Datasheet > US3881LSO

US3881LSO

更新时间： 2024-01-05 02:28:42

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描述
CMOS Low Voltage Hall Effect Latch

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US3881LSO 技术参数

生命周期：	Contact Manufacturer	Reach Compliance Code：	unknown
风险等级：	5.84	Base Number Matches：	1

US3881LSO 数据手册

US3881

CMOS Low Voltage Hall Effect Latch

Features and Benefits

Chopper stabilized amplifier stage

Optimized for BDC motor applications

New miniature package / thin, high reliability package

Operation down to 2.2V

CMOS for optimum stability, quality, and cost

Applications

Solid state switch

Brushless DC motor commutation

Speed sensing

Linear position sensing

Angular position sensing

Current sensing

Ordering Information

Part No.

US3881

Temperature Suffix

Package

SO or UA

Temperature Range

-40^oC to 85^oC Commercial

-40^oC to 150^oC Automotive

* Contact factory or Sale Representative for legacy temperature options

Functional Diagram

Description

The US3881 is a bipolar Hall effect sensor IC fabri-

cated from mixed signal CMOS technology. It in-

corporates advanced chopper stabilization tech-

niques to provide accurate and stable magnetic

switch points. There are many applications for this

sensor in addition to those listed above. The de-

sign, specifications, and performance have been

optimized for commutation applications in 5V and

12V brushless DC motors.

V_DD

Output

Voltage

Regulator

The output transistor will be latched on (B_OP) in the

presence of a sufficiently strong South pole mag-

netic field facing the marked side of the package.

Similarly, the output will be latched off (B_RP) in the

presence of a North field.

Chopper

GND

The SOT-23 device is reversed from the UA pack-

age. The SOT-23 output transistor will be latched

on in the presence of a sufficiently strong North

pole magnetic field subjected to the marked face.

UA Package

Pin 1 - V_DD

SO Package

Pin 1 - V_DD

Pin 2 - GND

Pin 3 - Output

Pin 2 - Output

Pin 3 - GND

Note: Static sensitive device; please observe ESD precautions. Re-

verse V_DDprotection is not included. For reverse voltage protec-

tion, a 100

W resistor in series with V_DDis recommended.

US3881 CMOS Low Voltage Hall Effect Latch

3901003881 Rev 4.2

7/23/01

Page 1

12 3 4 5 6

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与US3881LSO相关器件

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US3881SUA	FCI-CONNECTOR	获取价格	Sensor/Transducer
US3881UA	FCI-CONNECTOR	获取价格	Sensor/Transducer
US3A	MIC	获取价格	SURFACE MOUNT HIGH EFFICIENCY RECTIFIER
US3A	SSE	获取价格	SURFACE MOUNT ULTRA FAST SWITCHING RECTIFIER
US3A	DIODES	获取价格	3.0A SURFACE MOUNT SUPER-FAST RECTIFIER
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