UC1843AMDREP Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
UC1843AMDREP is a current-mode PWM controller IC from Texas Instruments designed for high-reliability applications. It features a 25V max input voltage, pulse width modulation control technique, and current-mode operation for precise power regulation. From $4.56, in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- UC1843AMDREP Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $4.5630(MOQ 1)
- Temp Range
- -55.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of UC1843AMDREP?
- Current-mode PWM control for superior line and load transient response
- Wide input voltage range of 12V to 25V supports diverse power supply designs
- Enhanced product (EP) grade for extended reliability and longevity in demanding applications
- Pulse Width Modulation technique ensures precise duty cycle control and efficiency
- Available in compact SOIC-8 (R-PDSO-G8) package for space-constrained designs
What is UC1843AMDREP used for?
The UC1843AMDREP is well suited for industrial and military-grade switching power supplies where long-term reliability is critical. It is commonly used in DC-DC converters, flyback regulators, and forward converter topologies operating from 12V to 25V rails. Its current-mode control architecture also makes it an excellent choice for motor drive pre-regulators and telecom power systems requiring tight output regulation.
What are the specifications of UC1843AMDREP?
| Pbfree Code | Yes |
| YTEOL | 15 |
| Analog IC - Other Type | SWITCHING CONTROLLER |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 25V |
| Input Voltage-Min | 12V |
| Input Voltage-Nom | 15V |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| Output Current-Max | 1A |
| Output Voltage-Max | 5.05V |
| Output Voltage-Min | 4.95V |
| Output Voltage-Nom | 5V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP8,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Current-Max (Isup) | 17mA |
| Supply Voltage-Max (Vsup) | 25V |
| Supply Voltage-Min (Vsup) | 12V |
| Surface Mount | YES |
| Switcher Configuration | BUCK-BOOST |
| Switching Frequency-Max | 500kHz |
| Technology | BIPOLAR |
| Temperature Grade | MILITARY |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
| Country of Origin | Malaysia |
Where can I find the UC1843AMDREP datasheet?
UC1843AMDREP Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for UC1843AMDREP?
Compatible alternatives and drop-in replacements for UC1843AMDREP:
Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, PDSO8
Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, PDSO8
Frequently Asked Questions
What is the input voltage range of the UC1843AMDREP?
The UC1843AMDREP operates over an input voltage range of 12V (minimum) to 25V (maximum), with a nominal operating voltage of 15V. This range makes it suitable for a wide variety of industrial and telecom power supply applications.
What control mode does the UC1843AMDREP use?
The UC1843AMDREP uses current-mode control combined with pulse width modulation (PWM). Current-mode control provides inherent cycle-by-cycle current limiting, improved transient response, and simplified loop compensation compared to voltage-mode PWM controllers.
What package is the UC1843AMDREP available in?
The UC1843AMDREP is available in a Small Outline Package (SOIC-8, JESD-30 code R-PDSO-G8). This compact 8-pin package is lead-free (Pbfree code: Yes) and suitable for surface-mount assembly on standard PCBs.
What makes the UC1843AMDREP an 'Enhanced Product'?
The 'Enhanced Product' (EP) designation indicates that the UC1843AMDREP meets Texas Instruments' higher reliability standards, including extended product lifecycle support (YTEOL: 15 years). It is designed for applications in industrial, aerospace, and defense sectors that demand long-term availability and consistent performance.
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Why Buy from FindMyChip
About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
More from Texas Instruments
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $6.4320 | $6.43 |
| 10+ | $5.6290 | $56.29 |
| 25+ | $4.5630 | $114.07 |
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