HCPL-7721-320

Series:	--
Packaging:	Tube
Part Status:	Active
Number of Channels:	1
Inputs - Side 1/Side 2:	1/0
Voltage - Isolation:	5000Vrms
Common Mode Transient Immunity (Min):	10kV/µs
Input Type:	Logic
Output Type:	Push-Pull, Totem Pole
Current - Output / Channel:	10mA
Data Rate:	25MBd
Propagation Delay tpLH / tpHL (Max):	40ns, 40ns
Rise / Fall Time (Typ):	9ns, 8ns
Voltage - Forward (Vf) (Typ):	--
Current - DC Forward (If) (Max):	--
Voltage - Supply:	4.5 V ~ 5.5 V
Operating Temperature:	-40°C ~ 85°C
Mounting Type:	Surface Mount
Package / Case:	8-SMD, Gull Wing
Supplier Device Package:	8-DIP Gull Wing

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HCPL-7721-320 is an optoisolator in the Logic Output family. It is an opto-coupled device composed of an infrared emitting diode optically coupled to an NPN silicon photo detector integrated circuit. It is commonly used to provide electrical isolation between two circuits, allowing them to communicate while preventing them from being affected by different ground potentials and noise interference.The HCPL-7721-320 optoisolator has a wide variety of applications. In AC to DC power conversion, it is used to provide electrical isolation between the AC line and the DC circuit. It prevents any voltage spikes and noise entering the DC side from the AC line, which can cause damage or malfunction of the DC circuit. It is also used to separate the control circuit from the power circuit, allowing for electrical control over the power circuit without actually being connected to it.In industrial automation, the HCPL-7721-320 optoisolator is commonly used to interface digital logic signals with higher voltage lines. It is typically used in relays and switches, providing power from the mains without endangering the logic circuit. For automotive applications, it is used with ignition switches, reversing light sensors, engine control units, and seatbelt safety systems.The HCPL-7721-320 optoisolator works on the principle of an LED and photodetector circuit. The LED portion is connected to the input side and the photodetector integrated circuit is connected to the output side. When an input signal is applied to the input side, the LED emits an infrared light which is received by the photodetector. The photodetector in turn produces an electrical signal at its output which is fed to the output side.The HCPL-7721-320 optoisolator has a wide range of operating frequencies and a high noise immunity of up to 50V/m. It offers galvanic isolation of up to 4.0kV and operates over a wide temperature range of -40°C to +85°C. The device is offered in the standard DIP package and has an efficient power consumption of only 40mW. It also features excellent parametric performance and is UL recognized and CSA certified. As a leading manufacturer of optoisolators, Avago Technologies’ HCPL-7721-320 optoisolator is suitable for a wide variety of isolation application fields. Whether it is power conversion, industrial control, automotive, or other commercial applications, its excellent performance, small size, and low power consumption makes it an reliable device for complex designs. Its wide temperature range and high noise immunity is also ideal for use in industrial and automotive environments.

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