Part Details for UC1845AL883B by Texas Instruments
Results Overview of UC1845AL883B by Texas Instruments
- Distributor Offerings: (2 listings)
- Number of FFF Equivalents: (7 replacements)
- Tariff Estimator: (Available) NEW
- Number of Functional Equivalents: (10 options)
- CAD Models: (Request Part)
- 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.
UC1845AL883B Information
UC1845AL883B 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 UC1845AL883B
| Part # | Distributor | Description | Stock | Price | Buy | |
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Rochester Electronics | Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, CQCC20 RoHS: Not Compliant Status: Active Min Qty: 1 | 1 |
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$38.3700 / $47.9600 | Buy Now |
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Vyrian | Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, CQCC20 | 7336 |
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RFQ |
US Tariff Estimator: UC1845AL883B by Texas Instruments
Calculations from this tool are estimations only for imports into the United States. Please refer to the distributor or manufacturer and reference official US government sources and authorities to verify any final purchase costs.
Part Details for UC1845AL883B
UC1845AL883B Part Data Attributes
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UC1845AL883B
Texas Instruments
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Datasheet
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UC1845AL883B
Texas Instruments
Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, CQCC20
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| Pbfree Code | Yes | |
| Part Life Cycle Code | Active | |
| Part Package Code | QLCC | |
| Pin Count | 20 | |
| ECCN Code | EAR99 | |
| HTS Code | 8542.39.00.90 | |
| Analog IC - Other Type | Switching Controller | |
| Control Mode | Current-Mode | |
| Control Technique | Pulse Width Modulation | |
| Input Voltage-Max | 25 V | |
| Input Voltage-Min | 8.2 V | |
| Input Voltage-Nom | 15 V | |
| JESD-30 Code | S-CQCC-N20 | |
| JESD-609 Code | e0 | |
| Length | 8.89 Mm | |
| Number of Functions | 1 | |
| Number of Terminals | 20 | |
| Operating Temperature-Max | 125 °C | |
| Operating Temperature-Min | -55 °C | |
| Output Current-Max | 1 A | |
| Output Voltage-Max | 5.05 V | |
| Output Voltage-Min | 4.95 V | |
| Output Voltage-Nom | 5 V | |
| Package Body Material | Ceramic, Metal-Sealed Cofired | |
| Package Code | QCCN | |
| Package Equivalence Code | LCC20,.35SQ | |
| Package Shape | Square | |
| Package Style | Chip Carrier | |
| Qualification Status | Not Qualified | |
| Screening Level | Mil-Std-883 Class B | |
| Seated Height-Max | 2.03 Mm | |
| Supply Current-Max (Isup) | 25 Ma | |
| Supply Voltage-Max (Vsup) | 25 V | |
| Supply Voltage-Min (Vsup) | 12 V | |
| Supply Voltage-Nom (Vsup) | 11 V | |
| Surface Mount | Yes | |
| Switcher Configuration | Buck-Boost | |
| Switching Frequency-Max | 500 Khz | |
| Technology | Bipolar | |
| Temperature Grade | Military | |
| Terminal Finish | Tin/Lead (Sn/Pb) | |
| Terminal Form | No Lead | |
| Terminal Pitch | 1.27 Mm | |
| Terminal Position | Quad | |
| Width | 8.89 Mm |
Alternate Parts for UC1845AL883B
This table gives cross-reference parts and alternative options found for UC1845AL883B. 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 UC1845AL883B, 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 |
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| UC1845L883B | Texas Instruments | $21.3439 | Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BICMOS, CQCC20 | UC1845AL883B vs UC1845L883B |
| 5962-8670408XA | Unitrode Corporation | Check for Price | Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, CQCC20 | UC1845AL883B vs 5962-8670408XA |
| 5962-86704042A | Microchip Technology Inc | Check for Price | Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, CQCC20 | UC1845AL883B vs 5962-86704042A |
| SG1845L-TR/883B | Microchip Technology Inc | Check for Price | Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, CQCC20 | UC1845AL883B vs SG1845L-TR/883B |
| 5962-8670408VXX | Texas Instruments | Check for Price | Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, CQCC20 | UC1845AL883B vs 5962-8670408VXX |
| UC1845LQMLV | Texas Instruments | Check for Price | Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, CQCC20 | UC1845AL883B vs UC1845LQMLV |
| 5962-8670404V2A | Texas Instruments | Check for Price | Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, CQCC20 | UC1845AL883B vs 5962-8670404V2A |
UC1845AL883B Frequently Asked Questions (FAQ)
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A good PCB layout for the UC1845AL883B involves keeping the power traces short and wide, using a solid ground plane, and placing the input and output capacitors close to the IC. Additionally, it's recommended to use a shielded inductor and keep the feedback trace away from the power traces.
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The inductor value and type depend on the output voltage, current, and frequency of the converter. A good starting point is to use the inductor selection guide provided by Texas Instruments or to consult with an inductor manufacturer. Typically, a shielded inductor with a value between 10uH to 47uH is suitable for most applications.
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The UC1845AL883B is rated for operation from -40°C to 85°C. At higher temperatures, the device's performance may degrade, and the output voltage may drop. It's essential to ensure good airflow and heat dissipation in the system design to maintain reliable operation.
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To troubleshoot issues with the UC1845AL883B, start by checking the PCB layout, component values, and soldering quality. Use an oscilloscope to measure the output voltage, current, and feedback signals. Consult the datasheet and application notes for guidance on troubleshooting common issues.
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The UC1845AL883B is a commercial-grade device, but Texas Instruments offers automotive-grade and high-reliability versions of the device, such as the UC1845AL883Q or UC1845AL883BQ. These devices meet the relevant certifications, such as AEC-Q100, for use in automotive and high-reliability applications.