A6276ELPTR-T

Voltage - Output:	4V
Base Part Number:	A6276
Supplier Device Package:	24-TSSOP-EP
Package / Case:	24-TSSOP (0.173", 4.40mm Width) Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Applications:	--
Dimming:	--
Frequency:	20MHz
Current - Output / Channel:	75.5mA
Series:	--
Voltage - Supply (Max):	5.5V
Voltage - Supply (Min):	4.5V
Number of Outputs:	16
Internal Switch(s):	Yes
Topology:	Shift Register
Type:	Linear
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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Introduction to A6276ELPTR-T

A6276ELPTR-T, an low power multifunctional power management IC from Allegro MicroSystems, Inc., is a member of the PMIC - LED Drivers family. It is designed to drive up to eight Parallel LEDs based on user settings. This device features a wide input voltage range with low quiescent current, allowing the device to be used in various power saving applications.

Features

The A6276ELPTR-T offers a range of features to meet the requirements of various applications. It can be operated in several modes such as Direct PWM Dimming, Pulse Width Modulation (PWM), and Animation Sequencing. It features built-in Leading Edge Blanking (LEB) that reduces glitches in LED output. The device offers internal current mirror structure and a high efficiency current regulation to accurately control LED current, even under varying input voltage conditions. The A6276ELPTR-T also includes a 60KHz differential output frequency for smooth animations or PWM dimming.

A6276ELPTR-T Application Field and Working Principle

The A6276ELPTR-T is generally used for driving up to eight simultaneous LEDs with smooth, steady light output and improved system efficiency. It enables the users to easily create a variety of lighting effects, from smoothly dimmed LED brightness to intricate sequences of LED flashes using the LED animation mode.The A6276ELPTR-T works by converting the input voltage into a controlled current output through various control methods such as allowing direct PWM dimming, Pulse Width Modulation (PWM), and Animation Sequencing. The device achieves controlled current through an internal current mirror structure and high efficiency current regulation. This enables the device to accurately control LED current, even under varying input voltage conditions, with minimal power wastage. Through internal Leading Edge Blanking (LEB), the device reduces glitches in LED output. It also features adjustable switching frequency from 12KHz - 60KHz to ensure smooth dimming or animation effects. In addition, the A6276ELPTR-T can be configured for a wide range of operating voltages, such as 5.5V - 18V for multiple output modes and 4V - 18V for PWM and 2-PWM dimming. Overall, the A6276ELPTR-T is a low-power, multifunctional power management IC suitable for various lighting applications. It offers a range of features such as varying input voltage range, low quiescent current, and an internal current mirror structure to accurately control LED current. Through the device’s advanced features, users can create a variety of smooth animation effects and easy dimming with minimal power wastage.

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