LNBH21 is a monolithic voltage regulator and interface IC for satellite receivers, suitable for analog and digital satellite STB receivers/SatTV, sets/PC cards. It offers a complete solution with extremely low component count, low power dissipation and simple design, providing 13/18V power supply and 22KHz tone signalling to the LNB downconverter in the antenna or to the multiswitch box.
The LNBH21 is a monolithic voltage regulator and interface IC assembled in a POWER SO-20 package. It is specifically designed to provide the 13/18V power supply and 22KHz tone signalling to LNB downconverters or multiswitch boxes. The device offers a complete solution with low component count and simple I2C standard interfacing.
| Package | POWER SO-20 |
|---|---|
| Supply Voltage Range | 8V to 15V |
| Output Current Limit (Typical) | 94% @ 750mA |
| Selectable Output Current Limits | 450mA / 750mA |
| Tone Oscillator Frequency | 22KHz |
| Operating Junction Temperature Range | -40 to +125 °C |
| ESD Tolerance | ±4KV |
The typical efficiency is 94% at 750mA.
Yes, it supports bi-directional DiSEqC 2.0 with a built-in 22KHz tone detector.
The device offers two selectable output current limits: 450mA and 750mA.