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/Title (NCL30105 - Constant Off Time PWM Current-Mode Controller for LED Applications)
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2012-05-31T14:24:47-07:00
BroadVision, Inc.
2020-09-08T11:17:58+02:00
2020-09-08T11:17:58+02:00
Acrobat Distiller 10.1.3 (Windows)
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NCL30105 - Constant Off Time PWM Current-Mode Controller for LED Applications
ON Semiconductor
The NCL30105 is a peak current controlled fixed off time controller
designed for LED driver applications in which the LEDs are operated
in deep Continuous Conduction Mode (CCM) without requiring slope
compensation. Featuring an adjustable off time generator, the
controller can drive a MOSFET up to a 500 kHz switching frequency.
A dedicated dimming pin enables the use of a pulse−width
modulated logic signal to dim the LEDs directly. The soft−start pin
creates a startup sequence that slowly ramps up the peak current and
enables the adjustment of the peak current setpoint for analog
dimming control. The device features robust protection features to
detect switch overcurrent faults and to detect maximum on time
events.
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