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參數(shù)資料
| 型號： | ASM690 |
| 廠商： | Alliance Semiconductor Corporation |
| 英文描述： | UP Power Supply Supervisor With Battery Backup Switch |
| 中文描述： | 電源的監(jiān)控帶備用電池開關 |
| 文件頁數(shù)： | 7/13頁 |
| 文件大小： | 323K |
| 代理商： | ASM690 |
7 of 13
Notice: The information in this document is subject to change without notice
ASM690A / 692A
ASM802L / 802M
ASM805L
μP Power Supply Supervisor With Battery Backup Switch
rev 1.0
October 2003
Monitoring Capabilities Of The Power-fail Input:
Although designed for power supply failure monitoring, the
PFI pin can be used for monitoring any voltage condition that
can be scaled by means of a resistive divider. An example is
the negative power supply monitor configured in Figure 8. In
this case a good negative supply will hold the PFI pin below
1.25V and the PFO pin will be at logic “0”. As the negative
voltage declines, the voltage at the PFI pin will rise until it
exceeds 1.25V and the PFO pin will go to logic “1”.
V
CC
PFI
GND
R
1
R
2
V-
V- = V
TRIP
PFO
+5V
ASM690A
ASM692A
ASM802L
ASM802M
ASM805L
+5V
PFO
0V
V
TRIP
V-
V
R
2
0V
5
1.25
R
1
–
1.25
–
=
Figure 8: Using PFI To Monitor Negative Supply Voltage
相關PDF資料 |
PDF描述 |
|---|---|
| ASM690A | UP Power Supply Supervisor With Battery Backup Switch |
| ASM690ACPA | UP Power Supply Supervisor With Battery Backup Switch |
| ASM690ACSA | UP Power Supply Supervisor With Battery Backup Switch |
| ASM690AEPA | UP Power Supply Supervisor With Battery Backup Switch |
| ASM690AESA | UP Power Supply Supervisor With Battery Backup Switch |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| ASM690A | 制造商:ALSC 制造商全稱:Alliance Semiconductor Corporation 功能描述:UP Power Supply Supervisor With Battery Backup Switch |
| ASM690AC/D | 制造商:ALSC 制造商全稱:Alliance Semiconductor Corporation 功能描述:UP Power Supply Supervisor With Battery Backup Switch |
| ASM690ACPA | 制造商:ALSC 制造商全稱:Alliance Semiconductor Corporation 功能描述:UP Power Supply Supervisor With Battery Backup Switch |
| ASM690ACPAF | 制造商:PULSECORE 制造商全稱:PulseCore Semiconductor 功能描述:μP Power Supply Supervisor With Battery Backup Switch |
| ASM690ACSA | 制造商:ALSC 制造商全稱:Alliance Semiconductor Corporation 功能描述:UP Power Supply Supervisor With Battery Backup Switch |
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