Part Details for UC2842D8G4 by Texas Instruments
Results Overview of UC2842D8G4 by Texas Instruments
- Distributor Offerings: (1 listing)
- Number of FFF Equivalents: (5 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
UC2842D8G4 Information
UC2842D8G4 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 UC2842D8G4
| Part # | Distributor | Description | Stock | Price | Buy | |
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DISTI #
595-UC2842D8G4
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Mouser Electronics | Switching Controllers Current-Mode PWM Con troller ALT 595-UC2842D8 RoHS: Compliant | 464 |
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$0.7080 / $2.6100 | Buy Now |
Part Details for UC2842D8G4
UC2842D8G4 CAD Models
UC2842D8G4 Part Data Attributes
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UC2842D8G4
Texas Instruments
Buy Now
Datasheet
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UC2842D8G4
Texas Instruments
30-V, 1-A, 500KHz current mode PWM controller with 16V/10V UVLO 100% duty cycle, -40C to 85C 8-SOIC -40 to 85
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| Pbfree Code | Yes | |
| Rohs Code | Yes | |
| Part Life Cycle Code | Active | |
| Ihs Manufacturer | TEXAS INSTRUMENTS INC | |
| Part Package Code | SOIC | |
| Package Description | GREEN, PLASTIC, MS-012AA, SOIC-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 | 28 V | |
| Input Voltage-Min | 11 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 | 85 °C | |
| Operating Temperature-Min | -40 °C | |
| Output Current-Max | 1 A | |
| 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 | |
| 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 | |
| Surface Mount | YES | |
| Switcher Configuration | BUCK-BOOST | |
| Switching Frequency-Max | 500 kHz | |
| Technology | BICMOS | |
| Temperature Grade | INDUSTRIAL | |
| 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 UC2842D8G4
This table gives cross-reference parts and alternative options found for UC2842D8G4. 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 UC2842D8G4, 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 |
|---|---|---|---|---|
| UC3842D8TR | Texas Instruments | $0.5226 | Single ended 500KHz current mode PWM controller with 16V/10V UVLO 100% duty cycle, 0C to 70C 8-SOIC 0 to 70 | UC2842D8G4 vs UC3842D8TR |
| UC3842D8 | Texas Instruments | $0.6548 | Single ended 500KHz current mode PWM controller with 16V/10V UVLO 100% duty cycle, 0C to 70C 8-SOIC 0 to 70 | UC2842D8G4 vs UC3842D8 |
| UC2842D8 | Texas Instruments | $0.7375 | 30-V, 1-A, 500KHz current mode PWM controller with 16V/10V UVLO 100% duty cycle, -40C to 85C 8-SOIC -40 to 85 | UC2842D8G4 vs UC2842D8 |
| UC3842D8G4 | Texas Instruments | Check for Price | Current-Mode PWM Controller 8-SOIC 0 to 70 | UC2842D8G4 vs UC3842D8G4 |
| UC2842D8TRG4 | Texas Instruments | Check for Price | Current-Mode PWM Controller 8-SOIC -40 to 85 | UC2842D8G4 vs UC2842D8TRG4 |
UC2842D8G4 Frequently Asked Questions (FAQ)
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The UC2842D8G4 is a high-frequency switching regulator, and as such, it requires careful PCB design and layout to minimize noise, EMI, and parasitic inductance. TI recommends using a 4-layer PCB with a solid ground plane, separating the high-current paths from the low-current paths, and using short, wide traces for the power lines. Additionally, it's essential to place the input and output capacitors close to the IC and use a common ground point for the input and output returns.
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Choosing the right inductor for the UC2842D8G4 involves considering factors such as inductance value, current rating, and core material. TI recommends using an inductor with a value between 1.5uH to 3.3uH, a current rating of at least 1.5 times the maximum output current, and a core material with low core loss at high frequencies, such as ferrite or powdered iron. Additionally, the inductor should be placed close to the IC and oriented to minimize magnetic coupling.
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The UC2842D8G4 is rated for a maximum output current of 2A, but this can be limited by the thermal performance of the IC and the PCB design. In practice, the maximum output current may be lower, depending on the specific application and operating conditions. It's essential to ensure that the IC and PCB are designed to handle the maximum expected output current and to provide adequate thermal management.
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The UC2842D8G4's voltage feedback loop requires compensation to ensure stability and prevent oscillation. TI recommends using a Type II compensation network, which consists of a series resistor and capacitor connected between the VFB pin and the output voltage. The values of these components depend on the specific application and operating conditions, but a good starting point is a 1kΩ resistor and a 10nF capacitor.
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The UC2842D8G4's soft-start pin (SS) allows the user to control the startup sequence of the converter. By connecting a capacitor from the SS pin to ground, the user can slow down the startup sequence and reduce the inrush current. The value of the capacitor depends on the specific application, but a good starting point is a 10nF capacitor. The soft-start feature helps to reduce the stress on the input power source and the converter itself during startup.