High Speed PWM Controller The UC1825J/883B is a high-speed PWM controller manufactured by Texas Instruments (TI). Below are its specifications, descriptions, and features based on Ic-phoenix technical data files:
### **Specifications:**
- **Manufacturer:** Texas Instruments (TI)
- **Part Number:** UC1825J/883B
- **Type:** High-Speed PWM Controller
- **Qualification Level:** MIL-PRF-38535 Class B (883B)
- **Operating Temperature Range:** -55°C to +125°C
- **Supply Voltage (VCC):** Up to 40V
- **Output Drive Current:** ±2A (peak)
- **Switching Frequency:** Up to 1MHz
- **Duty Cycle Range:** 0% to 100%
- **Package:** 16-Pin CERDIP (J-Lead)
### **Descriptions:**
The UC1825J/883B is a radiation-hardened, high-performance PWM controller designed for demanding military and aerospace applications. It provides precise pulse-width modulation control for power converters, featuring high-speed operation, robust protection features, and reliability under extreme conditions.
### **Features:**
- **Radiation-Hardened:** Qualified for MIL-PRF-38535 Class B (883B) standards.
- **High-Speed Operation:** Supports switching frequencies up to 1MHz.
- **Wide Input Voltage Range:** Operates with supply voltages up to 40V.
- **High Output Drive Current:** ±2A peak output drive for fast switching.
- **Programmable Soft-Start:** Reduces inrush current during startup.
- **Precision Reference:** Internal 5.1V ±1% voltage reference.
- **Current Limiting:** Built-in current sense and limiting.
- **Undervoltage Lockout (UVLO):** Ensures proper operation under low-voltage conditions.
- **Dual Pulse-Width Modulation (PWM):** Supports push-pull or half-bridge configurations.
- **Thermal Protection:** Includes thermal shutdown for safety.
This information is strictly based on the available knowledge base for the UC1825J/883B.
