Part Details for UC2841DW by Texas Instruments
Results Overview of UC2841DW by Texas Instruments
- Distributor Offerings: (9 listings)
- Number of FFF Equivalents: (0 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.
UC2841DW Information
UC2841DW 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 UC2841DW
| Part # | Distributor | Description | Stock | Price | Buy | |
|---|---|---|---|---|---|---|
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DISTI #
2156-UC2841DW-ND
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DigiKey | IC REG CTRLR MULT TOP 18SOIC Min Qty: 1 Lead time: 6 Weeks Container: Bulk MARKETPLACE PRODUCT |
3698 In Stock |
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$12.9400 | Buy Now |
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DISTI #
296-34715-5-ND
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DigiKey | IC REG CTRLR MULT TOP 18SOIC Min Qty: 1 Lead time: 6 Weeks Container: Tube |
60 In Stock |
|
$13.0343 / $20.0800 | Buy Now |
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DISTI #
595-UC2841DW
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Mouser Electronics | Switching Controllers Prog Off-Line PWM Co ntroller RoHS: Compliant | 2 |
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$13.0300 / $20.0800 | Buy Now |
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DISTI #
86292315
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Verical | Current Mode PWM Controller 1A 500kHz 18-Pin SOIC Tube RoHS: Compliant Min Qty: 25 Package Multiple: 1 Date Code: 0501 | Americas - 2401 |
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$12.4375 / $15.5500 | Buy Now |
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DISTI #
86297941
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Verical | Current Mode PWM Controller 1A 500kHz 18-Pin SOIC Tube RoHS: Compliant Min Qty: 25 Package Multiple: 1 Date Code: 0601 | Americas - 712 |
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$12.4375 / $15.5500 | Buy Now |
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DISTI #
86293767
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Verical | Current Mode PWM Controller 1A 500kHz 18-Pin SOIC Tube RoHS: Compliant Min Qty: 25 Package Multiple: 1 Date Code: 1301 | Americas - 395 |
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$12.4375 / $15.5500 | Buy Now |
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DISTI #
86294100
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Verical | Current Mode PWM Controller 1A 500kHz 18-Pin SOIC Tube RoHS: Compliant Min Qty: 25 Package Multiple: 1 | Americas - 80 |
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$12.4375 / $15.5500 | Buy Now |
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Bristol Electronics | 13 |
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RFQ | ||
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Rochester Electronics | UC2841 Programmable, Off-Line, PWM Controller RoHS: Compliant Status: Active Min Qty: 1 | 3698 |
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$9.9500 / $12.4400 | Buy Now |
Part Details for UC2841DW
UC2841DW CAD Models
UC2841DW Part Data Attributes
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UC2841DW
Texas Instruments
Buy Now
Datasheet
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Compare Parts:
UC2841DW
Texas Instruments
32-V, 1-A , 0.5MHz off-line PWM controller , -20C to 85C 18-SOIC -20 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 | SOIC-18 | |
| Pin Count | 18 | |
| Reach Compliance Code | compliant | |
| ECCN Code | EAR99 | |
| HTS Code | 8542.39.00.01 | |
| Samacsys Manufacturer | Texas Instruments | |
| Additional Feature | CURRENT MODE OPERATION IS ALSO POSSIBLE | |
| Analog IC - Other Type | SWITCHING CONTROLLER | |
| Control Mode | CURRENT-MODE | |
| Control Technique | PULSE WIDTH MODULATION | |
| Input Voltage-Max | 32 V | |
| Input Voltage-Min | 8 V | |
| Input Voltage-Nom | 20 V | |
| JESD-30 Code | R-PDSO-G18 | |
