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UC2845BNG from ON,ON Semiconductor

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15.625ms

UC2845BNG

Manufacturer: ON

High Performance Current Mode Controllers

Partnumber Manufacturer Quantity Availability
UC2845BNG ON 6000 In Stock

Description and Introduction

High Performance Current Mode Controllers The UC2845BNG is a high-performance current-mode PWM controller manufactured by ON Semiconductor.  

### **Specifications:**  
- **Topology:** Current-mode PWM controller  
- **Input Voltage Range (VCC):** 7.6V to 30V  
- **Operating Frequency:** Up to 500 kHz  
- **Output Drive Current:** ±1A (peak)  
- **Duty Cycle Range:** 0% to 100%  
- **Reference Voltage (VREF):** 5V ±1%  
- **Low Startup Current:** <0.5mA  
- **UVLO (Undervoltage Lockout):**  
  - Turn-on: 16V (typical)  
  - Turn-off: 10V (typical)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** PDIP-8 (DIP-8)  

### **Descriptions and Features:**  
- Designed for offline and DC-DC converter applications.  
- Automatic feed-forward compensation improves line regulation.  
- Latching PWM for cycle-by-cycle current limiting.  
- Internal trimmed bandgap reference for precise voltage regulation.  
- High-current totem-pole output for driving power MOSFETs directly.  
- Soft-start capability for controlled startup.  
- Low power consumption in standby mode.  
- Protection features include undervoltage lockout (UVLO) and current limiting.  

This device is commonly used in power supply designs, including flyback, forward, and boost converters.

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