Toshiba’s New Photorelays with Low Trigger LED Current Contribute to Low Power Consumption in Battery-Powered Equipment

Toshiba: a new photorelay TLP170AM with a low trigger LED current in a small 4-pin SO6 package (Photo: Business Wire)

TOKYO, Japan: 

Toshiba Electronic Devices & Storage Corporation (“Toshiba”) has launched two new photorelays “TLP170AM” and “TLP170GM” in a small 4-pin SO6 package, for security systems, building automation and other industrial equipment.

The new products feature a maximum trigger LED current of 1mA, which reduces input side power loss by increasing the sensitivity of the photodiode array. Using these photorelays for ON/OFF control in battery-powered security devices and various sensors contributes to lower power consumption and longer operation of devices.

TLP170AM has a rated OFF-state output terminal voltage of 60V and a constant ON-state current (I_ON) of 0.7A, with pulse operation of up to 2.1A. The TLP170GM is a 350V version with an I_ON of 110mA constant current and 330mA pulse operation.

The 4-pin SO6 package enables a minimum isolation voltage of 3750Vrms, allowing the devices to be used in equipment requiring high insulation performance.

Applications

• Security systems
  Passive sensor (PIR^[1]), etc.
• Industrial equipment
  Programmable logic controllers, I/O interfaces, various sensor controls, etc.
• Building automation systems
• Replacement of mechanical relays

Features

• Low trigger LED current: I_FT=1mA (max)
• Small package: 4-pin SO6
• High isolation voltage: BV_s=3750Vrms (min)

Main Specifications

(@Ta=25°C)
Part number	Package	Absolute maximum ratings				Trigger LED current IFT max (mA)	ON-state resistance RON (Ω)		Turn-on time tON max (ms)	Turn-off time tOFF max (ms)	Isolation voltage BVS min (Vrms)	Sample Check & Availability
		OFF- state output terminal voltage VOFF (V)	ON- state current ION (mA)	ON- state current (pulsed) IONP (A)	Operating temperature Topr (℃)
							typ.	max
TLP170AM	4-pin SO6	60	700	2.1	-40 to 85	1	0.15	0.3	6	1	3750	Buy Online
TLP170GM		350	110	0.33			28	50	2	1		Buy Online

Note:
[1] PIR (Passive Infrared Ray): Sensors that detect human proximity through changes in ambient infrared radiation

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