H11B23SD

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Number of Channels:	1
Voltage - Isolation:	5300Vrms
Current Transfer Ratio (Min):	200% @ 1mA
Current Transfer Ratio (Max):	--
Turn On / Turn Off Time (Typ):	25µs, 18µs
Rise / Fall Time (Typ):	--
Input Type:	DC
Output Type:	Darlington with Base
Voltage - Output (Max):	25V
Current - Output / Channel:	--
Voltage - Forward (Vf) (Typ):	1.2V
Current - DC Forward (If) (Max):	100mA
Vce Saturation (Max):	1V
Operating Temperature:	-55°C ~ 100°C
Mounting Type:	Surface Mount
Package / Case:	6-SMD, Gull Wing
Supplier Device Package:	6-SMD

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Optoisolators - Transistor, Photovoltaic Output

Optoisolators are devices that provide electrical isolation between two circuits, alleviating the need for traditional wiring between the circuits. H11B23SD optoisolator is an ideal solution for isolating low-voltage circuits, providing 1280V peak achievable isolation between input and output. The advantages of optoisolator-based designs can be orders of magnitude more reliable, reduce ground loops and provides protection against overvoltages.H11B23SD optoisolators feature a transistor, photovoltaic output with low saturation voltage. This type of optoisolator responds rapidly to changes in the current flowing through its input LED while relying on a very low current for operation. Its positive current-control of the output provides a fast switching times and low quiescent current. With this fast response time, it is suited for applications that require high-speed operation without sacrificing the electrical isolation of the circuits.In terms of operation principle, when an input signal is applied to the LED within the optoisolator, the photons produce electron-hole pairs in the phototransistor base junction, resulting in junction potential that forward biases the phototransistor and turns it on. This creates a current flow, where the collector voltage is almost equal to the motor voltage, therefore producing an output. As the LED current increases, the transistor is driven into saturation and the collector voltage drops to a saturation voltage VCEsat, providing a fast and efficient method of electrical isolation.An example application of the H11B23SD optoisolator is controlling the motor speed and direction of a DC motor in a process control system. A control signal is sent from a controller un the process control system to the optoisolator LED, causing the phototransistor to switch on and supply power to the DC motor. As the LED current increases, the motor speed increases, thereby controlling the speed of the motor system.The ability to connect two isolated systems without the need for physical wiring makes H11B23SD suitable for systems that may not be compatible without the optoisolator. It also comes in a range of packages that are suitable for many applications, such as a Dual In-line Package, making it easier to install in boards. Optoisolators play an important role in protecting circuits from damage or interference. When properly applied, optoisolators can provide superior performance in applications that demand high-power switches and other electronic devices.In summary, the H11B23SD optoisolator is a reliable, low-voltage optical isolator with a transistor, photovoltaic output that provides a wide range of fast switching times and low quiescent. It offers superior performance in applications that require fast-acting, electrical isolation between two or more circuits. With its ability to respond rapidly to changing conditions, it is an ideal choice for use in motor speed control applications and provides protection against overvoltages.

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