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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：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：12-WFDFN Exposed Pad
- Supplier Device Package：12-WSON (3x3)
- Grade：-
- Qualification：-
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Overview
The TPS922054DRRR 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 switching frequencies between 100 kHz and 2.2 MHz with spread spectrum capability. Output voltage ranges from 0 V to 63 V. It features analog, flexible, hybrid, and PWM dimming options. Protection includes cycle-by-cycle over-current, thermal foldback, thermal shutdown, LED open/short detection, and a fault output pin.
Feature Summary
- Integrated high-side switching FET for compact design
- Supports multiple dimming methods including PWM and analog
- Comprehensive protection against over-current and thermal faults
- Built-in diagnostics for LED open and short circuit conditions
Applications
- General LED lighting applications
- Industrial lighting systems
- Automotive exterior lighting modules
- High-brightness LED drivers
Procurement Notes
Verify the exact suffix DRRR against official Texas Instruments documentation to confirm tape-and-reel packaging specifications. Ensure compatibility with required operating temperatures ranging from -55°C to +125°C. Cross-reference the VSON-14 footprint dimensions during PCB layout. Confirm RoHS compliance status through the manufacturer's latest release notes before final procurement.
Selection Notes
Select this component when a single-channel buck topology is required for driving high-power LEDs. Consider the 4 A current limit and 65 V input range for system design constraints. Evaluate the need for specific dimming interfaces such as PWM or hybrid control. Review thermal management requirements given the integrated switch and wide temperature operation capabilities.
Part Context
This part belongs to the TPS92205x series of LED drivers designed for versatile lighting solutions. It complements evaluation boards like the TPS922055DMTREVM for development purposes. The series targets applications requiring robust protection and flexible dimming control within a small form factor suitable for surface-mount assembly.
Replacement Considerations
Consult official substitution lists for direct replacements. Verify electrical parameters and pinout compatibility if considering alternative manufacturers. Ensure that any substitute maintains the same buck topology and current handling capabilities.
