LNBH25L：LNB supply and control IC with step-up and I²C interface
Intended for analog and digital satellite receivers/Sat-TV and Sat-PC cards, the LNBH25L is a monolithic voltage regulator and interface IC, assembled in QFN24 (4x4) specifically designed to provide the 13/18 V power supply and the 22 kHz tone signalling 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 interfacing.
Key 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
- Accurate built-in 22 kHz tone generator suits widely accepted standards
- 22 kHz tone waveform integrity guaranteed also at no load condition
- Low-drop post regulator and high efficiency step-up PWM with integrated power N-MOS allowing low power losses
- Overload and overtemperature internal protection with I²C diagnostic bits
- LNB short-circuit dynamic protection
- +/- 4 kV ESD tolerant on output power pins
产品规格
应用手册
手册
解决方案评估工具
| 型号 | 制造商 | Description |
|---|
| STEVAL-CBL013V1 | | Single LNB supply and control IC DiSEqC 1.x compliant based on the LNBH25L |
样片和购买
| 型号 | Package | Packing Type | Unit Price (US$)
* | Quantity | ECCN (EU) | ECCN (US) | Country of Origin |
|---|
| LNBH25LPQR | QFN-24L | Tape And Reel | 0.703 | 1000 | NEC | EAR99 | MALAYSIA |
质量和可靠性
