TOSHIBA Photocoupler Infrared LED + Photo IC TLP550 Integrated Circuit IC

Certification:new & original
Model Number:TLP550
Minimum Order Quantity:10pcs
Delivery Time:1 day
Payment Terms:T/T, Western Union, Paypal
Place of Origin:original factory
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Location: Shenzhen China
Address: Room 1204, DingCheng International Building, 518028 Futian District, SHENZHEN, CN
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TOSHIBA Photocoupler Infrared LED + Photo IC TLP550


Degital Logic Isolation Unit in mm

Line Receiver Feedback Control

Power Supply Control

Switching Power Supply

Transistor Invertor


TLP550 constructs a high emitting diode and a one chip photo diode− transistor.

TLP550 has no base connection, and is suitable for application at noisy environmental condition.

This unit is 8−lead DIP package.


  • Isolation voltage: 2500 Vrms (min.)
  • Switching speed: tpHL, tpLH = 0.5µs (typ.)(RL=1.9 kΩ)
  • TTL compatible
  • UL recognized: UL1577, file No. E67349 Pi

Pin Configuration (top view) Schematic


Maximum Ratings (Ta = 25°C)

CharacteristicSymbolRatingUnit
LEDForward current (Note 1)IF25mA
Pulse forward current (Note 2)IFP50mA
Peak transient forward current (Note 3)IFPT1A
Reverse voltageVR5V
Diode power dissipation (Note 4)PD45mW
DetectorOutput currentIO8mA
Peak output currentIOP16mA
Supply voltageVCC-0.5~15V
Output voltageVO-0.5~15V
Output power dissipation (Note 5)PO100mW
Operating temperature rangeTopr-55~100°C
Storage temperature rangeTstg-55~125°C
Lead solder temperature (10s)Tsol260°C
Isolation voltage (AC, 1min., R.H. = 40~60%) (Note 6)BVS2500Vrms

(Note 1) Derate 0.8mA above 70°C.

(Note 2) 50% duty cycle, 1ms pulse width. Derate 1.6mA / °C above 70°C.

(Note 3) Pulse width 1µs, 300pps.

(Note 4) Derate 0.9mW / °C above 70°C.

(Note 5) Derate 2mW / °C above 70°C.


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TOSHIBA Photocoupler Infrared LED + Photo IC TLP550 Integrated Circuit IC

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