UCC2583NG4 Texas Instruments Integrated Circuit (Dual-In-Line Packages) In Stock
PWM secondary-side post-regulator controller with current-mode control, 8.9V to 14V input voltage range, and 14-pin PDIP package for offline switching power supplies. Enables precise secondary-side regulation in forward and flyback converter designs without optocoupler feedback. Available through authorized distributors with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Dual-In-Line Packages
- Pin Count
- 14
- Lifecycle
- OBSOLETE
- Datasheet
- UCC2583NG4 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
Key Features
- Secondary-side PWM post-regulator with current-mode control for precise output voltage regulation without optocoupler
- Input voltage range of 8.9V to 14V (nominal 12V) for standard telecom and industrial power bus compatibility
- 14-pin PDIP through-hole package for ease of prototyping and replacement in legacy power supply boards
- Integrated oscillator and PWM comparator simplify secondary-side regulation in flyback and forward converter designs
Applications
The UCC2583NG4 is designed for use as a secondary-side post-regulator in switching power supplies such as flyback and forward converters used in telecommunications, industrial equipment, and desktop power supplies. It enables accurate output voltage regulation on the secondary side using current-mode PWM, reducing dependency on optocoupler-based feedback paths. The device is well-suited for multi-output power supply designs where secondary regulation improves load transient performance and cross-regulation between outputs.
Specifications
| Pbfree Code | No |
| YTEOL | 0 |
| Analog IC - Other Type | SWITCHING CONTROLLER |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 14V |
| Input Voltage-Min | 8.9V |
| Input Voltage-Nom | 12V |
| JESD-30 Code | R-PDIP-T14 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| Output Current-Max | 1.8A |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | DIP14,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Qualification Status | Not Qualified |
| Surface Mount | NO |
| Switcher Configuration | SINGLE |
| Switching Frequency-Max | 500kHz |
| Technology | BICMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| Package | Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the function of the UCC2583NG4 in a power supply?
The UCC2583NG4 is a secondary-side PWM post-regulator controller used to regulate output voltage on the secondary side of isolated switching power supplies such as flyback and forward converters, providing tight regulation without requiring a primary-side feedback optocoupler.
What input voltage range does the UCC2583NG4 support?
The UCC2583NG4 operates from an input voltage of 8.9V minimum to 14V maximum, with a nominal operating voltage of 12V, making it compatible with standard 12V secondary rails common in telecommunications and industrial switching power supply designs.
What control mode does the UCC2583NG4 use?
The UCC2583NG4 employs current-mode pulse width modulation (PWM) control, which offers inherent cycle-by-cycle overcurrent limiting and superior line transient response compared to voltage-mode control in secondary-side regulation circuits.
What package is the UCC2583NG4 available in?
The UCC2583NG4 comes in a 14-pin plastic dual-in-line package (PDIP, JESD-30 code R-PDIP-T14), a through-hole package with 0.1-inch pin pitch that is convenient for prototyping, socketed designs, and replacement in existing legacy power supply boards.
Is the UCC2583NG4 suitable for multi-output power supplies?
Yes, the UCC2583NG4 is particularly useful in multi-output switching power supplies where secondary-side post-regulation improves cross-regulation between outputs. It can independently regulate one secondary output while maintaining performance across other output rails in complex power supply architectures.
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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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