UC3843ADTRG4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The UC3843ADTRG4 is a current-mode PWM controller IC from Texas Instruments, supporting input voltages from 8.2V to 25V with pulse width modulation control technique. It features a 14-pin SOIC package and is ideal for switch-mode power supply designs. Available from stock worldwide with competitive pricing.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 14
- Lifecycle
- OBSOLETE
- Datasheet
- UC3843ADTRG4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Current-mode PWM control for improved line regulation and inherent pulse-by-pulse current limiting
- Wide input voltage range of 8.2V to 25V supporting diverse power supply topologies
- Single-function 14-pin SOIC package optimized for compact switch-mode power supply designs
Applications
The UC3843ADTRG4 is widely used in switch-mode power supplies (SMPS) for industrial and consumer electronics applications. It is well-suited for flyback, forward, and boost converter topologies where precise current-mode control is required. This device is commonly found in battery chargers, DC-DC converters, and power management systems requiring reliable PWM regulation.
Specifications
| YTEOL | 0 |
| Analog IC - Other Type | SWITCHING CONTROLLER |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 25V |
| Input Voltage-Min | 8.2V |
| Input Voltage-Nom | 15V |
| JESD-30 Code | R-PDSO-G14 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| Output Current-Max | 1A |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP14,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Current-Max (Isup) | 17mA |
| Supply Voltage-Nom (Vsup) | 11V |
| Surface Mount | YES |
| Switcher Configuration | SINGLE |
| Switching Frequency-Max | 500kHz |
| Technology | BIPOLAR |
| Temperature Grade | COMMERCIAL |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| 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 | 8542.39.00.60 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the input voltage range of the UC3843ADTRG4?
The UC3843ADTRG4 operates with an input voltage range from 8.2V minimum to 25V maximum, with a nominal operating voltage of 15V, making it suitable for a wide range of switch-mode power supply designs.
What control mode does the UC3843ADTRG4 use?
The UC3843ADTRG4 uses current-mode control with pulse width modulation (PWM) technique, which provides inherent pulse-by-pulse current limiting and improved line transient response compared to voltage-mode controllers.
What package type is the UC3843ADTRG4 available in?
The UC3843ADTRG4 is available in a 14-pin Small Outline IC (SOIC) package, conforming to JESD-30 code R-PDSO-G14, making it suitable for compact PCB designs in industrial power supply applications.
What are typical applications for the UC3843ADTRG4?
The UC3843ADTRG4 is commonly used in flyback converters, forward converters, boost converters, battery chargers, and DC-DC power modules where current-mode PWM control with input voltages up to 25V is required.
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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.
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