LNBH25LS Datasheet | STMicroelectronics

LNB supply and control IC with step-up and I²C interface - production data Features - plete 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 - pliant with main satellite receiver output voltage specifications (15 programmable levels) - Accurate built-in 22 k Hz tone generator suits widely accepted standards - 22 k Hz 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 k V 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 k Hz tone signaling to the LNB down-converter in the antenna dish or to the multi-switch box. In this application field, it offers a plete solution with extremely low ponent 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 March 2016 Doc ID026753 Rev 3 This is information on a product in full production. 1/30...