LP8553TLE/NOPB

LED Driver IC Overview

The LP8553TLE/NOPB is a high-efficiency LED backlight driver IC from Texas Instruments, designed for portable applications. It features six independent output channels capable of driving up to 100mA per channel. The device operates with an input voltage range of 2.7V to 22V and supports adjustable switching frequencies up to 400kHz. It integrates I2C control for configuration and PWM dimming for brightness adjustment. The component is housed in a DSBGA-25 package and functions within a temperature range of -40°C to +85°C.

LED Driver IC Feature Summary

• Six independent high-current output channels for multi-zone LED backlighting
• Integrated I2C interface for digital control and configuration
• Supports PWM dimming for precise brightness regulation
• Adjustable switching frequency to optimize efficiency and EMI

LED Driver IC Applications

• Portable electronic device displays
• Mobile phone backlight systems
• Tablet computer LCD illumination
• Handheld gaming consoles

LED Driver IC Procurement Notes

Verify the specific suffix against the official datasheet to ensure correct packaging and tape/reel specifications. Confirm that the ordering part number matches the required pinout and thermal characteristics. Cross-reference the manufacturer's latest documentation for any design-in notes or application circuit recommendations prior to finalizing procurement.

LED Driver IC Selection Notes

Select this component when a compact solution with multiple independent LED channels is required. Ensure the system input voltage falls within the 2.7V to 22V operational range. Verify that the PCB layout can accommodate the DSBGA-25 package dimensions and that the thermal management strategy aligns with the device's power dissipation limits under maximum load conditions.

LED Driver IC Part Context

This device belongs to the LP855x family of LED drivers from Texas Instruments, which are optimized for portable electronics. The LP8553 variant specifically provides six channels, distinguishing it from lower-channel counterparts like the LP8550 or higher-voltage variants in the series. It serves as a dedicated solution for managing complex backlight arrays in space-constrained mobile devices.

LED Driver IC FAQ

What is the maximum current per output channel?

Each of the six output channels can drive up to 100mA.

Does the LP8553TLE/NOPB support analog dimming?

No, the device primarily supports PWM dimming for brightness control via its integrated controller.