Datasheet > AH3774

AH3774

更新时间： 2023-12-06 20:08:34

品牌	Logo	应用领域
美台 - DIODES		/
页数	文件大小	规格书
14页	496K
描述
28V Open-drain Hall Effect Latch

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中文翻译

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AH3774 数据手册

AH3774

HIGH-VOLTAGE HIGH-SENSITIVITY HALL EFFECT LATCH

Description

Pin Assignments

The AH3774 is a high-voltage, high-sensitivity Hall Effect Latch IC

designed for commutation of brushless DC motor, flow meters, linear

encoders and position sensors in industrial and consumer home

appliance and personal care 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 AH3774 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)

3 OUTPUT

GND 2

1 V_DD

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

GND

V_DD

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

Features

Applications

•

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

3.0V to 28V Operating Voltage Range

•

Brushless DC Motor Commutation

Revolution Per Minute (RPM) Measurement

Flow Meters

High Sensitivity: Bop and Brp of +40G and -40G Typical

Single Open Drain Output with Over Current Limit

Chopper Stabilized Design Provides

Angular and Linear Encoder and Position Sensors

Contact-less Commutation, Speed Measurement and Angular

Position Sensing/Indexing in Consumer Home Appliances, Office

Equipments and Industrial Applications

•



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 +125°C Operating Temperature

ESD (HBM): 6kV

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 14

www.diodes.com

September 2015

AH3774

Document number: DS37899 Rev. 1 - 2

12 3 4 5 6 7...14

中文翻译

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与AH3774相关器件

型号	品牌	获取价格	描述	数据表
AH3774-P-B	DIODES	获取价格	Hall Effect Sensor, -6mT Min, 6mT Max, 30-55mA, Rectangular, Through Hole Mount, GREEN, SI
AH3774-SA-7	DIODES	获取价格	Hall Effect Sensor, -6mT Min, 6mT Max, 30-55mA, Rectangular, Surface Mount, GREEN, SOT-23,
AH3774-W-7	DIODES	获取价格	Hall Effect Sensor, -6mT Min, 6mT Max, 30-55mA, Rectangular, Surface Mount, GREEN, SC-59,
AH3775	DIODES	获取价格	HIGH-VOLTAGE MEDIUM-SENSITIVITY HALL EFFECT LATCH
AH3775-P-7	DIODES	获取价格	HIGH-VOLTAGE MEDIUM-SENSITIVITY HALL EFFECT LATCH
AH3775-P-A	DIODES	获取价格	HIGH-VOLTAGE MEDIUM-SENSITIVITY HALL EFFECT LATCH
AH3775-P-B	DIODES	获取价格	Hall Effect Sensor, -9mT Min, 9mT Max, 30-55mA, Rectangular, Through Hole Mount, GREEN, SI
AH3775-SA-7	DIODES	获取价格	Hall Effect Sensor, -9mT Min, 9mT Max, 30-55mA, Rectangular, Surface Mount, GREEN, SOT-23,
AH3775-SA-A	DIODES	获取价格	HIGH-VOLTAGE MEDIUM-SENSITIVITY HALL EFFECT LATCH
AH3775-SA-B	DIODES	获取价格	HIGH-VOLTAGE MEDIUM-SENSITIVITY HALL EFFECT LATCH

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