UC3871DWG4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The UC3871DWG4 is a fluorescent lamp controller IC from Texas Instruments using current-mode resonant control with a 4.5 V to 20 V input voltage range. It comes in an 18-pin SOIC package suitable for compact lighting driver designs. Available from stock worldwide with competitive pricing.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 18
- Lifecycle
- OBSOLETE
- Datasheet
- UC3871DWG4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Current-mode resonant control topology enabling efficient and stable fluorescent lamp regulation
- Wide input voltage range of 4.5 V to 20 V supporting diverse power supply configurations
- 18-pin SOIC package (R-PDSO-G18) providing easy PCB integration in space-constrained lighting driver designs
Applications
The UC3871DWG4 is designed for driving fluorescent lamps in lighting control systems, including LCD backlighting and general-purpose fluorescent lighting applications. Its resonant control technique ensures efficient power transfer and minimizes electromagnetic interference in the lamp drive circuit. It is widely used in industrial, commercial, and consumer lighting products requiring reliable and compact lamp driver solutions.
Specifications
| YTEOL | 0 |
| Analog IC - Other Type | FLUORESCENT LIGHT CONTROLLER |
| Control Mode | CURRENT-MODE |
| Control Technique | RESONANT CONTROL |
| Input Voltage-Max | 20V |
| Input Voltage-Min | 4.5V |
| Input Voltage-Nom | 5V |
| JESD-30 Code | R-PDSO-G18 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| Output Current-Max | 0.1A |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP18,.4 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Current-Max (Isup) | 14mA |
| Surface Mount | YES |
| Switcher Configuration | PUSH-PULL |
| Switching Frequency-Max | 78kHz |
| Technology | BIPOLAR |
| Temperature Grade | COMMERCIAL |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 2 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for UC3871DWG4:
Rochester Electronics LLC FLUORESCENT LIGHT CONTROLLER, 78kHz SWITCHING FREQ-MAX, PDSO18, GREEN, PLASTIC, SOIC-18
Frequently Asked Questions
What type of lamps does the UC3871DWG4 drive?
The UC3871DWG4 is specifically designed to drive fluorescent lamps using a current-mode resonant control technique. It is suitable for CCFL backlighting in LCD panels and general fluorescent lighting applications requiring precise and efficient lamp control.
What is the input voltage range of the UC3871DWG4?
The UC3871DWG4 operates with an input voltage range of 4.5 V minimum to 20 V maximum, with a nominal input voltage of 5 V. This wide range allows it to be powered from standard logic supply rails or dedicated power converters.
What package does the UC3871DWG4 use?
The UC3871DWG4 comes in an 18-pin Small Outline IC (SOIC) package with JESD-30 code R-PDSO-G18. This surface-mount package allows for compact PCB layouts in lighting driver boards and display backlight units.
What control method does the UC3871DWG4 implement?
The UC3871DWG4 implements current-mode resonant control, which optimizes switching efficiency and reduces electromagnetic interference in the lamp drive circuit. This control technique is well-suited for high-frequency fluorescent lamp ballast designs.
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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.
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