L9466 Electrical specifications
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Table 6. Diagnostic (T
case
= -35°C to +150°C unless otherwise specified)
Symbol Parameter Conditions Min. Typ. Max. Units
V
OV
Over-voltage V
SP
+ 1
V
SP
+
1.3
V
SP
+ 2 V
V
UV
Under-voltage F
P
> F
P-LRC
0.95 1.8 V
V
L-SAT
Lamp ON saturation voltage I
L
= 0.5A (sinked by ASVR) >V
L-ACT
1.33 1.45 V
V
L-SAT-BO
Lamp ON voltage
(1)
I
L
< 0.5A, VGO = Open; T
case
=
-35C to 85C
3.8 5 V
V
L-RLY
Lamp OFF (relay drive)
saturation voltage (vs. B+)
I
L
= 750mA (Sourced by ASVR)
(2)
T
case
< 125°C
1.85 V
T
DELAY
Fault indication delay time Delay before Lamp ON 0.9 1.1 1.3 s
1. This condition can happen when the connection between the battery and VGO or the output terminal of the generator is
broken. The 1.1 second delay is not required, and current is sinked by ASVR.
2. When no fault is detected the Lamp terminal is pulled up by ASVR.
Table 7. Fault indication table
Conditions T
Delay
Initial KEY-ON Bulb and Wiring Check (Lamp ON for 1 sec. 15% after initial KEY-ON) No
V
GO
> V
OV
Ye s
V
P
< V
P-F
AND V
GO
< V
SP
Ye s
F
P
< F
P-TR
@ V
P-TR
Ye s
No Connection Between Battery and V
GO
No
At Start: Lamp ON until F
P
>F
P-IR
AND V
P
>V
P-F
. i.e. until V
P
reaches 8V. No
Table 8.
Regulation features
Symbol Parameter Conditions Min. Typ. Max. Unit
V
L-PD
L terminal regulator activate
threshold
VGO=12.6V 0.8 1 1.15 V
I
L-PD
L terminal pull down current
V
L
= V
L-ACT
VGO=12.6V
0.09 0.78 mA
V
P-IR
Initiate regulation phase voltage
threshold
Regulator Activated 1.1 1.3 1.5 V
I
P
Phase terminal current sink
V
P
> 1.5V and < 12.6V
VGO = 12.6V
0.25 3.5 mA
F
P-IR
Initiate regulation phase
frequency
123 145 167 Hz
F
P-TR
Terminate regulation phase
frequency
59 72 86 Hz
IRD Initiate regulation delay
Regulator activated, V
P-IR
and
F
P-IR
Conditions Met First Time.
1.722.3s
