TPS61177RGRR

Overview

The TPS61177RGRR is a WLED driver IC designed for notebook and tablet displays, housed in a 20-pin VQFN (RGR) package. It operates within an input voltage range of 2.7 V to 6.5 V and supports output currents up to 30 mA. The device features mixed-mode dimming capabilities and functions at a switching frequency of 1 MHz. It delivers a maximum output voltage of 38 V and includes integrated MOSFETs. The component is rated for operation between -40°C and +85°C.

Feature Summary

• Supports mixed-mode dimming for display brightness control
• Integrates boost converter with internal MOSFETs
• Designed specifically for white LED backlighting applications

Applications

• Notebook display backlighting
• Tablet display backlighting
• White LED driver circuits

Procurement Notes

Verify the specific ordering suffix RGR to confirm the 20-pin VQFN package configuration. Ensure compatibility with the required thermal management solutions for the specified operating temperature range. Confirm that the mixed-mode dimming interface aligns with the host system's control signals before procurement.

Selection Notes

Select this component when designing for notebook or tablet displays requiring dedicated WLED driving. Consider the 30 mA output current limit and 38 V maximum voltage against the target LED string requirements. Evaluate the need for mixed-mode dimming versus simpler PWM-only alternatives based on system complexity.

Part Context

This part belongs to the Texas Instruments LED Lighting Driver ICs category. It is distinct from the TPS61176 series, which offers six channels. The TPS61177RGRR is optimized for portable computing devices, providing a compact solution for display backlighting with integrated power stages.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify pinout and electrical specifications carefully if considering alternative drivers from other manufacturers.