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TOSHIBA Photocoupler IRED & Photo IC
TLP551
Controllers Interfaces for Calculators and Control Devices Noise Attenuation in Measurement and System Devices Signal Transmission between circuits of different potential
TLP551
Unit: mm
The TOSHIBA TLP551 consists of a high-output infrared emitting diode and a high speed detector of one chip photo diode-transistor. This unit is 8lead DIP.
TLP551 has an internal base connection. This base pin should be used for analog application or enable operation.
• Isolation voltage: 2500 Vrms (min) • Switching speed: tpHL = 0.5 μs (typ.)
tpLH = 0.6 μs (typ.) (RL = 1.9 kΩ) • TTL compatible • If the base pin is open, external noise will cause interference to the output signal. In this scenario, TLP550 will be recommended. • UL-recognized: UL 1577, File No.
TLP551 Datasheet
