Datasheet > AH3712Q

AH3712Q

更新时间： 2023-12-06 20:08:56

品牌	Logo	应用领域
美台 - DIODES		/
页数	文件大小	规格书
19页	1107K
描述
27V Open-Drain Hall Effect Latch

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AH3712Q 数据手册

AH3712Q

AUTOMOTIVE HIGH-VOLTAGE, HIGH-SENSITIVITY HALL-EFFECT LATCH

Description

Pin Assignments

The DIODES AH3712Q is an AEC-Q100 qualified, high-voltage, high-

sensitivity, Hall-effect latch IC designed for brushless DC-motor

commutation, speed measurement, angular/linear encoders, and

position sensors in automotive applications. To support a wide range

of demanding applications, the design is optimized to operate over

the 3.0V to 27V supply range. With chopper-stabilized architecture

and an internal bandgap regulator providing temperature-

compensated supply for internal circuits, the AH3712Q 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, and the output has an overcurrent limit and a

Zener clamp.

(Top View)

3 OUTPUT

1 V_DD

GND 2

SC59 and SOT23

(Top View)

3. OUTPUT

2. GND

V_DD

The single, open-drain output can be switched on with the South pole

with sufficient strength, and switched off with the North pole with

sufficient strength. When the magnetic flux density (B) perpendicular

to the package is larger than the operate point (B_OP) the output is

switched on (pulled low). The output is held latched until magnetic flux

density reverses and becomes lower than the release point (B_RP).

SIP-3

( Top View )

GND

V_DD

Pad 1

The magnetic operating and release polarity is opposite for the

SOT23 and SC59 packages. For operation, the SOT23, SIP-3 (Bulk),

and U-DFN2020-6/SWP packages require the south pole to the part-

marking side, and the SC59 requires the south pole to the non-part-

marking side.

GND

OUTPUT

Pad 2

U-DFN2020-6/SWP

Features

Applications



Bipolar Latch (South Pole: On, North Pole: Off)

3.0V to 27V Operating Voltage Range



Brushless DC motor commutation

Revolution per minute (RPM) measurement

Flow meters

High Sensitivity: B_OPand B_RPof ±25G Typical

Angular and linear encoder and position sensors



Resistant to Physical Stress

Contactless commutation, speed measurement, and angular

position sensing/indexing in automotive applications

Single, Open-Drain Output AH3712Q or Internal Pull-Up

AH3712AQ (*Future New Product)

Output with Overcurrent Limit



Chopper-Stabilized Design Provides

Superior Temperature Stability

Minimal Switch-Point Drift

Enhanced Immunity to Stress



Good RF Noise Immunity

Reverse-Blocking Diode and Zener Clamp on Supply

-40C to +150°C Operating Temperature

ESD HBM: 8kV, CDM: 1kV

Industry-Standard SC59, SOT23, SIP-3, and

U-DFN2020-6/SWP Packages



Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)

Halogen and Antimony Free. “Green” Device (Note 3)

The AH3712Q is suitable for automotive applications

requiring specific change control; this part is AEC-Q100

qualified, PPAP capable, and manufactured in IATF16949

certified facilities.

https://www.diodes.com/quality/product-definitions/

Notes:

1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3) compliant.

2. See https://www.diodes.com/quality/lead-free/ 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.

4. For packaging details, go to our website at https://www.diodes.com/design/support/packaging/diodes-packaging/.

1 of 19

www.diodes.com

March 2023

AH3712Q

Document number: DS45415 Rev. 2 - 2

12 3 4 5 6 7...19

中文翻译

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与AH3712Q相关器件

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AH3717Q	DIODES	获取价格	27V Open-Drain Hall Effect Latch
AH371-92	ATMEL	获取价格	Gunn Diode, 22GHz Min, 24GHz Max, Gallium Arsenide, Continuous Wave, W3, 1 PIN
AH371-93	ATMEL	获取价格	Gunn Diode, 22GHz Min, 24GHz Max, Gallium Arsenide, Continuous Wave, W4, 1 PIN
AH371-95	ATMEL	获取价格	Gunn Diode, 22GHz Min, 24GHz Max, Gallium Arsenide, Continuous Wave
AH372-00	ATMEL	获取价格	Gunn Diode, 25GHz Min, 26GHz Max, Gallium Arsenide, Continuous Wave, W2, 1 PIN
AH372-92	ATMEL	获取价格	Gunn Diode, 25GHz Min, 26GHz Max, Gallium Arsenide, Continuous Wave, W3, 1 PIN
AH372-93	ATMEL	获取价格	Gunn Diode, 25GHz Min, 26GHz Max, Gallium Arsenide, Continuous Wave, W4, 1 PIN
AH372-95	ATMEL	获取价格	Gunn Diode, 25GHz Min, 26GHz Max, Gallium Arsenide, Continuous Wave, W5, 1 PIN
AH372-P-A	DIODES	获取价格	Hall Effect Sensor, -6mT Min, 6mT Max, Rectangular, Through Hole Mount, SIP-3
AH372-P-B	DIODES	获取价格	Hall Effect Sensor, -6mT Min, 6mT Max, Rectangular, Through Hole Mount, SIP-3

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