L9407F 데이터 시트보기 (PDF) - STMicroelectronics
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L9407F Datasheet PDF : 11 Pages
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L9407F
ELECTRICAL CHARACTERISTCS (continued)
(Tcase = -40ºC ÷ 150ºC; unless otherwise specified)
Symbol
Parameter
Test Condition
Min. Typ. Max Unit
EN
Soft start enable frequency
Tcase = 25ºC
range
Tcase = -40 to150ºC
144 160
176
Hz
136 160
184
Hz
f_RESS_SS Reset frequency range to
enable soft start
40
50
60
Hz
DISAB Soft start enable frequency
range
Tcase = 25ºC
Tcase = -40 to150ºC
367 408
449
Hz
347 408
469
Hz
f-dfm Output open drain switching preexc. mode; Isink=14mA
30
freq.
400
Hz
VL-DF- Output low voltage saturation I-sink=14mA
MON
1.5
V
I-DF-MON Short circuit current protection V-DF-MON=24V field fully on
15
120
mA
Ilk-DF- Output leakage current
MON
V-DF-MON=24V field off
0.1
mA
t-TM Output voltage rise time
R=2.7K Ohm; C=1nF;
0.05
Valim=13.5V (Fig. 6)
50
us
t-TD Output voltage fall time
R=2.7K Ohm; C=1nF;
0.05
Valim=13.5V (Fig. 6)
50
us
t-D
Diagnostic Alarm Delay Time
0.15
0.5
s
Figure 1. DF Monitor Electrical configuration
L9407F
Alternator
Field
A+
DF
Control
Circuit
Field driver
Regulator assy
Valim
R
DF_MON
to the ECU
C
DFMon driver
Test circuit
5/11
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