UC3846N Texas Instruments Integrated Circuit (Dual-In-Line Packages) In Stock
UC3846N is a current-mode PWM controller IC from Texas Instruments, featuring 7.25V–40V input range, pulse width modulation control, and 16-pin DIP package. From $1.05, in stock worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Dual-In-Line Packages
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- UC3846N Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.0499(MOQ 1)
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Current-mode control for improved line regulation and faster transient response
- Wide input voltage range: 7.25V to 40V, suitable for diverse power supply designs
- Pulse width modulation (PWM) technique for precise duty cycle regulation
- 16-pin DIP (R-PDIP-T16) package for easy through-hole PCB integration
- Lead-free (Pb-free) compliant, meeting RoHS environmental standards
Applications
The UC3846N is widely used in switch-mode power supplies (SMPS), DC-DC converters, and battery charging circuits. Its current-mode PWM control makes it ideal for flyback, forward, and push-pull converter topologies in industrial power systems, telecom equipment, and embedded systems. It is also suitable for motor drive controllers and UPS applications requiring precise voltage regulation.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Analog IC - Other Type | SWITCHING CONTROLLER |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 40V |
| Input Voltage-Min | 7.25V |
| Input Voltage-Nom | 15V |
| JESD-30 Code | R-PDIP-T16 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| Output Current-Max | 0.5A |
| Output Voltage-Max | 5.2V |
| Output Voltage-Min | 5V |
| Output Voltage-Nom | 5.1V |
| 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) | 21mA |
| Supply Voltage-Max (Vsup) | 40V |
| Supply Voltage-Min (Vsup) | 7.7V |
| Supply Voltage-Nom (Vsup) | 15V |
| Surface Mount | NO |
| Switcher Configuration | BUCK-BOOST |
| Switching Frequency-Max | 500kHz |
| Technology | BICMOS |
| Temperature Grade | COMMERCIAL |
| 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 | Malaysia |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for UC3846N:
Switching Controller, Voltage-mode, 0.5A, 500kHz Switching Freq-Max, BIPolar, PDIP16
Switching Controller, Voltage-mode, 0.5A, 500kHz Switching Freq-Max, BIPolar, CDIP16
Switching Controller, Voltage-mode, 0.5A, 500kHz Switching Freq-Max, BIPolar, PDIP16
Frequently Asked Questions
What is the input voltage range of the UC3846N?
The UC3846N operates with an input voltage range of 7.25V minimum to 40V maximum, with a nominal operating voltage of 15V. This wide range makes it suitable for a variety of power supply and DC-DC converter designs in industrial and telecom applications.
What control mode does the UC3846N use?
The UC3846N uses current-mode control with pulse width modulation (PWM) technique. Current-mode control provides improved line regulation, inherent current limiting, and faster transient response compared to voltage-mode controllers, making it ideal for high-performance power supply designs.
What package type is the UC3846N available in?
The UC3846N comes in a 16-pin Dual In-Line Package (DIP), specifically the JESD-30 R-PDIP-T16 through-hole package. This traditional DIP format simplifies PCB layout and prototyping, and is compatible with standard 16-pin IC sockets.
What are typical applications for the UC3846N?
The UC3846N is commonly used in switch-mode power supplies (SMPS), flyback converters, forward converters, push-pull topologies, battery chargers, DC-DC converters, and UPS systems. Its current-mode PWM control is especially valued in industrial power systems and telecom equipment.
Is the UC3846N RoHS compliant?
Yes, the UC3846N is lead-free (Pb-free) and carries the JESD-609 e4 code, indicating it meets RoHS environmental compliance requirements. This makes it suitable for use in modern electronics manufacturing that requires halogen-free and lead-free components.
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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.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $5.5350 | $5.54 |
| 3+ | $4.6125 | $13.84 |
| 8+ | $2.7675 | $22.14 |
| 73+ | $2.3985 | $175.09 |
| 185+ | $1.0861 | $200.93 |
| 240+ | $1.0499 | $251.98 |
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