf

RoHS CofC

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-2310 2018-01-24 2018-01-24 Device End of Life (EOL)