UCC38501NG4 Texas Instruments Integrated Circuit (Dual-In-Line Packages) In Stock
The UCC38501NG4 is a power factor correction and PWM controller IC from Texas Instruments, operating on a 10.3V to 15V supply at up to 115 kHz. It features current-mode control with programmable options for voltage and current mode operation, housed in a 20-pin PDIP package. Available in stock worldwide with fast shipping.
- Manufacturer
- Texas Instruments
- Package
- Dual-In-Line Packages
- Pin Count
- 20
- Lifecycle
- OBSOLETE
- Datasheet
- UCC38501NG4 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
- Integrated power factor correction (PFC) controller with post-regulator combines PFC and PWM control in a single IC, reducing component count and PCB size
- Current-mode PWM control with programmable voltage-mode and current-mode options provides design flexibility for diverse switching power supply topologies
- Supports switching frequencies up to 115 kHz with 10.3V to 15V supply voltage, enabling efficient compact power conversion in SMPS designs
Applications
The UCC38501NG4 is used in switching mode power supplies (SMPS) for desktop computers, server power units, and industrial equipment where power factor correction is required to comply with regulatory standards such as IEC 61000-3-2. It controls the boost PFC stage and the downstream DC-DC converter stage in a single IC, reducing system complexity and improving conversion efficiency. It is also applied in telecom power supplies, UPS systems, and LED driver circuits requiring high power factor and stable regulated output.
Specifications
| Pbfree Code | Yes |
| YTEOL | 0 |
| Additional Feature | CAN ALSO BE PROGRAMMED FOR CURRENT MODE AND VOLTAGE MODE |
| Analog IC - Other Type | POWER FACTOR CONTROLLER WITH POST REGULATOR |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 15V |
| Input Voltage-Min | 10.3V |
| Input Voltage-Nom | 12V |
| JESD-30 Code | R-PDIP-T20 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| Output Current-Max | 1.2A |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | DIP20,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Qualification Status | Not Qualified |
| Supply Current-Max (Isup) | 6mA |
| Surface Mount | NO |
| Switcher Configuration | BOOST |
| Switching Frequency-Max | 120kHz |
| 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
Compatible alternatives and drop-in replacements for UCC38501NG4:
Power Factor Controller With Post Regulator, Current-mode, 1.2A, 120kHz Switching Freq-Max, BICMOS, PDIP20
Frequently Asked Questions
What control modes does the UCC38501NG4 support?
The UCC38501NG4 primarily operates in current-mode PWM control but can also be programmed for voltage-mode operation. This dual-mode flexibility allows designers to optimize the control loop for different power supply topologies, from boost PFC stages to isolated DC-DC converters in a unified controller design.
What is the operating supply voltage for the UCC38501NG4?
The UCC38501NG4 operates with a nominal supply voltage of 12V, with a minimum of 10.3V and a maximum of 15V. This supply range is typical for power supply control ICs that are powered from an auxiliary winding or housekeeping supply within the power converter itself.
What switching frequency does the UCC38501NG4 support?
The UCC38501NG4 supports switching frequencies up to 115 kHz, allowing designers to use smaller magnetic components (inductors and transformers) in the power stage. Higher switching frequencies reduce the size and weight of the overall power supply, which is critical in compact server and industrial power supply designs.
What package does the UCC38501NG4 come in?
The UCC38501NG4 is housed in a 20-pin plastic dual-in-line package (PDIP), indicated by the JESD-30 code R-PDIP-T20. The through-hole DIP package is widely used in prototyping, repair, and legacy production where DIP socket installation or hand soldering is preferred.
What are common applications for the UCC38501NG4 power factor controller?
Common applications include ATX and server power supplies, industrial SMPS, UPS systems, and commercial lighting drivers requiring IEC 61000-3-2 harmonic compliance. The IC's combined PFC and PWM functionality makes it suitable for two-stage AC-DC power conversion systems where both power factor correction and output regulation are needed in a single controller.
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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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