Low Voltage Driven Photorelays in Tiny Packages Enable High-Density Assembly in Test Equipment Applications Skip to main content

Low Voltage Driven Photorelays in Tiny Packages

Low Voltage Driven Photorelays in Tiny Packages
Low Voltage Driven Photorelays in Tiny Packages

Toshiba Electronics released a family of five new photorelays housed in the smallest package, the S-VSONR4 (2.0mm x 1.45mm). The new photorelays are ideal for applications such as automatic test equipment, memory testers, SoC/LSI testers and probe cards. 

 

The TLP34xxSRL series photorelays comprises two devices whereas TLP34xxSRH series comprises three devices having input voltage driven characteristics.TLP3406SRL and TLP3407SRL support a DC voltage range of 1.8V (typ.) to 3.3V (typ.), while TLP3406SRH, TLP3407SRH and TLP3412SRH support a DC voltage range of 3.3V (typ.) to 5V (typ.), characteristics that enhance compatibility with today’s low voltage FPGAs. 

 

For saving space, the photorelays comes with numerous features comprising tiny S-VSONR4 package with a mounting space of 2.9mm2 only and a built-in input resistor, eliminating the need for an external input resistor. The tiny size will enable increase in the number of photorelays on a board to achieve a higher density solution. Also, the engineers can now design smaller test boards, especially probe cards.

 

Irrespective of tiny size, the photorelays are capable of driving large currents: up to 1.5A for the TLP3406SRx with an offstage voltage VOFF of 30V and an ON-state resistance RON of 0.2Ω (max); and up to 1A for TLP3407SRx with a VOFF of 60V and RON of 0.3Ω. TLP3412SRH can drive up to 0.4A (VOFF = 60V / RON = 1.5Ω). The devices can efficiently operate in temperature range to 110 ℃(max).

 

Features

  • The smallest package of any voltage input control photorelay: mount space 2.9mm(typ.) (as of June 4, 2019)
  • Two input voltages adopted for the control signal: DC 1.8V (typ.) and DC 3.3V (typ.)
  • VOFF supports 30V/60V, ION supports 0.4A to 1.5A.

 

Main Specifications

(@Ta=25℃)

Part number

TLP3406SRH  

TLP3406SRL  

TLP3407SRH  

TLP3407SRL  

TLP3412SRH  

DC system voltage VCC typ. (V)

3.3/5

1.8

3.3/5

1.8

3.3/5

Package

S-VSONR4

Absolute

maximum

ratings

OFF-state output terminal voltage VOFF(V)

30

30

60

60

60

ON-state current ION (A)

1.5

1.5

1.0

1.0

0.4

ON-state current (pulsed) IONP(A)      

4.5

4.5

3.0

3.0

1.2

Electrical

characteristics

Operating voltage VFONmax (V)

3

1.8

3

1.6

3

ON-state resistance RON max (Ω)

0.2

0.2

0.3

0.3

1.5

Output capacitance COFF typ. (pF)

120

80

120

80

20

OFF-state current IOFFmax (nA)

@VOFF

1

(@20V)

1

(@20V)

1

(@50V)

1

(@50V)

1

(@60V)

Switching

characteristics  

Turn-on time tON max (ms)

2

2

2

2

0.5

Turn-off time tOFF max (ms)

1

1

1

1

0.5

Isolation

characteristics

Isolation voltage BVSmin (Vrms)

500

500

500

500

500

 

Applications 

  • Automatic test equipment (ATE)
  • Memory testers, SoC and LSI testers
  • Probe cards.

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