TLP785(GB,F)

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Optoisolators provide electrical isolation between a control circuit and a power-line connected load. In the domain of optoisolators, the TLP785F and TLP785GB, manufactured by Panasonic, are gain-controlled photovoltaic input and transistor output optoisolators. As a reliable and efficient means of isolation, these optoisolators are ideal for automotive motor control such as fuel injection, power supply, lighting, and transmission systems.

The TLP785(GB,F) features a 4-pin package that makes it easy to integrate into any application. It also has an LED, photovoltaic detector, gain-controller, and transistor output. The optoisolator can achieve commutation speeds of up to 2kHz, ensuring efficient and accurate operation. A unique feature of the device is its pre-calibrated linear-gain feedback control. This provides an optimal level of gain-control over the entire commutation cycle, improving the device’s robustness and noise immunity. The TLP785(GB,F) also has a low power consumption rating of 6mA and a maximum operating supply voltage of 20V, making it highly energy-efficient.

The working principle of the TLP785(GB,F) optoisolator is simple. The LED emitter within the package transmits an input signal across the isolation barrier. This signal is received by the optoisolator’s photovoltaic detector, which produces an electric current. The gain-controller adjusts the current in order to maintain a preset linear gain across the input signal range. The resulting current is used to drive the output transistor, which provides an output signal with the same phase and shape as the original input signal. This allows the device to provide efficient electrical isolation without any compromise in signal quality.

The TLP785(GB,F) optoisolator is designed for a variety of applications, such as motor control, automotive electronics, and power supplies. Its linear-gain control feature helps to reduce the risk of overshoot or undershoot, so it is well-suited for automotive motor control systems. Additionally, its low power consumption rating makes it suitable for power supplies and automotive electronic applications.

In summary, the TLP785(GB,F) optoisolator from Panasonic is an ideal solution for providing reliable and efficient electrical isolation between a control circuit and a power-line connected load. Its linear-gain control feature helps to reduce the risk of overshoot or undershoot, making it ideal for automotive motor control systems. Additionally, its low power consumption and commutation speed of up to 2kHz make it suitable for a variety of applications, such as motor control, automotive electronics, and power supplies.

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