TPS92550TZ/NOPB Texas Instruments Integrated Circuit (Other) In Stock
Texas Instruments TPS92550TZ/NOPB is a single-channel constant-current buck LED driver supporting up to 450 mA output and 14 W total power in a 7-pin PSSO package. Designed for high-efficiency LED lighting applications with precise current regulation. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Other
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- TPS92550TZ/NOPB Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $7.6100(MOQ 1)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Constant-current buck topology delivering up to 450 mA for precise single-channel LED brightness control
- 14 W power handling capability enabling high-lumen LED string drive for commercial and industrial lighting
- 7-pin PSSO package with exposed thermal pad for efficient heat dissipation in compact LED driver modules
Applications
The TPS92550TZ/NOPB is designed for single-channel constant-current LED drivers in commercial, industrial, and architectural lighting applications requiring up to 14 W LED string drive. Its buck converter topology provides high efficiency for LED luminaires, down-lights, and street lighting where regulated 450 mA current maintains consistent light output over temperature. The device simplifies LED driver design by integrating current regulation into a 7-pin PSSO package suitable for thermal management in lighting modules.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Input Characteristics | STANDARD |
| Interface IC Type | LED DISPLAY DRIVER |
| JESD-30 Code | R-PSSO-G7 |
| JESD-609 Code | e3 |
| Multiplexed Display Capability | NO |
| Number of Channels | 1 |
| Number of Functions | 1 |
| Number of Segments | 2 |
| Output Characteristics | CONSTANT-CURRENT |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SMSIP7H,.55,50 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG |
| Peak Reflow Temperature (Cel) | 245 |
| Qualification Status | Not Qualified |
| Supply Current-Max | 2.7mA |
| Supply Voltage-Max | 36V |
| Supply Voltage-Min | 4.5V |
| Supply Voltage-Nom | 24V |
| Surface Mount | YES |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | SINGLE |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 3 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the maximum output current and power rating of the TPS92550TZ/NOPB for LED driver applications?
The TPS92550TZ/NOPB delivers a maximum constant output current of 450 mA and supports up to 14 W total LED string power. This rating is sufficient to drive mid-power LED arrays used in commercial down-lights, track lighting, and industrial fixtures requiring regulated constant-current operation at efficiency-optimized duty cycles.
How does the constant-current buck topology of TPS92550TZ/NOPB benefit LED lifetime and brightness consistency?
The buck topology of the TPS92550TZ/NOPB regulates output current to 450 mA independent of LED forward voltage variation, preventing the current drift that accelerates LED degradation. Constant-current drive at fixed 450 mA maintains lumen output consistency across temperature and LED bin variation, extending useful LED lifetime compared to resistor-limited or voltage-regulated drive approaches.
What package does TPS92550TZ/NOPB use and how does it handle the 14 W thermal dissipation?
The TPS92550TZ/NOPB is housed in a 7-pin PSSO (Power Small Outline) package which includes an exposed thermal pad on the underside. The PSSO package enables direct solder attachment to a PCB thermal land, allowing 14 W of LED driver power dissipation to be conducted to the board copper and external heatsink, keeping junction temperature within safe operating limits.
For a 10 W LED retrofit bulb design, is TPS92550TZ/NOPB a suitable single-IC solution?
Yes, the TPS92550TZ/NOPB handles up to 14 W and 450 mA output, making it well within the requirements of a 10 W LED retrofit bulb. The single-channel constant-current regulation eliminates the need for external current-sense amplifiers and reduces BOM count in the driver circuit, simplifying PCB design for compact A19 or GU10 lamp form factors.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $9.2000 | $9.20 |
| 5+ | $8.0000 | $40.00 |
| 10+ | $7.6100 | $76.10 |
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