EL4502M

Output Type:	Transistor
Supplier Device Package:	8-DIP
Package / Case:	8-DIP (0.400", 10.16mm)
Mounting Type:	Through Hole
Operating Temperature:	-55°C ~ 100°C
Vce Saturation (Max):	--
Current - DC Forward (If) (Max):	25mA
Voltage - Forward (Vf) (Typ):	1.45V
Current - Output / Channel:	8mA
Voltage - Output (Max):	20V
Series:	--
Input Type:	DC
Rise / Fall Time (Typ):	--
Turn On / Turn Off Time (Typ):	350ns, 300ns
Current Transfer Ratio (Max):	50% @ 16mA
Current Transfer Ratio (Min):	19% @ 16mA
Voltage - Isolation:	5000Vrms
Number of Channels:	1
Part Status:	Active
Packaging:	Tube

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The EL4502M optoisolator is an output optoisolator of the transistor, photovoltaic type. It is designed to insulate noisy or high voltage circuits from input control circuits. The optoisolator utilizes a light emitting diode (LED) coupled with a photovoltaic cell in a single package. The LED emits light when activated by the input circuit, which is in turn received by the photovoltaic cell and converted into an electrical signal on the output side. This process ensures isolation between the input and output sides while maintaining the same logic level. The EL4502M features a guaranteed minimum 10kV/μs common mode transient immunity (CM suppression) and very low (50pV/V/degC) temperature coefficient.ApplicationsThe EL4502M optoisolator is commonly used in a variety of harsh electrical environments where electromagnetic interference (EMI) and spikes are frequent. Such environments include:• Industrial automation and control systems• Test and measurement equipment• Motor control systems• Signal isolation• Communications systems• Automotive systemsThe EL4502M provides reliable optoisolator performance in these environments by isolating the output circuit from the input circuit while maintaining compatibility and compatibility with both TTL and CMOS logic systems.Working principleAt the heart of the EL4502M lies a light emitting diode (LED) and a photovoltaic cell. When the input circuit supplies a voltage to the LED, it emits light proportional to the input current. This light is then received by the photovoltaic cell, which converts the light into electricity. The resulting electrical signal, still compatible with TTL and CMOS logic standards, is then output on the output side of the optoisolator.The EL4502M is designed to provide a non-invasive solution for electrical noise or high voltage management. Its two-term output ensures signal reliability, allowing logic circuits to read clean signals on both the input and output sides. The EL4502M provides guaranteed minimum 10kV/μs common mode transient immunity (CM suppression) and very low (50pV/V/degC) temperature coefficient.ConclusionThe EL4502M optoisolator is a transistor, photovoltaic output type optoisolator designed for use in demanding electrical environments. It couples an LED and photovoltaic cell into a single package that ensures signal isolation while maintaining input and output compatibility. It features common mode transient immunity of 10kV/μs and temperature coefficient of 50pV/V/degC. The EL4502M is utilized in a variety of applications, including industrial automation, motor control, and automotive systems.

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