Toshiba Launches Voltage Driven Photorelay in Industry’s Smallest Package with Reduced Input Power Dissipation
September 25, 2019
Toshiba Electronic Devices & Storage Corporation
- Helps to reduce equipment size and power consumption in test equipment applications
TOKYO—Toshiba Electronic Devices & Storage Corporation (“Toshiba”) has started to ship “TLP3407SR,” a new voltage driven photorelay that delivers lower power dissipation and the industry’s smallest[1] mounting area.
TLP3407SR has a maximum limited LED current of 1mA at voltage input, a reduction to about one third of that of the earlier “TLP3407SRH.” With this, the new photorelay cuts maximum input power dissipation to 3.3mW[2], supporting lower power consumption by equipment such as probe cards, automatic semiconductor test equipment (ATE), semiconductor testers, and the boards of associated application.
When the input is a high voltage of 5V or more, the new photorelay can be driven by adding an external resistor in series, which allows designs with a maximum trigger LED reference current of 0.2mA. This approach realizes lower input current design in tester circuits.
The TLP3407SR’s small S-VSON4T[3] package has a mounting area of 2.9mm2, about 27% smaller than the current VSONR4[4] package and the industry’s smallest[1]. It supports size reductions in equipment like probe cards, or mounting of more photorelays.
Applications
- Probe cards
- Automatic semiconductor test equipment (ATE)
- Logic and memory testers, etc.
- Measuring instruments (Oscilloscope, data logger, etc.)
Features
- Low input power dissipation: 3.3mW (max) @3.3V, ILIM(LED)=1mA (max)
- Industry’s smallest[1] mounting area : 2.9mm2 (typ.)
- Two input voltages adopted for the control signal: DC3.3V (typ.) and DC5V (typ.)
Main Specifications
(@Ta=25℃)
| Part number | TLP3407SR |
[5] |
[5] |
[5] |
[5] |
[5] |
|
|---|---|---|---|---|---|---|---|
| Package | S-VSON4T | ||||||
|
Absolute maximum ratings |
OFF-state output terminal voltage VOFF (V) | 60 | 30 | 30 | 60 | 60 | 60 |
| ON-state current ION (A) | 1 | 1.5 | 1.5 | 1 | 1 | 0.4 | |
|
ON-state current (pulsed) IONP (A) |
3 | 4.5 | 4.5 | 3 | 3 | 1.2 | |
| Recommended operating conditions |
Applied input forward voltage VIN (typ.) (V) |
3.3 | 3.3 | 1.8 | 3.3 | 1.8 | 3.3 |
|
Electrical characteristics |
Limited LED current ILIM(LED) max (mA) @VIN |
1 (@3.3V) |
- | - | - | - | - |
|
Trigger LED current IFT max (mA) |
0.2 | - | - | - | - | - | |
|
Operating voltage VFON max (V) |
3 | 3 | 1.6 | 3 | 1.6 | 3 | |
|
ON-state resistance RON max (Ω) |
0.3 | 0.2 | 0.2 | 0.3 | 0.3 | 1.5 | |
|
Output capacitance COFF typ. (pF) |
80 | 120 | 120 | 80 | 80 | max 20 | |
|
OFF-state current IOFF max (nA) @VOFF |
1 (@50V) |
1 (@20V) |
1 (@20V) |
1 (@50V) |
1 (@50V) |
1 (@50V) |
|
|
Switching characteristics |
Turn-on time tON max (ms) | 20 | 2 | 2 | 2 | 1 | 0.5 |
| Turn-off time tOFF max (ms) | 1 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | |
|
Isolation characteristic |
Isolation voltage BVS min (Vrms) |
500 | 500 | 500 | 500 | 500 | 500 |