A6276EA

Voltage - Output:	4V
Base Part Number:	A6276
Supplier Device Package:	24-DIP
Package / Case:	24-DIP (0.300", 7.62mm)
Mounting Type:	Through Hole
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Part Status:	Obsolete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:	Tube

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Introduction

The A6276EA is an integrated current regulator designed for powering LEDs from an AC/DC input. This integrated circuit can turn an AC voltage into a stable DC current that is suitable for driving LEDs. It is a Buck-Boost regulator, and it regulates both the input voltage and current of the LEDs, making it ideal for driving multiple LEDs in a string.

Working Principle

The A6276EA regulates the input voltage of the LEDs by adjusting the gain of the amplifier. The amplifier has a variable response time, allowing it to keep the input voltage constant, even if the input is varying. The current regulator then uses a feedback loop to adjust the current, keeping it in constant. The other components of the A6276EA include a diode bridge, a shunt regulator, voltage reference, and an error amplifier, all of which work together to regulate the input voltage and current of the LEDs.

Application Fields

The A6276EA is widely used in LED lighting applications. It is an ideal choice for lighting applications where multiple LEDs are driven in series, as it can regulate the input voltage and current of each LED. It is also suitable for applications where a single LED requires a constant current to ensure proper brightness. Furthermore, it can also be used in applications where the LED current needs to be monitored and adjusted in order to ensure the LED\'s performance is maintained and its lifespan is maximized.

Conclusion

The A6276EA is a versatile integrated circuit that can regulate both the input voltage and current of LEDs. It is an ideal choice for LED lighting applications, as it can regulate the input voltage and current of each LED, allowing for single or multiple LED configurations. It is also suitable for applications where the LED current needs to be monitored and adjusted, allowing for optimal brightness and performance. Overall, the A6276EA is an efficient and reliable integrated circuit for powering LEDs.

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