| JESD-609 Code | e4 | |
| Length | 11.55 mm | |
| Moisture Sensitivity Level | 2 | |
| Number of Functions | 1 | |
| Number of Terminals | 18 | |
| Operating Temperature-Max | 85 °C | |
| Operating Temperature-Min | -20 °C | |
| Output Current-Max | 1 A | |
| Package Body Material | PLASTIC/EPOXY | |
| Package Code | SOP | |
| Package Equivalence Code | SOP18,.4 | |
| Package Shape | RECTANGULAR | |
| Package Style | SMALL OUTLINE | |
| Peak Reflow Temperature (Cel) | 260 | |
| Qualification Status | Not Qualified | |
| Seated Height-Max | 2.65 mm | |
| Supply Voltage-Max (Vsup) | 32 V | |
| Supply Voltage-Min (Vsup) | 8 V | |
| Surface Mount | YES | |
| Switcher Configuration | BUCK-BOOST | |
| Switching Frequency-Max | 500 kHz | |
| Technology | BICMOS | |
| Temperature Grade | OTHER | |
| 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 | 7.5 mm |
Alternate Parts for UC2841DW
This table gives cross-reference parts and alternative options found for UC2841DW. 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 UC2841DW, 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 |
|---|---|---|---|---|
| UC2841DW | Rochester Electronics LLC | Check for Price | 1A SWITCHING CONTROLLER, 500kHz SWITCHING FREQ-MAX, PDSO18, GREEN, SOIC-18 | UC2841DW vs UC2841DW |
| UC2851DWTR | Texas Instruments | Check for Price | 0.4A SWITCHING CONTROLLER, 500kHz SWITCHING FREQ-MAX, PDSO18, GREEN, SOIC-18 | UC2841DW vs UC2851DWTR |
| UC3841DWTRG4 | Texas Instruments | Check for Price | IC 1 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO18, GREEN, SOIC-18, Switching Regulator or Controller | UC2841DW vs UC3841DWTRG4 |
| UC3841DWTR | Unitrode Corp (RETIRED) | Check for Price | Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, PDSO18, | UC2841DW vs UC3841DWTR |
| UC3841DWTR | Unitrode Corporation | Check for Price | Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, PDSO18, | UC2841DW vs UC3841DWTR |
| UC3851DWTR | Rochester Electronics LLC | Check for Price | 0.4A SWITCHING CONTROLLER, 500kHz SWITCHING FREQ-MAX, PDSO18, GREEN, SOIC-18 | UC2841DW vs UC3851DWTR |
| UC2841DWG4 | Texas Instruments | Check for Price | Programmable, Off-Line, PWM Controller 18-SOIC -20 to 85 | UC2841DW vs UC2841DWG4 |
| UC3851DWTR | Unitrode Corp (RETIRED) | Check for Price | Switching Controller, Current-mode, 500kHz Switching Freq-Max, BIPolar, PDSO18, | UC2841DW vs UC3851DWTR |
| UC3841DWTR | Texas Instruments | Check for Price | 1A SWITCHING CONTROLLER, 500kHz SWITCHING FREQ-MAX, PDSO18, GREEN, SOIC-18 | UC2841DW vs UC3841DWTR |
| UC3851DW | Texas Instruments | Check for Price | Programmable off-line PWM controller 18-SOIC 0 to 70 | UC2841DW vs UC3851DW |
UC2841DW Frequently Asked Questions (FAQ)
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The recommended input voltage range for the UC2841DW is 12V to 35V, although it can operate up to 40V with reduced performance.
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The inductor value depends on the output voltage, output current, and switching frequency. A good starting point is to use the inductor value calculation formula provided in the datasheet, and then adjust based on the specific design requirements.
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The soft-start pin (SS) is used to slowly ramp up the output voltage during startup to prevent inrush currents. Connect a capacitor from the SS pin to ground, and the IC will slowly charge the capacitor to control the output voltage rise time.
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The UC2841DW can be synchronized with an external clock signal by connecting the clock signal to the SYNC pin. The SYNC pin is sensitive to the rising edge of the clock signal, and the IC will synchronize its switching frequency to the external clock frequency.
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The maximum duty cycle of the UC2841DW is 90%. Exceeding this limit may cause instability or damage to the IC.