Part Details for UC1865J by Texas Instruments
Results Overview of UC1865J by Texas Instruments
- Distributor Offerings: (3 listings)
- Number of FFF Equivalents: (4 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.
UC1865J Information
UC1865J 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 UC1865J
| Part # | Distributor | Description | Stock | Price | Buy | |
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DISTI #
86147731
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Verical | Voltage Mode PWM Controller 500mA 550kHz 16-Pin CDIP Min Qty: 25 Package Multiple: 1 Date Code: 9801 | Americas - 66 |
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$43.7250 / $54.6500 | Buy Now |
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Rochester Electronics | Switching Controller, Voltage-mode, 1.5A, 1000kHz Switching Freq-Max, BIPolar, CDIP16 RoHS: Not Compliant Status: Obsolete Min Qty: 1 | 66 |
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$34.9800 / $43.7200 | Buy Now |
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Vyrian | Switching Controller, Voltage-mode, 1.5A, 1000kHz Switching Freq-Max, BIPolar, CDIP16 | 6320 |
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RFQ |
US Tariff Estimator: UC1865J 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 UC1865J
UC1865J Part Data Attributes
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UC1865J
Texas Instruments
Buy Now
Datasheet
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Compare Parts:
UC1865J
Texas Instruments
Switching Controller, Voltage-mode, 1.5A, 1000kHz Switching Freq-Max, BIPolar, CDIP16
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| Pbfree Code | No | |
| Part Life Cycle Code | Obsolete | |
| Part Package Code | DIP | |
| Package Description | Ceramic, Dip-16 | |
| Pin Count | 16 | |
| ECCN Code | EAR99 | |
| HTS Code | 8542.39.00.60 | |
| Analog IC - Other Type | Switching Controller | |
| Control Mode | Voltage-Mode | |
| Control Technique | Resonant Control | |
| Input Voltage-Max | 20 V | |
| Input Voltage-Min | 11.5 V | |
| Input Voltage-Nom | 12 V | |
| JESD-30 Code | R-GDIP-T16 | |
| Length | 21.34 Mm | |
| Number of Functions | 1 | |
| Number of Terminals | 16 | |
| Operating Temperature-Max | 125 °C | |
| Operating Temperature-Min | -55 °C | |
| Output Current-Max | 1.5 A | |
| Package Body Material | Ceramic, Glass-Sealed | |
| Package Code | DIP | |
| Package Equivalence Code | DIP16,.3 | |
| Package Shape | Rectangular | |
| Package Style | In-Line | |
| Peak Reflow Temperature (Cel) | Not Specified | |
| Qualification Status | Not Qualified | |
| Seated Height-Max | 5.08 Mm | |
| Surface Mount | No | |
| Switcher Configuration | Push-Pull | |
| Switching Frequency-Max | 1000 Khz | |
| Technology | Bipolar | |
| Temperature Grade | Military | |
| Terminal Form | Through-Hole | |
| Terminal Pitch | 2.54 Mm | |
| Terminal Position | Dual | |
| Time@Peak Reflow Temperature-Max (s) | Not Specified | |
| Width | 7.62 Mm |
Alternate Parts for UC1865J
This table gives cross-reference parts and alternative options found for UC1865J. 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 UC1865J, 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 |
|---|---|---|---|---|
| 5962-9203102MEX | Texas Instruments | Check for Price | Switching Controller, Voltage-mode, 0.1A, 300kHz Switching Freq-Max, BICMOS, CDIP16 | UC1865J vs 5962-9203102MEX |
| UC3865J | Texas Instruments | Check for Price | Switching Controller, Current-mode, 1.5A, 1000kHz Switching Freq-Max, BIPolar, CDIP16 | UC1865J vs UC3865J |
| UC1865J | Rochester Electronics LLC | Check for Price | 1.5A SWITCHING CONTROLLER, 1000kHz SWITCHING FREQ-MAX, CDIP16, CERAMIC, DIP-16 | UC1865J vs UC1865J |
| 5962-9203102MEA | Texas Instruments | Check for Price | Switching Controller, Voltage-mode, 1.5A, 1000kHz Switching Freq-Max, CDIP16 | UC1865J vs 5962-9203102MEA |
UC1865J Frequently Asked Questions (FAQ)
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The UC1865J is a high-frequency switching regulator, and proper layout and placement are crucial for its operation. TI recommends a 4-layer PCB with a solid ground plane, and the IC should be placed close to the input capacitors. The output inductor and diode should be placed close to the IC, and the output capacitor should be placed close to the load. A good rule of thumb is to keep the high-current paths short and wide, and to minimize the loop area of the switching node.
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The input capacitor should be chosen based on the input voltage, output current, and switching frequency. A low-ESR capacitor with a high ripple current rating is recommended. TI recommends a minimum capacitance of 10uF, but a larger capacitor may be needed for high-input voltage or high-output current applications. The capacitor should also be placed close to the IC to minimize the input voltage ripple.
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The UC1865J is rated for a maximum output current of 5A, but the actual output current capability depends on the input voltage, output voltage, and switching frequency. The IC can handle higher output currents with proper heat sinking and thermal management. However, it's recommended to derate the output current by 10-20% to ensure reliable operation.
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The output voltage of the UC1865J can be adjusted by changing the feedback resistors R1 and R2. The output voltage is determined by the ratio of R1 to R2, and the recommended values are provided in the datasheet. However, the actual output voltage may vary depending on the input voltage, output current, and temperature. It's recommended to use a voltage divider with a low impedance to minimize the output voltage ripple.
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The bootstrap capacitor is used to generate the gate drive voltage for the internal power MOSFET. The capacitor is charged from the input voltage during the off-time of the MOSFET, and it provides the necessary voltage to drive the MOSFET during the on-time. The recommended value for the bootstrap capacitor is 10nF to 100nF, and it should be placed close to the IC to minimize the parasitic inductance.