參數(shù)資料
型號(hào): L9911P
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: ROHS COMPLIANT, MULTIWATT-8
文件頁(yè)數(shù): 8/19頁(yè)
文件大小: 276K
代理商: L9911P
Electrical specification
L9911
16/19
Doc ID 10990 Rev 6
Note:
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 13.
DF monitor electrical configuration
Figure 14.
Short circuit drivers' protection
Field driver, DFmon driver and Relay driver are protected in switching mode (not linear), with
a retry time less than 25 ms.
Lamp driver is protected in linear mode, with a retry time of 1 s.
Table 10.
Fault detection
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
L9911
Control
Circuit
Field driver
DFMon driver
to the ECU
R
Valim
Test circuit
Field
Alternator
Regulator assy
B+
F+
DFM
Current short circuit (Field driver, Relay driver, DFMon driver)
T< 25ms
Current short circuit (Lamp driver)
Filtering time
Retry time
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