l9466 STMicroelectronics, l9466 Datasheet - Page 4

• Manufacturer Part Number: l9466
• Description: Car Alternator Voltage Regulator
• Manufacturer: STMicroelectronics

L9466
Table 6. DIAGNOSTIC (Tcase = -35°C to +150°C unless otherwise specified)
Table 7. FAULT INDICATION TABLE
Table 8. REGULATION FEATURES
4/8
V
Initial KEY-ON Bulb and Wiring Check (Lamp ON for 1 sec ± 15% after initial KEY-ON)
V
V
F
No Connection Between Battery and V
At Start: Lamp ON until F
Symbol
Symbol
T
GO
P
V
L-SAT-BO
V
P
V
F
V
F
I
DELAY
V
V
L-PD
L-SAT
L-RLY
P-TR
< V
< F
L-PD
P-IR
P-IR
I
OV
UV
P
> V
2. This condition can happen when the connection between the battery and VGO or the output terminal of the generator is broken.
3. When no fault is detected the Lamp terminal is pulled up by ASVR.
P-TR
P-F
The 1.1 second delay is not required, and current is sinked by ASVR.
OV
AND V
L Terminal Regulator Activate
Threshold
L Terminal Pull Down Current
Initiate Regulation Phase Voltage
Threshold
Phase Terminal Current Sink
Initiate Regulation Phase
Frequency
Terminate Regulation Phase
Frequency
Over-Voltage
Under-Voltage
Lamp ON Saturation Voltage
Lamp ON Voltage
Lamp OFF (Relay Drive)
Saturation Voltage (vs. B+)
Fault Indication Delay Time
@ V
P-TR
GO
< V
Parameter
Parameter
SP
P
>F
2
P-IR
AND V
GO
P
>V
Conditions
P-F
F
S_term and V
I
I
35°C to 85°C
I
3
Delay before Lamp ON
L
L
L
VGO=12.6V
V
VGO=12.6V
Regulator Activated
V
VGO = 12.6V
P
= 0.5A (sinked by ASVR)
< 0.5A, VGO = Open; T
= 750mA (Sourced by ASVR)
. i.e. until V
Tcase < 125C
L
P
> F
= V
> 1.5V and < 12.6V
P-LRC
L-ACT
Conditions
, 10kohm between
Conditions
GO
P
reaches 8V.
case
= -
>V
V
Min.
0.95
SP
0.9
L-ACT
Min.
0.09
0.25
123
+ 1
0.8
1.1
59
V
Typ.
1.33
1.3
3.8
1.1
SP
Typ.
145
1.3
72
1
+
V
Max.
SP
1.45
1.85
1.8
1.3
Max.
1.15
0.78
167
5
1.5
3.5
86
+ 2
T
Delay
Yes
Yes
Yes
No
No
No
Units
?
Unit
mA
mA
Hz
Hz
V
V
V
V
V
s
V
V