Datasheet > US4881

US4881

更新时间： 2024-09-07 22:17:07

品牌	Logo	应用领域
MICRO-ELECTRONICS		/
页数	文件大小	规格书
6页	120K
描述
CMOS Low Voltage High Sensitivity Latch

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US4881 数据手册

US4881

CMOS Low Voltage High Sensitivity Latch

Preliminary Datasheet

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

Low I_DDcurrent

Applications

Solid state switch

Brushless DC motor commutation

Speed sensing

Ordering Information

Part No.

US4881

Temperature Suffix

Package

SO or UA

Temperature Range

-40 to 85^oC Extended

-40 to 150^oC Automotive

Contact factory or sales representative for legacy temperature code options

Functional Diagram

Description

The US4881 is a bipolar Hall effect sensor IC fab-

ricated from mixed signal CMOS technology. It

incorporates advanced chopper stabilization tech-

niques 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 brush-

less DC motors and automotive speed sensing.

V_DD

Output

Voltage

Regulator

The output transistor will be latched on (B_OP) in

the presence of a sufficiently strong South pole

magnetic field facing the marked side of the pack-

age. 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

package. The SOT-23 output transistor will be

latched on (B_OP) in the presence of a sufficiently

strong North pole magnetic field subjected to the

marked face.

UA Package

SO Package

Pin 1 - V_D

Pin 2 - GND

Pin 2 - Output

Pin 3 - GND

Pin 3 - Output

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.

US4881 CMOS Low Voltage High Sensitivity Latch

3901004881 Rev 1.5

24/July/01

Page 1

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US4881_12	MELEXIS	获取价格	Bipolar Hall Switch Low Voltage and Very High Sensitivity
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US4881EUA	MELEXIS	获取价格	Bipolar Hall Switch Low Voltage & Very High Sensitivity
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US4881KSEAAA-000RE	MELEXIS	获取价格	Bipolar Hall Switch Low Voltage and Very High Sensitivity
US4881KSO	MELEXIS	获取价格	Bipolar Hall Switch Low Voltage & Very High Sensitivity
US4881KUA	MELEXIS	获取价格	Bipolar Hall Switch Low Voltage & Very High Sensitivity
US4881KUAAAA-000BU	MELEXIS	获取价格	Bipolar Hall Switch Low Voltage and Very High Sensitivity
US4881LSEAAA-000RE	MELEXIS	获取价格	Bipolar Hall Switch Low Voltage and Very High Sensitivity