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400KHz 42V Boost 2~12 Series 1~3W LED Units Constant Current Driver XL6003
Features
Wide 3.6V to 36V Input Voltage Range
0.23V FB adjustable LED drive current
Directly drive 12 Series 1W LED at
VIN>=8V
Fixed 400KHz Switching Frequency
2A Switching Current Capability
Up to 92% efficiency
Excellent line and load regulation
EN PIN TTL shutdown capability &
With PWM Dimming Function
Internal Optimize Power MOSFET
Built in Soft-Start Function
Built in Frequency Compensation
Built in Thermal Shutdown Function
Built in Current Limit Function
Available in SOP8 package
Applications
LED Lighting
Boost constant current driver
LED Display
General Description
The XL6003 regulator is fixed frequency PWM
Boost (step-up) LED constant current driver,
capable of driving Series 1~3W LED units with
excellent line and load regulation. The regulator is
simple to use because it includes internal frequency
compensation and a fixed-frequency oscillator so
that it requires a minimum number of external
components to work.
The XL6003 could directly drive 12 Series 1W LED
units at VIN>=8V and 12 Series 3W LED units at
VIN>=24V.
The PWM control circuit is able to adjust the
duty ratio linearly from 0 to 95%. An enable
function, an over current protection function
is built inside. An internal compensation
block is built in to minimize external
component count.
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