UCD3040PFCG4 Texas Instruments Integrated Circuit (Other) In Stock
Texas Instruments UCD3040PFCG4 is a digital power controller with PWM control for programmable power factor correction and DC-DC conversion at 3 V to 3.6 V supply. Integrates digital loop compensation and fault management in an 80-pin PQFP package. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Other
- Pin Count
- 80
- Lifecycle
- OBSOLETE
- Datasheet
- UCD3040PFCG4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of UCD3040PFCG4?
- Digital PWM power controller with programmable loop compensation enabling adaptive tuning for PFC and DC-DC topologies
- 3 V to 3.6 V core supply with 80-pin PQFP package supporting complex multi-phase power conversion system integration
- Integrated fault management and protection logic for overcurrent, overvoltage, and thermal events in high-reliability power designs
What is UCD3040PFCG4 used for?
The UCD3040PFCG4 is designed for high-efficiency power factor correction front-ends and isolated DC-DC converter control in server power supplies, telecom rectifiers, and industrial power modules requiring digital loop control and programmable protection. Its digital PWM architecture allows firmware-based optimization of switching waveforms, dead-time control, and dynamic load response tuning without hardware redesign, making it suitable for adaptive power systems operating at 3.3 V control supply.
What are the specifications of UCD3040PFCG4?
| Pbfree Code | Yes |
| YTEOL | 0 |
| Analog IC - Other Type | SWITCHING CONTROLLER |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 3.6V |
| Input Voltage-Min | 3V |
| Input Voltage-Nom | 3.3V |
| JESD-30 Code | S-PQFP-G80 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| Output Voltage-Nom | 3.3V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TQFP80,.55SQ |
| Package Shape | SQUARE |
| Package Style | FLATPACK |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Current-Max (Isup) | 80mA |
| Supply Voltage-Nom (Vsup) | 3.3V |
| Surface Mount | YES |
| Switcher Configuration | SINGLE |
| Switching Frequency-Max | 2000kHz |
| Technology | CMOS |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.5mm |
| Terminal Position | QUAD |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 2 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Where can I find the UCD3040PFCG4 datasheet?
UCD3040PFCG4 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for UCD3040PFCG4?
Compatible alternatives and drop-in replacements for UCD3040PFCG4:
Switching Controller, Current/voltage-mode, 2000kHz Switching Freq-Max, CMOS, PQFP80
Frequently Asked Questions
What control technique does UCD3040PFCG4 use, and how does digital PWM improve power supply design flexibility?
UCD3040PFCG4 uses digital pulse width modulation (PWM) control, enabling firmware-programmable compensation coefficients, switching frequency adjustment, and protection thresholds. Unlike analog controllers, digital PWM allows the same hardware to be reprogrammed for different topologies or load profiles without PCB changes, reducing time-to-market in server and telecom power supply development.
What is the supply voltage range of UCD3040PFCG4, and what does this mean for system integration?
UCD3040PFCG4 operates from a 3 V to 3.6 V supply with 3.3 V nominal, aligning directly with standard 3.3 V system rails available in server boards and telecom line cards. No additional LDO or level-shifting is needed when the controller is powered from a standard 3.3 V plane, simplifying system integration and reducing BOM cost.
In which high-power applications is UCD3040PFCG4 most commonly deployed for power factor correction?
UCD3040PFCG4 is deployed in server power supply units (PSUs), telecom rectifier modules, and industrial UPS front-ends where active power factor correction is mandatory to meet IEC 61000-3-2 harmonic limits. Its digital loop control supports boost PFC topologies from input voltages of 85 V AC to 265 V AC when combined with appropriate gate driver and power stage components.
What package does UCD3040PFCG4 use, and how does the 80-pin count affect PCB routing requirements?
UCD3040PFCG4 is housed in an 80-pin PQFP (Plastic Quad Flat Package) with fine-pitch leads, providing access to multiple PWM outputs, ADC inputs, fault I/O, and communication interface pins. The 80-pin count requires a 4-layer or greater PCB with dedicated power and ground planes to manage signal integrity and thermal dissipation for the digital controller core operating at 3.3 V.
Related Guides
CSD87313DMS Synchronous Buck Power Stage Design Guide
Design a compact CSD87313DMS synchronous buck stage with practical guidance for loss, gate drive, PCB layout, EMI, thermal validation, and sourcing.
Aug 6, 2026
STEF05SGR eFuse Selection Guide for 5 V Overcurrent Protection
Choose STEF05SGR for 5 V overcurrent protection by checking current-limit margin, inrush, thermal loss, fault response, and sourcing.
Aug 6, 2026
C0402C103K3RACTU Selection Guide: Choosing a 10 nF 0402 MLCC
Select C0402C103K3RACTU by voltage margin, X7R behavior, tolerance, 0402 assembly risk, and qualified alternatives.
Aug 4, 2026
STM32H753VIT6 MCU Selection Guide: Memory, Package, Connectivity, and Security
Choose STM32H753VIT6 by evaluating memory architecture, LQFP-100 pin fit, connectivity, security, power, and sourcing tradeoffs.
Aug 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.
More from Texas Instruments
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.”
You May Also Like
ACS770ECB-200U-PFF-T
Allegro Microsystems
Integrated Circuit
ACS770KCB-150U-PFF-T
Allegro Microsystems
Integrated Circuit
MC33901WEF
NXP
Integrated Circuit
MC7808BDTRKG
ON Semiconductor
Integrated Circuit
PA94EC
Apex Microtechnology
Integrated Circuit
AP7315-28SR-7
Diodes Inc.
Integrated Circuit
74HCT245D
Nexperia
Integrated Circuit
CY62256VNLL-70ZXCT
Cypress Semiconductor
Integrated Circuit
EPM7032AETC44-4N
Intel
Integrated Circuit
EPM3512AQC208-10N
Intel
Integrated Circuit
EPM3256ATC144-7N
Intel
Integrated Circuit
EPM3256AQC208-7N
Intel
Integrated Circuit
EPM3256AQC208-10N
Intel
Integrated Circuit
EPM3128ATC100-7N
Intel
Integrated Circuit
EPM1270F256C4N
Intel
Integrated Circuit
EPF8282ATC100-4N
Intel
Integrated Circuit
EPF6016QC208-2N
Intel
Integrated Circuit
EPF6016ATC144-3N
Intel
Integrated Circuit
EPF10K30ATC144-3N
Intel
Integrated Circuit
EPC2TI32N
Intel
Integrated Circuit
EPC2LC20
Intel
Integrated Circuit
EP3SL150F1152C4N
Intel
Integrated Circuit
EP2SGX60DF780C5N
Intel
Integrated Circuit
EP2SGX60CF780C5N
Intel
Integrated Circuit