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| 型号： | APL6536KI-TUL |
| 厂商： | Anpec Electronics Corporation |
| 英文描述： | Four-Channel Supervisory IC |
| 中文描述： | 四通道监控IC |
| 文件页数： | 9/13页 |
| 文件大小： | 191K |
| 代理商： | APL6536KI-TUL |
Copyright
ANPEC Electronics Corp. Rev.
A.4 - Mar., 2005
APL6536
www.anpec.com.tw
9
Application I nformation
PGOOD
The APL6536 is a four channel supervisory IC designed
to monitor multiple voltages greater than 0.7V. This
IC is suitable for both microprocessors or industrial
system applications. Once biased to 2.6V and en-
abled the IC continuously monitors from one to four
voltages independently through external resistor di-
viders comparing each VMON pin voltage to an inter-
nal 0.633V reference. The PGOOD output is an open-
drain to allow ORing of the signals and interfacing to a
wide range of logic levels. If less than four voltages
are being monitored, connect the unused VMON pins
to V
CC
. The PGOOD pin has an internal 20k
pull-up
to V
CC
making an external pull-up resistor
unnecessary.
Falling Edge Glitc h Filter
E nable
Once any VMON input falls below 0.633V the PGOOD
output is pulled low, the VMON inputs are designed
to reject fast transients (30us).
The APL6536 has an active high enable function. Force
EN high (>=0.5V
CC
) enables the PGOOD, EN low(<=0.
5V) disables the PGOOD and enter the shutdown
mode and it also causes the PGOOD to discharge
through a 1M
resistance to ground. In shutdown
mode, the quiescent current can reduce below 60uA.
With an internal 10uA pull-up to V
CC
, it can be sig-
naled with common logic or pulled to ground with a
push button switch.
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