LM3642TLX/NOPB

Product Overview

The LM3642TLX/NOPB belongs to the category of LED drivers and controllers. It is commonly used for controlling the brightness of LED backlights in LCD displays, particularly in portable electronic devices such as smartphones, tablets, and laptops. The LM3642TLX/NOPB is known for its high efficiency, compact package, and versatile features. It is available in a small package size, making it suitable for space-constrained applications. The essence of this product lies in its ability to efficiently control LED backlighting while minimizing power consumption. The LM3642TLX/NOPB is typically packaged in a small outline package (SOP) and is available in various quantities to meet different production needs.

Specifications

• Input Voltage Range: 2.7V to 5.5V
• Number of Channels: 1
• Maximum Output Current: 30mA
• Dimming Control: PWM
• Package Type: Small Outline Package (SOP)
• Operating Temperature Range: -40°C to 85°C

Detailed Pin Configuration

The LM3642TLX/NOPB features a standard pin configuration with the following key pins: 1. VIN: Input voltage 2. GND: Ground 3. EN: Enable pin 4. DIM: Dimming control input 5. FB: Feedback pin 6. SW: Switch node

Functional Features

• High efficiency LED backlight control
• Wide input voltage range for versatile applications
• PWM dimming control for precise brightness adjustment
• Compact package for space-constrained designs
• Overvoltage and overcurrent protection

Advantages and Disadvantages

Advantages

• High efficiency operation
• Versatile input voltage range
• Precise dimming control
• Compact package size

Disadvantages

• Limited maximum output current
• Restricted operating temperature range

Working Principles

The LM3642TLX/NOPB operates by converting the input voltage to a controlled output current for driving LED backlights. It utilizes pulse-width modulation (PWM) to adjust the brightness of the LEDs, thereby achieving efficient control while minimizing power consumption. The device also incorporates protection features to ensure safe and reliable operation.

Detailed Application Field Plans

The LM3642TLX/NOPB is well-suited for a wide range of portable electronic devices that require LED backlighting, including but not limited to: - Smartphones - Tablets - Laptops - Portable gaming devices - Portable media players

Detailed and Complete Alternative Models

Some alternative models to the LM3642TLX/NOPB include: - LM3630 - LM3631 - LM3632 - LM3658

In summary, the LM3642TLX/NOPB is a highly efficient LED driver and controller designed for portable electronic devices, offering precise dimming control and a compact package size. While it has limitations in terms of maximum output current and operating temperature range, its versatile features make it an ideal choice for various applications requiring LED backlighting.

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