Ver 1.4
BCT3661C
White LED driver with digital pulse brightness control
Features
Description
BCT3661C is a boost converter that drives up
to 14 LEDs in 7 series 2 parallels. It runs at
600kHz fixed switching frequency to reduce
output ripple and EMI, improve conversion
efficiency, and allow for the use of small
external components. During the operation, the
LED current can be controlled by using the
1-wire digital interface through the CTRL pin.
BCT3661C does not burst LED current,
therefore, it does not generate audible noise on
the output capacitor. The device integrated
open LED protection, that disables the
BCT3661C to prevent the output from
exceeding the absolute to prevent the output
from exceeding the absolute maximum ratings
during open LED conditions. The BCT3661C is
available in a space saving 2mm x 2mm 6-pin
DFN package and is specified over the -40℃ to
85℃ extended temperature range.
3.0V to 5.5V Input Voltage Range
28V Open LED Protection for up to 7 LEDs
in series
Max current 50mA
Current accuracy,
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