Part Details for UC2843AN by Texas Instruments
Results Overview of UC2843AN by Texas Instruments
- Distributor Offerings: (17 listings)
- Number of FFF Equivalents: (0 replacements)
- Tariff Estimator: (Available) NEW
- Number of Functional Equivalents: (10 options)
- CAD Models: (Available)
- 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.
Applications
Consumer Electronics
Energy and Power Systems
Renewable Energy
UC2843AN Information
UC2843AN 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 UC2843AN
| Part # | Distributor | Description | Stock | Price | Buy | |
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DISTI #
296-11179-5-ND
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DigiKey | IC REG CTRLR MULT TOPOLOGY 8DIP Min Qty: 1 Lead time: 6 Weeks Container: Tube |
1485 In Stock |
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$0.7899 / $1.6200 | Buy Now |
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DISTI #
595-UC2843AN
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Mouser Electronics | Switching Controllers Current Mode RoHS: Compliant | 1747 |
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$0.7890 / $1.6200 | Buy Now |
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DISTI #
J56:1989_00137008
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Arrow Electronics | Current Mode PWM Controller -0.1V to 11V 1A 500kHz 8-Pin PDIP Tube COO: Mexico RoHS: Compliant Min Qty: 50 Package Multiple: 50 Lead time: 6 Weeks Date Code: 2504 | Europe - 100 |
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$0.7255 / $0.9850 | Buy Now |
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DISTI #
V99:2348_07428057
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Arrow Electronics | Current Mode PWM Controller -0.1V to 11V 1A 500kHz 8-Pin PDIP Tube COO: Mexico RoHS: Compliant Min Qty: 1 Package Multiple: 1 Lead time: 6 Weeks Date Code: 2330 | Americas - 25 |
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$0.7255 / $1.5947 | Buy Now |
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DISTI #
89496952
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Verical | Current Mode PWM Controller -0.1V to 11V 1A 500kHz 8-Pin PDIP Tube RoHS: Compliant Min Qty: 8 Package Multiple: 1 Date Code: 2330 | Americas - 25 |
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$0.7255 / $1.5947 | Buy Now |
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Bristol Electronics | 120 |
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RFQ | ||
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Rochester Electronics | UC2843A Current Mode PWM Controller RoHS: Compliant Status: Active Min Qty: 1 | 7 |
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$0.6095 / $0.9831 | Buy Now |
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DISTI #
J56:1989_00137008
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Arrow Electronics | Current Mode PWM Controller -0.1V to 11V 1A 500kHz 8-Pin PDIP Tube COO: Mexico RoHS: Compliant Min Qty: 50 Package Multiple: 50 Lead time: 6 Weeks Date Code: 2504 | Europe - 100 |
|
$0.7255 / $0.9850 | Buy Now |
|
DISTI #
V99:2348_07428057
|
Arrow Electronics | Current Mode PWM Controller -0.1V to 11V 1A 500kHz 8-Pin PDIP Tube COO: Mexico RoHS: Compliant Min Qty: 1 Package Multiple: 1 Lead time: 6 Weeks Date Code: 2330 | Americas - 25 |
|
$0.7255 / $1.5947 | Buy Now |
|
DISTI #
89496952
|
Verical | Current Mode PWM Controller -0.1V to 11V 1A 500kHz 8-Pin PDIP Tube COO: Mexico RoHS: Compliant Min Qty: 8 Package Multiple: 1 Date Code: 2330 | Americas - 25 |
|
$0.7255 / $1.5947 | Buy Now |
US Tariff Estimator: UC2843AN 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 UC2843AN
UC2843AN CAD Models
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UC2843AN Part Data Attributes
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UC2843AN
Texas Instruments
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Datasheet
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UC2843AN
Texas Instruments
30-V, 1-A, 500KHz current mode PWM controller with 8.4V/7.6V UVLO 100% duty cycle 40°C to 85°C 8-PDIP -40 to 85
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| Pbfree Code | Yes | |
| Rohs Code | Yes | |
| Part Life Cycle Code | Active | |
| Part Package Code | DIP | |
| Package Description | Dip, Dip8,.3 | |
