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The L9349 is a monolithic IC designed to drive inductive loads in low side configurations like hydraulic valves used in ABS systems.
Particular care has been taken to protect the device against failures, to avoid electromagnetic interferences and to offer extensive real time diagnostics.
The internal pull down current source at the ENable and INput pins assures, that the device is switched off, in case of open input conditions.
An output voltage slope limitation is implemented to reduce the EMI.
The device is equipped with an integrated Zener diodes clamp for fast inductive load current recirculation. This structure limits the output voltage during the recirculation phase to 50V.
The device is self-protected against short circuit at the outputs and overtemperature.
For the real time error diagnosis, the voltage and the current of the outputs are compared with internally fixed thresholds to recognize open load in OFF and ON conditions.
The output voltages are also compared with each other in OFF condition with a fixed offset, in order to recognize load bypasses.
If the over load current threshold is exceeded, the output current will be limited internally during the diagnostic overload delay switch-off time.
All four channels are monitored with a status output. The diagnostic output level in connection with different enable and input conditions allows it to recognize the different fail states.主な特徴
- Electrostatic discharge (ESD) protection
- Selective overtemperature shutdown
- Overload disable
- Load bypass detection
- Four low-side output driver with protection diagnostics designed as a conventional switch
2 channels with 5 A output current capability and rON = 0.2 typ. 2 channels with 3 A output current capability and rON = 0.3 typ. - Output slope control
- Integrated 60 V Zener diodes output clamping structure
- Open load detection in ON and OFF condition
- Signal and power ground loss shutdown
- Short circuit protection
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サンプル & 購入
| 製品型番 | 製品ステータス | パッケージ | 梱包タイプ | 温度（℃） | ECCN (US) | Country of Origin | Approximate Price (US$)* / Qty | STからオーダー | 販売代理店からオーダー | |
|---|---|---|---|---|---|---|---|---|---|---|
| 最小 | 最大 | |||||||||
| L9349-LF | 量産中 | PowerSO-20 | Tube | -40 | 150 | EAR99 | MALAYSIA | 3.38 / 1k | 販売代理店に在庫がない場合は、STのセールスオフィスまでお問い合わせください | |
| L9349TR-LF | 量産中 | PowerSO-20 | Tape And Reel | -40 | 150 | EAR99 | MALAYSIA | 3.38 / 1k | 購入 | 在庫チェック |
L9349-LF
製品ステータス
量産中単価（US$）
1.8Approximate Price (US$)* / Qty
3.38 / 1k（*）概算用の希望小売単価（US$）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。
| 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** |
|---|---|---|---|---|---|
| L9349-LF | 量産中 | PowerSO-20 | Automotive | Ecopack2 | |
| L9349TR-LF | 量産中 | PowerSO-20 | Automotive | Ecopack2 |
(**) st.comで提供している材料宣誓書は、パッケージ･ファミリ内で最も一般的に使用されているパッケージに基づく汎用ドキュメントの場合があります。そのため、特定の製品では100%正確ではない可能性があります。特定の製品情報については、セールスサポートまでお問い合わせください
