TPS923651D1DSGR

Overview

The TPS923651D1DSGR is a single-channel LED lighting driver IC from Texas Instruments, designed for boost and buck-boost topologies. It delivers an output current of 2 A with a maximum supply voltage of 63 V and operates within an input range of 4.5 V to 63 V. The device supports a switching frequency of 400 kHz and provides an output voltage range of 5.5 V to 65 V. It is housed in a WSON-8 package and functions reliably across a temperature range of -40°C to +85°C.

Feature Summary

• Integrates a high-side N-channel power switch for compact design
• Supports flexible dimming via analog, PWM, or hybrid control methods
• Includes comprehensive protection features such as thermal shutdown and over-current protection

Applications

• General indoor and outdoor LED lighting systems
• LCD backlight drivers
• Automotive interior lighting applications

Procurement Notes

Verify the specific suffix D1DSGR against the manufacturer datasheet to confirm pinout and electrical characteristics match your schematic requirements. Ensure the WSON-8 footprint aligns with your PCB layout guidelines. Confirm RoHS compliance status if required by your manufacturing standards before finalizing procurement orders.

Selection Notes

Select this component when a 2 A constant current drive is required for boost or buck-boost LED configurations. It is suitable for designs needing a compact WSON-8 solution with integrated switching FETs. Consider the 400 kHz fixed frequency for EMI management and external component sizing compared to variable frequency alternatives.

Part Context

This part belongs to the TPS92365x family of non-synchronous boost/buck-boost LED drivers. It shares functional similarities with the TPS923650 and TPS923653 but differs in output current capacity and package type. The series is optimized for cost-effective, high-reliability LED illumination solutions requiring simple external component counts.

Replacement Considerations

The TPS923650D1DRLR offers similar functionality but provides only 1 A output current and uses an SOT-583-8 package. The TPS923653DRRR provides 2 A output but utilizes a WSON-12 package and supports a wider frequency range. Verify pin compatibility and thermal performance when substituting.