LM3630ATME

Product Overview

Category: Integrated Circuit (IC)

Use: The LM3630ATME is a versatile LED driver IC designed for backlighting applications in various electronic devices, such as smartphones, tablets, and LCD monitors.

Characteristics: - Efficient LED driver with adjustable current output - Wide input voltage range for compatibility with different power sources - Dimming control for brightness adjustment - Over-temperature protection to prevent damage - Low standby current consumption for energy efficiency

Package: The LM3630ATME is available in a small outline package (SOP) with 16 pins, making it suitable for compact electronic devices.

Essence: This IC serves as a crucial component in the backlighting system of electronic devices, ensuring optimal brightness and power efficiency.

Packaging/Quantity: The LM3630ATME is typically sold in reels or tubes containing a specified quantity of ICs, depending on the manufacturer's packaging standards.

Specifications

• Input Voltage Range: 2.7V to 5.5V
• Output Current Range: 10mA to 30mA
• Dimming Control: PWM (Pulse Width Modulation)
• Operating Temperature Range: -40°C to +85°C
• Standby Current: <1µA

Pin Configuration

The LM3630ATME features 16 pins, each serving a specific function:

1. VCC: Power supply voltage input
2. GND: Ground reference
3. EN: Enable pin for turning the IC on/off
4. DIM: Dimming control input for adjusting brightness
5. FB: Feedback pin for current regulation
6. VIN: Input voltage supply
7. SW: Switch pin for LED current control
8. LX: Inductor connection pin
9. NC: No connection
10. NC: No connection
11. NC: No connection
12. NC: No connection
13. NC: No connection
14. NC: No connection
15. NC: No connection
16. NC: No connection

Functional Features

• Adjustable LED current output for precise brightness control
• PWM dimming control allows smooth and flicker-free brightness adjustment
• Over-temperature protection ensures the IC's longevity and reliability
• Low standby current consumption minimizes power wastage during idle periods

Advantages and Disadvantages

Advantages: - High efficiency in driving LEDs, resulting in energy savings - Wide input voltage range enables compatibility with various power sources - Compact package size facilitates integration into small electronic devices - Dimming control provides flexibility in adjusting brightness levels

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

Working Principles

The LM3630ATME operates by converting the input voltage to a regulated current output for driving LEDs. It utilizes pulse width modulation (PWM) to control the LED brightness. The feedback pin (FB) monitors the LED current and adjusts it accordingly. The IC also incorporates over-temperature protection to prevent damage due to excessive heat.

Detailed Application Field Plans

The LM3630ATME is widely used in various electronic devices that require backlighting, including: - Smartphones and tablets - LCD monitors and TVs - Portable gaming consoles - Automotive displays - Industrial control panels

Alternative Models

1. LM3630A: Similar to LM3630ATME but without the SOP package option.
2. LM3631: LED driver IC with additional features like integrated boost converter and I2C interface.
3. LM3695: High-power LED driver IC suitable for applications requiring higher output currents.

These alternative models offer different features and specifications, allowing designers to choose the most suitable option for their specific requirements.

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