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AH3766Q Dataheets PDF



Part Number AH3766Q
Manufacturers Diodes Incorporated
Logo Diodes Incorporated
Description AUTOMOTIVE HALL- EFFECT LATCH
Datasheet AH3766Q DatasheetAH3766Q Datasheet (PDF)

Description The AH3766Q is an AEC-Q100 qualified high-voltage, mediumsensitivity Hall-Effect latch IC designed for brushless DC-motor commutation, speed measurement, angular or linear encoders and position sensors in automotive applications. To support 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, .

  AH3766Q   AH3766Q


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Description The AH3766Q is an AEC-Q100 qualified high-voltage, mediumsensitivity Hall-Effect latch IC designed for brushless DC-motor commutation, speed measurement, angular or linear encoders and position sensors in automotive applications. To support 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 AH3766Q 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. AH3766Q HIGH-VOLTAGE, MEDIUM-SENQSITIVITY AUTOMOTIVE HALL- EFFECT LATCH Pin Assignments (Top View) GND 2 3 OUTPUT 1 VDD 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) SIP-3 3. OUTPUT 2. GND 1. VDD Features • Bipolar Latch Operation (South Pole: On, North Pole: off) • High Sensitivity: Bop and Brp of +110G and -110G 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 • -40°C to +150°C Operating Temperature • ESD: HBM >8kV, CDM: >2kV • AEC-Q100 Grade 0 Qualified • Industry Standard 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. AH3766Q Document number: DS38075 Rev. 2 - 2 1 of 13 www.diodes.com July 2015 © Diodes Incorporated Typical Applications Circuit 3.0V to 28V VDD AH3766Q Q RL OUTPUT CIN AH3766Q GND Note: 4. CIN is for power stabilization and to strengthen the noise immunity, the recommended capacitance is 10nF ~ 100nF. RL is the pull-up resistor. Pin Descriptions Package: SOT23 and SIP-3 Pin Number 1 2 3 Pin Name VDD GND OUTPUT Power Supply Input Ground Output Pin Function Functional Block Diagram VDD Power switch To All Subcircuits Amp Amp Control OUTPUT Low-Pass Filter Sample and Hold Dynamic Offset Cancellation Current Limit GND AH3766Q Document number: DS38075 Rev. 2 - 2 2 of 13 www.diodes.com July 2015 © Diodes Incorporated AH3766Q Q Absolute Maximum Ratings (Notes 5 & 6) (@TA = +25°C, unless otherwise specified.) Symbol VDD VDDR VOUT_MAX IOUT IOUT_R B PD Ts TJ ESD HBM ESD MM ESD CDM Supply Voltage (Note 6) Reverse Supply Voltage (Note 6) Output Off Voltage (Note 6) Continuous Output Current Reverse Output Current Magnetic Flux Density Characteristic Package Power Dissipation Storage Temperature Range Maximum Junction Temperature Electros Static Discharge Withstand - Human Body Model (HMB) Electros Static Discharge Withstand - Machine Model (MM) Electros Static Discharge Withstand - Charged Device Model (CDM) SIP-3 SOT23 Value 32 -32 32 60 -50 Unlimited 550 230 -65 to +165 +150 8 800 2 Unit V V V mA mA mW °C °C kV V kV Notes: 5. Stresses greater than the 'Absolute Maximum Ratings' specified above may cause permanent damage to the device. These are stress ratings only; functional operation of the device at these or any other conditions exceeding those indicated in this specification is not implied. Device reliability may be affected by exposure to absolute maximum rating conditions for extended periods of time. 6. The absolute maximum VDD of 32V is a transient stress rating and is not meant as a functional operating condition. It is not recommended to operate the device at the absolute maximum rated conditions for any period of time. Recommended Operating Conditions (@TA = -40°C to +150°C, unless otherwise specified.) Symbol VDD TA Parameter Supply Voltage Operating Temperature Range Operating Operating Con.


B788 AH3766Q AH3766Q-P-B


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