55250 Series 规格书

littelfuse.com© 2015 Littelfuse Revised: 10/27/15
Specifications are subject to change without notice.
55250 Angular Displacement Sensor
Description
The Littelfuse 55250 Series of rotary absolute position sensors provide angular
measurement between 0 and 105 degrees with the option of a full 360 degrees
of movement. The internal design of the sensor uses non-contact magnetic Hall
Effect technology as opposed to more common wiper-based resistive products.
This unit is immune to the performance limitations of the wiper-based products
that are associated with mechanical wear or contamination.
The 55250’s package design commonly finds applications within all types of
vehicle and industrial segments. It has been designed to operate in the harsh
environments of the inudstrial and commercial vehicle and the sensor has an
operating temperature range between -40°C and 125°C. This unit incorporates
automotive grade EMI/EMC and reverse polarity protection and mates with a
Delphi type sealed connector.
Hall Effect Sensors
Features
• 105° Angular sensing range
• Absolute rotary position sensor
• Analog output
• Non-contact measuring
• EMC protection
• Integral connector
Benefits
• Long life - no wear components
• High speed
• Unaffected by harsh environments
• Small robust package
Applications
• Pedal position
• Automotive pedal position
• Absolute rotary encoder
• Shaft position
• Lever position
• Float level sensor
• Non-contacting potentiometer
Dimensions
Dimensions in mm
Rotary Hall Sensor > 55250
Sensor Interface Geometry
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littelfuse.com© 2015 Littelfuse Revised: 10/27/15
Specifications are subject to change without notice.
55250 Angular Displacement Sensor
Hall Effect Sensors
Customization Options
Customized versions available. Contact Littelfuse for details.
• Angular sensing range
• Output type: Analog, PWM or SPI
Output Signal
Specifications
Hall Effect Device Rotational Analog Output
Operating Voltage Recommended Vdc 4.5 to 5.5
Over Voltage Absolute Max 1Vdc 20
Reverse Voltage Absolute Max 1Vdc -10
Supply Current mA - max. 16
Output Current mA - max. -8 to +8
Programmed Output Voltage Range Vdc 0.5 to 4.5
Programmed Sensing Range Degrees 105
Resolution Degrees 0.11
Accuracy Degrees ±4
Response Time ms-Max 4
Start-up Time ms-Max 15
Temperature Operating °C -40 to +125
Mating Connector Delphi 12162181
Pin Out
Pin A
Pin B
Pin C
Ground
V(in)
Signal
Rotary Hall Sensor > 55250
Note:
1. This is a stress rating only. Functional operation is not implied for additional load/life information.
5.0V
4.5V
0.5V
0.0V
0º 52.5º105º
Packaging
Packaging Option Packaging Specification Quantity Quantity & Packaging Code Taping Width
Bulk Bulk 500 N/A N/A
Part Numbering System
55250 - 00 - 00 - 0
Series
Termination
Cable Length
Hall Option