Texas Instruments LM3503
Dual-Display Constant Current LED Driver
| Part No. | LM3503 |
|---|---|
| Datasheet | LM3503 Download |
| Manufacturer |  Texas Instruments |
| Description | Dual-Display Constant Current LED Driver |
| Buy | Stock & Price |
FEATURES
1●2 Drives up to 4, 6, 8 or 10 White LEDs for Dual Display Backlighting
● >80% Peak Efficiency
● Output Voltage Protection Options: 16V, 25V, 35V & 44V
● Input Under-Voltage Protection
● Internal Soft Start Eliminates Inrush Current
● 1 MHz Constant Switching Frequency
● Analog Brightness Control
● Wide Input Voltage Range: 2.5V to 5.5V
● Low Profile Packages: <1 mm Height – 10 Bump DSBGA – 16 Pin WQFN
APPLICATIONS
● Dual Display Backlighting in Portable devices● Cellular Phones and PDAs
DESCRIPTION
The LM3503 is a white LED driver for lighting applications. For dual display backlighting applications, the LM3503 provides a complete solution. The LM3503 contains two internal white LED current bypass FET (Field Effect Transistor) switches. The white LED current can be adjusted with a DC voltage from a digital to analog converter or RC filtered PWM (pulse-width-modulated) signal at the Cntrl pin. Typical Application L 22 PH D +- VSUPPLY CIN 4.7 PF Sw VIN VOUT1 Cntrl En1 En2 VOU...
