AL5802LP-7 Integrated Circuits (ICs)

Series:	--
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Type:	Linear
Topology:	--
Internal Switch(s):	Yes
Number of Outputs:	1
Voltage - Supply (Min):	4.5V
Voltage - Supply (Max):	30V
Voltage - Output:	30V
Current - Output / Channel:	150mA
Frequency:	--
Dimming:	PWM
Applications:	Signage
Operating Temperature:	-40°C ~ 125°C (TA)
Mounting Type:	Surface Mount
Package / Case:	6-XFDFN Exposed Pad
Supplier Device Package:	U-DFN1616-6

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Introduction

AL5802LP-7 is a highly integrated PMIC – LED Driver developed by AOS, providing peak current in the range of 350mA-800mA for lighting and consumer electronics applications, such as tablets, cell phones, and more. The device has a tiny footprint and features a wide input voltage range that is compatible with most of the battery technologies available today. It also has a wide range of control modes and adjustable parameters, as well as low overhead current, making it an ideal choice for high efficiency and flexible applications.

Application Field

AL5802LP-7 is a low-cost, high-performance LED driver suitable for various applications including backlighting, LED strips, and billboards. The device offers the highest peak current of up to 800 mA, allowing it to deliver incredible brightness. It can operate in boost, buck-boost and buck topologies, and it is capable of working as a simple off-on switch, eliminating the need for any external circuitry. The on-board pre- doray Output over-current and over-voltage protection make it an ideal choice for clients needing an ultra-high efficiency LED system. Furthermore, it supports multiple dimming techniques such as PWM and Pulse Density Modulation (PDM), enabling a wide range of light outputs for greater design flexibility.

Working Principle

The device works by converting and regulating the input voltage to the desired output voltage and current. It consists of a power switch and a boost or buck-boost converter. The power switch regulates the load current and voltage to the desired level and when the load current or voltage is greater than the maximum acceptable, the device is shut down automatically to prevent any damage. The power switch is also responsible for the constant current regulation of the LED driver. The boost or buck-boost converter helps regulate the output voltage of the driver, depending on the input voltage. Finally, AL5802LP-7 also has an internal voltage reference, which helps the device achieve improved accuracy and higher load current accuracy compared to external references.

Conclusion

AL5802LP-7 is a highly flexible and efficient LED driver suitable for a variety of applications. Its wide input voltage range, high peak current, and multiple dimming techniques make it an ideal choice for lighting and consumer electronics applications. Its low overhead current and precision control make it a reliable choice for even the most demanding projects. Furthermore, its on-board pre-doray Output over-current and over-voltage protection increases its suitability for sensitive devices. Overall, AL5802LP-7 is an excellent PMIC - LED driver for its performance and cost-effectiveness.

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