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LM3520 |
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| Part Number | LM3520 |
| Manufacturer | National Semiconductor |
| Description | The LM3520 is a dual step-up DC/DC converter, designed to drive up to 5 white LEDs with a constant current and to power an organic LED display with a constant voltage. A single external resistor is us... |
| Features |
include a low-side NFET switch that can turn off the LED string with no DC current path to ground. The LM3520 is available in a small 14-pin thermallyenchanced LLP package.
Features
n Integrated OLED and white-LED driver n 80% efficiency n Drives up 5 LEDs at 20mA/3.6V and 4 LEDs at 30mA/3.6V for main-display n Up to 20V @ 50mA/3.6V for sub-display n True shutdown isolation n Small External Components n 1 MHz Switching Frequency n 23V OverVoltage Protection n Wide Input Voltage Range: 2.7V to 5.5V n Cycle-By-Cycle Current Limit n PWM Dimming Control n Low Profile 14-Pin LLP(3mm x 4mm x 0.8mm)... |
| Document |
 LM3520 Data Sheet
PDF 963.36KB |
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