FHS40-P Datasheet, PDF (1/18 Pages) LEM – Current transducer

Current transducer FHS 40-P/SP600
Minisens
I_PM = 0 - 100 A
Introduction
The Minisens transducer is an ultra flat SMD open loop integrated circuit current transducer based on the Hall effect principle.
It is suitable for the electronic measurement of currents: DC, AC, pulsed, mixed. It has no insertion loss and provides galvanic
isolation between the primary circuit (high power) and the secondary circuit (sensor). It measures the magnetic field generated
by the current flowing in a conductor such as a PCB track. The output voltage is proportional to that magnetic field.
The IC is calibrated to minimize offset and temperature drifts. An integrated magnetic circuit gives an optimum transducer
sensitivity. High isolation between the primary circuit and transducer electronics can be obtained with a double sided PCB.
This datasheet is for a device programmed for maximum sensitivity: other options will be available. For example, the sensitivity
range will be adjustable, and a choice of fixed or ratiometric (proportional to power supply voltage) sensitivity and reference
voltage will be offered.
Features
●● Programmable Hall effect transducer for current
measurement applications up to ± 100 A
●● 5 V power supply
●● Standard S0IC 8 pin package
●● Magnetic field measurement range ± 3.3 mT
●● Sensitivity range up over to 200 mV/A
●● Isolated current measurement.
Advantages
●● Low cost
●● Small size
●● Excellent linearity
●● No power loss in primary circuit
●● Internal or external reference voltage may be used on
the same pin
●● Standby mode for reduced power consumption
●● Additional output for fast detection with response
time 3 µs.
Applications
●● Battery supplied applications
●● Motor control
●● Power meter
●● Uninterruptible Power Supplies (UPS)
●● Switched Mode Power Supplies (SMPS)
●● Overcurrent fault protection
●● Threshold detection
●● Garage door opener
●● Window shutters
●● Motors and fans
●● Air conditioning
●● White goods.
Application domain
●● Industrial.
Standard
●● EN 50178.
100727/10
LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice.
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