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Part Details for UC3845D8 by Texas Instruments
Results Overview of UC3845D8 by Texas Instruments
- Distributor Offerings: (7 listings)
- Number of FFF Equivalents: (2 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
UC3845D8 Information
UC3845D8 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 |
|---|---|---|---|
| UC3845D8G4 | Texas Instruments | Current-Mode PWM Controller 8-SOIC 0 to 70 | |
| UC3845D8 | Texas Instruments | Current-Mode PWM Controller 8-SOIC 0 to 70 | |
| UC3845D8TRG4 | Texas Instruments | Current-Mode PWM Controller 8-SOIC 0 to 70 |
Price & Stock for UC3845D8
| Part # | Distributor | Description | Stock | Price | Buy | |
|---|---|---|---|---|---|---|
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DISTI #
2156-UC3845D8-ND
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DigiKey | IC REG CTRLR MULT TOPOLOGY 8SOIC Min Qty: 1 Lead time: 6 Weeks Container: Bulk MARKETPLACE PRODUCT |
8475 In Stock |
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$0.8300 | Buy Now |
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DISTI #
296-11299-5-ND
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DigiKey | IC REG CTRLR MULT TOPOLOGY 8SOIC Min Qty: 1 Lead time: 6 Weeks Container: Tube |
49 In Stock |
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$0.7656 / $1.5200 | Buy Now |
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DISTI #
86041449
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Verical | Current Mode PWM Controller 200mA 500kHz 8-Pin SOIC Tube RoHS: Compliant Min Qty: 377 Package Multiple: 1 Date Code: 1101 | Americas - 7290 |
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$0.9950 | Buy Now |
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Bristol Electronics | 287 |
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RFQ | ||
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Rochester Electronics | UC3845 Current Mode PWM Controller RoHS: Compliant Status: Obsolete Min Qty: 1 | 7425 |
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$0.4935 / $0.7960 | Buy Now |
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Chip-Germany GmbH | RoHS: Not Compliant | 73 |
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RFQ | |
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Cytech Systems Limited | IC REG CTRLR MULT TOPOLOGY 8SOIC | 7500 |
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RFQ |
Part Details for UC3845D8
UC3845D8 CAD Models
UC3845D8 Part Data Attributes
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UC3845D8
Texas Instruments
Buy Now
Datasheet
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Compare Parts:
UC3845D8
Texas Instruments
Single ended 500KHz current mode PWM controller with 8.4V/7.6V UVLO 50% duty cycle, 0C to 70C 8-SOIC 0 to 70
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| Rohs Code | No | |
| Part Life Cycle Code | Obsolete | |
| Ihs Manufacturer | TEXAS INSTRUMENTS INC | |
| Part Package Code | SOIC | |
| Package Description | GREEN, PLASTIC, MS-012AA, 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-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 | |
| Surface Mount | YES | |
| Switcher Configuration | BUCK-BOOST | |
| Switching Frequency-Max | 500 kHz | |
| Technology | BICMOS | |
| 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) | NOT SPECIFIED | |
| Width | 3.9 mm |
Alternate Parts for UC3845D8
This table gives cross-reference parts and alternative options found for UC3845D8. 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 UC3845D8, 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 |
|---|---|---|---|---|
| UC3845D8TRG4 | Texas Instruments | Check for Price | Single ended 500KHz current mode PWM controller with 8.4V/7.6V UVLO 50% duty cycle, 0C to 70C 8-SOIC 0 to 70 | UC3845D8 vs UC3845D8TRG4 |
| UC3845D8G4 | Texas Instruments | Check for Price | Single ended 500KHz current mode PWM controller with 8.4V/7.6V UVLO 50% duty cycle, 0C to 70C 8-SOIC 0 to 70 | UC3845D8 vs UC3845D8G4 |
UC3845D8 Frequently Asked Questions (FAQ)
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The maximum operating frequency of UC3845D8 is 500 kHz. However, the recommended operating frequency is up to 400 kHz for optimal performance.
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The minimum input voltage is typically 8.5V, and the maximum input voltage is 18V. However, the recommended input voltage range is 12V to 15V for optimal performance.
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The soft-start pin (SS) is used to control the output voltage ramp-up time during power-up. It helps to prevent output voltage overshoot and reduces the inrush current.
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The output voltage of UC3845D8 is set by the voltage divider network connected to the feedback pin (FB). The output voltage is determined by the ratio of the resistors in the voltage divider network.
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The maximum output current of UC3845D8 is 1A. However, the recommended output current is up to 500mA for optimal performance and to prevent overheating.