Diodes AH3761 Manuel d'utilisateur télécharger pdf

AH3761

HIGH SENSITIVITY HALL EFFECT LATCH

AH3761 Rev. 1 1 of 9 SEPTEMBER 2009

www.diodes.com © Diodes Incorporated

• 3V to 28V DC operation voltage

• Chopper stabilized

• Wide operating voltage range

• Built-in power reverse protection

• Built-in voltage overshoot protection

• Output short circuit protection

• Open drain pre-driver

• SIP3 and SC59 (Commonly known as SOT23 in Asia)

: Available in “Green” Molding Compound (No Br, Sb)

• Lead Free Finish/RoHS Compliant (Note 1)

AH3761 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 bandgap regulator is used to

provide temperature compensated supply voltage for internal

circuits and allows a wide operating supply range.

If a magnetic flux density larger than threshold Bop, DO is turned

on (low). The output state is held until a magnetic flux density

reversal falls below Brp causing DO to be turned off (high).

• Brush-less DC Motor Commutation

• RPM Detection

• Consumer and industrial position sensor

• Flow meters

Typical Application Circuit

AH3761

Vdd

Output

GND

Features

General Description

Application

1 2 3 4 5 6 7 8 9

Résumé du contenu

Page 1 - Application

AH3761HIGH SENSITIVITY HALL EFFECT LATCH AH3761 Rev. 1 1 of 9

Page 2 - Pin Descriptions

AH3761HIGH SENSITIVITY HALL EFFECT LATCH AH3761 Rev. 1 2 of 9

Page 3 - Block Diagram

AH3761HIGH SENSITIVITY HALL EFFECT LATCH AH3761 Rev. 1 3 of 9

Page 4 - (Output Voltage)

AH3761HIGH SENSITIVITY HALL EFFECT LATCH AH3761 Rev. 1 4 of 9

Page 5 - Performance Characteristics

AH3761HIGH SENSITIVITY HALL EFFECT LATCH AH3761 Rev. 1 5 of 9

Page 6 - Diodes Incorporated

AH3761HIGH SENSITIVITY HALL EFFECT LATCH AH3761 Rev. 1 6 of 9

Page 7

AH3761HIGH SENSITIVITY HALL EFFECT LATCH AH3761 Rev. 1 7 of 9

Page 8

AH3761HIGH SENSITIVITY HALL EFFECT LATCH AH3761 Rev. 1 8 of 9

Page 9

AH3761HIGH SENSITIVITY HALL EFFECT LATCH AH3761 Rev. 1 9 of 9

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Diodes AH3761 Manuel d'utilisateur

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