標題: dc-dc3V升壓21V 10W功率高效升壓白光LED驅(qū)動器 [打印本頁] 作者: 愛吃貓的魚1 時間: 2023-6-5 17:48 標題: dc-dc3V升壓21V 10W功率高效升壓白光LED驅(qū)動器 1.2MHz,High Efficiency Boost White LED Driver SL6608兼容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
