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Details, datasheet, quote on part number:LM3503
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| Part: | LM3503 |
| Category: | Optoelectronics => Drivers/Controllers => LEDs |
| Description: | Dual-Display Constant Current LED Driver with Analog Brightness Control
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.
With no external compensation, cycle-by-cycle current limit, output over-voltage protection, input under-voltage protection, and dynamic white LED current control capability, the LM3503 offers superior performance over other step-up white LED drivers.
Features
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 MicroSMD
16 Pin LLP
Applications
Dual-Display Display Backlighting in Portable devices
Cellular Phones and PDAs |
| Company: | National Semiconductor Corporation |
| Datasheet: | Download LM3503 datasheet File size : 1092 kB |
| Request For quote: | Find where to buy LM3503
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