UC3842ADW Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
UC3842ADW is a current-mode PWM switching controller IC from Texas Instruments, supporting 28V input voltage and pulse width modulation control. Available in 16-pin SOIC package. From $0.77 in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- UC3842ADW Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.7721(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 PWM control for improved line regulation and simpler compensation
- Wide input voltage range: 11.5V to 28V, suitable for diverse power supply designs
- 16-pin Small Outline (SOIC) package for compact PCB integration
- Built-in oscillator with programmable frequency via external R/C components
- Undervoltage lockout and cycle-by-cycle current limiting for reliable protection
Applications
UC3842ADW is widely used in switch-mode power supply (SMPS) designs such as offline flyback converters, forward converters, and DC-DC regulators. It is ideal for industrial power systems, consumer electronics adapters, and battery chargers where current-mode control and accurate PWM regulation are essential.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Analog IC - Other Type | SWITCHING CONTROLLER |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 28V |
| Input Voltage-Min | 11.5V |
| Input Voltage-Nom | 15V |
| JESD-30 Code | R-PDSO-G16 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| Output Current-Max | 1A |
| Output Voltage-Max | 5.1V |
| Output Voltage-Min | 4.9V |
| Output Voltage-Nom | 5V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP16,.4 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Current-Max (Isup) | 25mA |
| Supply Voltage-Max (Vsup) | 28V |
| Supply Voltage-Min (Vsup) | 16V |
| Supply Voltage-Nom (Vsup) | 11V |
| Surface Mount | YES |
| Switcher Configuration | BUCK-BOOST |
| Switching Frequency-Max | 500kHz |
| Technology | BIPOLAR |
| Temperature Grade | COMMERCIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 2 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
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 UC3842ADW?
The UC3842ADW operates with an input voltage range of 11.5V to 28V, with a nominal operating voltage of 15V. This makes it suitable for a wide range of AC/DC and DC/DC power supply topologies.
What type of control does UC3842ADW use?
UC3842ADW uses current-mode control combined with pulse width modulation (PWM). This technique improves line transient response, simplifies loop compensation, and provides inherent cycle-by-cycle current limiting for enhanced reliability.
What package is UC3842ADW available in?
UC3842ADW comes in a 16-pin Small Outline (SOIC) package (JESD-30 code: R-PDSO-G16), which is RoHS compliant (Pb-free). This compact surface-mount package is well-suited for high-density PCB designs.
What are typical applications for UC3842ADW?
UC3842ADW is commonly used in offline flyback converters, forward converters, and DC-DC regulators for industrial power supplies, consumer electronics chargers, and battery management systems where stable PWM switching control is required.
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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+ | $1.2700 | $1.27 |
| 10+ | $0.9200 | $9.20 |
| 40+ | $0.8500 | $34.00 |
| 280+ | $0.8482 | $237.50 |
| 520+ | $0.8190 | $425.88 |
| 1000+ | $0.7721 | $772.10 |
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