SSL2109T/1,118

Product Overview

Category: Integrated Circuit (IC)

Use: SSL2109T/1,118 is a versatile integrated circuit primarily used for driving high-power LEDs in various lighting applications.

Characteristics: - High efficiency and low power dissipation - Wide input voltage range - Adjustable output current - Dimming control options - Thermal protection - Overvoltage protection

Package: The SSL2109T/1,118 comes in a compact surface-mount package, making it suitable for space-constrained designs.

Essence: This IC serves as a crucial component in LED lighting systems, enabling efficient and reliable operation of high-power LEDs.

Packaging/Quantity: The SSL2109T/1,118 is typically available in reels or tubes, with varying quantities depending on the supplier.

Specifications

• Input Voltage Range: 8V to 40V
• Output Current Range: Up to 2A
• Dimming Control: Analog/PWM
• Operating Temperature Range: -40°C to +125°C
• Package Type: SOT-26

Detailed Pin Configuration

The SSL2109T/1,118 features a standard SOT-26 package with the following pin configuration:

1. VIN (Input Voltage)
2. GND (Ground)
3. VCC (Supply Voltage)
4. DIM (Dimming Control)
5. FB (Feedback)
6. SW (Switch Node)
7. CS (Current Sense)

Functional Features

• High Efficiency: The SSL2109T/1,118 incorporates advanced switching techniques, resulting in high power conversion efficiency.
• Flexible Dimming Control: It supports both analog and pulse-width modulation (PWM) dimming methods, allowing precise control over LED brightness.
• Thermal and Overvoltage Protection: The IC includes built-in protection mechanisms to safeguard the LED and the driver circuitry from excessive heat and voltage spikes.
• Wide Input Voltage Range: The SSL2109T/1,118 can operate within a wide range of input voltages, making it suitable for various lighting applications.

Advantages and Disadvantages

Advantages: - High efficiency leads to energy savings - Flexible dimming control options - Robust thermal and overvoltage protection - Wide input voltage range enhances versatility

Disadvantages: - Limited output current capacity (up to 2A) - Requires external components for complete LED driver implementation

Working Principles

The SSL2109T/1,118 operates as a buck converter, converting the higher input voltage to a lower regulated voltage required by the LED. It utilizes pulse-width modulation (PWM) techniques to control the LED brightness. The IC continuously monitors the feedback signal to adjust the duty cycle of the PWM signal, ensuring a constant output current to the LED.

Detailed Application Field Plans

The SSL2109T/1,118 finds extensive application in various lighting systems, including: - Residential and commercial lighting - Automotive lighting - Industrial lighting - Outdoor and street lighting - Signage and display lighting

Detailed and Complete Alternative Models

• SSL2109T/1,119: Similar to SSL2109T/1,118 with enhanced output current capability (up to 3A).
• SSL2110T/1,118: A related IC with integrated power factor correction (PFC) functionality.
• SSL2108T/1,118: Suitable for lower-power LED applications with a maximum output current of 1A.

Note: This is not an exhaustive list of alternative models; further research is recommended.

In conclusion, the SSL2109T/1,118 is a highly efficient and versatile IC designed for driving high-power LEDs in various lighting applications. Its flexible dimming control, thermal protection, and wide input voltage range make it a popular choice among lighting designers. However, its limited output current capacity and the need for external components are notable considerations.