Description
The HCPL-181 contains a light emitting diode optically coupled to a phototransistor. It is packaged in a 4-pin mini-flat SMD package with a 2.0 mm profile. The small dimension of this product allows significant space saving. The package volume is 30% smaller than that of conventional DIP type. Input-output isolation voltage is 3750 Vrms. Response time, tr, is typically 4 µs and minimum CTR is
50% at input current of 5 mA.

FEATUREs
• Current Transfer Ratio (CTR: min. 50% at IF= 5 mA,VCE= 5 V)
• High input-output isolation voltage (Viso= 3750 Vrms)
• High collector-emitter voltage (VCEO = 80 V)
• Response time (tr: typ., 4 µs at VCE= 2 V, IC= 2 mA, RL= 100 Ω)
• Mini-flat package (2.0 mm profile) in tape and reel package
• UL approved
• CSA approved
• IEC/EN/DIN EN 60747-5-2 approved
• Options available:
– IEC/EN/DIN EN 60747-5-2 approvals (060)

APPLICATIONs
• I/O interfaces for computers
• System appliances, measuring in struments
• Signal transmission between circuits of different potentials andimpedances
• Feedback circuit in power supply