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Part Details for UC2844AD by Texas Instruments
Results Overview of UC2844AD by Texas Instruments
- Distributor Offerings: (7 listings)
- Number of FFF Equivalents: (5 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
Industrial Automation
Renewable Energy
UC2844AD Information
UC2844AD 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 UC2844AD
| Part # | Distributor | Description | Stock | Price | Buy | |
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DISTI #
3123501
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Farnell | IC, CURRENT MODE PWM CTRL, SOIC-14 RoHS: Compliant Min Qty: 1 Lead time: 53 Weeks, 2 Days Container: Each | 463 |
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$0.5151 / $0.6730 | Buy Now |
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DISTI #
V99:2348_07428077
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Arrow Electronics | Current Mode PWM Controller -0.1V to 11V 1A 500kHz 14-Pin SOIC Tube RoHS: Compliant Min Qty: 1 Package Multiple: 1 Lead time: 6 Weeks Date Code: 2033 | Americas - 284 |
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$0.1530 / $0.1586 | Buy Now |
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DISTI #
86047949
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Verical | Current Mode PWM Controller -0.1V to 11V 1A 500kHz 14-Pin SOIC Tube RoHS: Compliant Min Qty: 430 Package Multiple: 1 Date Code: 1101 | Americas - 16800 |
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$0.8721 | Buy Now |
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DISTI #
88046303
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Verical | Current Mode PWM Controller -0.1V to 11V 1A 500kHz 14-Pin SOIC Tube RoHS: Compliant Min Qty: 430 Package Multiple: 1 Date Code: 1401 | Americas - 550 |
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$0.8721 | Buy Now |
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DISTI #
53427595
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Verical | Current Mode PWM Controller -0.1V to 11V 1A 500kHz 14-Pin SOIC Tube RoHS: Compliant Min Qty: 37 Package Multiple: 1 Date Code: 2033 | Americas - 284 |
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$0.1530 / $0.1558 | Buy Now |
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Bristol Electronics | 23 |
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RFQ | ||
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Rochester Electronics | UC2844A Current Mode PWM Controller RoHS: Compliant Status: Obsolete Min Qty: 1 | 17350 |
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$0.4326 / $0.6977 | Buy Now |
Part Details for UC2844AD
UC2844AD CAD Models
UC2844AD Part Data Attributes
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UC2844AD
Texas Instruments
Buy Now
Datasheet
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Compare Parts:
UC2844AD
Texas Instruments
30-V, 1A, 500KHz current mode PWM controller with 16V/10V UVLO 50% duty cycle, 40°C to 85°C 14-SOIC -40 to 85
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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, SOIC-14 | |
| Pin Count | 14 | |
| 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 | 11 V | |
| Input Voltage-Nom | 15 V | |
| JESD-30 Code | R-PDSO-G14 | |
| JESD-609 Code | e4 | |
| Length | 8.65 mm | |
| Moisture Sensitivity Level | 1 | |
| Number of Functions | 1 | |
| Number of Terminals | 14 | |
| 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 | SOP | |
| Package Equivalence Code | SOP14,.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) | 16 V | |
| Supply Voltage-Nom (Vsup) | 11 V | |
| Surface Mount | YES | |
| Switcher Configuration | BUCK-BOOST | |
| Switching Frequency-Max | 500 kHz | |
| Technology | BIPOLAR | |
| Temperature Grade | INDUSTRIAL | |
| 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 UC2844AD
This table gives cross-reference parts and alternative options found for UC2844AD. 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 UC2844AD, 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 |
|---|---|---|---|---|
| UC3844ADTR | Texas Instruments | $0.4309 | 30-V, 1A, 500KHz current mode PWM controller with 16V/10V UVLO 50% duty cycle, 0°C to 70°C 14-SOIC 0 to 70 | UC2844AD vs UC3844ADTR |
| UC3844AD | Texas Instruments | $0.6417 | 30-V, 1A, 500KHz current mode PWM controller with 16V/10V UVLO 50% duty cycle, 0°C to 70°C 14-SOIC 0 to 70 | UC2844AD vs UC3844AD |
| UC2844ADTRG4 | Texas Instruments | Check for Price | Current Mode PWM Controller 14-SOIC -40 to 85 | UC2844AD vs UC2844ADTRG4 |
| UC3844ADG4 | Texas Instruments | Check for Price | Current Mode PWM Controller 14-SOIC 0 to 70 | UC2844AD vs UC3844ADG4 |
| UC3844ADTRG4 | Texas Instruments | Check for Price | 30-V, 1A, 500KHz current mode PWM controller with 16V/10V UVLO 50% duty cycle, 0°C to 70°C 14-SOIC 0 to 70 | UC2844AD vs UC3844ADTRG4 |
UC2844AD Frequently Asked Questions (FAQ)
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The recommended input voltage range for the UC2844AD 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 UC2844AD 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 UC2844AD is 90%. Exceeding this limit may cause instability or damage to the IC.