LP8551TLX/NOPB

Product Overview

• Category: Integrated Circuit (IC)
• Use: LED Driver
• Characteristics:
  • High efficiency
  • Wide input voltage range
  • Dimming control
• Package: Thin Shrink Small Outline Package (TSSOP)
• Essence: This product is a high-efficiency LED driver IC designed for various lighting applications.
• Packaging/Quantity: Available in tape and reel packaging with 2500 units per reel.

Specifications

• Input Voltage Range: 4.5V to 65V
• Output Current Range: Up to 1.2A
• Operating Temperature Range: -40°C to +125°C
• Dimming Control: PWM (Pulse Width Modulation) or analog dimming
• Protection Features:
  • Overvoltage protection
  • Overcurrent protection
  • Overtemperature protection

Pin Configuration

The LP8551TLX/NOPB has a total of 20 pins. The pin configuration is as follows:

1. VCC
2. GND
3. EN
4. DIM
5. FB
6. ISET
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 conversion of input voltage to drive LEDs
• Flexible dimming control options for brightness adjustment
• Built-in protection features ensure safe operation
• Wide input voltage range allows for versatile applications

Advantages and Disadvantages

Advantages: - High efficiency results in energy savings - Wide input voltage range enables compatibility with various power sources - Dimming control allows for customization of lighting levels - Built-in protection features enhance reliability and safety

Disadvantages: - Limited number of pins may restrict the number of LEDs that can be driven simultaneously - Requires external components for proper operation

Working Principles

The LP8551TLX/NOPB LED driver IC operates by converting the input voltage to a suitable level for driving LEDs. It utilizes a high-efficiency conversion mechanism to minimize power losses. The dimming control feature allows for adjusting the brightness of the LEDs using either PWM or analog dimming methods. The built-in protection features ensure safe operation by monitoring and limiting the output current, voltage, and temperature.

Detailed Application Field Plans

The LP8551TLX/NOPB LED driver IC finds applications in various lighting systems, including:

1. Automotive lighting: Used in headlights, taillights, and interior lighting.
2. Display backlighting: Suitable for LCD displays in televisions, monitors, and smartphones.
3. General lighting: Can be used in residential, commercial, and industrial lighting fixtures.
4. Signage and advertising: Enables efficient illumination of signs and billboards.

Detailed and Complete Alternative Models

1. LP8550TLX/NOPB: Similar to LP8551TLX/NOPB but with a lower output current range.
2. LP8552TLX/NOPB: Higher output current range compared to LP8551TLX/NOPB.
3. LP8553TLX/NOPB: Offers additional features such as fault detection and reporting.

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