TPS61151DRCR

Overview

The TPS61151DRCR is a dual-output boost white LED driver IC from Texas Instruments, designed for backlight applications. It operates with an input voltage range of 2.5 V to 6 V and delivers up to 700 mA output current per channel. The device features a fixed switching frequency of 1.2 MHz and supports PWM dimming. It utilizes a single inductor topology to drive two independent LED strings, achieving output voltages up to 27 V. Packaged in a compact VSON-10 (3x3 mm) surface-mount case, it integrates the power switch and control logic for efficient space-constrained designs.

Feature Summary

• Dual-channel architecture enabling independent control of two LED strings using a single inductor
• Integrated high-efficiency power switch eliminates external component count
• Supports wide-range PWM dimming for precise brightness control

Applications

• Mobile phone LCD backlights
• Tablet display illumination
• Portable electronic device lighting

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to ensure correct package type and tape/reel specifications. Confirm that the selected variant matches the required thermal performance and humidity sensitivity class for your assembly process. Cross-reference the datasheet revision history to validate pin compatibility and electrical characteristics before finalizing procurement orders.

Selection Notes

Select this component when designing systems requiring dual LED string independence within a limited board area. The 1.2 MHz switching frequency allows for smaller passive components compared to lower-frequency alternatives. Ensure the application input voltage remains within the 2.5 V to 6 V range and that the total LED forward voltage does not exceed the 27 V maximum output capability.

Part Context

This part belongs to the TPS6115x series of dual-output boost converters specifically engineered for WLED backlighting. It shares functional similarities with the TPS61150 but offers distinct configuration options. The DRCR suffix indicates a specific reel-based packaging format suitable for automated surface-mount assembly lines.

Replacement Considerations

The TPS61150DRCR is a related variant within the same family. Verify if the alternative part number meets the exact electrical requirements and pinout compatibility before substitution.