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Product Detailed Parameters
- Description：65V, 1A BOOST OR BUCK-BOOST LED
- Series：*
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：-
- Topology：-
- Internal Switch(s)：-
- Number of Outputs：-
- Voltage - Supply (Min)：-
- Voltage - Supply (Max)：-
- Voltage - Output：-
- Current - Output / Channel：-
- Frequency：-
- Dimming：-
- Applications：-
- Operating Temperature：-
- Mounting Type：-
- Package / Case：-
- Supplier Device Package：-
- Grade：-
- Qualification：-
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Overview
The TPS923650D1DRLR is a single-channel LED driver IC from Texas Instruments, designed for boost and buck-boost topologies. It supports an input voltage range of 4.5 V to 65 V and delivers up to 1 A output current. The device operates at switching frequencies of 400 kHz or 1 MHz and features a maximum output voltage of 65 V. Packaged in an SOT-583-8 (SOT-563) format, it functions within a temperature range of -40°C to +85°C.
Feature Summary
- Supports both boost and buck-boost converter topologies for flexible LED string configurations
- Integrates a non-synchronous buck architecture for efficient power regulation
- Enables analog dimming control for precise brightness adjustment
Applications
- Indoor lighting systems
- Outdoor lighting applications
- LCD backlighting
Procurement Notes
Verify the specific suffix 'D1' against the official datasheet to confirm pinout and functional variations. Ensure the SOT-583-8 package matches your PCB footprint requirements. Confirm that the 400 kHz or 1 MHz frequency option aligns with your electromagnetic interference constraints and inductor selection criteria before finalizing procurement.
Selection Notes
Select this component when designing circuits requiring high input voltage tolerance up to 65 V. It is suitable for applications needing a single-channel solution with integrated switching capabilities. Consider the thermal performance of the SOT-583-8 package relative to your expected 1 A load. Verify compatibility with your desired operating frequency to optimize external component size.
Part Context
This part belongs to the TPS923650 series of LED drivers. It is distinct from synchronous variants like the TPS923611, which offers higher current but lower voltage tolerance. The D1 suffix indicates a specific revision or variant within the standard TPS923650 family, differentiated by internal configuration or packaging details defined in the manufacturer's documentation.
Replacement Considerations
The TPS923650DRLR is a related variant within the same series. Evaluate differences in suffix codes carefully, as they may indicate changes in tape-and-reel specifications or minor electrical parameter adjustments without altering the core functionality.
