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Product Detailed Parameters
- Description：65-V, 4-A BOOST OR BUCK-BOOST LE
- 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：4A
- Frequency：100kHz ~ 2.2MHz
- Dimming：Analog, PWM
- Applications：Backlight, Lighting
- Operating Temperature：-55°C ~ 125°C (TJ)
- Mounting Type：Surface Mount, Wettable Flank
- Package / Case：14-VDFN Exposed Pad
- Supplier Device Package：14-VSON (4.5x3)
- Grade：-
- Qualification：-
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Overview
The TPS923654MDMTR is a non-synchronous boost or buck-boost LED driver IC from Texas Instruments, housed in a VSON-14 package. It supports an input voltage range of 4.5 V to 65 V and delivers up to 4 A output current. The device operates at a programmable switching frequency between 100 kHz and 2.2 MHz, with an output voltage capability of 0 V to 63 V. It functions within a temperature range of -55°C to +125°C and includes features such as cycle-by-cycle over-current protection, thermal foldback, and fault output.
Feature Summary
- Integrates a high-side switching FET for compact design
- Supports analog, PWM, hybrid, and flexible dimming methods
- Provides open and short LED detection for system safety
- Includes thermal shutdown and foldback for thermal management
Applications
- Automotive exterior lighting systems
- High-power LED general illumination
- Industrial lighting fixtures
- Portable high-brightness LED applications
Procurement Notes
Verify the specific suffix MDMT against official datasheets to confirm package type and reel quantity. Ensure compatibility with your PCB footprint for the VSON-14 package. Confirm RoHS compliance status through the manufacturer's latest documentation before finalizing procurement orders.
Selection Notes
Select this component when a single-channel solution for boost or buck-boost topologies is required. It is suitable for designs needing wide input voltage ranges and high output currents. Consider the integrated FET and protection features to reduce external component count and simplify thermal design in space-constrained applications.
Part Context
This part belongs to the TPS923654 series of LED drivers designed for robust performance in demanding environments. It complements other Texas Instruments power management solutions by offering integrated control and protection for high-power LED strings without requiring external switches.
Replacement Considerations
Check the TPS923655HMDMTR for similar specifications within the same family. Verify pinout compatibility and electrical parameters against official substitution guides before replacing.
