IC Phoenix logo

Home ›  L  › L37 > LM3552SDX

LM3552SDX from NSC,National Semiconductor

Fast Delivery, Competitive Price @IC-phoenix

If you need more electronic components or better pricing, we welcome any inquiry.

LM3552SDX

Manufacturer: NSC

1A White LED Driver with Flash Timeout Protection

Partnumber Manufacturer Quantity Availability
LM3552SDX NSC 3125 In Stock

Description and Introduction

1A White LED Driver with Flash Timeout Protection The LM3552SDX is a high-efficiency, dual-output LED driver manufactured by National Semiconductor (NSC).  

### **Specifications:**  
- **Input Voltage Range:** 2.7V to 5.5V  
- **Output Current:** Up to 400mA per channel (adjustable)  
- **Switching Frequency:** 1MHz (typical)  
- **Efficiency:** Up to 90%  
- **Number of Outputs:** 2 (dual LED driver)  
- **Dimming Control:** PWM and analog dimming  
- **Package:** 10-pin WSON (3mm x 3mm)  
- **Operating Temperature Range:** -40°C to +85°C  

### **Descriptions:**  
The LM3552SDX is designed to drive two high-brightness LEDs efficiently from a single-cell Li-Ion battery or other low-voltage sources. It integrates two current-regulated charge pumps, allowing independent control of each LED channel.  

### **Features:**  
- Dual high-current LED drivers (400mA per channel)  
- Automatic transition between 1x and 2x charge pump modes for optimal efficiency  
- Independent PWM and analog dimming control  
- Low shutdown current (<1µA)  
- Integrated soft-start to limit inrush current  
- Thermal shutdown protection  
- Overvoltage protection  

The device is commonly used in mobile phones, digital cameras, and portable devices requiring dual-LED backlighting.

Application Scenarios & Design Considerations

1A White LED Driver with Flash Timeout Protection
Partnumber Manufacturer Quantity Availability
LM3552SDX NS 1828 In Stock

Description and Introduction

1A White LED Driver with Flash Timeout Protection The LM3552SDX is a dual white LED flash driver manufactured by National Semiconductor (NS).  

**Specifications:**  
- Input Voltage Range: 2.7V to 5.5V  
- Output Current: Up to 1.2A (adjustable)  
- Switching Frequency: 1MHz (typical)  
- Efficiency: Up to 85%  
- Operating Temperature Range: -40°C to +85°C  
- Package: 10-pin LLP (3mm x 3mm)  

**Descriptions:**  
The LM3552SDX is designed to drive dual high-power white LEDs for camera flash applications in mobile devices. It integrates a high-efficiency boost converter with adaptive current regulation.  

**Features:**  
- Dual independently controlled LED current sinks  
- Programmable flash and torch mode brightness  
- I²C-compatible interface for control  
- Overvoltage, overcurrent, and thermal protection  
- Low shutdown current (<1µA)  
- Soft-start to reduce inrush current  

Let me know if you need further details.

Application Scenarios & Design Considerations

1A White LED Driver with Flash Timeout Protection

Request Quotation

For immediate assistance, call us at +86 533 2716050 or email [email protected]

Part Number Quantity Target Price($USD) Email Contact Person
We offer highly competitive channel pricing. Get in touch for details.

Specializes in hard-to-find components chips