UCC2973PWTR Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The UCC2973PWTR is a CCFL controller IC operating at 160kHz with current-mode PWM control, supporting 4.5V to 25V input range. Designed for cold cathode fluorescent lamp driving applications in compact 8-TSSOP package. Available from Texas Instruments with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- UCC2973PWTR Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $4.4700(MOQ 43)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Current-mode PWM control at 160kHz switching frequency for precise CCFL lamp regulation
- Wide input voltage range of 4.5V to 25V enabling versatile power supply compatibility
- Compact 8-TSSOP package minimizing PCB footprint in space-constrained LCD backlight designs
- RoHS-compliant lead-free construction meeting international environmental standards
Applications
The UCC2973PWTR is primarily used in LCD backlight inverter circuits for notebook computers, monitors, and flat-panel displays requiring CCFL lamp driving. It is well-suited for portable electronics and industrial display applications where efficient fluorescent lamp control with pulse-width modulation is needed. The device also finds use in general-purpose fluorescent lighting control systems demanding compact form factor and wide input voltage tolerance.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Analog IC - Other Type | FLUORESCENT LIGHT CONTROLLER |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 25V |
| Input Voltage-Min | 4.5V |
| Input Voltage-Nom | 12V |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP8,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Voltage-Nom (Vsup) | 12V |
| Surface Mount | YES |
| Switcher Configuration | CURRENT FED PUSH-PULL |
| Switching Frequency-Max | 220kHz |
| Technology | BICMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| 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 | 8542.39.00.90 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for UCC2973PWTR:
Frequently Asked Questions
What is the switching frequency of the UCC2973PWTR?
The UCC2973PWTR operates at a fixed 160kHz switching frequency, which is optimized for CCFL lamp driving applications and helps minimize external component size in LCD backlight inverter designs.
What input voltage range does the UCC2973PWTR support?
The UCC2973PWTR supports an input voltage range from 4.5V minimum to 25V maximum, with a nominal operating voltage of 12V, making it compatible with a wide variety of power supply configurations in consumer and industrial applications.
What package type is the UCC2973PWTR available in?
The UCC2973PWTR is available in an 8-pin TSSOP (Thin Shrink Small Outline Package) package, identified by JESD-30 code R-PDSO-G8, which provides a compact PCB footprint suitable for space-constrained designs.
Is the UCC2973PWTR RoHS compliant?
Yes, the UCC2973PWTR carries a Pb-free code of Yes and JESD-609 code e4, confirming it meets RoHS lead-free requirements and is compliant with international environmental regulations for electronic components.
What control method does the UCC2973PWTR use?
The UCC2973PWTR uses current-mode control combined with pulse-width modulation (PWM) technique, enabling accurate and stable regulation of CCFL lamp current for consistent brightness and lamp lifetime in backlight applications.
Related Guides
How to Choose a 3528 SMD Indicator LED for Blue Status Lighting: Selection Guide
A practical 3528 SMD indicator LED selection guide using 150141BS73100 and related Wurth 150141 variants for blue status lighting.
Jul 5, 2026
BAS70KFILM Design Guide for Low-Leakage Signal Clamping and RF Detector Inputs
Practical BAS70KFILM design guidance for signal clamps, RF detector inputs, leakage control, capacitance, layout, and sourcing alternatives.
Jul 5, 2026
How to Choose a BAS70 Schottky Diode for Signal Clamping: Selection Guide
A practical BAS70KFILM and BAS70-family Schottky diode selection guide for signal clamping, RF detection, leakage, and topology choices.
Jul 4, 2026
AMC1202DWVR Design Guide for Isolated Current Sensing
Practical AMC1202DWVR design guide covering shunt sizing, isolation layout, input filtering, ADC scaling, and sourcing choices.
Jul 4, 2026
Why Buy from FindMyChip
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 |
|---|---|---|
| 43+ | $6.9900 | $300.57 |
| 500+ | $5.0300 | $2515.00 |
| 1000+ | $4.7500 | $4750.00 |
| 10000+ | $4.4700 | $44700.00 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“FindMyChip sourced our entire STM32 BOM in 48 hours when our usual distributor had 16-week lead times.”