Diodes AH375 Manuel d'utilisateur télécharger pdf

AH375

SINGLE PHASE HALL EFFECT LATCH

AH375

Document number: DS31172 Rev. 6 - 2

1 of 9

www.diodes.com

July 2010

Description

AH375 is an integrated Hall-Effect latched sensor designed

for electronic commutation of brush-less DC motor

applications. The device includes an on-chip Hall voltage

generator for magnetic sensing, a comparator that amplifies

the Hall voltage, and a Schmitt trigger to provide switching

hysteresis for noise rejection, and open drain output. An

internal band-gap regulator provides a temperature

compensated supply voltage for internal circuits and allows a

wide operating supply range.

When the magnetic flux density (B) is larger than operate

point (Bop), output is switched on (OUT pin is pulled low).

The output state is held on until a magnetic flux density

reversal falls below Brp. When B is less than Brp, the output

is switched off.

The AH375 is available in SIP-3L and SC59 packages.

Features

• Bipolar Hall-Effect latch sensor

• 2.2V to 20V DC Operating voltage

• Temperature compensation

• Open drain pre-driver

• 25mA maximum output sink current

• Operating temperature: -40°C to +125°C

• SIP-3L and SC59 packages

(SC59 is commonly known as SOT23 in Asia)

• Green Molding Compound (No Br, Sb) (Note 1)

Pin Assignments

(Top View)

Vdd

GND

OUT

SIP-3L

1. Vdd

GND 2.

3. OUT

(Top View)

SC59

Applications

• Brush-Less DC Motor

• Brush-Less DC Fan

• Revolution Counting

• Speed Measurement

Notes: 1. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied. Please visit our website at

http://www.diodes.com/products/lead_free.html.

Typical Application Circuit

AH375

Output

GND

Vdd

1 2 3 4 5 6 7 8 9

Résumé du contenu

Page 1 - (Top View)

AH375SINGLE PHASE HALL EFFECT LATCH AH375 Document number: DS31172 Rev. 6 - 2 1 of 9 www.diodes.com July 2010 © Diodes Incorporated Description A

Page 2 -

AH375SINGLE PHASE HALL EFFECT LATCH AH375 Document number: DS31172 Rev. 6 - 2 2 of 9 www.diodes.com July 2010 © Diodes Incorporated Pin Descriptio

Page 3 - (SIP-3L)

AH375SINGLE PHASE HALL EFFECT LATCH AH375 Document number: DS31172 Rev. 6 - 2 3 of 9 www.diodes.com July 2010 © Diodes Incorporated Electrical Cha

Page 4 - Power Dissipation Curve

AH375SINGLE PHASE HALL EFFECT LATCH AH375 Document number: DS31172 Rev. 6 - 2 4 of 9 www.diodes.com July 2010 © Diodes Incorporated Performance Ch

AH375SINGLE PHASE HALL EFFECT LATCH AH375 Document number: DS31172 Rev. 6 - 2 5 of 9 www.diodes.com July 2010 © Diodes Incorporated Ordering Infor

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AH375SINGLE PHASE HALL EFFECT LATCH AH375 Document number: DS31172 Rev. 6 - 2 6 of 9 www.diodes.com July 2010 © Diodes Incorporated Marking Inform

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AH375SINGLE PHASE HALL EFFECT LATCH AH375 Document number: DS31172 Rev. 6 - 2 7 of 9 www.diodes.com July 2010 © Diodes Incorporated Package Outlin

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AH375SINGLE PHASE HALL EFFECT LATCH AH375 Document number: DS31172 Rev. 6 - 2 8 of 9 www.diodes.com July 2010 © Diodes Incorporated Package Outlin

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