AH182/AH183

Low power Hall Effect Switch

This datasheet contains new product information. Anachip Corp. reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of

this product. No rights under any patent accompany the sale of the product.

Rev. 0.3 May 7, 2004

1/6

Features

- Micropower operation

- 2.5V to 5.5V battery operation

- Offset Canceling Technology

- Superior temperature stability

- Extremely Low Switch-Point Drift

- Insensitive to Physical Stress

- -40

°C to 85°C operating temperature

- Low profile 3 pin SIP/SOT23 package

Applications

- Cover detector

- Speed measurement

- Home safety

Pin Assignments

(SIP3 package)

( SOT23 package)

1. VCC

2. GND

3.

1. VCC

3.

GND 2.

(Top view)

Output

Output

General Description

AH182/AH183 is a three-terminal Hall effect sensor

device with a output driver, mainly designed for

battery–operation, hand-held equipment(such as

Cellular and cordless Phone, PDA) The total

operation power is down to 15uW in the 2.75V

supply.

The south pole of sufficient strength will turn the

output on in SIP3 but the north pole of sufficient

strength will turn the output on in SOT23 package.

The output will be turned off under no magnetic

field.

While the magnetic flux density (B) is larger than

operate point (Bop), the output will be turned on

(low), the output is latched until B is lower than

release point (Brp), then turned off that. The

difference between AH182 and AH183 is the former

consumes less power than that of the latter in the

Hall sensor operation.

Pin Descriptions

Name

P/I/O

Pin #

Description

Vcc

P/I

1

Power Supply Input

GND

P

2

Ground

Output

O

3

Output Pin

Ordering Information

AH182/AH183 X -X X X

Packing

Blank : Tube or Bulk

A

: Tape & Reel

P: SIP-3L

W: SOT23-3L

Package

Lead

L : Lead Free

Blank: Normal

Wafer Body

Blank or

A~Z : if necessary

to specify

CMOS Hall-effect Switch