L9349-LF

批量生产
Design Win

4通道气门驱动器

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产品概述

描述

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.

  • 所有功能

    • Electrostatic discharge (ESD) protection
    • Selective overtemperature shutdown
    • Overload disable
    • Load bypass detection
    • Four low-side output driver with protection diagnostics designed as a conventional switch2 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

电路原理图

EDA符号、封装和3D模型

STMicroelectronics - L9349-LF

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质量与可靠性

产品型号 Marketing Status 等级规格 符合RoHS级别 材料声明**
L9349-LF
NRND
PowerSO-20 汽车应用 Ecopack2
L9349TR-LF
批量生产
PowerSO-20 汽车应用 Ecopack2

L9349-LF

Package:

PowerSO-20

Material Declaration**:

PDF XML

Marketing Status

NRND

Package

PowerSO-20

Grade

Automotive

RoHS Compliance Grade

Ecopack2

L9349TR-LF

Package:

PowerSO-20

Material Declaration**:

PDF XML

Marketing Status

批量生产

Package

PowerSO-20

Grade

Automotive

RoHS Compliance Grade

Ecopack2

(**) st.com上提供的材料声明表单可能是基于包装系列中最常用的封装的通用文档。因此,它们可能不是100%适用于特定的设备。有关特定设备的信息,请联系 销售支持

样片和购买

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包装类型
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L9349-LF
Available at distributors

经销商的可用性 L9349-LF

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代理商库存报告日期:

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L9349TR-LF
Available at distributors

经销商的可用性 L9349TR-LF

代理商名称
地区 库存 最小订购量 第三方链接

代理商库存报告日期:

无法联系到经销商,请联系我们的销售办事处

L9349-LF NRND

Budgetary Price (US$)*/Qty:
-
包:
包装类型:
RoHS:
Country of Origin:
ECCN (US):
ECCN (EU):

产品型号:

L9349-LF

Operating Temperature (°C)

Min:

Max:

L9349TR-LF 批量生产

Budgetary Price (US$)*/Qty:
-
包:
包装类型:
RoHS:
Country of Origin:
ECCN (US):
ECCN (EU):

产品型号:

L9349TR-LF

Operating Temperature (°C)

Min:

Max:

代理商名称

代理商库存报告日期:

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(*) 建议转售单价(美元)仅用于预算用途。如需以当地货币计价的报价,请联系您当地的 ST销售办事处 或我们的 经销商