Part Details for UCC3895DW by Unitrode Corporation
Results Overview of UCC3895DW by Unitrode Corporation
- Distributor Offerings: (4 listings)
- 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.
UCC3895DW Information
UCC3895DW by Unitrode Corporation 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 UCC3895DW
| Part # | Distributor | Description | Stock | Price | Buy | |
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DISTI #
1101439
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Farnell | PWM CONTROLLER, SMD, 3895, 20SOIC RoHS: Compliant Min Qty: 1 Lead time: 53 Weeks, 1 Days Container: Each | 0 |
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$4.9358 / $5.6409 | Buy Now |
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Quest Components | SWITCHING CONTROLLER, CURRENT-MODE, 0.1A, 1000KHZ SWITCHING FREQ-MAX, BICMOS, PDSO20 | 68 |
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$5.1476 / $8.3475 | Buy Now |
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Quest Components | SWITCHING CONTROLLER, CURRENT-MODE, 0.1A, 1000KHZ SWITCHING FREQ-MAX, BICMOS, PDSO20 | 45 |
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$4.1738 / $8.3475 | Buy Now |
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Vyrian | Other Function Semiconductors | 471 |
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RFQ |
Part Details for UCC3895DW
UCC3895DW CAD Models
UCC3895DW Part Data Attributes
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UCC3895DW
Unitrode Corporation
Buy Now
Datasheet
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UCC3895DW
Unitrode Corporation
Switching Controller, Voltage-mode, 0.1A, 1000kHz Switching Freq-Max, BICMOS, PDSO20, SOIC-20
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| Rohs Code | No | |
| Part Life Cycle Code | Transferred | |
| Ihs Manufacturer | UNITRODE CORP | |
| Package Description | SOIC-20 | |
| Reach Compliance Code | unknown | |
| Samacsys Manufacturer | UNITRODE | |
| Additional Feature | CONFIGURABLE CURRENT MODE OPERATION | |
| Analog IC - Other Type | SWITCHING CONTROLLER | |
| Control Mode | VOLTAGE-MODE | |
| Control Technique | PHASE-SHIFT CONTROL | |
| Input Voltage-Max | 17.5 V | |
| Input Voltage-Min | 9.8 V | |
| Input Voltage-Nom | 12 V | |
| JESD-30 Code | R-PDSO-G20 | |
| JESD-609 Code | e0 | |
| Number of Functions | 1 | |
| Number of Terminals | 20 | |
| Operating Temperature-Max | 70 °C | |
| Operating Temperature-Min | ||
| Output Current-Max | 0.1 A | |
| Package Body Material | PLASTIC/EPOXY | |
| Package Code | SOP | |
| Package Equivalence Code | SOP20,.4 | |
| Package Shape | RECTANGULAR | |
| Package Style | SMALL OUTLINE | |
| Qualification Status | Not Qualified | |
| Surface Mount | YES | |
| Switcher Configuration | PHASE-SHIFT | |
| Switching Frequency-Max | 1000 kHz | |
| Technology | BICMOS | |
| Temperature Grade | COMMERCIAL | |
| Terminal Finish | Tin/Lead (Sn/Pb) | |
| Terminal Form | GULL WING | |
| Terminal Pitch | 1.27 mm | |
| Terminal Position | DUAL |
Alternate Parts for UCC3895DW
This table gives cross-reference parts and alternative options found for UCC3895DW. 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 UCC3895DW, 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 |
|---|---|---|---|---|
| UCC3895DWTR | Unitrode Corporation | Check for Price | Switching Controller, Voltage-mode, 0.1A, 1000kHz Switching Freq-Max, BICMOS, PDSO20, SOIC-20 | UCC3895DW vs UCC3895DWTR |
| UCC2895DWTR | Unitrode Corp (RETIRED) | Check for Price | Switching Controller, Voltage-mode, 0.1A, 1000kHz Switching Freq-Max, BICMOS, PDSO20, SOIC-20 | UCC3895DW vs UCC2895DWTR |
| UCC2895DW | Unitrode Corporation | Check for Price | Switching Controller Voltage-mode 0.1A 1000kHz Switching Freq-Max BICMOS PDSO20 | UCC3895DW vs UCC2895DW |
| V62/06614-01XE | Texas Instruments | Check for Price | Enhanced Product Bicmos Advanced Phase Shift Pwm Controller 20-SOIC -55 to 125 | UCC3895DW vs V62/06614-01XE |
| UCC2895DW | Unitrode Corp (RETIRED) | Check for Price | Switching Controller, Voltage-mode, 0.1A, 1000kHz Switching Freq-Max, BICMOS, PDSO20, SOIC-20 | UCC3895DW vs UCC2895DW |
UCC3895DW Frequently Asked Questions (FAQ)
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A good PCB layout for the UCC3895DW involves keeping the high-frequency switching nodes (e.g., pins 3, 4, and 5) away from sensitive analog nodes, using a solid ground plane, and minimizing trace lengths and loop areas to reduce EMI.
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To ensure reliable startup, make sure the input voltage (VIN) rises monotonically and reaches the minimum startup voltage (typically 12V) within the recommended time (typically 10ms). Also, ensure that the soft-start capacitor (CSS) is properly sized and connected.
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The maximum allowable voltage on the VCC pin is 15V. Exceeding this voltage can damage the internal voltage regulator and affect the overall reliability of the device.
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The minimum value of CSS is determined by the required soft-start time, while the maximum value is limited by the maximum allowed voltage on the VCC pin. A good starting point is to use the formula: CSS = (VIN - VCC) / (ICharge * fSW), where ICharge is the charge current and fSW is the switching frequency.
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When selecting the output filter components, consider the desired output voltage ripple, output current, and switching frequency. A good starting point is to use the following guidelines: L >= (VIN - VOUT) / (ΔI * fSW), C >= (IOUT * ΔV) / (fSW * ΔI), and R = (VOUT - VIN) / IOUT, where ΔI is the inductor ripple current and ΔV is the output voltage ripple.