AH3763Q
HIGH-VOLTAGE, HIGH-SENSITIVITY
AUTOMOTIVE HALL-EFFECT LATCH
Description
Pin Assignments
The AH3763Q 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 AH3763Q 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 overcurrent limit and a Zener clamp.
(Top View)
3 OUTPUT
1 VDD
GND 2
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).
(Top View)
3. OUTPUT
2. GND
VDD
1.
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.
SIP-3
Applications
Features
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Brushless DC-Motor Commutation
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Bipolar Latch Operation (South Pole: On, North Pole: off)
High Sensitivity: Bop and Brp of +30G and -30G Typical
Single Open-Drain Output with Overcurrent Limit
3.0V to 28V Operating Voltage Range
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
Chopper Stabilized Design Provides
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.
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Superior Temperature Stability
Minimal Switch Point Drift
Enhanced Immunity to Stress
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Good RF Noise Immunity
Reverse Blocking Diode
Zener Clamp on Supply and Output Pins
-40°C to +150°C 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)
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.
1 of 15
www.diodes.com
July 2015
© Diodes Incorporated
AH3763Q
Document number: DS38072 Rev. 2 - 2
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