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参数资料
| 型号： | LX6433CSE-TR |
| 厂商： | MICROSEMI CORP-ANALOG MIXED SIGNAL GROUP |
| 元件分类： | 电源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO5 |
| 封装： | ROHS COMPLIANT, PLASTIC, SOT-23, 5 PIN |
| 文件页数： | 3/6页 |
| 文件大小： | 181K |
| 代理商： | LX6433CSE-TR |
PRODUCTION DATA SHEET
Microsemi
Analog Mixed Signal Group
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 3
Copyright
2003
Rev. 1.1, 2009-02-11
WWW
.Microse
m
i
.CO
M
LX6433
Precision Voltage Monitor
TM
SIMPLIFIED BLO C K DIAGR A M
VMON
GND
+
-
REF
CLOCK
1.6MHz
Divide by
24
VIN
OUTPUT
RESET
SET
Clock
Divide by
217
Negative Edge Detector
RESET Output
Pulse Qualifier
Figure 2 –
Simplified Block Diagram
5V
1V
0V
VIN
VMON
RESET
5V
3V
0V
1.5V
1.0V
0.5V
0.0V
“THRESHOLD”
T0
T1
T2
T3
T5 T6 T7
T8
T9 T10 T11 T12
T13
T15
T4
T14
T16
T0: RESET invalid logic state for VIN < 2V
T1- T1 Vmonitor exceeds Threshold, at T1, RESET pulse remains low for 100ms until T2.
T3 - T4: Transient on VIN is ignored, less than 10usec duration for Vmonitor < THRESHOLD. (Same applies for *)
T5: Vmonitor drops below Threshold, remains low for > 10usec which activates RESET Low.
T6: Vmonitor rises above Threshold but previous fault at T5 has not cycled through full timeout (T 6-T7 < 50mS), RESET remains low.
T7: Vmonitor fals below Threshold, RESET remains low.
T7-T8 duration > 10uS, RESET timer restarted for 100mS timeout
T8-T9: Duration exceeds 150ms, RESET timer cycle completed, output rises
T10-T11: Vmonitor falls below Threshold for > 10uS, RESET signal goes low.
T13-T14, T15-T16 :Vmonitor is above Threshold, no limits apply for peak voltage or duration.
* * *
**
* * *
100ms
(typ.)
100ms
(typ.)
100ms
(typ.)
Figure 3 –
Timing Diagram
BB
LL
OO
CC
KK
DD
IIAA
GG
RR
AA
MM
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