Overview
The UC3526ADWG4 is a high-performance monolithic pulse width modulator (PWM) controller manufactured by Texas Instruments. Designed for fixed-frequency switching regulators and power control applications, this IC is housed in an 18-pin SOIC package. It is tailored for use in various power supply designs, offering precise control and robust performance. The UC3526ADWG4 is particularly suitable for applications requiring high efficiency and reliability, such as industrial power systems, telecommunications, and automotive electronics. Its market positioning targets engineers and designers seeking advanced PWM solutions with integrated features for enhanced power management.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Operating Voltage | 7 to 35 | V | |
| Output Frequency | Up to 650 | kHz | |
| Output Type | Dual | Source/Sink | |
| Output Current | 100 | mA | Per Output |
| Oscillator Range | 1 to 400 | kHz | |
| Reference Voltage | 5 | V | ±1% Trimmed |
| Operating Temperature | 0 to 70 | °C | |
| Package | 18-SOIC | 7.50mm Wide |
Key Features
- Integrated voltage reference trimmed to ±1% for precision.
- Wide operating voltage range (7V to 35V) for versatile applications.
- Dual 100mA source/sink outputs for flexible power control.
- Programmable oscillator range from 1Hz to 400kHz.
- Built-in under-voltage lockout and soft-start features for enhanced reliability.
- TTL and CMOS-compatible control inputs for easy integration.
Applications
The UC3526ADWG4 is widely used in power supply designs across various industries. Its primary applications include:
- Industrial Power Systems: Provides precise control for switching regulators in industrial equipment.
- Telecommunications: Ensures stable and efficient power management in telecom infrastructure.
- Automotive Electronics: Supports power control in automotive systems, enhancing reliability and performance.
- Consumer Electronics: Used in high-efficiency power supplies for devices such as adapters and chargers.
Q & A
1. What is the operating voltage range of the UC3526ADWG4?
The operating voltage range is 7V to 35V.
2. What is the maximum output frequency supported?
The maximum output frequency is 650kHz.
3. Does the UC3526ADWG4 support dual outputs?
Yes, it features dual 100mA source/sink outputs.
4. What is the oscillator range of this IC?
The oscillator range is programmable from 1Hz to 400kHz.
5. Is the UC3526ADWG4 compatible with TTL and CMOS inputs?
Yes, it is compatible with both TTL and CMOS control inputs.
6. What is the reference voltage accuracy?
The reference voltage is trimmed to ±1% accuracy.
7. What are the key protective features of this IC?
It includes under-voltage lockout and soft-start features for enhanced reliability.
8. What package does the UC3526ADWG4 come in?
It is available in an 18-pin SOIC package.
9. What is the operating temperature range?
The operating temperature range is 0°C to 70°C.
10. What are the typical applications of the UC3526ADWG4?
Typical applications include industrial power systems, telecommunications, automotive electronics, and consumer electronics.
