概述
样片和购买
解决方案
资源
工具与软件
质量与可靠性
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  • The L9409 is a monolithic multifunction alternator voltage regulator intended for use in automotive applications.

    The device regulates the output of an automotive generator by controlling the field winding current by means of either an analog fixed frequency PWM signal or digital fixed frequency PWM signal (LRC). The Load Response Control function is activated in order to eliminate IC engine speed fluctuation and vibrations caused by the insertion of sudden electrical loads during alternator low speed operations (f < 310 Hz). Both the analog and digital duty cycle are applied to a high side driver.
    The device is able to regulate the voltage either using a feedback signal from B pin or from S pin depending on application needs. S pin is intended to have a clear direct connection with the positive terminal of the car battery. If this connection gets lost the device will regulate voltage using B pin giving a fail safe functionality.
    Using L pin is possible to sense key switch and a pre-excitation duty cycle is applied on the field coil in order to start phase voltage sensing. In the case L connection gets lost, device starts to generate using residual magnetism of the generator.
    Field, lamp and relay drivers are protected against short circuit.

    主要特性

    • IC regulator for 12 V type alternator
    • Fixed frequency regulation loop
    • 130 mΩ high side field driver
    • Fail safe device with double sensing of battery voltage (VB and VS)
    • Load response control (LRC) function activates after an initial time delay
    • Self start function from phase frequency
    • “Z” shaped regulation curve compliant with VW specification.
    • Key recognition from L input
    • Field driver, lamp driver and relay driver short protection
    • Complex diagnostics
    • Thermal shutdown at 175 °C

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      Alternator voltage regulator with load response control
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      DS8833

      Alternator voltage regulator with load response control

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**
L9409F
批量生产
MW 8L 汽车应用 Ecopack1

L9409F

Package:

MW 8L

Material Declaration**:

Marketing Status

批量生产

Package

MW 8L

Grade

Automotive

RoHS Compliance Grade

Ecopack1

(**) 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
L9409F Available at 3 distributors

...的经销商可用性L9409F

代理商名称
地区 库存 最小订购量 第三方链接
DIGIKEY WORLDWIDE 500 1 马上订购
MOUSER WORLDWIDE 485 1 马上订购
RUTRONIK EUROPE 750 25 马上订购

代理商库存报告日期: 2020-09-22

代理商名称

DIGIKEY

库存

500

Min.Order

1

地区

WORLDWIDE 马上订购

MOUSER

库存

485

Min.Order

1

地区

WORLDWIDE 马上订购

RUTRONIK

库存

750

Min.Order

25

地区

EUROPE 马上订购

代理商库存报告日期: 2020-09-22

立即购买
批量生产
EAR99 NEC Tube MW 8L -40 150 MOROCCO 3.9 / 1k

L9409F

供货状态

批量生产

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

3.9 / 1k

...的经销商可用性L9409F

代理商名称
地区 库存 最小订购量 第三方链接
DIGIKEY WORLDWIDE 500 1 马上订购
MOUSER WORLDWIDE 485 1 马上订购
RUTRONIK EUROPE 750 25 马上订购

代理商库存报告日期: 2020-09-22

代理商名称

DIGIKEY

库存

500

Min.Order

1

地区

WORLDWIDE 马上订购

MOUSER

库存

485

Min.Order

1

地区

WORLDWIDE 马上订购

RUTRONIK

库存

750

Min.Order

25

地区

EUROPE 马上订购

代理商库存报告日期: 2020-09-22

ECCN (EU)

NEC

包装类型

Tube

封装

MW 8L

Operating Temperature (°C)

(最小值)

-40

(最大值)

150

Budgetary Price (US$)* / Qty

3.9 / 1k

Country of Origin

MOROCCO

(*) 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