IC Phoenix logo

Home ›  L  › L30 > LM27965SQX

LM27965SQX from NSC,National Semiconductor

Fast Delivery, Competitive Price @IC-phoenix

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

LM27965SQX

Manufacturer: NSC

Dual Display White LED Driver with I2C Compatible Brightness Control

Partnumber Manufacturer Quantity Availability
LM27965SQX NSC 9000 In Stock

Description and Introduction

Dual Display White LED Driver with I2C Compatible Brightness Control The LM27965SQX is a dual white LED charge pump with an I2C interface, manufactured by National Semiconductor (NSC).  

### **Specifications:**  
- **Input Voltage Range:** 2.7V to 5.5V  
- **Output Current:** Up to 32mA per LED (adjustable via I2C)  
- **Number of Channels:** 2 (dual LED driver)  
- **Efficiency:** Up to 90% (depending on operating mode)  
- **Switching Frequency:** 1MHz (typical)  
- **Package:** 16-pin WQFN  

### **Descriptions:**  
- Designed for driving white LEDs in backlight applications.  
- Features an I2C-compatible interface for brightness control.  
- Includes automatic mode switching for optimal efficiency.  
- Provides soft-start and thermal shutdown protection.  

### **Features:**  
- **I2C Control:** Adjustable LED current and enable/disable functions.  
- **Charge Pump Modes:** 1x, 1.5x, and 2x modes for efficiency optimization.  
- **Current Matching:** Ensures uniform brightness across LEDs.  
- **Low Noise Operation:** Minimizes interference in sensitive applications.  
- **Thermal Protection:** Prevents overheating damage.  

This device is commonly used in portable electronics such as smartphones and tablets for display backlighting.

Application Scenarios & Design Considerations

Dual Display White LED Driver with I2C Compatible Brightness Control
Partnumber Manufacturer Quantity Availability
LM27965SQX NS 3560 In Stock

Description and Introduction

Dual Display White LED Driver with I2C Compatible Brightness Control The LM27965SQX is a dual white LED driver manufactured by National Semiconductor (NS). Here are its specifications, descriptions, and features:

### **Specifications:**  
- **Input Voltage Range:** 2.7V to 5.5V  
- **Output Current:** Up to 32mA per channel (adjustable)  
- **Number of Channels:** 2  
- **Efficiency:** Up to 90%  
- **Switching Frequency:** 1MHz (typical)  
- **Dimming Control:** PWM (Pulse Width Modulation) or analog  
- **Package:** 16-pin LLP (Leadless Leadframe Package)  
- **Operating Temperature Range:** -40°C to +85°C  

### **Descriptions:**  
- The LM27965SQX is designed to drive dual white LEDs for backlighting applications in portable devices.  
- It integrates a high-efficiency charge pump and current regulators to provide stable LED current.  
- The device supports both PWM and analog dimming for brightness control.  

### **Features:**  
- **Dual Independent LED Drivers:** Allows precise current control for two LEDs.  
- **1x/1.5x Charge Pump Modes:** Optimizes efficiency based on input voltage.  
- **Low Dropout Current Regulators:** Ensures consistent brightness even at low battery levels.  
- **Soft-Start Circuitry:** Prevents inrush current during startup.  
- **Thermal Shutdown Protection:** Safeguards the device from overheating.  
- **Small Footprint:** Suitable for space-constrained designs.  

This information is based solely on the manufacturer's datasheet.

Application Scenarios & Design Considerations

Dual Display White LED Driver with I2C Compatible Brightness Control

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