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Part Details for UC3844AN by Texas Instruments
Results Overview of UC3844AN by Texas Instruments
- Distributor Offerings: (9 listings)
- Number of FFF Equivalents: (0 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
UC3844AN Information
UC3844AN 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 |
|---|---|---|---|
| UC3844ANG4 | Texas Instruments | Current Mode PWM Controller 8-PDIP 0 to 70 | |
| UC3844AN | Texas Instruments | Current Mode PWM Controller 8-PDIP 0 to 70 |
Price & Stock for UC3844AN
| Part # | Distributor | Description | Stock | Price | Buy | |
|---|---|---|---|---|---|---|
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DISTI #
28AH6384
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Newark | Advanced Pwm Controller, 3844, Dip8, Input Voltage:15V, Output Voltage:5V, Output Current:200Ma, Supply Voltage Min:12V, Supply Voltage Max:25V, Controller Ic Case Style:Dip, No. Of Pins:8Pins, Frequency:500Khz, Operating Temperaturerohs Compliant: Yes |Texas Instruments UC3844AN RoHS: Compliant Min Qty: 1 Package Multiple: 1 Date Code: 1 Container: Bulk | 687 |
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$1.2600 / $1.7400 | Buy Now |
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DISTI #
296-11291-5-ND
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DigiKey | IC REG CTRLR PWM CM 8DIP Min Qty: 1 Lead time: 12 Weeks Container: Tube |
988 In Stock |
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$0.6481 / $1.3500 | Buy Now |
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DISTI #
595-UC3844AN
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Mouser Electronics | Switching Controllers Current Mode RoHS: Compliant | 492 |
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$0.6290 / $1.3500 | Buy Now |
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DISTI #
J56:1989_00023559
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Arrow Electronics | Current Mode PWM Controller -0.1V to 11V 1A 500kHz 8-Pin PDIP Tube RoHS: Compliant Min Qty: 50 Package Multiple: 50 Lead time: 12 Weeks Date Code: 2236 | Europe - 100 |
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$0.5942 / $0.8095 | Buy Now |
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Bristol Electronics | Min Qty: 3 | 126 |
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$0.6328 / $1.6875 | Buy Now |
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Quest Components | IC,SMPS CONTROLLER,CURRENT-MODE,BIPOLAR,DIP,8PIN,PLASTIC | 100 |
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$0.6750 / $2.2500 | Buy Now |
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Rochester Electronics | UC3844A Current Mode PWM Controller RoHS: Compliant Status: Active Min Qty: 1 | 123 |
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$0.4966 / $0.8010 | Buy Now |
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DISTI #
UC3844AN
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TME | IC: PMIC, PWM controller, 1A, 47÷500kHz, Ch: 1, DIP8, 16÷30V, 0÷48% Min Qty: 1 | 874 |
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$0.7000 / $1.2800 | Buy Now |
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New Advantage Corporation | IC REG CTRLR PWM CM 8DIP RoHS: Compliant Min Qty: 1 Package Multiple: 100 | 628 |
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$1.6100 / $1.7400 | Buy Now |
Part Details for UC3844AN
UC3844AN CAD Models
UC3844AN Part Data Attributes
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UC3844AN
Texas Instruments
Buy Now
Datasheet
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Compare Parts:
UC3844AN
Texas Instruments
30-V, 1A, 500KHz current mode PWM controller with 16V/10V UVLO 50% duty cycle, 0°C to 70°C 8-PDIP 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 | DIP | |
| Package Description | GREEN, PLASTIC, DIP-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 | 11.5 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 | 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 | 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) | 16 V | |
| Supply Voltage-Nom (Vsup) | 11 V | |
| Surface Mount | NO | |
| Switcher Configuration | BUCK-BOOST | |
| Switching Frequency-Max | 500 kHz | |
| Technology | BIPOLAR | |
| Temperature Grade | COMMERCIAL | |
| 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 UC3844AN
This table gives cross-reference parts and alternative options found for UC3844AN. 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 UC3844AN, 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 |
|---|---|---|---|---|
| UC2842BD1 | Motorola Mobility LLC | Check for Price | 1A SWITCHING CONTROLLER, 500kHz SWITCHING FREQ-MAX, PDSO8, PLASTIC, SO-8 | UC3844AN vs UC2842BD1 |
| UC2842BD1R2 | Motorola Mobility LLC | Check for Price | 1A SWITCHING CONTROLLER, 500kHz SWITCHING FREQ-MAX, PDSO8, PLASTIC, SO-8 | UC3844AN vs UC2842BD1R2 |
| UC3846DWTR | Unitrode Corporation | Check for Price | Switching Controller, Current-mode, 0.5A, 500kHz Switching Freq-Max, BIPolar, PDSO16, SOIC-16 | UC3844AN vs UC3846DWTR |
| UC2842D8 | Texas Instruments | $0.7375 | 30-V, 1-A, 500KHz current mode PWM controller with 16V/10V UVLO 100% duty cycle, -40C to 85C 8-SOIC -40 to 85 | UC3844AN vs UC2842D8 |
| UC2842BD1013TR | STMicroelectronics | $0.3867 | Current Mode PWM | UC3844AN vs UC2842BD1013TR |
| UC1844LQMLV | Texas Instruments | Check for Price | 1A SWITCHING CONTROLLER, 500kHz SWITCHING FREQ-MAX, CQCC20, CERAMIC, LCC-20 | UC3844AN vs UC1844LQMLV |
| UC2845NG | onsemi | Check for Price | 1A SWITCHING CONTROLLER, 500kHz SWITCHING FREQ-MAX, PDIP8, LEAD FREE, PLASTIC, DIP-8 | UC3844AN vs UC2845NG |
| SG2843DM | Microchip Technology Inc | Check for Price | Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, PDSO8 | UC3844AN vs SG2843DM |
| SG2844DM | Microsemi Corporation | Check for Price | Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, PDSO8, ROHS COMPLIANT, PLASTIC, SOIC-8 | UC3844AN vs SG2844DM |
| UC3844DTRG4 | Texas Instruments | Check for Price | Single ended 500KHz current mode PWM controller with 16V/10V UVLO 50% duty cycle, 0C to 70C 14-SOIC 0 to 70 | UC3844AN vs UC3844DTRG4 |
UC3844AN Frequently Asked Questions (FAQ)
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The maximum operating frequency of UC3844AN is 500 kHz. However, it's recommended to operate it at a frequency between 100 kHz to 400 kHz for optimal performance.
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The minimum input voltage is typically 8.5V, and the maximum input voltage is 35V. However, it's recommended to operate it within 12V to 25V for optimal performance. You can use the formula: Vin(min) = 2.5V + (Vout / R1) * R2, where R1 and R2 are the feedback resistors.
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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. It's recommended to connect a capacitor (typically 10nF to 100nF) between the SS pin and ground to set the soft-start time.
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The feedback resistors (R1 and R2) set the output voltage of the converter. A common ratio for R1 and R2 is 1:2 or 1:3. You can use the formula: R1 = R2 * (Vout - Vref) / Vref, where Vref is the internal reference voltage (typically 2.5V).
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The undervoltage lockout (UVLO) is a protection feature that prevents the converter from operating below a certain input voltage threshold (typically 8.5V). This ensures that the converter operates within a safe input voltage range and prevents damage to the device.