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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)：65V
- 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, Wettable Flank
- Package / Case：14-VDFN Exposed Pad
- Supplier Device Package：14-VSON (4.5x3)
- Grade：-
- Qualification：-
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Overview
The TPS922055MDMTR is a non-synchronous buck LED driver IC from Texas Instruments, designed for high-performance lighting applications. It features an integrated switching FET capable of delivering up to 4 A of output current. The device operates with an input voltage range of 4.5 V to 65 V and supports programmable switching frequencies from 100 kHz to 2.2 MHz. It offers flexible dimming capabilities including analog, PWM, hybrid, and flexible modes. The IC includes comprehensive protection features such as cycle-by-cycle over-current protection, thermal foldback, and thermal shutdown.
Feature Summary
- Integrates a high-side N-channel power switch for efficient buck conversion
- Supports multiple dimming methods including analog, PWM, hybrid, and flexible control
- Includes built-in LED open and short circuit detection for system safety
- Features spread spectrum modulation to reduce electromagnetic interference
Applications
- General illumination LED drivers
- Automotive interior and exterior lighting systems
- Industrial lighting fixtures
- Portable battery-powered lighting devices
Procurement Notes
Verify the exact package type and tape-and-reel specifications against the official datasheet before ordering. Confirm that the operating temperature range meets your specific application requirements. Ensure compatibility with your chosen dimming interface. Check for any recent lifecycle notifications or obsolescence notices from the manufacturer. Validate component authenticity through authorized distribution channels.
Selection Notes
Select this component when a single-channel buck topology is required for driving high-power LEDs. It is suitable for designs needing wide input voltage ranges and high efficiency. Consider this part if spread spectrum functionality is needed for EMI reduction. Evaluate the thermal performance requirements relative to the VSON-14 package. Compare against other members of the TPS92205x family for specific feature needs.
Part Context
This device belongs to the TPS92205x family of non-synchronous buck LED drivers. It shares functional similarities with parts like the TPS922054 and TPS922055DRRR but differs in packaging and specific pinout configurations. The family is characterized by integrated power switches and advanced dimming controls. It serves as a core component in modern LED lighting architectures requiring compact solutions.
Replacement Considerations
Direct replacements within the same family include TPS922054MDMTR and TPS922055DRRR. Verify pin-to-pin compatibility and electrical parameter alignment before substitution. Review datasheet differences regarding package dimensions and thermal characteristics. Ensure that alternative parts support the required dimming protocols and input voltage ranges.
