Current Mode PWM Controller The UC2844AD8 is a current-mode PWM controller manufactured by Texas Instruments (UCC).
### **Specifications:**
- **Topology:** Current-mode PWM controller
- **Input Voltage (VCC):** 8.4V to 30V (operating), 7.9V (start-up)
- **Output Current (Peak):** ±1A (source/sink)
- **Switching Frequency:** Up to 500kHz
- **Duty Cycle Range:** 0% to 100%
- **Error Amplifier Gain Bandwidth:** 1MHz
- **Reference Voltage (VREF):** 5V ±1%
- **Operating Temperature Range:** -40°C to +85°C
- **Package:** SOIC-8 (D8)
### **Descriptions:**
- Designed for offline and DC-DC converters.
- Features include under-voltage lockout (UVLO), current sensing, and adjustable oscillator frequency.
- Includes a trimmed bandgap reference, high-gain error amplifier, and a current-sensing comparator.
### **Features:**
- **Current-Mode Control:** Improved loop response and simplified compensation.
- **Automatic Feed-Forward Compensation:** Reduces output impedance.
- **Pulse-by-Pulse Current Limiting:** Enhances system reliability.
- **Undervoltage Lockout (UVLO):** Ensures proper start-up and shutdown.
- **Internal Soft-Start:** Reduces inrush current during start-up.
- **Low Startup Current (≤1mA):** Enables efficient operation.
This information is based on the manufacturer's datasheet for the UC2844AD8.
