LP8550TLX/NOPB

Product Overview

• Category: Integrated Circuit (IC)
• Use: LED Driver
• Characteristics: High efficiency, adjustable brightness, compact size
• Package: Thin QFN package
• Essence: Provides backlighting for LCD displays
• Packaging/Quantity: Tape and reel, 2500 units per reel

Specifications

• Input Voltage Range: 2.7V to 5.5V
• Output Current Range: Up to 30mA per channel
• Number of Channels: 4
• Dimming Control: PWM (Pulse Width Modulation)
• Operating Temperature Range: -40°C to +85°C
• Package Dimensions: 3mm x 3mm x 0.8mm

Pin Configuration

The LP8550TLX/NOPB has a total of 20 pins. The pin configuration is as follows:

1. VCC
2. GND
3. EN
4. DIM
5. NC
6. NC
7. NC
8. NC
9. NC
10. NC
11. NC
12. NC
13. NC
14. NC
15. NC
16. NC
17. NC
18. NC
19. NC
20. NC

Functional Features

• High efficiency LED driver with adjustable brightness levels
• Supports up to 4 channels for individual control of LED backlighting
• Wide input voltage range allows for versatile applications
• PWM dimming control enables precise brightness adjustment
• Compact size and thin package make it suitable for space-constrained designs

Advantages and Disadvantages

Advantages

• High efficiency results in lower power consumption
• Adjustable brightness levels provide flexibility for different lighting conditions
• Compact size allows for integration into small form factor devices
• PWM dimming control enables smooth and flicker-free brightness adjustment

Disadvantages

• Limited to 4 channels, may not be suitable for applications requiring more channels
• Requires external components for proper operation
• Operating temperature range may limit usage in extreme environments

Working Principles

The LP8550TLX/NOPB is a LED driver IC designed to provide backlighting for LCD displays. It operates by converting the input voltage into a regulated current that drives the LEDs. The brightness of the LEDs can be adjusted using PWM dimming control, which modulates the duty cycle of the LED driver. This allows for precise control of the brightness levels.

Detailed Application Field Plans

The LP8550TLX/NOPB LED driver IC finds applications in various fields, including:

1. Mobile devices: Provides backlighting for smartphone and tablet displays.
2. Automotive: Used for instrument panel backlighting and interior lighting.
3. Industrial equipment: Enables backlighting for control panels and displays.
4. Consumer electronics: Suitable for LCD TVs, monitors, and gaming consoles.
5. Medical devices: Used for backlighting in medical equipment displays.

Detailed and Complete Alternative Models

1. LP8551TLX/NOPB: Similar to LP8550TLX/NOPB but with 8 channels instead of 4.
2. LP8552TLX/NOPB: LED driver IC with integrated boost converter for higher voltage applications.
3. LP8553TLX/NOPB: LED driver IC with additional features such as fault detection and protection.

These alternative models offer similar functionality to the LP8550TLX/NOPB but with different specifications and features.

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