QTLP9133ZR Optoelectronics

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LED is a common type of discrete indicator IC. It\'s long life, energy saving and high brightness have made it the most popular choice in electronic display applications. The QTLP9133ZR series is a latest LED product developed by Qualisys Technology. This series of parts is designed to provide a high brightness, reliable, cost-effective LED solution for low power applications.

The QTLP9133ZR has been specifically designed for use in discrete indication applications, making use of its low profile and small size. It is available in a wide range of colors, from reds, blues and greens to amber, white and royal purple. The device comes in a package that includes a red and green LED and integrated resistors for easy connection to the power source. The part has a nominal power supply voltage range of 2.7V to 5.5V and can achieve up to 3500mcd of illumination at 20mA.

The basic working principle of LED indicators is to control the forward current and therefore the brightness of the LED. When current is applied to the LED, it emits light, which is the result of electrons recombining with the material in the LED. The amount of current passing through the LED will determine the amount of light emitted, and this can be controlled through a variety of methods. Some common methods include voltage regulators, resistors and diodes, as well as various light emitting diode integrated circuits (ICs).

The QTLP9133ZR is a special type of LED IC that uses pulse width modulation (PWM) and current feedback control (CFC) technology to produce the desired brightness. The device includes an internal oscillator which sets the frequency of the PWM signal. The integrated PWM signal is then used to control the current passing through the LED, i.e. the intensity of illumination, as well as a Digital On/Off/Enable Control input to turn the LED on and off. When the current feedback control is enabled, the LED will be driven with a constant current and will automatically adjust based on the power supply voltage. This feature ensures a uniform light output without the need for external components or adjustments.

The QTLP9133ZR is a great choice for the most demanding LED applications, such as those in automotive, industrial and consumer products. The device\'s low power requirement, compact package and controllability makes it an ideal solution for LED lighting applications. In terms of use, it provides a simple and cost-effective way to improve the brightness of LEDs and can be used in both indoor and outdoor applications.

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