L9468(2013) 查看數據表（PDF） - STMicroelectronics
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L9468 Datasheet PDF : 8 Pages
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L9468
Table 5. Electrical Characteristcs
(Tcase = -35°C to 150°C unless otherwise specified)
Symbol
Parameter
Test Condition
Min. Typ. Max. Unit
VOS Operating Supply Voltage
Tcase = +25 to +150 °C
8
20 1
V
VOS Operating Supply Voltage
Tcase = - 40 to +25 °C
10
20
V
ISB Stand-by Current
VGO = 12.6V, Tcase -35 to +80 °C
400
A
ISB Stand-by Current
VGO = 12.6 V, 80°C <Tcase< +150°C
1
mA
VS Regulator Set-Point
@ 71°C ± 3°C
14.1
V
VNB Generator output, no battery No battery, IOUT =2A to 50% Max
Load
VS-2
VS+2
V
TC Thermal compensation
Voltage @ VS or VGO 2 in failsoft
V
VLR Load Regulation
6500 grpm, 10% to 95% load
300 mV
VSR Speed Regulation
15A load, 2,000 to 10,000 grpm
100 mV
VFON Output Saturation Voltage
IF = 6A, VGO = 14.7V, Tcase = 25°C
750 mV
VFON Output Saturation Voltage
IF = 5A, VGO = 13.5V, Tcase = 125°C
850 mV
IFLIM Field limit current
F terminal shorted to GND @ 25°C 8.3
A
F terminal shorted to GND @ 150°C 5
A
VF Field Discharge Rectifier
IF = 6A, Tcase = 25°C
1.85
V
IR Diode Reverse Current
VR = 20V
1
mA
fOSC Oscillation frequency
During LRC operation
340 400 460
Hz
MFDC Minimum Field Duty-Cycle
VUV < V(S or VGO) < VOV 3
6.25
%
RFM Impedance @ FM pin
Impedance between FM and F+
5
15
K
Notes:
1. 20 Volts is the maximum operating voltage because above this level the FAILSAFE feature shuts down the output stage.
2. Thermal slopes are shown in fig. 2
3. This value is present when the voltage sensed at the " S" or "VGO" terminal is between VUV and VOV. When the voltage sensed
at the "S" or "VGO" terminal is above VOV the Minimum Field Duty-Cycle will be 0 %.
Figure 4. Reverse B+ Test Circuit
POWER SUPPLY
+
6V
-
POWER SUPPLY
-
2.5V
+
INCANDESCENT
LOAD 14Ω
L
S
FM
I
VGO
ASVR
G
P
F
1.8Ω
FIELD
D02AT505
3/8
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