| Pin Count | 8 | |
| Reach Compliance Code | Compliant | |
| ECCN Code | EAR99 | |
| HTS Code | 8542.39.00.60 | |
| Analog IC - Other Type | Switching Controller | |
| Control Mode | Current-Mode | |
| Control Technique | Pulse Width Modulation | |
| Input Voltage-Max | 28 V | |
| Input Voltage-Min | 8.2 V | |
| Input Voltage-Nom | 15 V | |
| JESD-30 Code | R-PDIP-T8 | |
| JESD-609 Code | e4 | |
| Length | 9.81 Mm | |
| Number of Functions | 1 | |
| Number of Terminals | 8 | |
| Operating Temperature-Max | 85 °C | |
| Operating Temperature-Min | -40 °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 | Plastic/Epoxy | |
| Package Code | DIP | |
| Package Equivalence Code | DIP8,.3 | |
| Package Shape | Rectangular | |
| Package Style | In-Line | |
| Qualification Status | Not Qualified | |
| Seated Height-Max | 5.08 Mm | |
| Supply Current-Max (Isup) | 25 Ma | |
| Supply Voltage-Max (Vsup) | 28 V | |
| Supply Voltage-Min (Vsup) | 8.4 V | |
| Supply Voltage-Nom (Vsup) | 11 V | |
| Surface Mount | No | |
| Switcher Configuration | Buck-Boost | |
| Switching Frequency-Max | 500 Khz | |
| Technology | Bipolar | |
| Temperature Grade | Industrial | |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) | |
| Terminal Form | Through-Hole | |
| Terminal Pitch | 2.54 Mm | |
| Terminal Position | Dual | |
| Width | 7.62 Mm |
Alternate Parts for UC2843AN
This table gives cross-reference parts and alternative options found for UC2843AN. 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 UC2843AN, 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 |
|---|---|---|---|---|
| UC3843BN | STMicroelectronics | $0.4778 | Current Mode PWM | UC2843AN vs UC3843BN |
| UC2846DW | Texas Instruments | $1.8978 | Dual ended 500KHz current mode PWM controller, -40C to 85C 16-SOIC -40 to 85 | UC2843AN vs UC2846DW |
| UC2842AD | Unitrode Corporation | Check for Price | Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, PDSO14, SOIC-14 | UC2843AN vs UC2842AD |
| UC3846DWTR | Unitrode Corporation | Check for Price | Switching Controller, Current-mode, 0.5A, 500kHz Switching Freq-Max, BIPolar, PDSO16, SOIC-16 | UC2843AN vs UC3846DWTR |
| CS-3842AD14 | Cherry Semiconductor Corporation | Check for Price | Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, PDSO14, | UC2843AN vs CS-3842AD14 |
| V62/03625-03YE | Texas Instruments | Check for Price | Enhanced Product Current Mode Pwm Controller 8-SOIC -55 to 125 | UC2843AN vs V62/03625-03YE |
| V62/03625-04YE | Texas Instruments | Check for Price | Enhanced Product Current-Mode Pwm Controller 8-SOIC -55 to 125 | UC2843AN vs V62/03625-04YE |
| CS-3844D14 | Cherry Semiconductor Corporation | Check for Price | Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, PDSO14, | UC2843AN vs CS-3844D14 |
| UC2844DTR | Unitrode Corp (RETIRED) | Check for Price | Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, PDSO14, | UC2843AN vs UC2844DTR |
| UC3843BVDG | onsemi | Check for Price | High Performance Current Mode PWM Controller, SOIC-14 NB, 55-TUBE | UC2843AN vs UC3843BVDG |
UC2843AN Frequently Asked Questions (FAQ)
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The recommended input voltage range for the UC2843AN is 12V to 35V, although it can operate up to 40V with reduced performance.
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The inductor value depends on the output voltage, output current, and switching frequency. A good starting point is to use the inductor value calculation formula provided in the datasheet, and then adjust based on the specific application requirements.
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The soft-start pin (SS) is used to slowly ramp up the output voltage during startup to prevent inrush currents. Connect a capacitor from the SS pin to ground, and the IC will slowly charge the capacitor to control the output voltage rise time.
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The UC2843AN can be synchronized with an external clock signal by connecting the clock signal to the SYNC pin. The SYNC pin is sensitive to the rising edge of the clock signal, and the IC will synchronize its switching frequency to the external clock frequency.
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The maximum duty cycle of the UC2843AN is 90%. Exceeding this limit may cause instability or damage to the IC.