Overview
The UCC2804QDRQ1 is a high-performance, automotive-qualified PWM controller produced by Texas Instruments. Designed for offline and DC-DC fixed-frequency current-mode switching power supplies, this component integrates all necessary control and drive functions, minimizing external component count. Its automotive-grade qualification ensures reliability in harsh environments, making it ideal for automotive and industrial applications. The UCC2804QDRQ1 stands out for its internal soft-start, internal leading-edge blanking, and high-frequency operation, providing a robust solution for power supply designs.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Input Voltage | 7.1 to 20 | V | |
| Output Voltage | 18 | V | |
| Frequency Range | Up to 1 | MHz | |
| Operating Temperature | -40 to 125 | °C | |
| Package | SOIC-8 | ||
| Output Isolation | Isolated | ||
| Startup Current | 100 | µA | Typical |
| Operating Current | 500 | µA | Typical |
| UVLO Hysteresis | High | Ideal for offline power | |
| Pin Configuration | Same as UCx84x series |
Key Features
- Internal soft-start for controlled startup
- Internal leading-edge blanking for noise immunity
- High-frequency operation up to 1 MHz
- Automotive-qualified for harsh environments
- Low startup and operating currents
- Pin compatibility with UCx84x series
Applications
The UCC2804QDRQ1 is widely used in automotive and industrial power supply systems. Its robust design and high-frequency operation make it suitable for applications such as DC-DC converters, offline power supplies, and battery-powered systems. The component's internal features, like soft-start and leading-edge blanking, enhance reliability in demanding environments, ensuring stable performance in automotive electronics, industrial automation, and consumer electronics.
Q & A
1. What is the operating temperature range of the UCC2804QDRQ1?
The UCC2804QDRQ1 operates within a temperature range of -40°C to 125°C.
2. What is the maximum frequency of operation?
The component supports operation up to 1 MHz.
3. Is the UCC2804QDRQ1 suitable for automotive applications?
Yes, it is automotive-qualified and designed for harsh environments.
4. What is the input voltage range?
The input voltage range is 7.1 V to 20 V.
5. Does it include internal soft-start?
Yes, it features internal soft-start for controlled startup.
6. What is the package type?
The UCC2804QDRQ1 comes in an SOIC-8 package.
7. What is the typical startup current?
The typical startup current is 100 µA.
8. Is it pin-compatible with the UCx84x series?
Yes, it shares the same pin configuration as the UCx84x series.
9. What is the UVLO hysteresis level?
It has a high UVLO hysteresis, making it ideal for offline power applications.
10. What are the key applications of this component?
It is used in DC-DC converters, offline power supplies, and automotive electronics.
