HCPL-817-50CE

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Number of Channels:	1
Voltage - Isolation:	5000Vrms
Current Transfer Ratio (Min):	200% @ 5mA
Current Transfer Ratio (Max):	400% @ 5mA
Turn On / Turn Off Time (Typ):	--
Rise / Fall Time (Typ):	4µs, 3µs
Input Type:	DC
Output Type:	Transistor
Voltage - Output (Max):	70V
Current - Output / Channel:	50mA
Voltage - Forward (Vf) (Typ):	1.2V
Current - DC Forward (If) (Max):	50mA
Vce Saturation (Max):	200mV
Operating Temperature:	-30°C ~ 100°C
Mounting Type:	Surface Mount
Package / Case:	4-SMD, Gull Wing
Supplier Device Package:	4-SMD

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Introduction

HCPL-817-50CE is a high-speed optocoupler as part of Avago\'s HCPL series. This type of optocoupler is designed for power applications such as motor control, power supplies, server and industrial control, and renewable energy systems. The HCPL-817-50CE is a 4-pin optocoupler with a photo transistor output and a peak output current of 50 mA. It is designed to provide excellent electrical insulation between the input and output by using a light-emitting diode to transmit the signal.

Application Field and Working Principle

In general, optoisolators are used to protect sensitive circuits from high voltage transients and other hazardous conditions. The HCPL-817-50CE optocoupler is primarily designed for power applications as a low voltage input with a high-current output. It has a 4-pin package which consists of an LED input with 1 kV isolation, a transistor output, an inverter output, and an emitter output. The HCPL-817-50CE works by utilizing a photo-transistor output to switch a large current load with a low voltage input signal. The LED input data is transmitted onto the collector load of the photo-transistor through the photo-diode. The current output of the optocoupler is then regulated by the voltage of the LED input. The output voltage and current ratings for the HCPL-817-50CE are 0.8-2.7 V and 0.25-50 mA respectively. This type of optocoupler provides a noise immunity of >8000 V/μs for common-mode transients. It also has a wide operating temperature range from -55 to 150°C. The optoisolator is also UL recognized and is compliant with IEC 60950-1 and CSA certification. It is also RoHS complaint and Lead-free (PbF) compatible.

Advantages

The HCPL-817-50CE optocoupler offers various advantages such as protection from hazardous voltage transients, high open circuit output voltage, low saturation voltage, wide operating temperature range, and fast switching speed. The optocoupler provides a high isolation voltage of 1 kV in addition to its high speed switching capability. It guarantees a low saturation voltage of 0.8-2.7V and a fast turn-on and turn-off times of 7 μs and 3 μs, respectively. Another advantage of the HCPL-817-50CE is its wide operating temperature range from -55 to 150°C. This enables it to be used in various harsh environments. Another important feature of this optocoupler is its wide dynamic range which provides maximum flexibility for users. The optocoupler can be used in 24 V ac/dc, 48V ac/dc, and 12 V dc systems with the same optimum performance.

Conclusion

In conclusion, the HCPL-817-50CE optocoupler is designed for power application and offers various advantages such as high electrical isolation, wide operating temperature range, high speed switching capabilities, and a wide dynamic range. It is also UL and IEC 60950-1 certified, RoHS complaint, and PbF compatible. This optocoupler is ideal for use in power applications such as motor controllers, power supplies, servers, industrial control, and renewable energy systems.

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