UC2845D8TRG4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The UC2845D8TRG4 is a current-mode PWM switching controller from Texas Instruments in an 8-pin SOIC package. It operates from 7.6 V to 28 V input with a nominal 15 V supply, featuring cycle-by-cycle current limiting and programmable oscillator frequency. Available with worldwide shipping from authorized distributors.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- UC2845D8TRG4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Current-mode PWM control with cycle-by-cycle overcurrent protection for fast fault response in switching power supply designs
- Wide input voltage range of 7.6 V to 28 V with nominal 15 V operation enables use across diverse DC-DC converter topologies
- Compact 8-pin SOIC package (JESD-30 R-PDSO-G8) simplifies board layout and supports high-volume automated assembly
Applications
The UC2845D8TRG4 is commonly used in flyback, forward, and boost switching power supply designs for telecom infrastructure, industrial power systems, and computing equipment. Its current-mode control provides inherent overcurrent protection and improved line regulation, making it well-suited for isolated and non-isolated DC-DC converter designs. The compact 8-pin SOIC packaging allows integration into space-constrained power modules and adapters.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Analog IC - Other Type | SWITCHING CONTROLLER |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 28V |
| Input Voltage-Min | 7.6V |
| Input Voltage-Nom | 15V |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Output Current-Max | 1A |
| Output Voltage-Max | 80V |
| 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) | 25mA |
| Supply Voltage-Max (Vsup) | 28V |
| Supply Voltage-Min (Vsup) | 8.4V |
| Surface Mount | YES |
| Switcher Configuration | BUCK-BOOST |
| Switching Frequency-Max | 500kHz |
| Technology | BICMOS |
| Temperature Grade | INDUSTRIAL |
| 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 | 8542.39.00.60 |
| Country of Origin | Mexico |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What control topology does the UC2845D8TRG4 implement?
The UC2845D8TRG4 implements current-mode control with pulse width modulation (PWM). Current-mode control senses the inductor current on a cycle-by-cycle basis, providing inherent overcurrent limiting, improved transient response, and automatic flux balancing in transformer-coupled topologies such as flyback and forward converters.
What is the input voltage range of the UC2845D8TRG4?
The UC2845D8TRG4 operates with an input voltage range of 7.6 V minimum to 28 V maximum, with a nominal supply voltage of 15 V. This range supports a wide variety of DC power bus voltages commonly found in industrial, telecom, and consumer power supply applications.
What package does the UC2845D8TRG4 come in?
The UC2845D8TRG4 is housed in an 8-pin SOIC package identified by JESD-30 code R-PDSO-G8. This compact surface-mount package is industry standard for PWM controller ICs, enabling straightforward PCB layout with minimal board space and compatibility with standard pick-and-place assembly processes.
Is the UC2845D8TRG4 lead-free and RoHS compliant?
Yes, the UC2845D8TRG4 has a Pb-free code of Yes and JESD-609 code e4, confirming it is RoHS compliant and manufactured with lead-free materials. The G4 suffix in the part number also denotes green and lead-free packaging, ensuring compliance with environmental regulations in major global markets.
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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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