UC3844BNAlternatives & Equivalent Parts
About UC3844BN
UC3844BN is a Integrated Circuit component manufactured by STMicroelectronics. It comes in a Dual-In-Line 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 | UC3844BNSource | UC3844AN | UC2844BN | UC3842BN | UC3843N | UC3843AN | ADUM2250ARIZ | CFR200J100R | UC3844BNG |
|---|---|---|---|---|---|---|---|---|---|
| Manufacturer | STMicroelectronics | Texas Instruments | STMicroelectronics | STMicroelectronics | Texas Instruments | Texas Instruments | Analog Devices | TE Connectivity | ON Semiconductor |
| Package Type | Dual-In-Line Packages | Dual-In-Line Packages | Dual-In-Line Packages | Dual-In-Line Packages | Dual-In-Line Packages | Dual-In-Line Packages | Small Outline Packages | Resistors, Axial Diameter Horizontal Mounting | Dual-In-Line Packages |
| Pin Count | 8 | 8 | 8 | 8 | 8 | 8 | 16 | 2 | 8 |
| Temperature Range | ~ 70.0°C | ~ 70.0°C | -25.0°C ~ 85.0°C | ~ 70.0°C | ~ 70.0°C | ~ 70.0°C | -40.0°C ~ 105.0°C | -55.0°C ~ 155.0°C | ~ 70.0°C |
| Price | $0.2472 | $0.4160 | $0.4492 | $0.2268 | $0.4260 | $0.3403 | $4.2400 | $0.0521 | $0.2784 |
| Stock | In Stock | In Stock | In Stock | In Stock | In Stock | In Stock | In Stock | In Stock | In Stock |
| Lifecycle | ACTIVE | ACTIVE | ACTIVE | ACTIVE | ACTIVE | ACTIVE | ACTIVE | ACTIVE | ACTIVE |
| Electrical Parameters | |||||||||
| Factory Lead Time | 14 Weeks | — | 14 Weeks | 14 Weeks | — | — | — | — | 14 Weeks |
| YTEOL | 6 | 15 | 6 | 6 | 15 | 15 | 10 | 7 | 5 |
| Analog IC - Other Type | SWITCHING CONTROLLER | SWITCHING CONTROLLER | SWITCHING CONTROLLER | SWITCHING CONTROLLER | SWITCHING CONTROLLER | SWITCHING CONTROLLER | — | — | SWITCHING CONTROLLER |
| Control Mode | CURRENT-MODE | CURRENT-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 | PULSE WIDTH MODULATION | — | — | PULSE WIDTH MODULATION |
| Input Voltage-Max | 30 V | 28 V | 30 V | 30 V | 28 V | 28 V | — | — | 25 V |
| Input Voltage-Min | 11.5 V | 11.5 V | 11 V | 11.5 V | 8.2 V | 8.2 V | — | — | 12 V |
| Input Voltage-Nom | 15 V | 15 V | 15 V | 15 V | 15 V | 15 V | — | — | 15 V |
| JESD-30 Code | R-PDIP-T8 | R-PDIP-T8 | R-PDIP-T8 | R-PDIP-T8 | R-PDIP-T8 | R-PDIP-T8 | R-PDSO-G16 | — | R-PDIP-T8 |
| JESD-609 Code | e4 | e4 | e3 | e3 | e4 | e4 | e3 | e3 | e3 |
| Number of Functions | 1 | 1 | 1 | 1 | 1 | 1 | 2 | — | 1 |
| Output Current-Max | 1 A | 1 A | 1 A | 1 A | 1 A | 1 A | — | — | 1 A |
| Package Body Material | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | — | PLASTIC/EPOXY |
| Package Equivalence Code | DIP8,.3 | DIP8,.3 | DIP8,.3 | DIP8,.3 | DIP8,.3 | DIP8,.3 | SOP16,.4 | — | DIP8,.3 |
| Package Shape | RECTANGULAR | RECTANGULAR | RECTANGULAR | RECTANGULAR | RECTANGULAR | RECTANGULAR | RECTANGULAR | TUBULAR PACKAGE | RECTANGULAR |
| Package Style | IN-LINE | IN-LINE | IN-LINE | IN-LINE | IN-LINE | IN-LINE | SMALL OUTLINE | Axial | IN-LINE |
| Qualification Status | Not Qualified | Not Qualified | Not Qualified | Not Qualified | Not Qualified | Not Qualified | — | — | Not Qualified |
| Surface Mount | NO | NO | NO | NO | NO | NO | YES | NO | NO |
| Switcher Configuration | SINGLE | BUCK-BOOST | SINGLE | SINGLE | BUCK-BOOST | BUCK-BOOST | — | — | SINGLE |
| Switching Frequency-Max | 500 kHz | 500 kHz | 500 kHz | 500 kHz | 500 kHz | 500 kHz | — | — | 275 kHz |
| Technology | BIPOLAR | BIPOLAR | BIPOLAR | BIPOLAR | BICMOS | BIPOLAR | — | THIN FILM | BIPOLAR |
| Temperature Grade | COMMERCIAL | COMMERCIAL | COMMERCIAL EXTENDED | COMMERCIAL | COMMERCIAL | COMMERCIAL | INDUSTRIAL | — | COMMERCIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) | Nickel/Palladium/Gold (Ni/Pd/Au) | Matte Tin (Sn) | Matte Tin (Sn) - annealed | Nickel/Palladium/Gold (Ni/Pd/Au) | Nickel/Palladium/Gold (Ni/Pd/Au) | Matte Tin (Sn) - annealed | Tin (Sn) | MATTE TIN |
| Terminal Form | THROUGH-HOLE | THROUGH-HOLE | THROUGH-HOLE | THROUGH-HOLE | THROUGH-HOLE | THROUGH-HOLE | GULL WING | — | THROUGH-HOLE |
| Terminal Pitch | 2.54 mm | 2.54 mm | 2.54 mm | 2.54 mm | 2.54 mm | 2.54 mm | 1.27 mm | — | 2.54 mm |
| Terminal Position | DUAL | DUAL | DUAL | DUAL | DUAL | DUAL | DUAL | — | DUAL |
| ## UC3844BN Alternates Showing results | Image | — | — | — | — | — | — | — | — |
