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  • The L9352B is designed to drive inductive loads in low side configurations like hydraulic valves used in ABS/ESC systems.

    Integrated active Zener diodes clamp (for channel1 and 2) or free wheeling diodes (for channel 3 and 4) allow the recirculation of the inductive loads.
    All four channels are monitored with a status output. All wiring to the loads and supply pins of the device are controlled. The device is selfprotected against short circuit at the outputs and overtemperature. For each channel, one independent push-pull status output is used for a parallel diagnostic function.
    Channel 3 and 4 work as current controlled channels. The target value of the current is given by the duty cycle (DC) of the 2 kHz PWM input signal.
    The output current is controlled through the output PWM of the power stage. The regulator limits of 10% or 90% are detected and monitored with the status signal. The current is measured during the recirculation phase of the load.
    Using an external clock frequency of 250 kHz, the PWM output frequancy is 3.9 kHz.
    A digital PI (proportional and integrating) regulator is performed in order to internally control the target current basing on the load current measurements.

    主要特性

    • Regulator error control
    • Regulator drift detection
    • Electrostatic discharge (ESD) protection
    • External clock control
    • Ground and supply loss detection
    • Four low-side output driver with protection diagnostics.2 channels designed as conventional switch (rON = 0.2 typ.) with integrated 60 V Zener diodes clamp.2 current controlled channels (rON = 0.2 typ.) with current range from 0 mA to 2.25 A typ. with integrated recirculation diodes.
    • Short circuit protection
    • Output slope control
    • Open load and over load current detection
    • Recirculation path control
    • Selective overtemperature shutdown

电路原理图

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样片和购买

产品型号
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L9352B-TR-LF
批量生产
1000 4.0 PowerSO 36 Tape And Reel -40 150 EAR99
更多信息

Country of Origin:

MALAYSIA

查看供货情况

Distributor availability ofL9352B-TR-LF

代理商名称
地区 库存 最小订购量 Third party link
MOUSER WORLDWIDE 590 1 Order Now

代理商库存报告日期: 2019-12-06

代理商名称

MOUSER

库存

590

Min.Order

1

地区

WORLDWIDE Order Now

代理商库存报告日期: 2019-12-06

立即购买
L9352B-LF
批量生产
1000 4.0 PowerSO 36 Tube -40 150 EAR99
更多信息

Country of Origin:

-

查看供货情况

Distributor availability ofL9352B-LF

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 310 1 Order Now
MOUSER WORLDWIDE 229 1 Order Now

代理商库存报告日期: 2019-12-06

代理商名称

DIGIKEY

库存

310

Min.Order

1

地区

WORLDWIDE Order Now

MOUSER

库存

229

Min.Order

1

地区

WORLDWIDE Order Now

代理商库存报告日期: 2019-12-06

立即购买

L9352B-TR-LF

供货状态

批量生产

数量

1000

单价(US$)

4.0*

Distributor availability ofL9352B-TR-LF

代理商名称
地区 库存 最小订购量 Third party link
MOUSER WORLDWIDE 590 1 Order Now

代理商库存报告日期: 2019-12-06

代理商名称

MOUSER

库存

590

Min.Order

1

地区

WORLDWIDE Order Now

代理商库存报告日期: 2019-12-06

单价(US$)

4

封装

PowerSO 36

包装类型

Tape And Reel

Operating Temperature (°C)

(min)

-40

(max)

150

ECCN (US)

EAR99

Country of Origin

MALAYSIA

L9352B-LF

供货状态

批量生产

数量

1000

单价(US$)

4.0*

Distributor availability ofL9352B-LF

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 310 1 Order Now
MOUSER WORLDWIDE 229 1 Order Now

代理商库存报告日期: 2019-12-06

代理商名称

DIGIKEY

库存

310

Min.Order

1

地区

WORLDWIDE Order Now

MOUSER

库存

229

Min.Order

1

地区

WORLDWIDE Order Now

代理商库存报告日期: 2019-12-06

单价(US$)

4

封装

PowerSO 36

包装类型

Tube

Operating Temperature (°C)

(min)

-40

(max)

150

ECCN (US)

EAR99

Country of Origin

-

(*) 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

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产品型号 供货状态 封装 等级规格 符合RoHS级别 Material Declaration**
L9352B-LF
批量生产
PowerSO 36 汽车 Ecopack2
L9352B-TR-LF
批量生产
PowerSO 36 汽车 Ecopack2

L9352B-LF

Package:

PowerSO 36

Material Declaration**:

PDF XML

Marketing Status

批量生产

Package

PowerSO 36

Grade

Automotive

RoHS Compliance Grade

Ecopack2

L9352B-TR-LF

Package:

PowerSO 36

Material Declaration**:

PDF XML

Marketing Status

批量生产

Package

PowerSO 36

Grade

Automotive

RoHS Compliance Grade

Ecopack2

(**) 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.

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