Overview
The UCC3809DTR-2 is a switching controller manufactured by Texas Instruments, designed for primary-side control in various power supply topologies. This IC is part of the UCC3809-2 series and is widely used in economical power management solutions. It is particularly suited for applications requiring minimal external components and efficient power conversion. The UCC3809DTR-2 is RoHS compliant and available in an SOIC-8 package, making it suitable for surface-mount technology (SMT) applications.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Topology | Boost, Buck, Flyback, Forward | - | Supports multiple configurations |
| Outputs | 1 Output | - | Single output design |
| Switching Frequency | 1000 | kHz | High-frequency operation |
| Maximum Duty Cycle | 70 | % | Efficient power management |
| Output Current | 800 | mA | Drives external MOSFETs |
| Operating Temperature | 0 to +70 | °C | Standard industrial range |
| Package | SOIC-8 | - | Surface-mount package |
| Dimensions | 4.9 x 3.91 x 1.58 | mm | Compact size |
| Factory Pack Quantity | 2500 | - | Reel packaging |
Key Features
- Supports multiple power supply topologies including Boost, Buck, Flyback, and Forward.
- High switching frequency of up to 1000 kHz for efficient power conversion.
- Maximum duty cycle of 70% for optimal power management.
- Output current capability of 800 mA, suitable for driving external MOSFETs.
- Compact SOIC-8 package, ideal for space-constrained applications.
Applications
The UCC3809DTR-2 is commonly used in power supply designs for industrial, consumer electronics, and telecommunications equipment. Its ability to support multiple topologies makes it versatile for applications such as AC/DC converters, isolated DC/DC converters, and battery chargers. The IC's high efficiency and minimal external component requirements make it a cost-effective solution for low to medium power applications.
Q & A
1. What is the maximum switching frequency of the UCC3809DTR-2?
The maximum switching frequency is 1000 kHz.
2. What topologies does the UCC3809DTR-2 support?
It supports Boost, Buck, Flyback, and Forward topologies.
3. What is the output current capability of the UCC3809DTR-2?
The output current capability is 800 mA.
4. What is the operating temperature range of the UCC3809DTR-2?
The operating temperature range is 0°C to +70°C.
5. What package does the UCC3809DTR-2 come in?
It comes in an SOIC-8 package.
6. Is the UCC3809DTR-2 RoHS compliant?
Yes, it is RoHS compliant.
7. What is the maximum duty cycle of the UCC3809DTR-2?
The maximum duty cycle is 70%.
8. What is the factory pack quantity for the UCC3809DTR-2?
The factory pack quantity is 2500 units per reel.
9. Can the UCC3809DTR-2 be used in battery charger applications?
Yes, it is suitable for battery charger designs.
10. What is the typical application of the UCC3809DTR-2?
It is commonly used in AC/DC and DC/DC power supply designs.
