TPS61185RGET

Overview

The TPS61185RGET is an LED lighting driver IC designed for notebook applications, featuring a boost topology with an integrated MOSFET. It provides eight independent output channels capable of driving white LEDs, supporting a maximum output current of 2 A per channel and a peak output voltage of 38 V. The device operates from a supply voltage range of 4.2 V to 24 V and supports switching frequencies between 600 kHz and 2 MHz. It utilizes PWM dimming control and functions within an operating temperature range of -40°C to +85°C, housed in a 24-VQFN package.

Feature Summary

• Integrates an internal power switch and eight independent LED drive channels for high-density backlighting solutions.
• Supports precise brightness control through a dedicated PWM dimming interface compatible with standard controller signals.
• Features adjustable switching frequency to optimize external component size and system efficiency across various load conditions.

Applications

• White LED backlight drivers for notebook computers
• High-brightness LCD panel illumination systems
• Portable electronic devices requiring multi-channel LED regulation

Procurement Notes

Verify the specific suffix 'RGET' corresponds to the tape-and-reel packaging configuration required for automated assembly processes. Confirm that the 24-VQFN footprint matches the target PCB design guidelines. Ensure input voltage levels remain within the specified 4.2 V to 24 V range to prevent device malfunction or damage during operation.

Selection Notes

Select this component when designing systems requiring eight synchronized LED channels with high current capability. Consider the thermal performance of the exposed pad VQFN package for heat dissipation requirements. Evaluate the need for PWM dimming resolution against the available control interface options provided by the host processor.

Part Context

This part belongs to the TPS61185 series of WLED drivers optimized for portable computing devices. It complements other variants in the family that may offer different channel counts or current ratings. The series addresses the demand for efficient, compact power management solutions in thin and light notebook architectures.

Replacement Considerations

TPS61185RGER serves as a functional equivalent within the same series, differing primarily in packaging format rather than electrical characteristics.

FAQ

What is the maximum output voltage supported by the TPS61185RGET?

The device supports a maximum output voltage of 38 V, suitable for driving series-connected LED strings.

Does the TPS61185RGET include an internal power switch?

Yes, the IC integrates an internal MOSFET, eliminating the need for an external power switch component.