STMicroelectronics LNBH26S
the LNBH26S is a monolithic voltage regulator and interface IC, assembled in QFN24 4 x 4 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. The DSQIN is a logic input pin which activates the 22 kHz tone to the VOUT pin, by using the LNBH26S integrated tone generator.| Part No. | LNBH26S |
|---|---|
| Datasheet | LNBH26S Download |
| Manufacturer |  STMicroelectronics |
| Description | Dual LNBS supply and control I2C |
| Buy | Stock & Price |
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 specification (15 programmable levels)
● Accurate built-in 22 kHz tone generator suits widely accepted standards
● 22 kHz tone waveform integrity guaranteed at no-load condition as well
● Low drop post regulator and high efficiency step-up PWM with integrated power NMOS allowing low power losses
● LPM function (low power mode) to reduce dissipation
● 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 receivers/Sat-TV, and Sat-PC cards, In this application field, it offers...
