Photo relays have low trigger current to conserve battery power

Two photo relays introduced by Toshiba Electronics Europe have a low trigger current to contribute to low power consumption in battery powered equipment, says the company.

The TLP170AM and TLP170GM are housed in a small four-pin SO6 package and are suitable for use in security systems, building automation and other industrial equipment.

The relays have a low trigger LED current of 1mA, which reduces input side power loss by increasing the sensitivity of the photo diode array. Using these photo relays for on/off control in battery-powered security devices and varied sensors, contributes to lower power consumption and longer operating life.

TLP170AM has a rated off-state output terminal voltage (Voff) of 60V. It features a typical on-state resistance (Ron) of 0.15Ohm and constant on-state current (Ion) of 0.7A, with pulse operation of up to 2.1A.

The TLP170GM is a 350V version with a typical Ron of 28Ohm, and Ion of 110mA constant current and 330mA pulse operation. Both devices have a rated operating temperature between -40 and +85 degrees C, to allow for a temperature margin in system level thermal design.

The SO6 package enables a minimum isolation voltage of 3750V rms, allowing the devices to be used in equipment requiring high insulation performance.

Toshiba Electronics Europe (TEE) is the European electronic components business of Toshiba Electronic Devices and Storage Corporation (Toshiba). TEE offers European consumers and businesses a wide variety of hard disk drive (HDD) products and semiconductors for automotive, industrial, IoT, motion control, telecoms, networking, consumer and white goods applications. The company’s broad portfolio encompasses integrated wireless ICs, power semiconductors, microcontrollers, optical semiconductors, ASSPs and discrete devices ranging from diodes to logic ICs.

TEE has headquarters in Düsseldorf, Germany, with branch offices in France, Italy, Spain, Sweden and the United Kingdom providing design, manufacturing, marketing and sales.

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