UC3844BD1Alternatives & Equivalent Parts
About UC3844BD1
UC3844BD1 is a Integrated Circuit component manufactured by STMicroelectronics. It comes in a Small Outline Packages package. Below you'll find known alternative and equivalent parts that can serve as replacements in your design.
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Specification Comparison
| Parameter | UC3844BD1Source | UC3844BDG | UC3844BNG | R79IC3100Z340J | UC3844BD1R2G | UC3844BD1013TR |
|---|---|---|---|---|---|---|
| Manufacturer | STMicroelectronics | ON Semiconductor | ON Semiconductor | Kemet | ON Semiconductor | STMicroelectronics |
| Package Type | Small Outline Packages | Small Outline Packages | Dual-In-Line Packages | Other | Small Outline Packages | Small Outline Packages |
| Pin Count | 8 | 14 | 8 | 2 | 8 | 8 |
| Temperature Range | ~ 70.0°C | ~ 70.0°C | ~ 70.0°C | — | ~ 70.0°C | ~ 70.0°C |
| Price | $0.3032 | $0.2470 | $0.2784 | $0.3530 | $0.2286 | $0.2378 |
| Stock | In Stock | In Stock | In Stock | In Stock | In Stock | In Stock |
| Lifecycle | ACTIVE | OBSOLETE | ACTIVE | ACTIVE | ACTIVE | ACTIVE |
| Electrical Parameters | ||||||
| YTEOL | 7 | 0 | 5 | — | 6 | 7 |
| Analog IC - Other Type | SWITCHING CONTROLLER | SWITCHING CONTROLLER | SWITCHING CONTROLLER | — | SWITCHING CONTROLLER | SWITCHING CONTROLLER |
| Control Mode | CURRENT-MODE | CURRENT-MODE | CURRENT-MODE | — | CURRENT-MODE | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION | PULSE WIDTH MODULATION | PULSE WIDTH MODULATION | — | PULSE WIDTH MODULATION | PULSE WIDTH MODULATION |
| Input Voltage-Max | 30 V | 25 V | 25 V | — | 25 V | 30 V |
| Input Voltage-Min | 11.5 V | 12 V | 12 V | — | 12 V | 11.5 V |
| Input Voltage-Nom | 15 V | 15 V | 15 V | — | 15 V | 15 V |
| JESD-30 Code | R-PDSO-G8 | R-PDSO-G14 | R-PDIP-T8 | — | R-PDSO-G8 | R-PDSO-G8 |
| JESD-609 Code | e4 | e3 | e3 | — | e3 | e4 |
| Number of Functions | 1 | 1 | 1 | — | 1 | 1 |
| Output Current-Max | 1 A | 1 A | 1 A | — | 1 A | 1 A |
| Package Body Material | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | — | PLASTIC/EPOXY | PLASTIC/EPOXY |
| Package Equivalence Code | SOP8,.25 | SOP14,.25 | DIP8,.3 | — | SOP8,.25 | SOP8,.25 |
| Package Shape | RECTANGULAR | RECTANGULAR | RECTANGULAR | — | RECTANGULAR | RECTANGULAR |
| Package Style | SMALL OUTLINE | SMALL OUTLINE | IN-LINE | — | SMALL OUTLINE | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | NOT SPECIFIED | 260 | — | — | 260 | 260 |
| Qualification Status | Not Qualified | Not Qualified | Not Qualified | — | Not Qualified | Not Qualified |
| Surface Mount | YES | YES | NO | — | YES | YES |
| Switcher Configuration | SINGLE | SINGLE | SINGLE | — | SINGLE | SINGLE |
| Switching Frequency-Max | 500 kHz | 275 kHz | 275 kHz | — | 275 kHz | 500 kHz |
| Technology | BIPOLAR | BIPOLAR | BIPOLAR | — | BIPOLAR | BIPOLAR |
| Temperature Grade | COMMERCIAL | COMMERCIAL | COMMERCIAL | — | COMMERCIAL | COMMERCIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) | Matte Tin (Sn) - annealed | MATTE TIN | — | Matte Tin (Sn) - annealed | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING | GULL WING | THROUGH-HOLE | — | GULL WING | GULL WING |
| Terminal Pitch | 1.27 mm | 1.27 mm | 2.54 mm | — | 1.27 mm | 1.27 mm |
| Terminal Position | DUAL | DUAL | DUAL | — | DUAL | DUAL |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED | 40 | — | — | 30 | 30 |
| ## UC3844BD1 Alternates Showing results | Image | — | — | — | — | — |
| Pbfree Code | — | Yes | Yes | — | Yes | — |
| Manufacturer Package Code | — | 751A-03 | 626-05 | — | 751-07 | — |
| Supply Current-Max (Isup) | — | 17 mA | 17 mA | — | 17 mA | — |
| Factory Lead Time | — | — | 14 Weeks | — | 18 Weeks | 14 Weeks |
Cells highlighted in yellow indicate differing values across parts. Always verify with official datasheets before substitution.
Need pricing on these alternatives?
Get one quote covering all 5 alternatives for UC3844BD1 — response within 24 hours.
Quick Links
suggested
Switching Controller, Current-mode, 1A, 275kHz Switching Freq-Max, BIPolar, PDSO8
Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, PDSO8
Why Look for Alternatives?
Finding alternatives for UC3844BD1 is essential for supply chain resilience. Component shortages, long lead times, and end-of-life notices can disrupt production schedules. Having verified alternative parts ensures your designs remain manufacturable.
When evaluating UC3844BD1 replacements, consider key parameters such as package compatibility, electrical specifications, and operating temperature range. Our engineering team can help verify pin-to-pin compatibility for your specific application.
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FAQ
What is equivalent to UC3844BD1?
Known equivalents for UC3844BD1 include UC3844BDG, UC3844BNG, R79IC3100Z340J. Contact FindMyChip for a full compatibility analysis for your specific application.
Can I use a different manufacturer's part instead of UC3844BD1?
In many cases, yes. Cross-manufacturer alternatives exist for most standard components. However, always verify pin compatibility, electrical specs, and package dimensions before substituting in production.
How do I verify UC3844BD1 alternatives?
Compare the datasheet specifications including pinout, voltage ratings, timing parameters, and package dimensions. FindMyChip's engineering team can help with compatibility verification — submit an RFQ to get started.