| Part Number | Manufacturer | Composite Price | Description | Compare |
|---|---|---|---|---|
| UC3842AD8TR | Texas Instruments | $0.4309 | Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, PDSO8 | UC3842AD8 vs UC3842AD8TR |
| UC1842AMDREP | Texas Instruments | $3.1205 | Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, PDSO8 | UC3842AD8 vs UC1842AMDREP |
| UC2842AD8TRG4 | Texas Instruments | Check for Price | Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, PDSO8 | UC3842AD8 vs UC2842AD8TRG4 |
| UC3842AD8TRG4 | Texas Instruments | Check for Price | Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, PDSO8 | UC3842AD8 vs UC3842AD8TRG4 |
| UC2842AD8G4 | Texas Instruments | Check for Price | Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, PDSO8 | UC3842AD8 vs UC2842AD8G4 |
| UC3842AD8G4 | Texas Instruments | Check for Price | Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, PDSO8 | UC3842AD8 vs UC3842AD8G4 |
Part Details for UC3842AD8 by Texas Instruments
Results Overview of UC3842AD8 by Texas Instruments
- Distributor Offerings: (2 listings)
- Number of FFF Equivalents: (6 replacements)
- Tariff Estimator: (Available) NEW
- Number of Functional Equivalents: (10 options)
- CAD Models: (Available)
- Part Data Attributes: (Available)
- Reference Designs: (Not Available)
Tip: Data for a part may vary between manufacturers. You can filter for manufacturers on the top of the page next to the part image and part number.
Applications
Consumer Electronics
Energy and Power Systems
Renewable Energy
UC3842AD8 Information
UC3842AD8 by Texas Instruments is a Switching Regulator or Controller.
Switching Regulator or Controllers are under the broader part category of Power Circuits.
A power circuit delivers electricity in order to operate a load for an electronic device. Power circuits include transformers, generators and switches. Read more about Power Circuits on our Power Circuits part category page.
Price & Stock for UC3842AD8
| Part # | Distributor | Description | Stock | Price | Buy | |
|---|---|---|---|---|---|---|
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Rochester Electronics | Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, PDSO8 RoHS: Compliant Status: Obsolete Min Qty: 1 | 5 |
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$0.5768 / $0.9303 | Buy Now |
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Chip Stock | IC REG CTRLR PWM CM 8SOIC Power Supply Controller PWM Controller 8-SOIC | 50664 |
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RFQ |
US Tariff Estimator: UC3842AD8 by Texas Instruments
Calculations from this tool are estimations only for imports into the United States. Please refer to the distributor or manufacturer and reference official US government sources and authorities to verify any final purchase costs.
UC3842AD8 CAD Models
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UC3842AD8 Part Data Attributes
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UC3842AD8
Texas Instruments
Buy Now
Datasheet
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UC3842AD8
Texas Instruments
Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, PDSO8
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| Rohs Code | Yes | |
| Part Life Cycle Code | Obsolete | |
| Part Package Code | SOIC | |
| Package Description | Soic-8 | |
| Pin Count | 8 | |
| ECCN Code | EAR99 | |
| HTS Code | 8542.39.00.60 | |
| Analog IC - Other Type | Switching Controller | |
| Control Mode | Current-Mode | |
| Control Technique | Pulse Width Modulation | |
| Input Voltage-Max | 28 V | |
| Input Voltage-Min | 11.5 V | |
| Input Voltage-Nom | 15 V | |
| JESD-30 Code | R-PDSO-G8 | |
| JESD-609 Code | e4 | |
| Length | 4.9 Mm | |
| Moisture Sensitivity Level | 1 | |
| Number of Functions | 1 | |
| Number of Terminals | 8 | |
| Operating Temperature-Max | 70 °C | |
| Operating Temperature-Min | ||
| Output Current-Max | 1 A | |
| Output Voltage-Max | 5.1 V | |
| Output Voltage-Min | 4.9 V | |
| Output Voltage-Nom | 5 V | |
| Package Body Material | Plastic/Epoxy | |
| Package Code | SOP | |
| Package Equivalence Code | SOP8,.25 | |
| Package Shape | Rectangular | |
| Package Style | Small Outline | |
| Packing Method | Tube | |
| Peak Reflow Temperature (Cel) | 260 | |
| Qualification Status | Not Qualified | |
| Seated Height-Max | 1.75 Mm | |
| Supply Current-Max (Isup) | 25 Ma | |
| Supply Voltage-Max (Vsup) | 28 V | |
| Supply Voltage-Min (Vsup) | 16 V | |
| Supply Voltage-Nom (Vsup) | 11 V | |
| Surface Mount | Yes | |
| Switcher Configuration | Buck-Boost | |
| Switching Frequency-Max | 500 Khz | |
| Technology | Bipolar | |
| Temperature Grade | Commercial | |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) | |
| Terminal Form | Gull Wing | |
| Terminal Pitch | 1.27 Mm | |
| Terminal Position | Dual | |
| Time@Peak Reflow Temperature-Max (s) | 30 | |
| Width | 3.9 Mm |
Alternate Parts for UC3842AD8
This table gives cross-reference parts and alternative options found for UC3842AD8. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of UC3842AD8, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.
UC3842AD8 Frequently Asked Questions (FAQ)
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The recommended operating voltage range for the UC3842AD8 is 12V to 28V, with a maximum rating of 30V.
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To ensure stable operation, ensure that the input voltage is within the recommended range, decouple the power supply with a 10uF capacitor, and use a minimum of 1kΩ impedance on the feedback pin.
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The maximum switching frequency of the UC3842AD8 is 400 kHz, but it can be adjusted using an external resistor and capacitor on the RT/CT pin.
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The output voltage of the UC3842AD8 can be adjusted by using a voltage divider network on the feedback pin, with the ratio of the resistors determining the output voltage.
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The soft-start pin is used to slowly ramp up the output voltage during startup, reducing inrush current and preventing voltage overshoot.