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Product Detailed Parameters
- Description：65-V, 2-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：2A
- Frequency：100kHz ~ 2.2MHz
- Dimming：Analog, PWM
- Applications：Backlight, Lighting
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：SOT-23-14 Thin, SOT-23 Variant
- Supplier Device Package：14-SOT-23-THIN
- Grade：-
- Qualification：-
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Overview
The TPS922052DYYR is a single-channel buck LED driver IC from Texas Instruments, housed in a SOT-23-THN-14 package. It supports an input voltage range of 4.5 V to 65 V and delivers up to 2 A of output current. The device operates at a programmable switching frequency between 100 kHz and 2.2 MHz with spread spectrum capability. It features an integrated switching FET and provides an output voltage range of 0 V to 63 V. The component functions within a temperature range of -40°C to +125°C.
Feature Summary
- Integrates a high-side N-channel power switch for compact design
- Supports hybrid dimming combining analog and PWM control methods
- Includes cycle-by-cycle over-current protection and thermal foldback
- Provides fault output signaling for open and short LED detection
Applications
- General solid-state lighting fixtures
- Industrial and commercial LED illumination systems
- Automotive exterior lighting applications
Procurement Notes
Verify the specific suffix DYYR against the manufacturer's latest datasheet to confirm the reel quantity and tape-and-reel specifications. Ensure the ordering part number matches the required package variant and temperature grade. Cross-reference the RoHS compliance status and any recent product change notifications before finalizing procurement orders.
Selection Notes
Select this component when designing high-voltage LED drivers requiring a compact footprint and integrated power switch. It is suitable for applications needing flexible dimming options and robust protection features. Consider the thermal performance requirements of the SOT-23-THN-14 package relative to the expected load current and ambient conditions.
Part Context
This device belongs to the TPS92205x family of buck LED drivers designed for high-efficiency constant current regulation. The series targets applications demanding high input voltage tolerance and precise current control. It complements other Texas Instruments power management solutions for comprehensive lighting system designs.
Replacement Considerations
Consult official substitution guides for compatible parts within the same functional family. Verify pin compatibility and electrical parameter alignment before replacing existing components in established designs.
