DatasheetsPDF.com

LX27901

Microsemi Corporation
Part Number LX27901
Manufacturer Microsemi Corporation
Description High Performance LED Controller
Published Jan 31, 2015
Detailed Description WWW.Microsemi .COM LX27901 ® High Performance LED Controller TM PRODUCTION DATASHEET DESCRIPTION KEY FEATURES The LX...
Datasheet PDF File LX27901 PDF File

LX27901
LX27901


Overview
WWW.
Microsemi .
COM LX27901 ® High Performance LED Controller TM PRODUCTION DATASHEET DESCRIPTION KEY FEATURES The LX27901 is a high performance LED Direct PWM input dimming operation can controller optimized for LCD-TV and other be realized by inputting a dimming pulse multi-lamp LCD display systems and train to DIM pin directly.
provides a cost competitive solution for off- The ACU_BRITE algorithm allows the DC PFC LED drive applications.
to DC converter to be turned off when the The controller provides a pair of PWM digital dimming operation is at off state to drive signals with adequate capacity to drive eliminate no-load power losses.
The a half bridge or other double ended DC to controller also provides a proprietary DC converter circuit with the addition of synchronous regulation function to allow the simple external circuitry to provide safety user to control the LED current and dimming isolation.
operation from an un-regulated switching The device includes a regulated 5.
25V power supply source to minimize the number output (VDD) activated by the ENABLE of power conversion stages and the input working from the VIN input voltage of associated losses and component costs.
In up to 27V.
VDD is capable of providing synchronous regulation mode, AOUT and 5mA source current to external circuitry BOUT form a pair of drive signals to control while supplying the on chip driver stage and the LED string pairs in AC current mode, the control circuitry.
and COUT provides another option to The controller allows the user to utilize control the LED in DC current mode.
two different converter drive schemes, LLC A versatile set of system monitoring and resonant or PWM control mode, selected by protection functions are incorporated in the the signal level at ENABLE pin, to best fit a LX27901 design to provide reliable wide spectrum of application needs.
protection of the device and the system.
In addition, a proprietary ACU_BRITE algorithm is incorp...


Similar Datasheet


@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site. (Privacy Policy & Contact)