Part Details for UC3842AD1 by STMicroelectronics
Results Overview of UC3842AD1 by STMicroelectronics
- Distributor Offerings: (2 listings)
- Number of FFF Equivalents: (10 replacements)
- CAD Models: (Request Part)
- Number of Functional Equivalents: (10 options)
- 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
UC3842AD1 Information
UC3842AD1 by STMicroelectronics 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 UC3842AD1
| Part # | Distributor | Description | Stock | Price | Buy | |
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Bristol Electronics | Min Qty: 4 | 100 |
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$0.6033 / $1.6087 | Buy Now |
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Quest Components | 80 |
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$0.6435 / $2.1450 | Buy Now |
Part Details for UC3842AD1
UC3842AD1 CAD Models
UC3842AD1 Part Data Attributes
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UC3842AD1
STMicroelectronics
Buy Now
Datasheet
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Compare Parts:
UC3842AD1
STMicroelectronics
1A SWITCHING CONTROLLER, 500kHz SWITCHING FREQ-MAX, PDSO8, SO-8
Select a part to compare: |
| Rohs Code | Yes | |
| Part Life Cycle Code | Obsolete | |
| Ihs Manufacturer | STMICROELECTRONICS | |
| Part Package Code | SOIC | |
| Package Description | SO-8 | |
| Pin Count | 8 | |
| Reach Compliance Code | compliant | |
| ECCN Code | EAR99 | |
| HTS Code | 8542.39.00.01 | |
| Analog IC - Other Type | SWITCHING CONTROLLER | |
| Control Mode | CURRENT-MODE | |
| Control Technique | PULSE WIDTH MODULATION | |
| Input Voltage-Max | 30 V | |
| Input Voltage-Min | 11.5 V | |
| Input Voltage-Nom | 15 V | |
| JESD-30 Code | R-PDSO-G8 | |
| JESD-609 Code | e0 | |
| Length | 4.9 mm | |
| Number of Functions | 1 | |
| Number of Terminals | 8 | |
| Operating Temperature-Max | 70 °C | |
| Operating Temperature-Min | ||
| Output Current-Max | 1 A | |
| Package Body Material | PLASTIC/EPOXY | |
| Package Code | SOP | |
| Package Equivalence Code | SOP8,.25 | |
| Package Shape | RECTANGULAR | |
| Package Style | SMALL OUTLINE | |
| Qualification Status | Not Qualified | |
| Seated Height-Max | 1.75 mm | |
| Surface Mount | YES | |
| Switcher Configuration | BUCK-BOOST | |
| Switching Frequency-Max | 500 kHz | |
| Technology | BIPOLAR | |
| Temperature Grade | COMMERCIAL | |
| Terminal Finish | TIN LEAD | |
| Terminal Form | GULL WING | |
| Terminal Pitch | 1.27 mm | |
| Terminal Position | DUAL | |
| Width | 3.9 mm |
Alternate Parts for UC3842AD1
This table gives cross-reference parts and alternative options found for UC3842AD1. 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 UC3842AD1, 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.
| Part Number | Manufacturer | Composite Price | Description | Compare |
|---|---|---|---|---|
| UC2842BD1 | STMicroelectronics | Check for Price | Current Mode PWM | UC3842AD1 vs UC2842BD1 |
| UC2842BD1R2 | Motorola Semiconductor Products | Check for Price | Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, PDSO8, PLASTIC, SO-8 | UC3842AD1 vs UC2842BD1R2 |
| UC2842BD1 | Motorola Semiconductor Products | Check for Price | Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, PDSO8, PLASTIC, SO-8 | UC3842AD1 vs UC2842BD1 |
| UC3842BD1R2 | Motorola Semiconductor Products | Check for Price | Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, PDSO8, PLASTIC, SO-8 | UC3842AD1 vs UC3842BD1R2 |
| UC3842BD1 | Motorola Mobility LLC | Check for Price | 1A SWITCHING CONTROLLER, 500kHz SWITCHING FREQ-MAX, PDSO8, PLASTIC, SO-8 | UC3842AD1 vs UC3842BD1 |
| UC2842BD1R2 | Motorola Mobility LLC | Check for Price | 1A SWITCHING CONTROLLER, 500kHz SWITCHING FREQ-MAX, PDSO8, PLASTIC, SO-8 | UC3842AD1 vs UC2842BD1R2 |
| LT1242IS8 | Linear Technology | Check for Price | LT1242 - High Speed Current Mode Pulse Width Modulators; Package: SO; Pins: 8; Temperature Range: -40°C to 85°C | UC3842AD1 vs LT1242IS8 |
| LT1242IS8#PBF | Linear Technology | Check for Price | LT1242 - High Speed Current Mode Pulse Width Modulators; Package: SO; Pins: 8; Temperature Range: -40°C to 85°C | UC3842AD1 vs LT1242IS8#PBF |
| E-UC2842BD1 | STMicroelectronics | Check for Price | Current Mode PWM | UC3842AD1 vs E-UC2842BD1 |
| UC3842BD1 | onsemi | Check for Price | 1A SWITCHING CONTROLLER, 500kHz SWITCHING FREQ-MAX, PDSO8, PLASTIC, SOIC-8 | UC3842AD1 vs UC3842BD1 |
UC3842AD1 Frequently Asked Questions (FAQ)
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The recommended operating voltage range for UC3842AD1 is 12V to 28V, with a maximum rating of 30V.
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The switching frequency of UC3842AD1 can be calculated using the formula: f = 1 / (RT * CT), where RT is the resistance of the timing resistor and CT is the capacitance of the timing capacitor.
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The soft-start pin (SS) in UC3842AD1 is used to gradually increase the output voltage during startup, reducing the inrush current and preventing voltage overshoots.
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Overcurrent protection can be implemented using the current sense pin (CS) and an external resistor. The voltage on the CS pin is proportional to the output current, and by comparing it to a reference voltage, you can detect overcurrent conditions and shut down the converter.
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The maximum output current that UC3842AD1 can handle depends on the specific application and the external components used. However, the datasheet recommends a maximum output current of 1.5A.