LM27965SQ-MX/NOPB

Overview

The LM27965SQ-MX/NOPB is a dual display white LED driver IC manufactured by Texas Instruments. It features an integrated charge pump topology with nine constant current outputs, each capable of delivering up to 180 mA. The device operates on a supply voltage range of 2.7 V to 5.5 V and supports I2C control for dimming regulation. It functions within a switching frequency range of 890 kHz to 1.57 MHz, with output voltages adjustable between 2 V and 4 V. The component is housed in a 24-WQFN package and is designed for applications requiring precise LED current regulation.

Feature Summary

• Integrates a charge pump DC-DC converter to drive multiple white LEDs efficiently.
• Provides independent constant current regulation for up to nine output channels.
• Supports digital control via I2C interface for programmable dimming and configuration.

Applications

• Dual display backlight systems
• White LED lighting drivers
• Portable electronic devices requiring multi-channel LED regulation

Procurement Notes

Verify the specific suffix MX against the manufacturer's official datasheet to confirm package type and tape/reel specifications. Ensure the ordering part number matches the exact electrical characteristics required for the design. Cross-reference the RoHS status and lead-free compliance details directly from the product documentation before procurement.

Selection Notes

Select this component when designing circuits that require high-density LED driving with digital control capabilities. The I2C interface allows for simplified system architecture by reducing GPIO usage. Consider the thermal performance of the WQFN package and the input voltage range compatibility with the system power rail during the selection process.

Part Context

This part belongs to the LM27965 series of LED drivers from Texas Instruments. The series is characterized by its ability to drive multiple white LEDs using a charge pump architecture. The SQ/MX suffix variants typically denote specific packaging options such as cut tape or reel configurations, intended for surface-mount assembly processes.

Replacement Considerations

Consult the official replacement matrix for direct substitutes. Verify pin-to-pin compatibility and electrical parameter equivalence if considering alternative manufacturers. Ensure any substitute maintains the same I2C communication protocol and output current capabilities.