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參數(shù)資料
| 型號(hào)： | L9484 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | CAR ALTERNATOR VOLTAGE REGULATOR |
| 中文描述： | 汽車發(fā)電機(jī)電壓調(diào)節(jié)器 |
| 文件頁數(shù)： | 5/8頁 |
| 文件大小： | 100K |
| 代理商： | L9484 |
5/8
L9484
DIAGNOSTIC
(T
case
= -35
°
C to +150
°
C unless otherwise specified)
2. 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.
3. When no fault is detected the Lamp terminal is pulled up by ASVR.
FAULT INDICATION TABLE
Symbol
Parameter
Conditions
Min.
Typ.
Max.
Units
V
OV
Over-Voltage
V
SP
+ 1
V
SP
+
1.3
V
SP
+ 2
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
2
I
L
< 0.5A, VGO = Open; T
case
= -
35
°
C to 85
°
C
3.8
5
V
V
L-RLY
Lamp OFF (Relay Drive)
Saturation Voltage (vs. B+)
I
L
= 750mA (Sourced by ASVR)
3
Tcase < 125C
1.85
V
T
DELAY
Fault Indication Delay Time
Delay before Lamp ON
0.9
1.1
1.3
s
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
Yes
V
P
< V
P-F
AND V
GO
< V
SP
Yes
F
P
< F
P-TR
@ V
P-TR
Yes
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
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
V
P-TR
Terminate Regulation Phase
Voltage Threshold
Regulator Activated
1.1
1.3
1.5
V
V
P-F
Phase Input Voltage Low FAULT
Threshold
7.0
8
9.0
V
I
P
Phase Terminal Current Sink
V
P
> 1.5V and < 12.6V
VGO = 12.6V
0.3
3.5
mA
F
P-IR
Initiate Regulation Phase
Frequency
123
145
167
Hz
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