TSOP34438SS1F

Optical sensors are devices that use light for detecting presence, counting, or measuring properties of a material. Photo detectors, specifically, are sensors that detect light levels by converting them into a usable voltage. Furthermore, remote receivers are photo detectors that are designed to detect modulated infrared signals from a remote control. This made them ideal for control, user interface, and indicator applications. Such a device is the TSOP34438SS1F.

TSOP34438SS1F Application Field

The TSOP34438SS1F is a remote receiver ideal for applications that require the detection of low to mid range power infrared remote control pulses, for example most consumer IR remotes. It has an operating frequency of 36 kHz and a range of distances special for short range and near range applications. Its features include high noise immunity, high immunity to ambient light, high sensitivity, low power consumption, low voltage, and direct digital output.

The TSOP34438SS1F also features a buffered transistor output, which can drive LED indicator, static relay and acoustical buzzer. This makes it suitable for low power indicator applications like automotive digital locking systems and audio-video remote controls. Another application where the TSOP34438SS1F is widely used is with low power embedded systems.

TSOP34438SS1F Working Principle

The TSOP34438SS1F comprises of an infrared photodiode and integrated circuitry. The infrared photodiode receives an infrared light signal and converts it into electrical signals upon detecting the modulation of the signal from the transmitting device. It then feeds the signal into integrated circuitry which amplifies the signal and cleans up any noise or interference. Finally, the signal is processed by an output transistor, and a digital output is generated.

The TSOP34438SS1F has a high sensitivity range from 0.25-3.6 V/m and it comes with an operating temperature range of -30C to +85C. In addition, it has a low voltage consumption with a maximum power supply of 6V. The TSOP34438SS1F is available in an 8-PIN DIP package.

Conclusion

The TSOP34438SS1F is a remote receiver with low to mid range infrared power capability, ideal for consumer IR remotes as well as automotive and embedded system applications. It has a buffered transistor output that can be used for LED indicators and static relays. Furthermore, it has a high resistance to noise and ambient light, making it a reliable device for such applications. The TSOP34438SS1F is available with an 8-PIN DIP package and it is compatible with low voltage systems.