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LM3552SD from NS,National Semiconductor

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LM3552SD

Manufacturer: NS

1A White LED Driver with Flash Timeout Protection

Partnumber Manufacturer Quantity Availability
LM3552SD NS 36994 In Stock

Description and Introduction

1A White LED Driver with Flash Timeout Protection The LM3552SD is a white LED flash driver manufactured by National Semiconductor (NS). Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:  

### **Specifications:**  
- **Manufacturer:** National Semiconductor (NS)  
- **Part Number:** LM3552SD  
- **Type:** White LED Flash Driver  
- **Input Voltage Range:** 2.7V to 5.5V  
- **Output Current:** Up to 1.2A (adjustable)  
- **Switching Frequency:** 1MHz (typical)  
- **Efficiency:** Up to 85%  
- **Package:** WSON-10 (3mm x 3mm)  
- **Operating Temperature Range:** -40°C to +85°C  

### **Descriptions:**  
- The LM3552SD is a high-efficiency, step-up DC-DC converter designed to drive high-current white LEDs for camera flash applications.  
- It integrates a high-side current sink for precise LED current regulation.  
- Features include thermal shutdown, overvoltage protection, and LED open/short-circuit protection.  

### **Features:**  
- **Adjustable Flash Current:** Up to 1.2A  
- **Torch Mode:** Lower current setting for continuous illumination  
- **I²C-Compatible Interface:** Allows programmable control of flash and torch modes  
- **Integrated Current Sink:** Ensures accurate LED current regulation  
- **Thermal Shutdown Protection:** Prevents overheating  
- **Overvoltage Protection (OVP):** Safeguards against excessive voltage  
- **Small Footprint:** 3mm x 3mm WSON-10 package  

This information is strictly based on the manufacturer's datasheet and technical documentation.

Application Scenarios & Design Considerations

1A White LED Driver with Flash Timeout Protection

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