UCC2583DG4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The UCC2583DG4 is a current-mode PWM secondary-side controller from Texas Instruments designed for post-regulation in isolated power supplies with an 8.9V to 14V input range. It provides precise pulse-width modulation control for secondary-side regulation in a 14-pin SOIC package. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 14
- Lifecycle
- OBSOLETE
- Datasheet
- UCC2583DG4 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
- Current-mode PWM control enables inherent cycle-by-cycle current limiting for robust short-circuit protection in isolated supplies
- Secondary-side post-regulator architecture improves output regulation accuracy without optocoupler loop bandwidth limitations
- 8.9V to 14V input voltage range optimized for 12V auxiliary rail applications in telecom and industrial power systems
- 14-pin SOIC package offers compact surface-mount footprint with easy thermal management for power electronics boards
Applications
The UCC2583DG4 is used as a secondary-side PWM post-regulator in isolated DC-DC converters and switching power supplies for telecom equipment, servers, and industrial power systems. Its current-mode control architecture provides fast transient response and accurate output voltage regulation for auxiliary and logic supply rails. The device is well suited for multi-output flyback and forward converters where precise secondary regulation improves overall system efficiency and load regulation performance.
Specifications
| 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-PDSO-G14 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| Output Current-Max | 1.8A |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP14,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Current-Max (Isup) | 5mA |
| Surface Mount | YES |
| Switcher Configuration | SINGLE |
| Switching Frequency-Max | 500kHz |
| Technology | BICMOS |
| Temperature Grade | INDUSTRIAL |
| 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 UCC2583DG4:
Switching Controller, Current-mode, 1.8A, 500kHz Switching Freq-Max, BICMOS, PDSO14
Frequently Asked Questions
What control mode does the UCC2583DG4 use?
The UCC2583DG4 uses current-mode pulse width modulation (PWM) control, which provides inherent cycle-by-cycle current limiting and faster transient response compared to voltage-mode control. Current-mode control also simplifies compensation network design and improves power supply stability across a wide load range.
What is the input voltage range for the UCC2583DG4?
The UCC2583DG4 operates from an input voltage range of 8.9V minimum to 14V maximum, with a nominal input voltage of 12V. This range is optimized for 12V auxiliary bus applications commonly found in telecom rectifiers, server power supplies, and industrial switching converters.
What package is the UCC2583DG4 available in?
The UCC2583DG4 is packaged in a 14-pin SOIC (Small Outline Integrated Circuit) surface-mount package (JESD-30 code R-PDSO-G14). The SOIC package is widely supported by automated PCB assembly equipment and is suitable for high-volume production of power supply boards.
What is the primary application of the UCC2583DG4?
The UCC2583DG4 is designed primarily as a secondary-side PWM post-regulator for isolated power supplies, enabling precise output voltage regulation on the secondary side of flyback and forward converter topologies. This eliminates the need for optocoupler-based feedback in some configurations, simplifying the control loop.
Is the UCC2583DG4 suitable for telecom power applications?
Yes, the UCC2583DG4 is well suited for telecom power applications due to its 12V nominal input range and robust current-mode PWM control. It is commonly used in 48V to 12V brick converters and distributed power architectures where secondary post-regulation is required for multiple output rails.
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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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