Datasheet > US1881E

US1881E

更新时间： 2024-09-26 05:53:47

品牌	Logo	应用领域
其他 - ETC		/
页数	文件大小	规格书
11页	425K
描述
CMOS MULTI-PURPOSE LATCH

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US1881E 数据手册

US1881

CMOS Multi-Purpose Latc

Features and Benefits

ß Chopper stabilized amplifier stage

ß Optimized for brushless DC motor applications

ß Miniature high reliability package

ß Operation down to 3.5V

ß CMOS for optimum stability, quality and cost

ß Low power consumption

Ordering Information

Part No.

US1881

Temperature Suffix

E (-40°C to 85°C)

K (-40°C to 125°C)

L (-40°C to 150°C)

Package Code

SO (SOT-23) or UA(TO-92)

1 Functional Diagram

Applications

ß Solid state switch

ß Brushless DC motor commutation

ß Speed Sensing

ß Linear position sensing

ß Angular position sensing

ß Current sensing

Pinout:

Note: Static electricity sensitive device; please observe

ESD precautions. Reverse voltage protection is not in-

cluded. For reverse polarity protection, a 100Ohm resistor

in series with V_DDis recommended.

UA Package:

SO Package:

Pin1: VDD - supply

Pin2: GND - Ground

Pin3: OUT - Output

Pin1: VDD - supply

Pin2: OUT – Output

Pin3: GND - Ground

2 Description

The US1881 is the industry’s first Hall integrated circuit in SOT-23 package. The US1881 is a bipolar Hall effect

sensor IC based on mixed signal CMOS technology. It incorporates advanced chopper stabilization techniques to

provide accurate and stable magnetic switch points. There are many applications for this HED in addition to those

listed above. The design, specifications and performance have been optimized for commutation applications in 5V

and 12V brushless DC motors.

In UA packaged device the output transistor will be latched on (Bop) in presence of a sufficiently strong South

pole magnetic field facing the marked side of the package. Similarly, the output will be latched off (Brp) in the

presence of a North field. The SOT-23 device behaviour is reverse to the UA device. The SOT-23 output transistor will

be latched on (B_OP) in the presence of a sufficiently strong North pole magnetic field on the marked side

3901001881

Rev. 014

Page 1 of 12

Jun/05

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与US1881E相关器件

型号	品牌	获取价格	描述	数据表
US1881ESE	MELEXIS	获取价格	Hall Latch - High Sensitivity
US1881ESE-AAA-000-RE	MELEXIS	获取价格	Hall Latch â High Sensitivity
US1881EUA	MELEXIS	获取价格	Hall Latch - High Sensitivity
US1881EUA-AAA-000-BU	MELEXIS	获取价格	Hall Latch â High Sensitivity
US1881K	ETC	获取价格	CMOS MULTI-PURPOSE LATCH
US1881KSE	MELEXIS	获取价格	Hall Latch - High Sensitivity
US1881KSE-AAA-000-RE	MELEXIS	获取价格	Hall Latch â High Sensitivity
US1881KUA	MELEXIS	获取价格	Hall Latch - High Sensitivity
US1881KUA-AAA-000-BU	MELEXIS	获取价格	Hall Latch â High Sensitivity
US1881L	ETC	获取价格	CMOS MULTI-PURPOSE LATCH