LDC0851 (ACTIVE)

Differentially Compensated and Highly Accurate Inductive Switch

Differentially Compensated and Highly Accurate Inductive Switch - LDC0851
Datasheet
 

Description

The LDC0851 is a close range inductive switch ideal for contactless and robust applications such as presence detection, event counting, and simple buttons.

The switch is triggered when a conductive object comes within close proximity of the sensing coil. Hysteresis is included to ensure a reliable switching threshold immune to mechanical vibration. The differential implementation prevents false triggering over environmental factors such as temperature variation or humidity effects.

Inductive sensing technology provides reliable and accurate sensing even in the presence of dirt, oil, or moisture making it ideal for use in harsh or dirty environments. The solid state switching eliminates the failures due to reed, mechanical, or contact switching. Unlike competitive products, the LDC0851 does not require magnets, nor is it affected by DC magnetic fields.

Features

  • Threshold tolerance: <1 % of coil diameter
  • Temperature stable switching operation
  • Average Supply Current: < 20 µA @ 10 sps
  • Shutdown Supply Current: 140 nA
  • Push-pull output
  • Resistor Programmable Threshold
  • Insensitive to DC Magnetic Fields
  • Contactless Switching Operation
  • Sample Rate up to 4 ksps
  • Supply Voltage: 1.8 V – 3.3 V
  • Operating Temperature Range: –40 to 125 °C

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Parametrics Compare all products in Inductive Switches

 
# Input Channels
Analog Supply (V) (Min)
Analog Supply (V) (Max)
Interface
Sensor Frequency (Hz)
Operating Temperature Range (C)
Pin/Package
LDC0851 LMP91300
1    1   
1.8    6.5   
3.3    40   
Push/Pull    SWIF   
300KHz to 19MHz    5k to 5M   
-40 to 125    -40 to 125   
8WSON    20DSBGA
24WQFN   

WEBENCH® Designer LDC0851

 Coil Designer  On/ Off Sensing
Use this tool to get started with On/Off sensing designer.
Onn/ Off Sensing
 
Switching Distance  mm
Closest Target Distance  mm
Max Coil Dia  mm
Supply Voltage  1.8V    3.3V