PCA9626B,118

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PCA9626B is a kind of LED driver which belongs to PMIC (Power Management Integrated Circuit) family. It is a low-voltage, low-power, I2C compatible, 8-bit addressable LED driver for single-color LEDs. PCA9626B is used for driving high side LED strings which drive 2 strings of LEDs that provide a regulated output current from 100 mA up to 400 mA, respectively. The PCA9626B LED driver can be used as a high side driver for dimming LED strings for wide range of LED applications such as backlighting, LED lighting, and automotive lighting.

The distinctive features of PCA9626B LED drivers are its high-side driving capability and adjustable PWM frequency per channel which allows adjustability in brightness of LEDs depending on the requirement of the application. Due to its small size, the PCA9626B is widely used in cars and other automotive applications. Other than this, the PCA9626B drivers can also be used in any kind of light display such as billboards, signs, and lighting applications like city lighting, entertainment lighting, and architectural lighting.

The working principle behind the PCA9626B drivers is quite simple. Firstly, an I2C compatible 8-bit addressable LED driver is used which enables the user to select up to 8 separate LEDs. Secondly, there is a low-voltage, low-power driver which allows flexibility in terms of power consumption, cost, and design. Once the desired LED is selected, a regulated DC current is applied to the selected LED which allows adjustment of the brightness of the LED via Pulse-Width Modulation (PWM). The higher the modulated frequency, the higher the dimming capability and hence the brightness of the LED.

Moreover, the PCA9626B LED driver also has high side driving capability which helps in minimizing the usage of additional boards and wiring and hence reducing total system cost. It also provides an adjustable frequency per channel which allows flexibility in setting the brightness of the LEDs. Additionally, the driver also has a four-step accuracy which helps in maintaining uniformity of light over the LED strings.

The PCA9626B LED drivers can be used in a variety of applications that require 40mA to 400mA LED current and a PWM dimming capability. It is widely used in LED lighting and automotive lighting applications as well as any other kind of light display such as billboards and signs. The PCA9626B drivers are highly efficient and economical solutions for LED lighting solutions in various industries.

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