AS3693E QFN DB Development Boards, Kits, Programmers

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The AS3693E QFN DB is an integrated LED driver, designed for application fields requiring energy efficient and space saving solutions. It features a total output of 8 channels that can operate in two, four or eight configurations. The AS3693E QFN DB works in conjunction with a number of other components (each sold separately) to produce the desired level of LED brightness and control.

The evaluation board LED drivers are essential to the operation of the AS3693E QFN DB. They provide the power supply that is used to control the LEDs. The evaluation boards come in four different configurations and are available with an ATmega328 to control the LED\'s brightness and also contain any optional fault protection or limiting components that may be used in the system. The evaluation board also includes a bootloader to further customize the board to fit the application.

The AS3693E QFN DB is a single channel, high efficiency, low power, monolithic LED driver. It provides effective control and dimming of LEDs with a maximum current of 6 amps. It combines a low dropout linear regulator and a step-up converter along with an integrated precision current regulator to drive and dim single or multiple strings of LEDs with a simple I2C interface. The current regulator is designed for high power applications and is capable of sustaining extremely low line-side voltage variations.

The device allows for versatile dimming and current control options. The full range of dimming options includes analog voltage and dimming, PWM dimming, and two-wire digital dimming. The two-wire digital dimming feature provides a simple communication protocol with unique capability of adjusting the dimming level while the other channels are still outputting current.

In addition to dimming and current control, the AS3693E QFN DB provides multiple current setting options. This includes both static and dynamic current control. Static current control works by supplying a designated current to each LED. Dynamic current control allows for regulated changes in the current to each LED with a constant voltage supply. This allows for the LEDs to receive simultaneous variations in brightness without undergoing rapid fluctuations in power supply.

The driver features an integrated protection circuit to protect the LED from faults such as over voltage, current limit, short circuit, thermal over-heat and open-circuit detection. This protection circuit is designed to shut down the device if it detects a fault, eliminating the risk of damage to the LED. It also provides advanced fault diagnostic functions enabling the user to detect and identify the cause of any potential faults.

The AS3693E QFN DB is an excellent choice for applications requiring energy efficiency and low power consumption. Its versatile current and dimming control capabilities and integrated protection circuit ensure that the system can operate safely in a wide variety of situations. It is an ideal solution for applications where space constraints are an issue, as the footprint can be kept to a minimum. The integrated features of the AS3693E QFN DB make it a versatile choice for LED drivers.

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