BiCMOS Low-Power Current Mode PWM Controller 8-PDIP -40 to 105 The UCC28C44PG4 is a high-performance current-mode PWM controller manufactured by Texas Instruments. Below are its key specifications, descriptions, and features:
### **Specifications:**
- **Manufacturer:** Texas Instruments
- **Category:** Integrated Circuits (ICs)
- **Family:** PMIC - Voltage Regulators - DC DC Switching Controllers
- **Topology:** Buck, Boost, Flyback, Forward
- **Output Type:** Transistor Driver
- **Number of Outputs:** 1
- **Output Phases:** 1
- **Voltage - Supply (Vcc/Vdd):** 8.4V to 35V
- **Frequency - Switching:** Up to 500kHz
- **Duty Cycle (Max):** 100%
- **Synchronous Rectifier:** No
- **Clock Sync:** No
- **Control Features:** Current Limiting, Frequency Control, Soft Start
- **Operating Temperature:** -40°C to 85°C
- **Package / Case:** 8-DIP (0.300", 7.62mm)
- **Mounting Type:** Through Hole
### **Descriptions:**
- The UCC28C44PG4 is a versatile PWM controller designed for high-efficiency power supply applications.
- It operates in current-mode control, providing improved loop response and simplified compensation.
- Suitable for offline and DC-DC converter designs, including flyback, forward, buck, and boost topologies.
### **Features:**
- **Current-Mode Control:** Enhances transient response and simplifies feedback loop compensation.
- **Adjustable Switching Frequency:** Up to 500kHz for flexible design optimization.
- **Wide Operating Voltage Range:** Supports 8.4V to 35V input supply.
- **Soft-Start Capability:** Reduces inrush current during startup.
- **Under-Voltage Lockout (UVLO):** Ensures reliable operation under low-voltage conditions.
- **High-Current Totem Pole Output:** Directly drives power MOSFETs with 1A peak current.
- **Low Startup Current:** Minimizes power consumption during initial operation.
- **Error Amplifier with Reference:** Integrated for precise voltage regulation.
This device is commonly used in power supplies, industrial systems, and telecom applications. For detailed application notes, refer to Texas Instruments' official documentation.
