Overview
The UC3825AQ is a high-speed PWM controller manufactured by Unitrode, now part of Texas Instruments. Designed for switching power supply applications, this IC is known for its versatility and robust performance in both current and voltage mode control. It is widely used in power management systems due to its ability to handle high-frequency switching up to 1.1 MHz. The UC3825AQ is particularly suited for applications requiring precise control and high efficiency, such as DC-DC converters, inverters, and other power supply designs.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Category | PMIC - Regulator - DC DC Switching Controller | - | - |
| Description | IC REG CTRLR PWM CM/VM 20-PLCC | - | - |
| PWM Type | Current/Voltage Mode | - | - |
| Outputs | 2 | - | - |
| Max Frequency | 1.1 | MHz | - |
| Duty Cycle | 50 | % | - |
| Supply Voltage | Up to 22 | V | - |
| Operating Temperature | 0 to 70 | °C | - |
| Package | 20-LCC (J-Lead) | - | - |
Key Features
- High-speed PWM control for efficient power management.
- Supports both current and voltage mode control.
- Capable of handling high-frequency switching up to 1.1 MHz.
- Robust design for use in various power supply applications.
- Compact 20-PLCC package for space-constrained designs.
Applications
The UC3825AQ is widely used in power management systems, including DC-DC converters, inverters, and other switching power supplies. Its high-speed PWM control and versatile design make it suitable for applications in industrial automation, telecommunications, and consumer electronics. Additionally, it is commonly employed in designs requiring precise voltage regulation and high efficiency.
Q & A
What is the maximum switching frequency of the UC3825AQ?
The UC3825AQ can handle a maximum switching frequency of 1.1 MHz.
What type of control modes does the UC3825AQ support?
It supports both current and voltage mode control.
What is the operating temperature range of the UC3825AQ?
The operating temperature range is 0°C to 70°C.
What is the supply voltage range for the UC3825AQ?
The supply voltage can go up to 22V.
What package does the UC3825AQ come in?
It is available in a 20-PLCC (J-Lead) package.
Is the UC3825AQ suitable for DC-DC converters?
Yes, it is widely used in DC-DC converter designs.
Can the UC3825AQ be used in inverter applications?
Yes, it is suitable for inverter applications.
What is the duty cycle of the UC3825AQ?
The duty cycle is 50%.
Is the UC3825AQ suitable for high-frequency applications?
Yes, it is designed for high-frequency switching up to 1.1 MHz.
What are the key features of the UC3825AQ?
Key features include high-speed PWM control, support for current and voltage mode control, and a compact 20-PLCC package.
