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LNBH29EPTR Datasheet(PDF) 1 Page - STMicroelectronics |
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LNBH29EPTR Datasheet(HTML) 1 Page - STMicroelectronics |
1 / 31 page This is information on a product in full production. March 2013 DocID023065 Rev 3 1/31 31 LNBH29 LNB supply and control IC with step-up and I²C interface Datasheet - production data Features Complete interface between LNB and I²C bus Built-in DC-DC converter for single 12 V supply operation and high efficiency (typ. 93% @ 0.5 A) Selectable output current limit by external resistor Compliant with main satellite receiver output voltage specifications Accurate built-in 22 kHz tone generator suits widely accepted standards EXTM pin, auxiliary 22 kHz modulation input (LNBH29E) extends design flexibility 22 kHz tone waveform integrity guaranteed also at no load condition Low-drop post regulator and high efficiency step-up PWM with integrated power N-MOS allowing low power losses Overload and overtemperature internal protection with I²C diagnostic bits LNB short-circuit dynamic protection +/- 4 kV ESD tolerant on output power pins Applications STB satellite receivers TV satellite receivers PC card satellite receivers Description Intended for analog and digital satellite receivers/Sat-TV and Sat-PC cards, the LNBH29 series is a monolithic voltage regulator and interface IC, assembled in QFN16 (3x3) and QFN16 (4x4) specifically designed to provide the 13 / 18 V power supply and the 22 kHz tone signaling to the LNB down-converter in the antenna dish or to the multi-switch box. In this application field, it offers a complete solution with extremely low component count, low power dissipation together with a simple design and I²C standard interfacing. QFN16 (4x4) / (3x3) Table 1. Device summary Order codes Packages Packaging LNBH29PTR QFN16 (3x3) Tape and reel LNBH29EPTR QFN16 (3x3) Tape and reel LNBH29QTR QFN16 (4x4) Tape and reel LNBH29EQTR QFN16 (4x4) Tape and reel www.st.com |
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