UC2852N Texas Instruments Integrated Circuit (Dual-In-Line Packages) In Stock
The UC2852N is a high power-factor preregulator IC from Texas Instruments in a DIP-8 package, featuring current-mode control with PWM technique for input voltages from 12.5V to 30V. From $2.50, in stock, worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Dual-In-Line Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- UC2852N 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 for accurate power factor correction with low harmonic distortion
- Wide input voltage range of 12.5V to 30V, suitable for universal AC mains applications
- Compact DIP-8 package enabling straightforward PCB integration with minimal external components
- Integrated gate drive output for driving external boost MOSFETs in PFC preregulator stages
Applications
The UC2852N is widely used in power supply front-end stages where high power factor and low THD are required, such as in ATX computer power supplies, industrial switching regulators, and telecom power systems. Its current-mode PWM architecture makes it ideal for boost PFC converters operating from rectified AC mains between 85V and 265V. It is also employed in motor drive power stages and UPS systems demanding compliance with IEC 61000-3-2 harmonic limits.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Analog IC - Other Type | POWER FACTOR CONTROLLER |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 30V |
| Input Voltage-Min | 12.5V |
| Input Voltage-Nom | 24V |
| 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) | 6mA |
| Supply Voltage-Max (Vsup) | 30V |
| Surface Mount | NO |
| Switcher Configuration | BOOST |
| Switching Frequency-Max | 200kHz |
| Technology | BIPOLAR |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| 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 | 8542.39.00.90 |
| Country of Origin | Mexico |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the input voltage range of the UC2852N?
The UC2852N operates with a supply voltage from 12.5V (minimum) to 30V (maximum), with a nominal supply of 24V, making it suitable for typical boost PFC preregulator designs powered from rectified mains.
What control method does the UC2852N use for power factor correction?
The UC2852N uses current-mode pulse-width modulation (PWM) control to shape the input current waveform to follow the sinusoidal AC input voltage, achieving high power factor and reducing harmonic distortion in the AC line current.
What package does the UC2852N come in, and is it RoHS compliant?
The UC2852N is available in a standard 8-pin Dual-In-Line (DIP-8) through-hole package (JESD-30 code R-PDIP-T8). It is RoHS compliant with a Pb-free designation (JESD-609 code e4), meeting environmental regulations for lead-free manufacturing.
What are typical applications for the UC2852N?
Typical applications include boost power factor correction preregulators for AC-DC power supplies in computers, telecom equipment, industrial drives, and UPS systems, where IEC 61000-3-2 compliance for harmonic current limits is required.
Are there modern replacements or alternatives for the UC2852N?
Texas Instruments offers more modern PFC controllers such as the UCC28180 and UCC28019A that provide enhanced features including transition-mode and continuous-conduction-mode PFC control with integrated protections, which may be considered as alternatives for new designs.
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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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