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参数资料
| 型号： | L9468N |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 模拟信号调理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, SFM8 |
| 封装： | MULTIWATT-8 |
| 文件页数： | 4/8页 |
| 文件大小： | 175K |
| 代理商： | L9468N |
L9468
4/8
Figure 5. Setpoint Voltage vs. Tcase Temperature
Table 6. Diagnostic (Tcase -35°C to +150°C unless otherwise specified)
Notes:
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.
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
VFSO
Failsafe Output Voltage
Voltage measured at VGO
20
20.4821V
VFSL
Switch sensing from S to VGO
"S" Voltage falling into Fail Soft 4
44.2
V
VFSH
Switch sensing from VGO to S
"S" Voltage rising out of Fail Soft
7.6
8
V
IS
Sink current @ "S" pin
VS = 14 V
1
1.75
2.5
mA
VUV
Undervoltage
grpm > 3100 ± 15%
10.95
11.35
11.6
V
VOV
Overvoltage
VS+1
VS+1.25
VS+1.55
V
VLSAT
Lamp saturation voltage
IL = 0.5A
1.33
1.4
V
VLSAT
Lamp on Voltage 5
IL < 0.5A,VGO=open, Tcase =
25°C
3.8
5
V
TDELAY
Fault Indication Delay Time
0.935
1.1
1.265
s
0
20
40
60
80
100
120
Tcase(C)
-40
13.0
13.2
13.4
13.6
13.8
14.0
14.2
14.4
14.6
14.8
15.0
15.2
15.4
15.6
15.8
VS
(V)
-20
D02AT506
15.9
15.45
15.05
14.35
14.1
13.85
14
13.65
13.35
14.8
14.55
15
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