MTL4523L SOLENOID/ ALARM DRIVER loop-powered with line fault detection, IIC

MTL4523L SOLENOID/ ALARM DRIVER loop-powered with line fault detection, IIC

With the MTL4523L interface, an on/off device in a hazardous area can be controlled by a voltage signal in the safe area. It is suitable for driving
loads such as solenoids. Line fault detection (LFD), which operates when the output is energised, is signalled by a safe-area solid-state
switch which energises if a field line is open or short-circuited.

SPECIFICATION
Number of channels
One
Location of load
Zone 0, IIC, T4–6 hazardous area if suitably certified
Div. 1, Group A, hazardous location
Input voltage
20 to 35V dc
Hazardous-area output
Minimum output voltage: 13.6V at 48mA
Maximum output voltage: 24V from 180Ω
Current limit: 48mA minimum
Output ripple
< 0.5% of maximum output, peak to peak Response time Output within 10% of final value within 100ms Line fault detection (LFD) Open or short circuit in field cabling energises solid state line fault signal LFD transistor is switched off, provided that the field circuit impedance is > 55Ω and < 4kΩ.
Line fault signal characteristics
Maximum off-state voltage: 35V
Maximum off-state leakage current: 10µA
Maximum on-state voltage drop: 2V
Maximum on-state current: 50mA
LED indicators
Yellow: output status, on when output activeMaximum current consumption
100mA at 24V dc
Power dissipation within unit
1.2W with typical solenoid valve, output on
Safety description
Uo=25V Io=147mA Po= 0.92W Um = 253V rms or dc

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