Diodes Incorporated — Analog and discrete power solutions
SC59

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

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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
Back to Hall Effect Latches and Switches

AH1809

Micropower Omnipolar Hall Effect Switch

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Description

The AH1809 is a low sensitivity, micropower Omnipolar Hall Effect switch IC designed for battery powered consumer to industrial equipment such as smart e-meters. Based on two sensitive Hall Effect plates and a chopper stabilized architecture the AH1809 provides a reliable solution over the whole operating range. To support portable and battery powered equipment the design has been optimized to operate over the supply range of 2.5V to 5.5V and consumes only 24uW with a supply of 3V. To minimize PCB space AH1809 is also packaged in samll low profile package. The single open drain output can switched on with either a North or South pole of sufficient strength. When the magnetic flux density (B) perpendicular to the package is larger than operate point (Bop) the output is switched on (pul°C low). The output is turned off when B becomes lower than the release point (Brp). The output will remain off when there is no magnetic field. The AH1809 is available in a small low profile SOT553 and industry standard SC59 and SIP-3 packages.

Application(s)

•  Smart E-meters •  Tamper protection switch •  Level detect •  Doors, lids and trays position detect switches •  On/Off contact-less switch

Product Specifications

Product Parameters

Compliance(Only Automotive supports PPAP) Standard
AEC Qualified No
Type Omnipolar
Outputs Single
Output Type Open Drain
Active Output State (B > Bop) Low
Inactive Output State (B < Brp) High-Z
Operating Voltage (V) 2.5 to 5.5
Average Supply Current (mA) 0.008
Min Operating Point Bop (Bops +ve/ Bopn -ve) (Gauss) 90
Typ Operating Point Bop (Bops +ve/ Bopn -ve) (Gauss) 130
Max Operating Point Bop (Bops +ve/ Bopn -ve) (Gauss) 185
Min Release Point Brp (Brps +ve/ Brpn -ve) (Gauss) 80
Typ Release Point Brp (Brps +ve/ Brpn -ve) (Gauss) 115
Max Release Point Brp (Brps +ve/ Brpn -ve) (Gauss) 170
Operating Ambient Temperature (°C) -40 to 125

Technical Documents

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-2512 2021-04-16 2021-07-16 Qualified Additional Assembly & Test (A/T) Site