H11A5TVM

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Optoisolators - Transistor, Photovoltaic Output are typically used to provide electrical isolation of a low voltage digital signal from a higher voltage analog signal. This type of isolation is particularly useful in medical and industrial applications, where it is essential to prevent high voltages from propagating to sensitive electronics. H11A5TVM is a Photovoltaic Output optoisolator which offers additional benefits over traditional isolation methods.

Application Fields for H11A5TVM

H11A5TVM can be used in a wide range of applications due to its high isolation voltage, 1.4 kV, wide operating temperature range of -65°C to +105°C, and low leakage currents. Additionally, the device is surface mount package, making it well-suited for applications where space is limited or board layout may be an issue. The applications for H11A5TVM include medical equipment, industrial equipment, data acquisition systems, signal conditioning and safety systems, and many other applications where electrical isolation is required.

Working Principle of H11A5TVM

H11A5TVM consists of an infrared LED as its light source, a phototransistor as the transistor output, and an integrated-circuit drive circuit. The LED is driven by an external or integrated drive signal, which causes a current to flow through the LED and create photons. The phototransistor is connected on the opposite side of the plastic optoisolator body, and when the photons created from the LED arrive at the phototransistor, the transistor is activated. The transistor output then follows the drive signal, providing an isolated output identical to the externally supplied drive signal. The output is proportional to the LED drive current, and the device can provide a wide dynamic range depending on the size of the LED drive current.

Conclusion

The H11A5TVM is a two-channel optoisolator which is widely used in a variety of industries. With a high isolation voltage, wide operating temperature range, and many other features, it is an ideal device for isolating low voltage digital signals from high voltage analog signals. The device is able to pass voltage through its optoisolator in order to provide a low impedance and a high level of isolation. With its external or integrated drive signal, it has a wide dynamic range for optimum performance.

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