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Product Detailed Parameters
- Description：65V 2A BOOST OR BUCK-BOOST LED D
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：DC DC Regulator
- Topology：Step-Down (Buck), Step-Up (Boost)
- Internal Switch(s)：Yes
- Number of Outputs：1
- Voltage - Supply (Min)：4.5V
- Voltage - Supply (Max)：65V
- Voltage - Output：0V ~ 63V
- Current - Output / Channel：2A
- Frequency：400kHz
- Dimming：Analog, PWM
- Applications：General Purpose
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：8-WFDFN Exposed Pad
- Supplier Device Package：8-WSON (2x2)
- Grade：-
- Qualification：-
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Overview
The TPS923651D2DSGR is a single-output LED lighting driver IC from Texas Instruments, designed for boost and buck-boost topologies. It supports an input voltage range of 4.5 V to 63 V and delivers up to 2 A output current. The device operates at a fixed switching frequency of 400 kHz and provides an adjustable output voltage between 5.5 V and 65 V. Packaged in an 8-pin WSON (DSGR) 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 analog and PWM dimming control capabilities for brightness adjustment
- Operates with a fixed 400 kHz switching frequency to optimize external component size
Applications
- Indoor general lighting fixtures
- Outdoor street and area lighting systems
- LCD backlight power supplies
Procurement Notes
Verify the specific suffix D2 against the official Texas Instruments datasheet to confirm pinout and thermal pad configuration. Ensure the WSON-8 package matches the PCB footprint requirements. Confirm RoHS compliance status through the manufacturer's latest documentation before finalizing procurement specifications.
Selection Notes
Select this component when a 2 A drive current is required for high-voltage LED strings. The integrated boost/buck-boost capability allows operation across varying input voltages without topology changes. Consider the 400 kHz frequency for balancing efficiency and passive component volume compared to lower-frequency alternatives.
Part Context
This part belongs to the TPS92365x family of LED drivers. It shares functional similarities with the TPS923650 but offers higher current capacity. Evaluation modules such as the TPS923650D2DGNREVM are available for testing these devices in common lighting applications.
Replacement Considerations
The TPS923651D2DSGR may be substituted with other members of the TPS92365x series, provided the current rating and package compatibility are verified. Cross-referencing with the TPS923650 or TPS923653 requires checking specific electrical parameter differences.
