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Part Details for UC3845AD8TR by Texas Instruments
Results Overview of UC3845AD8TR by Texas Instruments
- Distributor Offerings: (6 listings)
- Number of FFF Equivalents: (3 replacements)
- CAD Models: (Available)
- Number of Functional Equivalents: (10 options)
- 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
UC3845AD8TR Information
UC3845AD8TR 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.
Available Datasheets
| Part # | Manufacturer | Description | Datasheet |
|---|---|---|---|
| UC3845AD8TR | Texas Instruments | Current Mode PWM Controller 8-SOIC 0 to 70 | |
| UC3845AD8TRG4 | Texas Instruments | Current Mode PWM Controller 8-SOIC 0 to 70 |
Price & Stock for UC3845AD8TR
| Part # | Distributor | Description | Stock | Price | Buy | |
|---|---|---|---|---|---|---|
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DISTI #
296-27153-1-ND
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DigiKey | IC REG CTRLR MULT TOPOLOGY 8SOIC Min Qty: 1 Lead time: 6 Weeks Container: Digi-Reel®, Tape & Reel (TR), Cut Tape (CT) |
6332 In Stock |
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$0.3372 / $0.7800 | Buy Now |
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DISTI #
595-UC3845AD8TR
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Mouser Electronics | Switching Controllers Current-Mode PWM Con troller A 595-UC3845AD8 RoHS: Compliant | 4474 |
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$0.3310 / $0.7800 | Buy Now |
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Ameya Holding Limited | IC REG CTRLR PWM CM 8SOIC | 122980 |
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RFQ | |
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Chip-Germany GmbH | RoHS: Not Compliant | 9 |
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RFQ | |
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LCSC | 7.6V30V SOIC-8 AC-DC Controllers and Regulators ROHS | 196 |
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$0.5266 / $0.5570 | Buy Now |
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Win Source Electronics | Current Mode PWM Controller 5V 1A 500kHz 8-Pin SOIC T/R / IC REG CTRLR MULT TOPOLOGY 8SOIC | 18390 |
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$0.3021 / $0.3902 | Buy Now |
Part Details for UC3845AD8TR
UC3845AD8TR CAD Models
UC3845AD8TR Part Data Attributes
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UC3845AD8TR
Texas Instruments
Buy Now
Datasheet
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Compare Parts:
UC3845AD8TR
Texas Instruments
30V,1A, 500KHz current mode PWM controller with 8.4V/7.6V UVLO 50% duty cycle, 0°C to 70°C 8-SOIC 0 to 70
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| Pbfree Code | Yes | |
| Rohs Code | Yes | |
| Part Life Cycle Code | Active | |
| Ihs Manufacturer | TEXAS INSTRUMENTS INC | |
| Part Package Code | SOIC | |
| Package Description | GREEN, PLASTIC, SOIC-8 | |
| Pin Count | 8 | |
| Reach Compliance Code | compliant | |
| ECCN Code | EAR99 | |
| HTS Code | 8542.39.00.01 | |
| Samacsys Manufacturer | Texas Instruments | |
| 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-PDSO-G8 | |
| JESD-609 Code | e4 | |
| Length | 4.9 mm | |
| Moisture Sensitivity Level | 1 | |
| Number of Functions | 1 | |
| Number of Terminals | 8 | |
| Operating Temperature-Max | 70 °C | |
| Operating Temperature-Min | ||
| Output Current-Max | 1 A | |
| Output Voltage-Max | 5.1 V | |
| Output Voltage-Min | 4.9 V | |
| Output Voltage-Nom | 5 V | |
| Package Body Material | PLASTIC/EPOXY | |
| Package Code | SOP | |
| Package Equivalence Code | SOP8,.25 | |
| Package Shape | RECTANGULAR | |
| Package Style | SMALL OUTLINE | |
| Peak Reflow Temperature (Cel) | 260 | |
| Qualification Status | Not Qualified | |
| Seated Height-Max | 1.75 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 | YES | |
| Switcher Configuration | BUCK-BOOST | |
| Switching Frequency-Max | 500 kHz | |
| Technology | BIPOLAR | |
| Temperature Grade | COMMERCIAL | |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) | |
| Terminal Form | GULL WING | |
| Terminal Pitch | 1.27 mm | |
| Terminal Position | DUAL | |
| Time@Peak Reflow Temperature-Max (s) | 30 | |
| Width | 3.9 mm |
Alternate Parts for UC3845AD8TR
This table gives cross-reference parts and alternative options found for UC3845AD8TR. 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 UC3845AD8TR, 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 |
|---|---|---|---|---|
| UC3845AD8 | Texas Instruments | $0.6517 | 30V,1A, 500KHz current mode PWM controller with 8.4V/7.6V UVLO 50% duty cycle, 0°C to 70°C 8-SOIC 0 to 70 | UC3845AD8TR vs UC3845AD8 |
| UC3845AD8TRG4 | Texas Instruments | Check for Price | 30V,1A, 500KHz current mode PWM controller with 8.4V/7.6V UVLO 50% duty cycle, 0°C to 70°C 8-SOIC 0 to 70 | UC3845AD8TR vs UC3845AD8TRG4 |
| UC3845AD8G4 | Texas Instruments | Check for Price | 30V,1A, 500KHz current mode PWM controller with 8.4V/7.6V UVLO 50% duty cycle, 0°C to 70°C 8-SOIC 0 to 70 | UC3845AD8TR vs UC3845AD8G4 |
UC3845AD8TR Frequently Asked Questions (FAQ)
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The recommended operating voltage range for the UC3845AD8TR is 12V to 28V, with a maximum rating of 30V.
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To ensure stable operation, ensure that the input voltage is within the recommended range, decouple the power supply with a 10uF capacitor, and use a minimum of 1kΩ pull-up resistor on the feedback pin.
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The maximum switching frequency of the UC3845AD8TR is 400kHz, but it can be adjusted using an external resistor and capacitor on the RT/CT pin.
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The output voltage of the UC3845AD8TR can be calculated using the formula: Vout = (R2/R1) * (Vref), where R1 and R2 are the feedback resistors, and Vref is the internal reference voltage (5V).
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The soft-start pin (SS) is used to slowly ramp up the output voltage during startup, reducing inrush current and preventing voltage overshoots.