LM3530TME-40/NOPB

Product Overview

Category

The LM3530TME-40/NOPB belongs to the category of integrated circuits (ICs) and specifically falls under the LED lighting driver ICs.

Use

This product is primarily used as a backlight LED driver for small to medium-sized liquid crystal displays (LCDs) in various electronic devices such as smartphones, tablets, and portable gaming consoles.

Characteristics

• Efficiency: The LM3530TME-40/NOPB is known for its high efficiency in driving LED backlights, contributing to longer battery life in portable devices.
• Dimming Control: It offers precise dimming control, allowing for adjustable brightness levels.
• Integrated Functions: The IC integrates multiple functions including LED current control, PWM dimming, and thermal shutdown protection.

Package

The LM3530TME-40/NOPB is available in a small outline package (SOP) with a specified pin configuration.

Packaging/Quantity

It is typically supplied in tape and reel packaging, with quantities varying based on customer requirements.

Specifications

• Input Voltage Range: 2.7V to 5.5V
• Output Current: Up to 30mA
• Dimming Control: PWM dimming with a duty cycle range of 0% to 100%
• Operating Temperature Range: -40°C to 85°C
• Package Type: Small Outline Package (SOP)

Detailed Pin Configuration

The LM3530TME-40/NOPB features a standard SOP package with 8 pins. The pin configuration is as follows: 1. VIN (Input Voltage) 2. GND (Ground) 3. ISET (LED Current Set) 4. PWM (Dimming Control) 5. EN (Enable) 6. NC (No Connection) 7. LED (LED Anode) 8. LED (LED Cathode)

Functional Features

• LED Current Control: The IC provides precise control over the LED current, ensuring consistent brightness levels.
• PWM Dimming: It supports pulse-width modulation (PWM) dimming, enabling smooth and flicker-free adjustments to the backlight brightness.
• Thermal Shutdown Protection: Incorporates built-in thermal shutdown protection to prevent damage due to excessive heat.

Advantages and Disadvantages

Advantages

• High efficiency in driving LED backlights
• Precise dimming control for customizable brightness levels
• Integrated functions reduce external component count

Disadvantages

• Limited output current may not be suitable for larger displays or high-power LEDs
• Operating temperature range may not be ideal for extreme environmental conditions

Working Principles

The LM3530TME-40/NOPB operates by regulating the LED current based on the input voltage and dimming control signals. When enabled, it modulates the LED current according to the PWM input, resulting in the desired brightness level for the LCD backlight.

Detailed Application Field Plans

The LM3530TME-40/NOPB is well-suited for integration into various consumer electronic devices, including but not limited to: - Smartphones - Tablets - Portable gaming consoles - Handheld GPS devices

Detailed and Complete Alternative Models

Some alternative models to the LM3530TME-40/NOPB include: - LM3530TMX-40/NOPB - LM3530TME-40/NOPB - LM3530TMX-41/NOPB - LM3530TME-41/NOPB

In summary, the LM3530TME-40/NOPB is a highly efficient LED backlight driver IC with precise dimming control, making it an ideal choice for small to medium-sized LCD displays in various consumer electronic devices.

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