LNBH24L：Dual LNBS supply and control IC with step-up and I2C interface
Intended for analog and digital DUAL satellite receivers/Sat-TV, Sat-PC cards, the LNBH24L is a monolithic voltage regulator and interface IC, assembled in QFN 5x5 ePAD, specifically designed to provide the 13 / 18 V power supply and the 22 kHz tone signaling for two independent LNB down-converters in the antenna dishes and/or multi-switch box. In this application field, it offers a dual tuner STBs complete solution with extremely low component count, low power dissipation together with simple design and I²C standard interfacing.
Key Features
- +/- 4 kV ESD tolerant on output power pins
- LNB short circuit dynamic protection
- Overload and over-temperature internal protections with I²C diagnostic bits
- Low-drop post regulator and high efficiency step-up PWM with integrated power N-MOS allow low power losses
- Complete interface between LNBS and I²C bus
- Selectable output current limit by external resistor
- Built-in DC-DC converter for single 12 V supply operation and high efficiency (typ. 93%@0.5 A)
- Auxiliary modulation input (EXTM) facilitates DiSEqC 1.X encoding
- Output voltage and output current level diagnostic feedback by I²C bits
- Compliant with main satellite receivers output voltage specification
产品规格
应用手册
手册
样片和购买
| 型号 | Package | Packing Type | Unit Price (US$)
* | Quantity | ECCN (EU) | ECCN (US) | Country of Origin |
|---|
| LNBH24LQTR | VFQFPN 32 5x5x1.0 | Tape And Reel | 1.586 | 1000 | NEC | EAR99 | MALAYSIA |
质量和可靠性