| Pbfree Code | — | Yes | — | — | Yes | Yes | No | Yes | Yes |
| Output Voltage-Max | — | 5.1 V | — | — | — | 5.1 V | — | — | — |
| Output Voltage-Min | — | 4.9 V | — | — | — | 4.9 V | — | — | — |
| Output Voltage-Nom | — | 5 V | — | — | 5 V | 5 V | — | — | — |
| Supply Current-Max (Isup) | — | 25 mA | — | — | 25 mA | 25 mA | — | — | 17 mA |
| Supply Voltage-Max (Vsup) | — | 28 V | — | — | 28 V | 28 V | — | — | — |
| Supply Voltage-Min (Vsup) | — | 16 V | — | — | 8.4 V | 8.4 V | — | — | — |
| Supply Voltage-Nom (Vsup) | — | 11 V | — | — | — | 11 V | — | — | — |
| ## UC3844AN Alternates Showing results | — | Image | — | — | — | — | — | — | — |
| ## UC2844BN Alternates Showing results | — | — | Image | — | — | — | — | — | — |
| Peak Reflow Temperature (Cel) | — | — | — | NOT SPECIFIED | — | — | 260 | — | — |
| Time@Peak Reflow Temperature-Max (s) | — | — | — | NOT SPECIFIED | — | — | 30 | — | — |
| ## UC3842BN Alternates Showing results | — | — | — | Image | — | — | — | — | — |
| ## UC3843N Alternates Showing results | — | — | — | — | Image | — | — | — | — |
| ## UC3843AN Alternates Showing results | — | — | — | — | — | Image | — | — | — |
| Source Url Status Check Date | — | — | — | — | — | — | 2013-05-01 14:56:50.298 | — | — |
| Manufacturer Package Code | — | — | — | — | — | — | RI-16-1 | — | 626-05 |
| Additional Feature | — | — | — | — | — | — | ALSO REQUIRED SUPPLY VOLTAGE OF 3V TO 5.5V FOR PORTB | — | — |
| Interface IC Type | — | — | — | — | — | — | DIGITAL ISOLATOR | — | — |
| Supply Voltage-Max | — | — | — | — | — | — | 5.5 V | — | — |
| Supply Voltage-Min | — | — | — | — | — | — | 3 V | — | — |
| Supply Voltage-Nom | — | — | — | — | — | — | 5 V | — | — |
| ## ADUM2250ARIZ Alternates Showing results | — | — | — | — | — | — | Image | — | — |
| Reach Compliance Code | — | — | — | — | — | — | — | Compliant | — |
| Construction | — | — | — | — | — | — | — | Tubular | — |
| Lead Diameter | — | — | — | — | — | — | — | 0.7 mm | — |
| Lead Length | — | — | — | — | — | — | — | 28 mm | — |
| Mounting Feature | — | — | — | — | — | — | — | THROUGH HOLE MOUNT | — |
| Package Diameter | — | — | — | — | — | — | — | 5.5 mm | — |
| Package Length | — | — | — | — | — | — | — | 16 mm | — |
| Packing Method | — | — | — | — | — | — | — | AMMO PACK | — |
| Physical Dimension | — | — | — | — | — | — | — | 16mm x 5.5mm | — |
| Rated Power Dissipation (P) | — | — | — | — | — | — | — | 2 W | — |
| Rated Temperature | — | — | — | — | — | — | — | 70 °C | — |
| Resistance | — | — | — | — | — | — | — | 100 Ω | — |
| Resistor Type | — | — | — | — | — | — | — | FIXED RESISTOR | — |
| Temperature Coefficient | — | — | — | — | — | — | — | -450, 0 ppm/°C | — |
| Terminal Shape | — | — | — | — | — | — | — | WIRE | — |
| Tolerance | — | — | — | — | — | — | — | 5% | — |
| Working Voltage | — | — | — | — | — | — | — | 500 V | — |
| Configuration Features: Number of Resistors 1 | — | — | — | — | — | — | — | Dimensions: Passive Component Dimensions 16 x 5.5 MM | — |
| Resistance Class Up to 1kΩ | — | — | — | — | — | — | — | Resistance Value 100 OHM | — |
| Operating Voltage 500 V | — | — | — | — | — | — | — | Packaging Features: Packaging Method Ammo Packed | — |
| Resistor Type General Purpose Resistor | — | — | — | — | — | — | — | Element Type Carbon Film | — |
Cells highlighted in yellow indicate differing values across parts. Always verify with official datasheets before substitution.
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Get one quote covering all 8 alternatives for UC3844BN — response within 24 hours.
Quick Links
Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, PDIP8
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Why Look for Alternatives?
Finding alternatives for UC3844BN 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 UC3844BN 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 UC3844BN?
Known equivalents for UC3844BN include UC3844AN, UC2844BN, UC3842BN. Contact FindMyChip for a full compatibility analysis for your specific application.
Can I use a different manufacturer's part instead of UC3844BN?
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 UC3844BN 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.