Electronics Weekly
Called TLP3640A, it can switch 60Vdc or 60Vac peak, with a typical on-resistance of 0.14Ω and maximum off-state leakage of 1µA.
100ms pulses of up to 3A can be carried.
Operation is over -40 to +110°C, and de-rating starts at 25°C, dropping linearly from 1A to 150mA at maximum temperature. Power-wise, this is 300mW dropping to 45mW.
Inside, the component chips are stacked vertically, with a 200μm isolation thickness.
“By improving the characteristics of the internal LED and photodiode arrays, TLP3640A offers maximum switching times of 0.5ms ‘on’ and 0.2ms ‘off’,” said the company. “These speeds make the product suitable for analog interface sections in PLCs [programmable logic controllers] and gain-selectable amplifiers used in measuring instruments.”
These times are measured at 25°C with 5mA of drive and 20V 200Ω on the output. Typical timing figures are 130μs on and 40μs off.
At the same temperature, it will always carry 1A with 3mA through the input, and will always block to 10μA with 100μA through the input.
Creepage and clearance are 5mm, and minimum isolation voltage is 3,750Vrms.
The parts are UL 1577 and cUL recognised, and a special version (option V4) is available with EN IEC 60747-5-5 VDE approval.
Applications are foreseen in factory automation, building automation, security systems and measuring instruments.
Find the TLP3640A opto-relay on this web page
