DESCRIPTION The EUP2586 is a high frequency, asynchronous boost converter designed for driving white LED arrays. With integrated 0.19_ power switch and 2A current limit , the EUP2586 provide
EUP2586-Small Package,High Performance,Asynchronies Boost for WLED Driver
DESCRIPTION
The EUP2586 is a
high frequency, asynchronous boost converter designed for driving white
LED arrays. With integrated 0.19_ power switch and 2A current limit ,
the EUP2586 provides enough driving capability for 7”~10” LCD
backlighting(13 strings of 3 or 4 LEDs each). The device uses current
mode, fixed frequency architecture to regulate the LED current, which is
measured through an external current sense resistor. Its low 200mV
feedback voltage reduces power loss and improves efficiency.
With the built-in over-voltage protection function (OVP), the SW pin
monitors the output voltage and turn off the device if an over-voltage
condition is present due to an open circuit condition. Other features
include soft start, over-current limiting, thermal protection and
under-voltage lockout.
The EUP2586 is available in the tiny
TSOT23-5 package to provide the best solution for PCB space saving and
total BOM cost.
FEATURES
‧ 2.6V to 5.5V Input Range
‧ Internal 0.3_, 18V MOSFET Switch
‧ High Efficiency Up to 93%
‧ Lower Surface Temperature at ILED=180mA
‧ 1MHz Switching Frequency
‧ 2A Current Limit
‧ Open LED Overvoltage Protection
‧ Internal Soft-Start
‧ PWM and DC Dimming Control
‧ Available in TSOT23-5 Package
‧ RoHS Compliant and 100% Lead (Pb)-Free Halogen-Free
APPLICATIONS
‧ 7” to 10” LCD Panels
‧ MID Backlighting
‧ Netbook Backlighting
‧ Portable Media Players
‧ GPS Navigation Systems


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