A6275EA

Voltage - Output:	4V
Base Part Number:	A6275
Supplier Device Package:	16-DIP
Package / Case:	16-DIP (0.300", 7.62mm)
Mounting Type:	Through Hole
Operating Temperature:	-40°C ~ 85°C (TA)
Applications:	--
Dimming:	--
Frequency:	20MHz
Current - Output / Channel:	60mA
Series:	--
Voltage - Supply (Max):	5.5V
Voltage - Supply (Min):	4.5V
Number of Outputs:	8
Internal Switch(s):	Yes
Topology:	Shift Register
Type:	Linear
Part Status:	Obsolete
Packaging:	Tube

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Introduction

A6275EA is an LED driver designed specifically for automotive use. It is a product within the PMIC (Power Management Integrated Circuit) - LED drivers family, used to regulate and control the current delivered to the light-emitting diode (LED). An LED is a semiconductor light source, and its brightness can be controlled by altering the current that passes through it.The A6275EA is designed to be placed on the backlighting circuit of automotive displays and can also be used in other automotive applications. It offers a complete solution for controlling the current to the LED and offers a range of features making it ideal for use in automotive applications.

Application Field

Due to its features and performance, A6275EA are widely used in automotive applications. Being able to drive current up to 1.5A, the A6275EA is ideal for displays and exterior lighting applications in automotive vehicles.The A6275EA can also be used for interior lighting applications. It has an adjustable output current limit which enables it to be set up with precise current control in order to regulate the current to the LED and thereby adjust its brightness.The A6275EA also offers numerous additional features such as over-current protection, over-voltage protection, thermal shutdown, and reverse battery protection. This makes it a reliable and robust solution for automotive applications.The A6275EA is suitable to be used in low voltage systems such as 12V, 18V, and 24V applications. It has very low power consumption and is able to turn on quickly. Therefore, it is suitable for use in LED backlighting displays of automotive instrument cluster, headlights, taillights, and other automotive lighting applications.

Working Principle

The A6275EA is an LED driver with a high efficiency constant current mode. It can supply up to 1.5A of constant current to the LED and its intensity can be fine tuned by adjusting the output current limit. When the LED current reaches the programmed output current limit, the A6275EA will go into a High-Gain Current Controlled Phase-Shift (HCPS) operating mode and reduce the LED current.The A6275EA features several protection features, such as internal short-circuit protection and over-voltage protection. Additionally, it can be used with a wide range of input voltages (between 4.5V and 60V). Its low power consumption also makes it an energy-efficient option and makes it suitable for mobile applications.

Conclusion

The A6275EA is a high-performance and energy-efficient LED driver designed specifically for automotive applications. It is capable of delivering up to 1.5A of current and its output can be fine tuned using an adjustable output current limit. It is suitable for use in low voltage applications, such as 12V, 18V, or 24V and its low power consumption makes it ideal for mobile applications. The A6275EA also offers several protection features such as short-circuit protection, over-voltage protection, thermal shutdown, and reverse battery protection making it a reliable and robust solution for automotive applications.

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