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AH375 Schematic ( Datenblatt PDF ) - Diodes Incorporated

Teilenummer AH375
Beschreibung SINGLE PHASE HALL EFFECT LATCH
Hersteller Diodes Incorporated
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Gesamt 9 Seiten
		
AH375 Datasheet, Funktion
AH375
SINGLE PHASE HALL EFFECT LATCH
Description
Pin Assignments
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.
(Top View)
SIP-3L
3. OUT
2. GND
1. Vdd
(Top View)
GND 2.
SC59
3. OUT
1. Vdd
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)
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
Vdd
AH375
Document number: DS31172 Rev. 6 - 2
RL
C1
AH375 3
2
Output
GND
1 of 9
www.diodes.com
July 2010
© Diodes Incorporated






AH375 Datasheet, Funktion
Marking Information
(1) SIP-3L
Part Number
AH375
SINGLE PHASE HALL EFFECT LATCH
(Top View)
375
Y WW X
Y : Year : 0~9
WW : Week : 01~52, "52" represents
52 and 53 week
X : Internal Code : A~Z : Green
a~z : Lead Free
(2) SC59 (Commonly known as SOT23 in Asia)
(Top View)
XX Y W X
XX : Identification code
Y : Year 0~9
W : Week : A~Z : 1~26 week;
a~z : 27~52 week; z represents
52 and 53 week
X : A~Z : Green
a~z : Lead Free
Part Number
AH375
Package
SC59
Identification Code
P3
AH375
Document number: DS31172 Rev. 6 - 2
6 of 9
www.diodes.com
July 2010
© Diodes Incorporated

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