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What is AH3764Q?

This electronic component, produced by the manufacturer "Diodes Incorporated", performs the same function as "HIGH-VOLTAGE / HIGH-SENSITIVITY AUTOMOTIVE HALL-EFFECT LATCH".


AH3764Q Datasheet PDF - Diodes Incorporated

Part Number AH3764Q
Description HIGH-VOLTAGE / HIGH-SENSITIVITY AUTOMOTIVE HALL-EFFECT LATCH
Manufacturers Diodes Incorporated 
Logo Diodes Incorporated Logo 


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Description
The AH3764Q is an AEC-Q100 qualified high-voltage, high-sensitivity
Hall-Effect latch IC designed for brushless DC-motor commutation,
speed measurement, angular or linear encoders and position sensors
in automotive applications. To support a wide range of demanding
applications, the design is optimized to operate over the supply range
of 3.0V to 28V. With chopper stabilized architecture and an internal
bandgap regulator to provide temperature compensated supply for
internal circuits, the AH3764Q provides a reliable solution over the
whole operating range. For robustness and protection, the device has
a reverse blocking diode with a Zener clamp on the supply. The
output has an over current limit and a Zener clamp.
AH3764Q
HIGH-VOLTAGE, HIGH-SENQSITIVITY
AUTOMOTIVE HALL-EFFECT LATCH
Pin Assignments
(Top View)
GND 2
3 OUTPUT
1 VDD
SC59 and SOT23
The single, open-drain output can be switched on with South pole of
sufficient strength and switched off with North pole of sufficient
strength. When the magnetic flux density (B) perpendicular to the
package is larger than the operate point (Bop) the output is switched
on (pulled low). The output is held latched until magnetic flux density
reverses and becomes lower than the release point (Brp).
The magnetic operating and release polarity is opposite for SOT23
and SC59 packages. SOT23 and SIP-3 packages will require south
pole to the part marking side to operate while SC59 will require south
pole to the non-part marking side.
(Top View)
SIP-3
3. OUTPUT
2. GND
1. VDD
Features
Bipolar Latch Operation (South Pole: On, North Pole: off)
High Sensitivity: Bop and Brp of +40G and -40G Typical
Single Open-Drain Output with Overcurrent Limit
3.0V to 28V Operating Voltage Range
Chopper Stabilized Design Provides
Superior Temperature Stability
Minimal Switch Point Drift
Enhanced Immunity to Stress
Good RF Noise Immunity
Reverse Blocking Diode
Zener Clamp on Supply and Output Pins
-40C to +150C Operating Temperature
ESD: HBM 8kV, CDM: >2kV
AEC-Q100 Grade 0 Qualified
Industry Standard SC59, SOT23 and SIP-3 Packages
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
Applications
Brushless DC-Motor Commutation
Revolution Per Minute (RPM) Measurement
Angular and Linear Encoder and Position Sensing and Indexing
Flow Meters
Contactless Commutation, Speed Measurement and Angular
Position Sensing/Indexing in Automotive Applications
Notes:
1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.
2. See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green"
and Lead-free.
3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl)
and <1000ppm antimony compounds.
AH3764Q
Document number: DS38073 Rev. 2 - 2
1 of 15
www.diodes.com
July 2015
© Diodes Incorporated

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AH3764Q equivalent
Typical Operating Characteristics
Output Switch Operate and Release Points (Magnetic Thresholds) Bop and Brp
AH3764Q
Q
100 TA = +25oC
80
60
40
20
0
-20
-40
-60
-80
-100
2468
Hyst
Bop
Brp
10 12 14 16 18 20 22 24 26 28 30
Supply Voltage (V)
Switch Points Bop and Brp vs Supply Voltage
100 VDD = 3V
80
60
40
20
0
-20
-40
-60
-80
-100
-50
-25
0
Hyst
Bop
Brp
25 50 75 100 125 150 175
Temperature (oC)
Switch Points Bop and Brp vs Temperature
100 VDD = 12V
80
60
40
20
0
-20
-40
-60
-80
-100
-50
-25
0
Hyst
Bop
Brp
25 50 75 100 125 150 175
Temperature (oC)
Switch Points Bop and Brp vs Temperature
Supply Current
5.0
TA = +25 C
4.0
3.0
2.0
1.0
0.0
2 4 6 8 10 12 14 16 18 20 22 24 26 28 30
Supply Voltage (V)
Supply Current vs Supply Voltage
100 VDD = 28V
80
60
40
20
0
-20
-40
-60
-80
-100
-50
-25
0
Hyst
Bop
Brp
25 50 75 100 125 150 175
Temperature (oC)
Switch Points Bop and Brp vs Temperature
4.0
3.8
3.5
3.3
3.0
2.8
2.5
2.3
2.0
-50
-25
28V
3V 5V 12V
0 25 50 75 100 125 150 175
Temperature (oC)
Supply Current vs Temperature
AH3764Q
Document number: DS38073 Rev. 2 - 2
5 of 15
www.diodes.com
July 2015
© Diodes Incorporated


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Featured Datasheets

Part NumberDescriptionMFRS
AH3764QThe function is HIGH-VOLTAGE / HIGH-SENSITIVITY AUTOMOTIVE HALL-EFFECT LATCH. Diodes IncorporatedDiodes Incorporated

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