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LM3421Q0MH from NS,National Semiconductor

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LM3421Q0MH

Manufacturer: NS

N-Channel Controllers for Constant Current LED Drivers

Partnumber Manufacturer Quantity Availability
LM3421Q0MH NS 859 In Stock

Description and Introduction

N-Channel Controllers for Constant Current LED Drivers The LM3421Q0MH is a high-voltage N-channel MOSFET controller manufactured by Texas Instruments (NS).  

### **Specifications:**  
- **Input Voltage Range:** 4.5V to 75V  
- **Output Voltage:** Adjustable (depends on external components)  
- **Switching Frequency:** Adjustable (up to 1MHz)  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** 16-Pin HTSSOP (PowerPAD™)  
- **Control Method:** Peak Current Mode  

### **Descriptions:**  
The LM3421Q0MH is designed for high-voltage LED driver applications. It provides constant current regulation for driving high-brightness LEDs. The device supports buck, boost, buck-boost, and flyback topologies.  

### **Features:**  
- **Wide Input Voltage Range (4.5V to 75V)**  
- **Adjustable Switching Frequency (up to 1MHz)**  
- **Integrated High-Side N-Channel MOSFET Driver**  
- **Supports PWM and Analog Dimming**  
- **Thermal Shutdown Protection**  
- **Undervoltage Lockout (UVLO)**  
- **Cycle-by-Cycle Current Limiting**  

This information is based on the manufacturer's datasheet. For detailed application-specific configurations, refer to the official documentation.

Application Scenarios & Design Considerations

N-Channel Controllers for Constant Current LED Drivers

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