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AH3764Q

Diodes Incorporated
Part Number AH3764Q
Manufacturer Diodes Incorporated
Description HIGH-VOLTAGE / HIGH-SENSITIVITY AUTOMOTIVE HALL-EFFECT LATCH
Published Aug 1, 2015
Detailed Description PRELIMINARY - CONFIDENTIAL Description NOT RECOMMENDED FOR NEW DESIGN USE AH3724Q AH3764Q HIGH-VOLTAGE, HIGH-SENQSI...
Datasheet PDF File AH3764Q PDF File

AH3764Q
AH3764Q

Overview
PRELIMINARY - CONFIDENTIAL Description NOT RECOMMENDED FOR NEW DESIGN USE AH3724Q AH3764Q HIGH-VOLTAGE, HIGH-SENQSITIVITY AUTOMOTIVE HALL-EFFECT LATCH Pin Assignments 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.
(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 • R...


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