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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
サンプル & 購入
| 製品型番 | パッケージ | 梱包タイプ | 製品ステータス | 概算価格（USS） | 数量 | ECCN (US) | Country of Origin | 販売代理店からオーダー | STからオーダー |
|---|---|---|---|---|---|---|---|---|---|
| LNBH25SPQR | QFN-24L | Tape And Reel |
Active
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0.863 | 10000 | EAR99 | MALAYSIA | 在庫チェック |
LNBH25SPQR
パッケージ
QFN-24L梱包タイプ
Tape And ReelUnit Price (US$)
0.863*(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors
ビデオ
評価ツール
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写真 品名 製造元 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
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| 製品型番 | 製品ステータス | パッケージ | グレード | RoHSコンプライアンスグレード | 材料宣誓書** |
|---|---|---|---|---|---|
| LNBH25SPQR |
Active
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QFN-24L | インダストリアル | Ecopack2 |
LNBH25SPQR
Package:
QFN-24LMaterial Declaration**:
XML(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.
