參數(shù)資料
型號(hào): L9911B
廠商: STMICROELECTRONICS
元件分類: 運(yùn)動(dòng)控制電子
英文描述: BRUSH DC MOTOR CONTROLLER, SFM8
封裝: LEAD FREE, MULTIWATT-8
文件頁(yè)數(shù): 3/15頁(yè)
文件大?。?/td> 241K
代理商: L9911B
11/15
L9911
Figure 13. Soft Start/attack Characteristics
Table 10. Fault Detection
The diagnostic result is disabled during the Soft-start delay time t_ST 0...3 and the soft-start / soft attack timing t_SL 0...3
Figure 14. DFMonitor Electrical configuration
Root Cause
Signal
Effect
Test detect
Alternator belt breaking
P
Alternator disexcitation
VP<VPHH1 & VB+<Vreg
Brushes open
P
Alternator disexcitation
VP<VPHH1 & VB+<Vreg
Field Driver Open
P
Alternator disexcitation
VP<VPHH1 & VB+<Vreg
Field interruption
P
Alternator disexcitation
VP<VPHH1 & VB+<Vreg
Field short circuit to the battery
F+
Overvoltage
VF+>VS1 & VB+ > Vov-d
Field short circuit to the ground
P
Alternator disexcitation
VP<VPHH1 & VB+<Vreg
Battery discharge
B+
Undervoltage
VB+<Vuv
Engine
Ign. Switch
W/Lamp
Ifield
F+/DFM
off
on
off
on
off
on
t_SL
t_ST
Field Pre-
excitation
Field
Regulation
Load ON
L9911
Control
Circuit
Field driver
DFMon driver
to the ECU
R
Valim
Test circuit
Field
Alternator
Regulator assy
B+
F+
DFM
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