Product Overview: LM2795TLX/NOPB - Texas Instruments

The LM2795TLX/NOPB is a high-performance charge pump and LED driver from the reputable manufacturer Texas Instruments. This device is designed to provide a regulated current to white LEDs, which are commonly used for backlighting in small-sized LCD displays. Its application areas range from mobile phones to portable media players, offering an efficient solution for display lighting.

Key Features

• Charge Pump Technology: The LM2795TLX/NOPB utilizes a 1x/1.5x/2x charge pump to efficiently regulate the power supplied to the LEDs, ensuring consistent brightness and maximizing battery life.
• High Efficiency: This device is designed for high efficiency, which is crucial for battery-powered applications. It helps in prolonging the device's operational time between charges.
• Adjustable Output Current: It provides an adjustable output current that can be set via an external resistor, giving designers flexibility in controlling the brightness of the LEDs.
• Small Footprint: The LM2795TLX/NOPB comes in a compact, leadless package that is ideal for space-constrained applications.
• Thermal Shutdown Protection: The built-in thermal shutdown protection feature ensures the device operates within safe temperature limits, preventing damage due to overheating.

Specifications

With an input voltage range of 2.7V to 5.5V, the LM2795TLX/NOPB is versatile and can be used in a variety of power environments. Its output current can be programmed up to 30mA per LED, and it can drive up to three white LEDs in series, making it suitable for most small-to-medium sized displays.

Applications

• Mobile phones
• Portable media players
• Personal digital assistants (PDAs)
• Other handheld devices

The LM2795TLX/NOPB is available in a 14-pin leadless package (TLX), which is RoHS compliant and designated by the NOPB (No Lead (Pb)) suffix, indicating it is manufactured with environmentally friendly processes.

Conclusion

Overall, the LM2795TLX/NOPB from Texas Instruments is a reliable and efficient solution for driving white LEDs in portable applications. Its combination of high efficiency, adjustable output current, and small form factor, along with protective features, make it a go-to choice for designers looking to enhance the visual experience of small LCD displays while maintaining power efficiency.