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LNBH23

STMicroelectronics
Part Number LNBH23
Manufacturer STMicroelectronics
Description LNBs supply/controller
Published Jan 14, 2009
Detailed Description LNBH23 LNBs supply and control IC with step-up and I²C interface Features ■ Complete interface between LNB and I²C bus...
Datasheet PDF File LNBH23 PDF File

LNBH23
LNBH23

Overview
LNBH23 LNBs supply and control IC with step-up and I²C interface Features ■ Complete interface between LNB and I²C bus ■ Built-in DC-DC converter for single 12 V supply operation and high efficiency (typ.
93% @ 0.
75 A), with integrated NMOS ■ Selectable output current limit by external resistor ■ Compliant with main satellite receiver systems specifications ■ New accurate built-in 22 kHz tone generator suits widely accepted standards (patent pending) ■ Fast oscillator start-up facilitates DiSEqC™ encoding ■ Built-in 22 kHz tone detector supports bidirectional DiSEqC™ 2.
0 ■ Very low-drop post regulator and high efficiency step-up PWM with integrated power NMOS allow low power losses ■ Two o...


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