LNBH23L
LNBH23L is LNB SUPPLY/CONTROLLER manufactured by STMicroelectronics.
LNB supply and control IC with step-up and I²C interface
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 receivers output voltage specification Auxiliary modulation input (EXTM pin) facilitates DiSEqC™ 1.X encoding Accurate built-in 22 kHz tone generator suits widely accepted standards Low-drop post regulator and high efficiency step-up PWM with integrated power NMOS allow low power losses Overload and over-temperature internal protections with I²C diagnostic bits LNB short circuit dynamic...
