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Product Detailed Parameters
- Description：65-V, 4-A BUCK LED DRIVER WITH I
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：DC DC Regulator
- Topology：Step-Down (Buck)
- Internal Switch(s)：Yes
- Number of Outputs：1
- Voltage - Supply (Min)：4.5V
- Voltage - Supply (Max)：63V
- 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 TPS922054MDMTR is a non-synchronous buck 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 programmable switching frequencies between 100 kHz and 2.2 MHz, with spread spectrum capability. Output voltage ranges from 0 V to 63 V. It features integrated cycle-by-cycle over-current protection, thermal foldback, and shutdown. Operating temperatures span -55°C to +125°C.
Feature Summary
- Integrates a high-side N-channel switching FET for compact design
- Supports analog, PWM, hybrid, and flexible dimming methods
- Includes open and short LED detection for fault management
- Provides thermal foldback and shutdown protection mechanisms
Applications
- LED lighting drivers
- General-purpose DC-DC conversion
- Industrial control systems
Procurement Notes
Verify the component authenticity by checking the manufacturer's part number against official datasheets. Confirm the VSON-14 package type and ensure the specific ordering suffix matches the required tape-and-reel configuration. Cross-reference technical specifications such as operating temperature range and electrical parameters to guarantee compatibility with the target application requirements before finalizing procurement.
Selection Notes
Select this component for applications requiring a single-channel buck topology with high input voltage support up to 65 V. It is suitable for designs needing integrated switching FETs and multiple dimming options including PWM and analog control. Consider the VSON-14 package for space-constrained layouts. Ensure the load current does not exceed 4 A and verify that the operating environment falls within the specified -55°C to +125°C temperature range.
Part Context
This part belongs to the TPS92205x series of LED drivers designed for high-voltage applications. It complements other variants like the TPS922050 and TPS922051, which offer different current ratings or pin configurations. The TPS922054 specifically provides a 4 A output capability, distinguishing it from lower-current counterparts while sharing similar control features and protection mechanisms within the family.
FAQ
What dimming methods are supported by the TPS922054MDMTR?
The device supports analog, PWM, hybrid, and flexible dimming methods.
Does the TPS922054MDMTR include internal protection features?
Yes, it includes cycle-by-cycle over-current protection, thermal foldback, thermal shutdown, and LED open/short detection.
