IC Phoenix logo

Home ›  L  › L30 > LM2794BLX

LM2794BLX from NS,National Semiconductor

Fast Delivery, Competitive Price @IC-phoenix

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

LM2794BLX

Manufacturer: NS, LM, NSC

Current Regulated Switched Capacitor LED Supply with Analog and PWM Brightness Control

Partnumber Manufacturer Quantity Availability
LM2794BLX NS, LM, NSC 7872 In Stock

Description and Introduction

Current Regulated Switched Capacitor LED Supply with Analog and PWM Brightness Control The LM2794BLX is a dual white LED charge pump designed by National Semiconductor (NS). Here are its key specifications, descriptions, and features:

### **Specifications:**
- **Manufacturer:** National Semiconductor (NS)  
- **Type:** Dual White LED Charge Pump  
- **Input Voltage Range:** 2.7V to 5.5V  
- **Output Current:** Adjustable up to 32mA per LED  
- **Efficiency:** Up to 90%  
- **Switching Frequency:** 1MHz (typical)  
- **Package:** 10-pin LLP (Leadless Leadframe Package)  
- **Operating Temperature Range:** -40°C to +85°C  

### **Descriptions:**
- The LM2794BLX is a high-efficiency charge pump designed to drive two white LEDs with constant current.  
- It uses a fractional charge pump (1.5x) to optimize power efficiency.  
- The device includes an internal current regulator to ensure uniform brightness across LEDs.  

### **Features:**
- **Dual Output:** Independently drives two white LEDs.  
- **PWM Dimming Control:** Supports brightness adjustment via PWM input.  
- **Low Noise Operation:** Minimizes interference in sensitive applications.  
- **Soft-Start Function:** Reduces inrush current during startup.  
- **Thermal Shutdown Protection:** Safeguards against overheating.  
- **No External Inductors Required:** Simplifies design and reduces board space.  

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

Application Scenarios & Design Considerations

Current Regulated Switched Capacitor LED Supply with Analog and PWM Brightness Control

Alternative Part Number

  • TPS60230DGSR --: Inductorless regulated charge pump LED driver with similar boost/current-source function and comparable pinout, widely available and pin-compatible in function.
  • MAX1599EUA --: White LED charge-pump driver offering similar regulated current outputs and supply range, suitable drop-in functional replacement.
  • CAT3604V-GT3 --: Charge-pump LED driver with multiple matched current sinks, comparable performance and package options for display backlight applications.
  • MAX1574ETB+T --: Inductorless charge-pump LED driver with multiple current sinks, comparable drive capability and small package, suitable for backlight applications.
  • CAT3644HV3-GT2 --: Fractional charge-pump LED driver offering similar multi-channel current regulation and low external component count for portable displays.
  • MAX1916EZT+T --: Low-dropout white LED bias/current regulator offering a simple alternative for driving LEDs in portable displays.

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