UCC28089DG4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The UCC28089DG4 is a primary-side PWM switching controller from Texas Instruments operating at up to 1 MHz in an 8-pin SOIC package. It accepts an 8.5–14 V input and delivers up to 1 A gate drive output for flyback and forward converter designs. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- OBSOLETE
- Datasheet
- UCC28089DG4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 105.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Primary-side PWM control up to 1 MHz switching frequency enabling compact transformer and passive component design in isolated power supplies
- Wide 8.5 V to 14 V input voltage range with 1 A peak gate drive output current supporting efficient MOSFET switching in flyback and forward topologies
- Single-function 8-pin SOIC package (R-PDSO-G8) minimizing board space while simplifying isolated DC-DC converter design with minimal external components
Applications
The UCC28089DG4 is designed for primary-side control in isolated flyback and forward DC-DC converters used in power adapters, industrial power supplies, and telecommunications equipment. Its 1 MHz switching capability allows designers to use smaller magnetic components and output capacitors, reducing overall power supply size and cost. It is also applied in auxiliary power supply stages within motor drives, solar inverters, and UPS systems requiring compact isolated regulation.
Specifications
| YTEOL | 0 |
| Analog IC - Other Type | SWITCHING CONTROLLER |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 14V |
| Input Voltage-Min | 8.5V |
| Input Voltage-Nom | 9V |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| Output Current-Max | 1A |
| Output Voltage-Min | 2V |
| 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 |
| Screening Level | TS 16949 |
| Supply Current-Max (Isup) | 20mA |
| Supply Voltage-Nom (Vsup) | 9V |
| Surface Mount | YES |
| Switcher Configuration | PUSH-PULL |
| Switching Frequency-Max | 1000kHz |
| Technology | BICMOS |
| Temperature Grade | INDUSTRIAL |
| 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
Compatible alternatives and drop-in replacements for UCC28089DG4:
Switching Controller, Current-mode, 1A, 1000kHz Switching Freq-Max, BICMOS, PDSO8
Switching Controller, Current-mode, 1A, 1000kHz Switching Freq-Max, BICMOS, PDSO8
Switching Controller, Current-mode, 1A, 1000kHz Switching Freq-Max, BICMOS, PDSO8
Switching Controller, Current-mode, 1A, 1000kHz Switching Freq-Max, BICMOS, PDSO8
Switching Controller, Current-mode, 1A, 1000kHz Switching Freq-Max, BICMOS, PDSO8
Frequently Asked Questions
What control method does the UCC28089DG4 use?
The UCC28089DG4 uses pulse width modulation (PWM) control for primary-side switching regulation. This technique adjusts the duty cycle of the switching waveform to maintain regulated output voltage in isolated DC-DC converter topologies such as flyback and forward converters.
What is the switching frequency of the UCC28089DG4?
The UCC28089DG4 supports a switching frequency of up to 1 MHz, enabling the use of smaller, lighter transformer and filter components. Higher switching frequencies reduce the physical size of the power supply, which is critical in compact adapters and space-constrained industrial equipment.
What is the input voltage range of the UCC28089DG4?
The UCC28089DG4 operates with an input voltage from 8.5 V minimum to 14 V maximum, with a nominal 9 V operating point. This range is well-suited for auxiliary power supply rails in industrial equipment, motor drives, and telecom systems that provide a regulated bias supply to the PWM controller.
What package does the UCC28089DG4 come in?
The UCC28089DG4 is housed in an 8-pin SOIC package (JEDEC code R-PDSO-G8), available in tube packaging as indicated by the DG4 suffix. The compact 8-pin SOIC footprint simplifies PCB layout for isolated DC-DC converters requiring minimal space.
What are typical applications for the UCC28089DG4?
Typical applications include primary-side control of isolated flyback and forward DC-DC converters in power adapters, industrial power supplies, telecom rectifiers, auxiliary power stages in motor drives, solar micro-inverters, and UPS systems requiring compact PWM regulation at frequencies up to 1 MHz.
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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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