BiCMOS Low-Power Current Mode PWM Controller 8-PDIP 0 to 70 The UCC38C42PG4 is a high-performance current-mode PWM controller manufactured by Texas Instruments (TEXAS). Below are its key specifications, descriptions, and features:
### **Specifications:**
- **Manufacturer:** Texas Instruments (TEXAS)
- **Type:** Current-Mode PWM Controller
- **Output Configuration:** Single-Ended
- **Topology:** Boost, Flyback, Forward
- **Switching Frequency:** Up to **1MHz**
- **Supply Voltage (VCC):** **8V to 35V**
- **Duty Cycle Max:** **100%**
- **Operating Temperature Range:** **-40°C to +85°C**
- **Package:** **PDIP-8 (Plastic Dual In-Line Package)**
- **Output Current (Source/Sink):** **1A (Peak)**
- **Control Method:** **Current Mode**
- **UVLO (Undervoltage Lockout):** **8V (On), 7.6V (Off)**
- **Reference Voltage:** **5V**
### **Descriptions:**
- The UCC38C42PG4 is designed for high-frequency switching power supplies.
- It provides precise current-mode control for improved transient response and simplified loop compensation.
- Features include an integrated oscillator, error amplifier, and current-sensing comparator.
- Suitable for applications requiring high efficiency and compact power supply designs.
### **Features:**
- **Current-Mode Control** for enhanced stability and response.
- **Programmable Oscillator Frequency** (up to 1MHz).
- **Soft-Start Capability** for controlled startup.
- **Under-Voltage Lockout (UVLO)** for protection.
- **High-Current Totem Pole Output** (1A peak).
- **Low Startup Current** (150µA typical).
- **5V Reference Voltage** for feedback control.
- **Wide Operating Voltage Range** (8V to 35V).
This PWM controller is commonly used in **DC-DC converters, power supplies, and industrial applications**.
