STP16DP05B1R

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PMIC (Power Management Integrated Circuit) is a key component in modern electronic devices, and LED Drivers are a special type of PMICs that are used to control and operate Light Emitting Diodes (LEDs). STP16DP05B1R is an LED Driver from STMicroelectronics, designed for applications that require high visible light levels with variety of dimming capabilities and low-power consumption. It is a versatile device and supports a wde range of application fields.

Application Field

The STP16DP05B1R LED driver is suitable for a variety of lighting applications, such as LCD backlighting, LED spotlight, LED lighting, and decorative lighting. It has an adjustable output current of up to 200mA and up to 8 LED channels, making it an ideal solution for controlling multi-channel LEDs. It also has an adjustable dimming range of 0 - 100%, giving designers the flexibility to adjust the brightness of the LEDs. The device also offers up to 63 cluster dimming configurations, with the ability to drive clusters of LEDs independently of each other, allowing for greater customization of the lighting system.

In addition, the STP16DP05B1R has a wide range of operating voltages, from 2.5V to 17V, making it suitable for a wide range of applications. Additionally, the device is designed to be compatible with a variety of different PWM dimming options, including resistive and capacitive dimming. It also supports a number of different protocols, such as DALI and DSI, enabling it to be used in a wide range of lighting systems.

Working Principle

The STP16DP05B1R LED driver employs a switching regulator design with a dedicated switching circuit, which allows it to deliver a constant current over a wide range of input and output voltages. The device includes a low-voltage step-up circuit, which allows the device to operate with a voltage between 2.5V and 17V, making it suitable for use in a variety of different applications. The device also includes a high-voltage switch that allows the user to adjust the output current of the device up to a maximum of 200mA.

The device also contains a bridge rectifier circuit, which converts the AC input signal into a DC signal, and then a PWM controller circuit that is used to control the switching of the device. The PWM control circuit is responsible for controlling the duty cycle of the device and is used to adjust the brightness of the LED based on the input signal from the user. The device also includes an integrated LED driver, which is used to drive the LED directly with no additional components. The LED driver circuit can be used to drive different types of LEDs, with a maximum of 8 channels.

The STP16DP05B1R LED driver also has an integrated high-efficiency buck converter circuit that is used to adjust the voltage to a suitable level for the LED. The device can also be powered by a low-voltage direct current (DC) power supply, making it ideal for applications that require a high level of portability.

In summary, the STP16DP05B1R device is a versatile and reliable LED driver suitable for a variety of applications, offering adjustable output current, adjustable dimming range and a wide range of operating voltages. The device supports a number of different protocols and dimming options, enabling it to be used in a wide range of lighting systems. It is also compatible with a low-voltage DC power supply, making it ideal for portable lighting applications.

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