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LNBH26LSPQR Datasheet(PDF) 1 Page - STMicroelectronics |
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LNBH26LSPQR Datasheet(HTML) 1 Page - STMicroelectronics |
1 / 33 page December 2013 DocID025504 Rev 1 1/33 This is information on a product in full production. www.st.com LNBH26LS Dual LNBS supply and control IC with step-up and I²C interface Datasheet - production data Features Complete interface between then 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 specification (8 programmable levels) Accurate built-in 22 kHz tone generator suits widely accepted standards 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 DUAL satellite receiver/Sat-TV, Sat-PC cards, the LNBH26LS is a monolithic voltage regulator and IC interface, assembled in QFN24 (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 dishes or to the multi-switch box. In this application field, it offers a complete solution for dual tuner satellite receivers with extremely low component count, low power dissipation together with simple design and I²C standard interfacing. Table 1: Device summary Order code Package Packaging LNBH26LSPQR QFN24 (4x4) Tape and reel |
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