Product overview
概要
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.
-
All features
- 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
回路ダイアグラム
All resources
| Resource title | Latest update |
|---|
製品スペック (1)
| Resource title | Latest update | |||
|---|---|---|---|---|
| 19 Sep 2016 |
19 Sep 2016
|
アプリケーションノート (2)
| Resource title | Latest update | |||
|---|---|---|---|---|
| 24 Mar 2020 |
24 Mar 2020
|
|||
| 24 Mar 2020 |
24 Mar 2020
|
ユーザ･マニュアル (1)
| Resource title | Latest update | |||
|---|---|---|---|---|
| 01 Nov 2019 |
01 Nov 2019
|
EDA Symbols, Footprints and 3D Models
STMicroelectronics - L9349-LF
Speed up your design by downloading all the EDA symbols, footprints and 3D models for your application. You have access to a large number of CAD formats to fit with your design toolchain.
Symbols
Footprints
3D models
品質 & 信頼性
| 製品型番 | Marketing Status | 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 |
NRND
|
PowerSO-20 | オートモーティブ | Ecopack2 | |
| L9349TR-LF |
量産中
|
PowerSO-20 | オートモーティブ | 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
サンプル & 購入
| 製品型番 | 販売代理店から購入 | STから購入 | 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$)*/Qty | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 最小 | 最大 | |||||||||||
| L9349-LF |
販売代理店に在庫がない場合は、STのセールス･オフィスまでお問い合わせください |
NRND
|
EAR99 | NEC | Tube | PowerSO-20 | -40 | 150 | MALAYSIA | 1.8 / 1k | ||
| L9349TR-LF | 1 distributors |
量産中
|
EAR99 | NEC | Tape And Reel | PowerSO-20 | -40 | 150 | MALAYSIA | 1.8 / 1k | ||
製品ステータス
NRNDECCN (US)
EAR99Budgetary Price (US$)*/Qty
1.8 / 1k製品ステータス
量産中ECCN (US)
EAR99Budgetary Price (US$)*/Qty
1.8 / 1k（*）概算用の希望小売単価（US$）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。
