L9409

批量生产

Alternator voltage regulator with load response control

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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

样片和购买

产品型号
封装
包装类型
温度(ºC) 供货状态
ECCN (US)
Country of Origin
Budgetary Price (US$)*/Qty
从ST订购
从分销商订购
最小值
最大值
L9409F MW 8L Tube -40 150
批量生产
EAR99 MOROCCO 3.9 / 1k 立即购买 查看供货情况

...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 260 25 马上订购

代理商库存报告日期: 2020-06-05

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

260

Min.Order

25

地区

EUROPE 马上订购

代理商库存报告日期: 2020-06-05

L9409F

封装

MW 8L

包装类型

Tube

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 260 25 马上订购

代理商库存报告日期: 2020-06-05

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

260

Min.Order

25

地区

EUROPE 马上订购

代理商库存报告日期: 2020-06-05

Operating Temperature (°C)

(最小值)

-40

(最大值)

150

供货状态

批量生产

Budgetary Price (US$)* / Qty

3.9 / 1k

ECCN (US)

EAR99

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

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      DS8833
      Alternator voltage regulator with load response control
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      161.95 KB
      PDF
      DS8833

      Alternator voltage regulator with load response control

产品型号 供货状态 封装 等级规格 符合RoHS级别 材料声明**
L9409F
批量生产
MW 8L Automotive 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