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LM5025SD/NOPB from NSC,National Semiconductor

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31.250ms

LM5025SD/NOPB

Manufacturer: NSC

Active Clamp Voltage Mode PWM Controller 16-WSON -40 to 125

Partnumber Manufacturer Quantity Availability
LM5025SD/NOPB,LM5025SDNOPB NSC 480 In Stock

Description and Introduction

Active Clamp Voltage Mode PWM Controller 16-WSON -40 to 125 The LM5025SD/NOPB is a high-voltage PWM controller manufactured by National Semiconductor (NSC).  

### **Specifications:**  
- **Input Voltage Range:** 15V to 100V  
- **Operating Frequency:** Adjustable up to 1MHz  
- **Output Drive Current:** 1A (peak)  
- **Duty Cycle Range:** Up to 90%  
- **Soft-Start Function:** Programmable  
- **UVLO (Undervoltage Lockout):** Adjustable  
- **Package:** WSON-10 (3mm x 3mm)  
- **Operating Temperature Range:** -40°C to +125°C  

### **Descriptions:**  
The LM5025SD/NOPB is designed for high-voltage DC-DC converter applications, including flyback, forward, and boost topologies. It features a high-voltage start-up regulator, reducing the need for external bias supplies.  

### **Features:**  
- **High-Voltage Start-Up Regulator:** Eliminates the need for an external bias supply.  
- **Programmable Oscillator:** Allows frequency adjustment via an external resistor.  
- **Current Mode Control:** Improves transient response and simplifies loop compensation.  
- **Cycle-by-Cycle Current Limiting:** Protects against overloads.  
- **Synchronous Rectifier Control:** Supports efficient power conversion.  
- **Thermal Shutdown:** Protects the device from overheating.  

This controller is suitable for industrial, automotive, and telecom power supply applications.

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