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dc-dc3V升压21V 10W功率高效升压白光LED驱动器

2023-06-05 15:38 作者:senliwell  | 我要投稿

1.2MHz,High Efficiency Boost White LED Driver

SL6608替代RT9293BGJ6


GENERAL DESCRIPTION

  The SL6608 is a step-up converter designed for

driving up to 7 series white LEDs from a single cell

Lithium Ion battery. The SL6608 uses current

mode, fixed frequency architecture to regulate an

LED current, which is measured through an

external current sense resistor. Its low 200mV

feedback voltage reduces power loss and

improves efficiency.

  The SL6608 includes under-voltage lockout,

current limiting and thermal overload protection

preventing damage in the event of an output

overload.

  Optimized operation frequency can meet the

requirement of small LC filters value and low

operation current with high efficiency. Internal soft

start function can reduce the inrush current. Tiny

package type provide the best solution for PCB

space saving and total BOM cost.


FEATURES

   High Efficiency: Up to 90%

   1.2MHz Constant Frequency Operation

   Integrated internal Power MOSFET

   Drives up to 7 Series WLEDs

   Low 200mV Feedback Voltage

   Soft-start/Dimming with wide Frequency

Range

   UVLO, Thermal Shutdown

   Internal Current limit

   Over Voltage Protection

   Small LC Filter

   Minimize the External Component

   <1μA Shutdown Current

   SOT23-6 Package


APPLICATIONS

   Camera Flash White LED

   Mobile Phone, Smart Phone LED Backlight

   PDA LED Backlight

   Digital Still Cameras

   Camcorder


TYPICAL APPLICATION






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