Toshiba Launches Photovoltaic Couplers in Small-Size SO6 Packages

TOKYO — (BUSINESS WIRE) — April 25, 2014Toshiba Corporation’s (TOKYO:6502) Semiconductor & Storage Products Company today announced the launch of small-size SO6 package photovoltaic couplers. Mass production of the new products, “TLP3905” and “TLP3906”, starts today.

Toshiba: SO6 Package Photovoltaic Coupler (Photo: Business Wire)

Toshiba: SO6 Package Photovoltaic Coupler (Photo: Business Wire)

The structure of a photovoltaic coupler is a photorelay without a MOSFET chip. Users can create an isolated relay by combining the photovoltaic coupler with the external MOSFET of their choice. This makes it possible to realize larger voltage and current exceeding the capabilities of existing photorelay products.

The new products, “TLP3905” and “TLP3906”, while maintaining the fundamental performance of Toshiba’s current products, “TLP190B” and “TLP191B”, expand on application areas by upgrading the operating temperature up to 125 degrees Celsius (max) and the isolation voltage up to 3750Vrms (min). Also, “TLP3906” integrates a control circuit for releasing the MOSFET gate charge, realizing a much faster turn-off speed; approximately triple that of “TLP3905”. Additionally, “TLP3906” guarantees an LED trigger current to ensure VOC (min)*, making it easier to lower power dissipation of LED current. The new products are suitable for line switches in tester applications or high current control in PLC applications.

*VOC: Open circuit voltage

   

Main Specifications of New Products

         
 Product Current Products New Products
TLP190B   TLP191B TLP3905   TLP3906
Package MFSOP6 SO6(4pin)
Function

Without
discharge
resistance

With
discharge
resistance

Without
discharge
resistance

With
discharge
circuit

Term       Unit        

Open Circuit Voltage
(min)

VOC V 7 7 7 7
Short Circuit Current(min) I SC µA 12 12 12 12

Trigger LED Current
(max)

I FT mA - - - 3

Isolation Voltage
(min)

BVs Vrms 2500 3750
Switching  

Turn On
Time
(typ)

t ON ms 0.2 0.2 0.3 0.2

Turn Off
Time
(typ)

  t OFF   ms 1 3 1 0.3
  Condition

I F =20mA,
RL=510kΩ,
CL=1000pF

I F =20mA
CL=1000pF

I F =10mA,
RL=510kΩ,
CL=1000pF

I F =10mA,
CL=1000pF

Safety Standard   UL, cUL  

UL, cUL,
VDE(Under application)

 

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