L9349-LF

批量生产

4通道气门驱动器

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概述
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样片和购买
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质量与可靠性
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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

特别推荐

EDA符号、封装和3D模型

STMicroelectronics - L9349-LF

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符号

Footprints

封装

3D model

3D模型

质量与可靠性

产品型号 Marketing Status 封装 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

产品型号
从分销商订购
从ST订购
供货状态
ECCN (US)
ECCN (EU)
包装类型
封装
温度(ºC) Country of Origin
Budgetary Price (US$)*/Qty
最小值
最大值
L9349-LF 无法联系到经销商,请联系我们的销售办事处
NRND
EAR99 NEC Tube PowerSO-20 -40 150 MALAYSIA 2.48 / 1k
L9349TR-LF 无法联系到经销商,请联系我们的销售办事处
批量生产
EAR99 NEC Tape And Reel PowerSO-20 -40 150 MALAYSIA 2.48 / 1k

L9349-LF

供货状态

NRND

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

2.48 / 1k

ECCN (EU)

NEC

包装类型

Tube

封装

PowerSO-20

Operating Temperature (°C)

(最小值)

-40

(最大值)

150

Budgetary Price (US$)* / Qty

2.48 / 1k

Country of Origin

MALAYSIA

L9349TR-LF

供货状态

批量生产

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

2.48 / 1k

ECCN (EU)

NEC

包装类型

Tape And Reel

封装

PowerSO-20

Operating Temperature (°C)

(最小值)

-40

(最大值)

150

Budgetary Price (US$)* / Qty

2.48 / 1k

Country of Origin

MALAYSIA

(*) 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