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L4954 is a quad output voltage regulator and a three output high side driver.
The IC includes monitoring circuitry to warn the microprocessor of a low voltage condition: the LVWarn, output, sensing the slow dropping of STCAP pins voltage, gives the microprocessor time to store data.
A reset output is generated at REG4’s decay.
External protection must be provided for reverse battery protection.主な特徴
- 4 regulators:
- 10 V (40 mA) low dropout
- 8.5 V (175 mA)
- 5 V (650 mA)
- 5 V (100 mA) standby
- 3 high side drivers:
- 2 A (HSD1)
- 0.3 A (HSD2 & HSD3)
- No external charge pump capacitors are required
- Standby mode controlled by 3 input pins:
- EN1 for REG1, REG2, REG3 and HSD1
- EN2 for HSD2
- EN3 for HSD3
- Individual thermal shutdown
- Logic outputs for supply undervoltage:
- LVWARN
- リセット
- Independent current limiting
- Overvoltage shutdown
- Short circuit protection
- Load dump protection and overvoltage
- Shutdown
- 4 regulators:
ダウンロード 
サンプル & 購入
| 製品型番 | パッケージ | 梱包タイプ | 温度（℃） | 製品ステータス | 概算価格（USS） | 数量 | ECCN (US) | Country of Origin | 詳細 | 販売代理店からオーダー | STからオーダー | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 最小値 | max | |||||||||||
| L4954 | MW 15L | Tube | -40 | 85 | アクティブ | - | - | EAR99 | MOROCCO | 販売代理店に在庫がない場合は、STのセールスオフィスまでお問い合わせください | ||
L4954
パッケージ
MW 15L梱包タイプ
TubeUnit Price (US$)
*(*) 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
| 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 | Material Declaration** |
|---|---|---|---|---|---|
| L4954 | アクティブ | MW 15L | オートモーティブ | Ecopack1 | |
L4954
Package:
MW 15LMaterial Declaration**:
(**) 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.
