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LNBH25LS 数据表(PDF) 1 Page - STMicroelectronics |
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LNBH25LS 数据表(HTML) 1 Page - STMicroelectronics |
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1 / 30 page ![]() March 2016 DocID026753 Rev 3 1/30 This is information on a product in full production. www.st.com LNBH25LS 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 (15 programmable levels) Accurate built-in 22 kHz tone generator suits widely accepted standards 22 kHz tone waveform integrity guaranteed at no-load condition Low drop post regulator and high efficiency step-up PWM with integrated power NMOS allowing low power losses Overload and overtemperature internal protections 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 LNBH25LS is a monolithic voltage regulator and interface IC, assembled in QFN24L (4x4 mm) specifically designed to provide 13/18 V power supply and 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 and low power dissipation together with a simple design and I²C standard interface. Table 1: Device summary Order code Package Packing LNBH25LSPQR QFN24L (4x4 mm) Tape and reel |
类似零件编号 - LNBH25LS |
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类似说明 - LNBH25LS |
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