音影先锋亚洲天堂网|电影世界尽头的爱完整版播放|国产 熟女 91|高清无码免费观看欧美日韩|韩国一区二区三区黄色录像|美女亚洲加勒比在线|亚洲综合网 开心五月|7x成人在线入口|成人网站免费日韩毛片区|国产黄片?一级?二级?三级

L9911A Datasheet

  • L9911A

  • CAR ALTERNATOR MULTIFUNCTION SMART VOLTAGE REGULATOR

  • 188.60KB

  • 15頁(yè)

  • STMICROELECTRONICS   STMICROELECTRONICS

掃碼查看芯片數(shù)據(jù)手冊(cè)

上傳產(chǎn)品規(guī)格書(shū)

PDF預(yù)覽

L9911
CAR ALTERNATOR MULTIFUNCTION SMART VOLTAGE
REGULATOR
PRELIMINARY DATA
1
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
Features
FULLY MONOLITHIC DESIGN
HIGH SIDE FIELD DRIVER
THERMAL PROTECTION
FIELD SHORT CIRCUIT PROTECTION
PROTECTED DIAGNOSTIC LAMP DRIVER
PROTECTED HIGH SIDE RELAY DRIVER
COMPLEX DIAGNOSTICS
LOAD RESPONSE CONTROL
DFM OUTPUT (FIELD MONITOR)
Figure 1. Package
Multiwatt8
Table 1. Order Codes
Part Number
L9911A
L9911B
Package
Multiwatt8
Multiwatt8
Features
See Table.9
See Table.9
2
Description
The L9911 is a monolithic multifunction alternator
voltage regulator intended for use in automotive
application. It includes the control section, the field
power stage, fault diagnostic circuit which drives a
warning lamp, and the protection against short cir-
cuits.
3
Circuit Operation
ance so high to cause a superimposed ripple on
the alternator voltage higher than 5-6V. Conse-
quently it doesn't need, in the standard applica-
tion, any external component. Anyway an external
capacitor (2.2碌F) must be inserted between A+
and ground when using the device with very long
cables.
3.2 PROTECTION
It is present a protection against short circuits of
the lamp and the relay power drivers (L) and of the
field power driver (F+), a thermal drivers shutdown
protection and an overvoltage protection of L pow-
er drivers.
3.3 DIAGNOSIS
The circuit detects fault conditions related to the
phase and F+ status and receives informations
from one of the three alternator phases. In order to
prevent spurious indications, fault warnings are
not displayed immediately but are dalayed by a
fixed time.
3.4 LOAD RESPONSE CONTROL
The internal circuit regulates the soft start charac-
teristics (activated always at engine start) and the
soft attack characteristics.
Rev. 3
1/15
The alternator's voltage regulator performs the fol-
lowing main functions:
鈥?1) voltage regulation
鈥?2) protection
鈥?3) control fault diagnosis
鈥?4) load response control
3.1 VOLTAGE REGULATION
The alternator voltage is compared with a refer-
ence voltage in an amplifier, whose output deter-
mines the switching frequency of output power
MOS whose current excites the coil of the alterna-
tor; as the regulator is in fixed-frequency topology,
the field switching frequency does not depend on
the alternator characteristics. The regulators have
an integrated filter in the voltage sensing path
guaranteeing the correct behaviour of the devices
also when the rectifier diodes feature very high
switching spikes. The internal filtering allows the
usage of the device also with very long cables con-
necting the alternator to the battery with an imped-
November 2005
This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to change without notice.

L9911A相關(guān)型號(hào)PDF文件下載

  • 型號(hào)
    版本
    描述
    廠商
    下載
  • 英文版
    CAR ALTERNATOR MULTIFUNCTION SMART VOLTAGE REGULATOR
    STMICROELECTRONICS
  • 英文版
    CAR ALTERNATOR MULTIFUNCTION SMART VOLTAGE REGULATOR
    STMICROELECTRON...
  • 英文版
    CAR ALTERNATOR MULTIFUNCTION SMART VOLTAGE REGULATOR
    STMICROELECTRONICS
  • 英文版
    CAR ALTERNATOR MULTIFUNCTION SMART VOLTAGE REGULATOR
    STMICROELECTRON...
  • 英文版
    CAR ALTERNATOR MULTIFUNCTION SMART VOLTAGE REGULATOR
    STMICROELECTRONICS
  • 英文版
    CAR ALTERNATOR MULTIFUNCTION SMART VOLTAGE REGULATOR
    STMICROELECTRON...
  • 英文版
    Multifunction Smart Regulator with Lamp/Relay Diagnostic Dri...
    STMICROELECTRONICS
  • 英文版
    暫無(wú)描述
    STMICROELECTRONICS
  • 英文版
    Multifunction Smart Regulator with Lamp/Relay Diagnostic Dri...
    STMICROELECTRONICS
  • 英文版
    - Power Supply, Automotive Applications Voltage Regulator IC...
  • 英文版
    - Power Supply, Automotive Applications Voltage Regulator IC...
  • 英文版
    - Power Supply, Automotive Applications Voltage Regulator IC...

您可能感興趣的PDF文件資料

掃碼下載APP，
一鍵連接廣大的電子世界。

在線人工客服

買(mǎi)家服務(wù)：
賣(mài)家服務(wù)：
技術(shù)客服：

0571-85317607

網(wǎng)站技術(shù)支持

13606545031

客服在線時(shí)間周一至周五
9:00-17:30

關(guān)注官方微信號(hào)，
第一時(shí)間獲取資訊。

建議反饋

聯(lián)系人：

聯(lián)系方式：

按住滑塊，拖拽到最右邊
>>
感謝您向阿庫(kù)提出的寶貴意見(jiàn)，您的參與是維庫(kù)提升服務(wù)的動(dòng)力！意見(jiàn)一經(jīng)采納，將有感恩紅包奉上哦！