LP8556SQ-E00/NOPB

Product Overview

• Category: Integrated Circuit (IC)
• Use: LED Driver
• Characteristics: High efficiency, adjustable brightness, compact size
• Package: 20-WQFN (4x4)
• Essence: This IC is designed to drive LEDs in various applications, providing efficient and adjustable lighting solutions.
• Packaging/Quantity: Tape & Reel, 2500 units per reel

Specifications

• Input Voltage Range: 2.7V to 5.5V
• Output Current Range: Up to 1.5A
• Dimming Control: PWM or I2C
• Operating Temperature Range: -40°C to +85°C
• Efficiency: Up to 95%
• Protection Features: Overvoltage, overcurrent, and thermal shutdown

Pin Configuration

The LP8556SQ-E00/NOPB IC has a 20-pin WQFN package with the following pin configuration:

1. VCC
2. GND
3. EN
4. SDA
5. SCL
6. PWM
7. OUT1
8. OUT2
9. OUT3
10. OUT4
11. OUT5
12. OUT6
13. OUT7
14. OUT8
15. OUT9
16. OUT10
17. OUT11
18. OUT12
19. OUT13
20. OUT14

Functional Features

• Efficient LED driving with adjustable brightness levels
• Multiple output channels for driving different LED configurations
• Wide input voltage range for versatile applications
• Dimming control through either PWM or I2C interface
• Built-in protection features for safe operation

Advantages and Disadvantages

Advantages

• High efficiency results in energy savings
• Compact size allows for space-saving designs
• Adjustable brightness levels provide flexibility in lighting applications
• Wide input voltage range enables compatibility with various power sources

Disadvantages

• Limited to driving LEDs and not suitable for other types of loads
• Requires additional external components for proper operation

Working Principles

The LP8556SQ-E00/NOPB LED driver IC operates by converting the input voltage into a regulated current source for driving LEDs. It utilizes a high-efficiency switching regulator to achieve maximum power conversion efficiency. The brightness of the LEDs can be adjusted using either a PWM signal or an I2C interface, allowing for precise control.

Detailed Application Field Plans

The LP8556SQ-E00/NOPB LED driver IC finds applications in various fields, including:

1. Automotive lighting systems
2. Backlighting for LCD displays
3. Portable devices such as smartphones and tablets
4. Industrial and commercial lighting fixtures
5. Signage and advertising displays

Detailed and Complete Alternative Models

1. LP8555SQ-E00/NOPB: Similar to LP8556SQ-E00/NOPB but with fewer output channels.
2. LP8557SQ-E00/NOPB: Similar to LP8556SQ-E00/NOPB but with higher output current capability.
3. LP8558SQ-E00/NOPB: Similar to LP8556SQ-E00/NOPB but with additional protection features.

These alternative models offer similar functionality and can be considered based on specific application requirements.

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