l9468 STMicroelectronics, l9468 Datasheet - Page 4

• Manufacturer Part Number: l9468
• Description: All Silicon Voltage Regulator
• Manufacturer: STMicroelectronics

L9468
Figure 5. Setpoint Voltage vs. T
Table 6. Diagnostic (T
Notes:
4/8
Symbol
T
V
V
V
V
V
DELAY
V
V
LSAT
LSAT
FSO
FSH
I
FSL
OV
UV
S
4. When Fail Soft operation is detected, regulation sensing will switch from the "S" terminal to the VGO terminal.
5. This condition can happen when the connection between the battery and VGO or the output terminal of the generator is broken.
In this case the delay of 1.1 seconds is not required.
Failsafe Output Voltage
Switch sensing from S to V
Switch sensing from V
Sink current @ "S" pin
Undervoltage
Overvoltage
Lamp saturation voltage
Lamp on Voltage
Fault Indication Delay Time
15.8
15.6
15.4
15.2
15.0
14.8
14.6
14.4
14.2
14.0
13.8
13.6
13.4
13.2
13.0
(V)
V
S
-40
Parameter
15.45
case
15
-20
5
-35°C to +150°C unless otherwise specified)
15.9
GO
case
to S
0
GO
Temperature
14.55
Voltage measured at V
"S" Voltage falling into Fail Soft
"S" Voltage rising out of Fail Soft
V
grpm > 3100 ± 15%
I
I
25°C
20
L
L
S
= 0.5A
< 0.5A,VGO=open, T
15.05
= 14 V
40
Test Condition
60
13.85
GO
14.1
14.35
case
80
=
4
100
10.95
0.935
V
Min.
20
S
4
1
+1
120
V
20.48
11.35
S
Typ.
1.75
1.33
D02AT506
Tcase(˚C)
4.2
7.6
+1.25
3.8
1.1
13.35
13.65
14
V
S
1.265
Max.
11.6
+1.55
2.5
1.4
21
8
5
Unit
mA
V
V
V
V
V
V
V
s