UCC2809PW-2G4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
UCC2809PW-2G4 is a current-mode PWM secondary-side controller from Texas Instruments designed for isolated power supply regulation. It operates from a 10V to 15V supply, uses pulse-width modulation control, and is housed in an 8-pin TSSOP package with green/halogen-free construction. Available from stock worldwide with competitive pricing.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- OBSOLETE
- Datasheet
- UCC2809PW-2G4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of UCC2809PW-2G4?
- Current-mode PWM control topology provides inherent cycle-by-cycle overcurrent limiting and improved line transient response in isolated power supplies
- 10V to 15V input voltage range with 12V nominal operation enables direct biasing from standard auxiliary windings in flyback and forward converters
- 8-pin TSSOP package (JESD-30 R-PDSO-G8) with JESD-609 e4 green/halogen-free rating minimizes PCB footprint while meeting modern environmental standards
What is UCC2809PW-2G4 used for?
The UCC2809PW-2G4 is designed for the secondary-side control stage of isolated DC-DC converters including flyback, forward, and half-bridge topologies used in telecom power supplies, industrial power modules, and server power systems. It regulates output voltage by modulating the PWM duty cycle on the secondary side, improving isolation and reducing optocoupler bandwidth requirements. Its compact TSSOP package makes it well-suited for space-constrained AC-DC adapter and on-board power converter designs.
What are the specifications of UCC2809PW-2G4?
| Pbfree Code | Yes |
| YTEOL | 0 |
| Analog IC - Other Type | SWITCHING CONTROLLER |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 15V |
| Input Voltage-Min | 10V |
| Input Voltage-Nom | 12V |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| Output Current-Max | 0.8A |
| 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 |
| Screening Level | TS 16949 |
| Surface Mount | YES |
| Switcher Configuration | SINGLE |
| Switching Frequency-Max | 1000kHz |
| Technology | BCDMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| 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 | 8542.39.00.60 |
Where can I find the UCC2809PW-2G4 datasheet?
UCC2809PW-2G4 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for UCC2809PW-2G4?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
Which isolated power-supply roles suit UCC2809PW-2G4?
UCC2809PW-2G4 is a current-mode PWM switching controller for secondary-side regulation, supporting designs that use a 10 V to 15 V controller supply rail.
How does the current-mode control approach affect converter design?
Current-mode PWM control helps simplify loop compensation and current limiting in many isolated converters, with the controller typically biased from a 12 V nominal supply.
What package and lifecycle details should purchasing teams verify?
The part is supplied in an 8-pin small-outline/TSSOP style package and is listed as obsolete, so buyers should confirm lot availability and form-fit requirements before production orders.
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