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HV9963 Datasheet (PDF) - Supertex, Inc

HV9963 Datasheet PDF - Supertex, Inc
No. de pieza HV9963
Descarga  HV9963 Descarga

Tamaño del archivo   725.43 Kbytes
Page   12 Pages
Fabricante Electrónico  SUTEX [Supertex, Inc]
Página de inicio  http://www.supertex.com
Logo SUTEX - Supertex, Inc
Descripción Electrónicos Closed Loop LED Driver with Enhanced PWM Dimming

HV9963 Datasheet (PDF)

Go To PDF Page Descarga Datasheet
HV9963 Datasheet PDF - Supertex, Inc

No. de pieza HV9963
Descarga  HV9963 Click to download

Tamaño del archivo   725.43 Kbytes
Page   12 Pages
Fabricante Electrónico  SUTEX [Supertex, Inc]
Página de inicio  http://www.supertex.com
Logo SUTEX - Supertex, Inc
Descripción Electrónicos Closed Loop LED Driver with Enhanced PWM Dimming

HV9963 Datasheet (HTML) - Supertex, Inc

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HV9963 Detalles de producto

General Description
The HV9963 is a current mode control LED driver IC designed to control single switch PWM converters (buck, boost, buck-boost or SEPIC) in a constant frequency mode. The controller uses a peak current-mode control scheme (with programmable slope compensation) and includes an internal transconductance amplifier to accurately control the output current over all line and load conditions. Multiple HV9963s can be synchronized to each other or to an external clock using the SYNC pin. The IC also provides a disconnect switch gate drive output, which can be used to disconnect the LEDs in case of a fault condition using an external disconnect FET. The 10V external FET drivers allow the use of standard level FETs. The low voltage 5.0V AVDD is used to power the internal logic and also acts as a reference voltage to set the current level.

Features
► Switch mode controller for single switch converters
   ● Buck
   ● Boost
   ● Buck-boost and SEPIC
► High output current accuracy
► High PWM dimming ratio (>5000:1)
► Internal 40V linear regulator
► Internal ±2% voltage reference
► Constant frequency operation with sync capability
► Programmable soft start
► 10V GATE drivers
► Hiccup mode protection for both short circuit and open circuit conditions

Applications
► RGB or white LED backlighting
► Battery powered LED lamps
► Other DC/DC LED drivers




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