A6276EA-T

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

The A6276EA-T is part of a family of pulse-width modulation (PWM) current regulators manufactured by Allegro MicroSystems. It is classified as a PMIC - LED Drivers device, which is an integrated circuit optimized for providing an ideal operating environment for LEDs, a type of light-emitting diode. The device’s job is to provide a constant and regulated current to the LED, regardless of the voltage supplied to it.

The A6276EA-T offers a range of current settings and dimming capabilities that are essential for designers of applications that involve the use of LEDs. It is a highly integrated device that contains two independent PWM controllers and two independent output current regulators. It is designed to operate from either a 2.3 V to 5.5 V power supply and has an output current range of 3 mA to 50 mA. The output current is adjustable with a single external resistor and a single voltage reference, simplifying the design using the device.

The A6276EA-T\'s two independent PWM controllers are used to dim the LED by controlling the output current. The PWM controllers provide a cycle-by-cycle current regulation, composed of a fixed frequency of 10 kHz and a selectable duty cycle. This allows the LED output to be smoothly dimmed with no flickering or jitters. The LED current at low duty cycles is also maintained tightly thanks to the high resolution dimming of the device.

In addition to its dimming capabilities, the A6276EA-T also enables designers to control the LED current by adjusting the voltage reference, eliminating the need for an external low-power linear regulator. This capability makes the device suitable for a wide range of lighting applications. The device also features a thermal shutdown circuit and a short-circuit protection circuit that protect the LED from damage due to over-current or other over-voltage conditions.

The A6276EA-T is suitable for use in a wide range of lighting applications, including automotive and general lighting, backlighting (such as LCDs and LEDs), industrial lighting, and outdoor lighting. Its power-saving features, high-accuracy dimming capability, and protection features provide superior performance compared to conventional lighting applications.

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