-
Intended for analog and digital satellite receivers/Sat-TV and Sat-PC cards, the LNBH25S is a monolithic voltage regulator and interface IC, assembled in QFN24L (4x4 mm) specifically designed to provide 13/18 V power supply and 22 kHz tone signaling 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 interface.
主な特徴
- 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 (15 programmable levels)
- Accurate built-in 22 kHz tone generator suits widely accepted standards
- 22 kHz tone waveform integrity guaranteed at no-load condition
- 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 protections with I²C diagnostic bits
- LNB short-circuit dynamic protection
- +/- 4 kV ESD tolerant on output power pins
ビデオ
評価ツール
-
-
画像 製品型番 製造者 概要 
STEVAL-LNBH02 ST Power supply evaluation board for LNB based on the LNBH25S STEVAL-LNBH03 ST Power supply evaluation board for LNB based on the LNBH25S 製品型番Power supply evaluation board for LNB based on the LNBH25S
Power supply evaluation board for LNB based on the LNBH25S
-
品質 & 信頼性
サンプル & 購入
| 製品型番 | 販売代理店からオーダー | STからオーダー | 製品ステータス | ECCN (US) | ECCN (EU) | 梱包タイプ | パッケージ | 温度（℃） | Country of Origin | Budgetary Price (US$)*/Qty | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 最小 | 最大 | |||||||||||
| LNBH25SPQR | 2 distributors | 購入 | 量産中 | EAR99 | NEC | Tape And Reel | QFN-24L | - | - | MALAYSIA | 0.863 / 1k | |
（*）概算用の希望小売単価（US$）です。現地通貨でのお見積りについては、STのセールス･オフィスまたは販売代理店までお問い合わせください。
