LP8556SQ-E08/NOPB

Product Overview

• Category: Integrated Circuit (IC)
• Use: LED Driver
• Characteristics:
  • High efficiency
  • Wide input voltage range
  • Dimming control
  • Overvoltage protection
• Package: QFN (Quad Flat No-Lead)
• Essence: This IC is designed to drive LEDs in various applications, providing efficient and reliable lighting solutions.
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Input Voltage Range: 4.5V to 40V
• Output Current Range: Up to 1.2A
• Dimming Control: PWM (Pulse Width Modulation)
• Operating Temperature Range: -40°C to +85°C
• Protection Features:
  • Overvoltage Protection
  • Thermal Shutdown
  • Short-Circuit Protection

Pin Configuration

The LP8556SQ-E08/NOPB IC has the following pin configuration:

1. VCC
2. GND
3. EN (Enable)
4. DIM (Dimming Control)
5. FB (Feedback)
6. VIN (Input Voltage)
7. SW (Switch Node)
8. LX (Inductor Connection)

Functional Features

• Efficient LED driving with high power conversion efficiency
• Wide input voltage range allows for versatile applications
• Dimming control enables brightness adjustment
• Overvoltage protection ensures safe operation
• Thermal shutdown protects against overheating
• Short-circuit protection prevents damage to the IC

Advantages and Disadvantages

Advantages: - High efficiency results in energy savings - Wide input voltage range accommodates different power sources - Dimming control allows for customized lighting levels - Overvoltage protection ensures the longevity of the IC - Thermal shutdown prevents overheating and damage - Short-circuit protection safeguards the IC and connected LEDs

Disadvantages: - Limited output current range may not be suitable for high-power LED applications - Requires external components for proper operation

Working Principles

The LP8556SQ-E08/NOPB LED driver IC operates by converting the input voltage to a regulated current that drives the connected LEDs. The dimming control feature adjusts the duty cycle of the PWM signal, thereby controlling the brightness of the LEDs. The IC incorporates various protection mechanisms such as overvoltage protection, thermal shutdown, and short-circuit protection to ensure safe and reliable operation.

Application Field Plans

The LP8556SQ-E08/NOPB LED driver IC finds applications in various fields, including:

1. Automotive lighting systems
2. Backlighting for LCD displays
3. General lighting applications
4. Portable devices with LED indicators
5. Signage and advertising displays

Alternative Models

Here are some alternative models that can be considered as alternatives to the LP8556SQ-E08/NOPB:

1. LP8555SQ-E08/NOPB
2. LP8557SQ-E08/NOPB
3. LP8558SQ-E08/NOPB
4. LP8559SQ-E08/NOPB

These models offer similar functionality and characteristics, providing flexibility in choosing the most suitable LED driver IC for specific applications.

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