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LM3402/LM3402HV,pdf,datasheet,
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2010-03-05
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The LM3402/02HV are monolithic switching regulators designed
to deliver constant currents to high power LEDs. Ideal
for automotive, industrial, and general lighting applications,
they contain a high-side N-channel MOSFET switch with a
current limit of 735 mA (typical) for step-down (Buck) regulators.
Hysteretic control with controlled on-time coupled with
an external resistor allow the converter output voltage to adjust
as needed to deliver a constant current to series and
series - parallel connected arrays of LEDs of varying number
and type, LED dimming by pulse width modulation (PWM),
broken/open LED protection, low-power shutdown and thermal
shutdown complete the feature set.
to deliver constant currents to high power LEDs. Ideal
for automotive, industrial, and general lighting applications,
they contain a high-side N-channel MOSFET switch with a
current limit of 735 mA (typical) for step-down (Buck) regulators.
Hysteretic control with controlled on-time coupled with
an external resistor allow the converter output voltage to adjust
as needed to deliver a constant current to series and
series - parallel connected arrays of LEDs of varying number
and type, LED dimming by pulse width modulation (PWM),
broken/open LED protection, low-power shutdown and thermal
shutdown complete the feature set.
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