0 The UCC3813D-4 is a BiCMOS advanced PWM controller manufactured by Texas Instruments. Below are its specifications, descriptions, and features:
### **Specifications:**
- **Manufacturer:** Texas Instruments
- **Type:** PWM Controller
- **Technology:** BiCMOS
- **Package:** SOIC-14
- **Operating Temperature Range:** -40°C to +85°C
- **Input Voltage Range:** 10V to 17V (VCC)
- **Output Current (Source/Sink):** 1A (Peak)
- **Switching Frequency:** Adjustable up to 1MHz
- **Duty Cycle Range:** 0% to 100%
- **UVLO (Undervoltage Lockout):** 9.6V (Turn-On), 8.4V (Turn-Off)
### **Descriptions:**
The UCC3813D-4 is a high-performance current-mode PWM controller designed for power supply applications. It provides precise regulation and protection features, making it suitable for AC/DC and DC/DC converters. The device includes a high-speed oscillator, error amplifier, and current-sensing comparator for accurate control.
### **Features:**
- **Current-Mode Control:** Improves loop response and simplifies compensation.
- **Programmable Oscillator:** Adjustable frequency via external components.
- **Soft-Start Function:** Reduces inrush current during startup.
- **Error Amplifier:** Wide bandwidth for fast transient response.
- **Synchronization Capability:** Allows synchronization to an external clock.
- **Overcurrent Protection:** Includes cycle-by-cycle current limiting.
- **Low Power Consumption:** Optimized for efficiency.
- **Totem-Pole Outputs:** High-current drive capability for MOSFETs.
This information is based solely on the manufacturer's datasheet. For detailed application notes, refer to Texas Instruments' official documentation.
