AS3694A-ZTQT

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

AS3694A-ZTQT PMIC-LED Drivers are a type of integrated circuit designed to operate as an interface to control enabling and disabling of a load and provide an adjustable output voltage and current. They are especially well-suited for use in LED applications, providing voltage and current control to a variety of connected lighting products, including LEDs, lamps and luminaires.

The AS3694A-ZTQT is an integrated switch-mode constant current source for low-power LED applications. This IC works as a dedicated current limiting circuit and can be used with a wide range of input voltages and load currents. The AS3694A-ZTQT contains a main switch-mode power-supply (SMPS) controller and output current limit circuitry tailored for LED applications. It also includes an improved analog programming feature that allows current setting and a system soft start for protection against inrush currents.

The output current of the AS3694A-ZTQT is determined by an internal analog current programming pin, a tiny trimming capacitor and an externally programmed voltage divider providing the nominal LED current level. The current limit setting is adjusted to a default value of 125 mA through the integrated peak current sensing and feedback loop. The output current can be adjusted up to 250 mA with a single capacitor and the aid of an external resistor.

The voltage that is provided to the LEDs is adjustable through an external voltage divider. The voltage range of the output voltage is from VHS to VLS. The output is regulated within +/-5 %, though this tolerance may vary according to the load current and the size of the voltage divider used. In addition, there is an overvoltage protection (OVP) circuit to protect the output from excess voltages and an undervoltage detection circuit to indicate an insufficient input supply voltage.

The AS3694A-ZTQT also has an integrated soft-start feature to protect against inrush currents and low-voltage power supply ripple interference. The reverse blocking input ensures that the LEDs and their associated circuitry are over-protected against reverse bias during power-up, power-down and power-supply switching operations. This integrated LED driver incorporates several high frequency switching techniques, making it highly efficient and suitable for low-power LED applications. The integrated over-temperature protection feature also prevents the circuit from over-heating due to excessive current draw and/or voltages.

The AS3694A-ZTQT PMIC-LED Drivers are ideally suited for a range of LED lighting applications, such as wall-washers, reading lights, and night lights. The flexibility and the accurate control of the current output makes it an ideal choice for controlling a wide range of LED products. Moreover, this LED driver is most suitable for applications that require constant LED current, such as LED screens and LED lighting systems.

Overall, the AS3694A-ZTQT PMIC-LED Drivers offer a robust and highly efficient LED driver circuit. The advanced circuitry design and accurate output current programming enable efficient operation and reliable performance in a wide variety of LED lighting applications. This LED driver can also be widely used with a wide range of input voltages and load currents.

The specific data is subject to PDF, and the above content is for reference