PS9821-1-A

Series:	NEPOC
Packaging:	Bulk
Part Status:	Obsolete
Number of Channels:	1
Inputs - Side 1/Side 2:	1/0
Voltage - Isolation:	2500Vrms
Common Mode Transient Immunity (Min):	15kV/µs
Input Type:	DC
Output Type:	Open Collector
Current - Output / Channel:	25mA
Data Rate:	15Mbps
Propagation Delay tpLH / tpHL (Max):	75ns, 75ns
Rise / Fall Time (Typ):	20ns, 5ns
Voltage - Forward (Vf) (Typ):	1.65V
Current - DC Forward (If) (Max):	20mA
Voltage - Supply:	2.7 V ~ 3.6 V
Operating Temperature:	-40°C ~ 85°C
Mounting Type:	Surface Mount
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Supplier Device Package:	8-SSOP

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Optoisolators - Logic Output

Optoisolators are devices that use optical signals to carry data or process signals in electronic circuits. They are able to isolate a high-voltage circuit from a low-voltage one, eliminating the possibility of signal leakage or other electrical problems that can arise due to differences in voltage levels. The PS9821-1-A optoisolator is typically used in logic outputs, such as for switching on and off various electronic components and they are one of the most widely used types of optoisolator.The PS9821-1-A optoisolator is a single channel device that consists of an infrared emitting diode (IED) and a phototransistor (PT) mounted in a two-lead plastic package. The plastic package helps to protect the components from EMI interference and corrosion. The IED, also known as an LED, emits an infrared light which is then detected by the PT, which is triggered by the received light signal. When the infrared light is received, the PT allows the output switch to be closed or opened, which can then be used to control and operate various electronic components.The main feature of the PS9821-1-A optoisolator is its wide operating temperature range of -40°C to +85°C and its long distance performance. It is also able to operate at a wide range of voltages, such as between 2.5V and 18V. It also features fast switching speed of up to 100 ns. This allows for quick responses when the device is used in applications like logic outputs, in which millisecond level responses are needed for operation.The PS9821-1-A optoisolator is mainly used as a logic output in applications where two levels of electronic signals need to be isolated, such as in driving motors or controlling lights. For instance, the optoisolator can be used to enable or disable an electric motor by opening and closing an output switch based on the inputted signal. The device can also be used to turn on and off lights based on console inputs.The PS9821-1-A optoisolator is also used in automobile applications, such as in powertrain control modules and in airbag control modules. In these applications, the device is used to provide low voltage control for high voltage circuits. As such, it is also much safer than traditional relays which can be easily damaged by high voltage signals.The PS9821-1-A optoisolator is a reliable, cost-effective and easy to use device that can provide a range of benefits in applications where logic output and isolation are needed. It is an excellent choice for applications such as motor control, lighting control, and automotive applications.

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