HIGH PERFORMANCE CURRENT MODE CONTROLLERS The UC2842AN is a high-performance current-mode PWM controller manufactured by Texas Instruments (UCC).
### **Specifications:**
- **Topology:** Current-mode PWM controller
- **Input Voltage (VCC):** Up to 30V
- **Output Drive Current:** ±1A (peak)
- **Switching Frequency:** Up to 500kHz
- **Duty Cycle Range:** 0% to 100%
- **Operating Temperature Range:** -40°C to +85°C
- **Package:** 8-Pin PDIP (Plastic Dual In-Line Package)
### **Descriptions:**
The UC2842AN is designed for offline and DC-to-DC converter applications. It provides precise duty cycle control with current-mode operation, enhancing loop response and simplifying compensation. It includes features like under-voltage lockout (UVLO), cycle-by-cycle current limiting, and a trimmed oscillator for accurate frequency control.
### **Features:**
- **Current-Mode Operation:** Improves transient response and simplifies loop compensation.
- **Automatic Feed-Forward Compensation:** Ensures consistent performance over input voltage variations.
- **Under-Voltage Lockout (UVLO):** Ensures proper startup and shutdown.
- **Trimmed Oscillator:** Provides precise frequency control.
- **High-Current Totem Pole Output:** Directly drives power MOSFETs.
- **Cycle-by-Cycle Current Limiting:** Enhances system reliability.
- **Internal Soft-Start:** Reduces inrush current during startup.
The UC2842AN is commonly used in power supplies, battery chargers, and industrial power systems.
