Overview
The UCC3802N, produced by Texas Instruments, is a low-power BiCMOS current-mode PWM controller designed for use in offline and DC-DC switch-mode power supplies. This component is particularly suited for applications requiring high efficiency and minimal external components. The UCC3802N is housed in a DIP-8 package, making it easy to integrate into various circuit designs. Its market positioning targets power supply designers looking for reliable and cost-effective solutions in industrial, consumer electronics, and automotive applications. The UCC3802N stands out for its low startup and operating currents, high-frequency operation capability, and integrated features such as soft-start and leading-edge blanking.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Package | DIP-8 | - | - |
| Operating Temperature | 0 to 70 | °C | - |
| Startup Current | 100 | μA | Typical |
| Operating Current | 500 | μA | Typical |
| Maximum Frequency | 1 | MHz | - |
| Output Drive Current | 1 | A | Peak |
| Voltage Reference Tolerance | 1.5 | % | - |
Key Features
- Low startup and operating currents for energy efficiency.
- High-frequency operation up to 1 MHz for compact designs.
- Integrated soft-start for controlled startup sequences.
- Leading-edge blanking for noise immunity in current sensing.
- 1-A peak output drive current for robust power switching.
Applications
The UCC3802N is widely used in various power supply applications, including offline power supplies, DC-DC converters, and auxiliary power units. Its efficiency and reliability make it ideal for industrial automation systems, consumer electronics such as audio amplifiers, and automotive electronics where stable and efficient power management is critical. The integrated features of the UCC3802N simplify design and reduce component count, making it a preferred choice for power supply designers.
Q & A
1. What is the operating temperature range of the UCC3802N?
The UCC3802N operates within a temperature range of 0°C to 70°C.
2. What package does the UCC3802N come in?
The UCC3802N is available in a DIP-8 package.
3. What is the maximum operating frequency of the UCC3802N?
The UCC3802N can operate at frequencies up to 1 MHz.
4. Does the UCC3802N have integrated soft-start functionality?
Yes, the UCC3802N includes integrated soft-start for controlled startup sequences.
5. What is the typical startup current of the UCC3802N?
The typical startup current is 100 μA.
6. What is the output drive current capability of the UCC3802N?
The UCC3802N can drive up to 1 A peak current.
7. Is the UCC3802N suitable for automotive applications?
Yes, the UCC3802N is suitable for automotive electronics due to its reliability and efficiency.
8. What is the voltage reference tolerance of the UCC3802N?
The voltage reference tolerance is 1.5%.
9. Can the UCC3802N be used in offline power supplies?
Yes, the UCC3802N is designed for use in offline power supplies.
10. What is the typical operating current of the UCC3802N?
The typical operating current is 500 μA.
