Zone 0 Mtl5546 Isolating Driver Sic Isolated Gate Driver
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MTL5546 ISOLATING DRIVERThe MTLx546 accepts a 4/20mA floating signal from a safe-area controller to drive a current/pressure converter (or any other load up to 800Ω) in a hazardous area. For HART valve positioners, the module also permits bi-directional transmission of digital communication signals. Process controllers with a readback facility can detect open or short circuits in the field wiring: if these occur, the current taken into the terminals drops to a preset level. The MTL4546C and the MTLx546Y are very similar to the MTLx546 except that they provide open circuit detection only (i.e. no short-circuit detection).
SPECIFICATION Number of channels One Location of I/P converter Zone 0, IIC, T4–6 hazardous area if suitably certified Div. 1, Group A, hazardous location Working range 4 to 20mA Digital signal bandwidth 500Hz to 10kHz Maximum load resistance 800Ω (16V at 20mA) Minimum load resistance 90Ω (short-circuit detection at < 50Ω) Output resistance > 1MΩ Under/over range capability Under range = 1mA Over range = 24mA (load ≤ 520Ω) Input and output circuit ripple < 40µA peak-to-peak Transfer accuracy at 20°C Better than 20µA Temperature drift < 1.0µA/°C Response time Settles within 200µA of final value within 100ms Communications supported HART LED indicator Green: power indication Maximum current consumption (with 20mA signals into 250Ω load) 35mA at 24V dc Power dissipation within unit (with 20mA signals into 250Ω load) 0.8W at 24V Safety description Uo =28V Io =93mA Po =651mW Um = 253V rms or dc
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Product Tags: MTL5546 Zone 0 sic isolated gate driver sic isolated gate driver 20mA |
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