UC3848NG4 Texas Instruments Integrated Circuit (Dual-In-Line Packages) In Stock
UC3848NG4 is an average current-mode PWM switching controller IC from Texas Instruments in a 16-pin DIP package. It operates from an 11 V to 20 V input supply and uses pulse-width modulation to regulate output current with high accuracy. Designed for power factor correction, DC-DC converters, and battery charger circuits requiring precise average current control.
- Manufacturer
- Texas Instruments
- Package
- Dual-In-Line Packages
- Pin Count
- 16
- Lifecycle
- OBSOLETE
- Datasheet
- UC3848NG4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of UC3848NG4?
- Average current-mode control for accurate output current regulation
- Pulse-width modulation (PWM) with input range of 11 V to 20 V
- 16-pin DIP package compatible with through-hole prototype and production boards
- Integrated gate drive output for direct MOSFET switching
- Pb-free, RoHS-compliant construction for regulatory compliance
What is UC3848NG4 used for?
UC3848NG4 is used in power factor correction (PFC) pre-stages for offline power supplies, where average current-mode control produces near-unity power factor with low harmonic distortion. It is also applied in precision battery chargers, LED driver power stages, and industrial DC-DC converters requiring tight output current regulation over wide input voltage ranges.
What are the specifications of UC3848NG4?
| Pbfree Code | Yes |
| YTEOL | 0 |
| Analog IC - Other Type | SWITCHING CONTROLLER |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 20V |
| Input Voltage-Min | 11V |
| Input Voltage-Nom | 12V |
| JESD-30 Code | R-PDIP-T16 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| Output Current-Max | 2.2A |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | DIP16,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Qualification Status | Not Qualified |
| Supply Current-Max (Isup) | 0.4mA |
| Surface Mount | NO |
| Switcher Configuration | SINGLE |
| Switching Frequency-Max | 1000kHz |
| Technology | BIPOLAR |
| 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 |
Where can I find the UC3848NG4 datasheet?
UC3848NG4 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for UC3848NG4?
Compatible alternatives and drop-in replacements for UC3848NG4:
Switching Controller, Current-mode, 2.2A, 1000kHz Switching Freq-Max, BIPolar, PDIP16
Frequently Asked Questions
What input voltage range does UC3848NG4 support for PWM switching controller applications?
UC3848NG4 operates from an input supply of 11 V to 20 V with a nominal 12 V supply voltage. This range is compatible with standard 12 V bus rails found in telecom rectifiers, industrial power supplies, and PFC converter auxiliary windings, making it straightforward to power the controller directly from the regulated secondary rail.
How does average current-mode control in UC3848NG4 differ from peak current-mode for power factor correction designs?
Average current-mode control samples the inductor current over an entire switching cycle and regulates the average value, resulting in near-sinusoidal input current waveforms with THD below 5% in well-designed PFC stages. Peak current-mode controllers track only the peak value, which introduces higher harmonic distortion and requires slope compensation above 50% duty cycle, a complication that average current-mode avoids.
What package does UC3848NG4 use, and how does that affect prototyping and production assembly?
The device is supplied in a 16-pin DIP package (PDIP-16), which is breadboard and through-hole PCB compatible. This makes rapid prototyping straightforward without SMT tooling, though for high-volume production the wider 16-pin DIP footprint occupies more board area than equivalent 16-pin SOIC or TSSOP alternatives.
Is UC3848NG4 still in active production, and what should buyers consider regarding lifecycle risk?
The YTEOL field shows 0, indicating the part may be at or near end of life. Procurement teams should confirm current stock levels with distributors, evaluate last-time-buy quantities, and assess drop-in alternatives such as UC3854 or UCC3818 for new designs needing long-term supply continuity beyond a 2-year horizon.
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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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