Regulating Pulse Width Modulators The UC3525AQTR is a pulse width modulation (PWM) controller manufactured by Texas Instruments (TI). Below are its specifications, descriptions, and features:
### **Specifications:**
- **Manufacturer:** Texas Instruments (TI)
- **Part Number:** UC3525AQTR
- **Type:** PWM Controller IC
- **Package:** SOIC-16
- **Operating Temperature Range:** -40°C to +85°C
- **Input Voltage Range:** 8V to 35V
- **Output Current:** 200mA (sink/source)
- **Switching Frequency:** Up to 500kHz (adjustable)
- **Duty Cycle Range:** 0% to 100%
- **Reference Voltage:** 5.1V (±1%)
- **Error Amplifier Gain Bandwidth:** 3MHz (typical)
- **Supply Current:** 15mA (typical)
### **Descriptions:**
The UC3525AQTR is a high-performance PWM controller designed for power supply applications. It provides precise control over switching regulators, inverters, and DC-DC converters. The device includes an onboard oscillator, error amplifier, PWM comparator, and output drivers, making it suitable for various power management designs.
### **Features:**
- **Adjustable Dead-Time Control:** Allows precise timing between outputs.
- **Soft-Start Capability:** Prevents high inrush currents during startup.
- **Synchronous Operation:** Supports multiple IC synchronization.
- **Under-Voltage Lockout (UVLO):** Ensures reliable operation under low input voltage conditions.
- **Dual Output Drivers:** Capable of sourcing and sinking 200mA.
- **Error Amplifier with High Gain Bandwidth:** Ensures stable feedback loop performance.
- **Shutdown Function:** Provides a controlled shutdown mechanism.
- **5.1V Reference Voltage:** Stable and accurate for control circuitry.
This information is based on TI's official datasheet for the UC3525AQTR.
