UCC3801NG4 Texas Instruments Integrated Circuit (Dual-In-Line Packages) In Stock
The UCC3801NG4 is a current-mode PWM switching controller IC from Texas Instruments in an 8-pin DIP package. It operates from 8.2 V to 12 V input and uses pulse width modulation with current-mode control for stable, efficient power supply regulation. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Dual-In-Line Packages
- Pin Count
- 8
- Lifecycle
- OBSOLETE
- Datasheet
- UCC3801NG4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Current-mode PWM controller with pulse width modulation for precise, cycle-by-cycle regulation
- Wide input voltage range of 8.2 V to 12 V in a through-hole 8-pin DIP package for easy prototyping
- Optimized for flyback and forward converter topologies in industrial and consumer power supply designs
Applications
The UCC3801NG4 is used in isolated and non-isolated switching power supply designs, including flyback converters, forward converters, and boost regulators for industrial equipment and embedded systems. Its current-mode control architecture provides fast transient response and inherent cycle-by-cycle current limiting, making it suitable for power supplies in telecommunications, industrial control, and test instrumentation. The 8-pin DIP package is convenient for breadboarding and low-volume prototype development.
Specifications
| Pbfree Code | Yes |
| YTEOL | 0 |
| Analog IC - Other Type | SWITCHING CONTROLLER |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 12V |
| Input Voltage-Min | 8.2V |
| Input Voltage-Nom | 10V |
| JESD-30 Code | R-PDIP-T8 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| Output Current-Max | 1A |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | DIP8,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Qualification Status | Not Qualified |
| Supply Current-Max (Isup) | 25mA |
| Supply Voltage-Max (Vsup) | 12V |
| Supply Voltage-Nom (Vsup) | 10V |
| Surface Mount | NO |
| Switcher Configuration | SINGLE |
| Switching Frequency-Max | 1000kHz |
| Technology | BICMOS |
| Temperature Grade | COMMERCIAL |
| 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 UCC3801NG4 and what control method does it use?
The UCC3801NG4 is a current-mode PWM switching controller from Texas Instruments. It uses pulse width modulation combined with current-mode control, which means the duty cycle is regulated based on both the output voltage error signal and the instantaneous inductor or switch current. This provides inherent cycle-by-cycle overcurrent protection and improved transient response.
What is the input voltage range of the UCC3801NG4?
The UCC3801NG4 operates with an input voltage between 8.2 V minimum and 12 V maximum, with a nominal operating voltage of 10 V. This range is typical for controllers powered from a bias winding or pre-regulated supply in switching power supply designs.
What package does the UCC3801NG4 come in?
The UCC3801NG4 comes in an 8-pin Dual-In-Line Package (PDIP), identified by JESD-30 code R-PDIP-T8. This through-hole package is suitable for breadboard prototyping and hand-soldered designs. Texas Instruments also offers the UCC3801 in surface-mount packages for production-oriented PCB designs.
What types of power converter topologies is the UCC3801NG4 suited for?
The UCC3801NG4 is well suited for flyback, forward, boost, and other single-ended PWM converter topologies commonly used in AC/DC and DC/DC power supplies. Its current-mode PWM architecture simplifies loop compensation and enables reliable operation in designs with output power levels from a few watts up to tens of watts.
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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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