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參數資料
| 型號： | CAT825STDI-G |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | 電源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO5 |
| 封裝： | ROHS COMPLIANT AND HALOGEN FREE, MO-193, TSOT-23, 5 PIN |
| 文件頁數： | 2/14頁 |
| 文件大?。?/td> | 153K |
| 代理商： | CAT825STDI-G |
CAT823, CAT824, CAT825
Doc. No. MD-3027 Rev. C
10
2008 SCILLC. All rights reserved.
Characteristics subject to change without notice
APPLICATION NOTES
P’s with Bidirectional Reset Pins
The RESET
output can be pulled low by processors
like the 68HC11 allowing for a system reset issued by
the processor. The maximum pullup current that can
be sourced by the CAT82_L/M is 1.5mA (and by the
CAT82_T/R/S/Z/Y is 800A) allowing the processor to
pull the output low even when the CAT82x is pulling it
high.
Power Transients
Generally short duration negative-going transients of
less than 2s on the power supply at VRST minimum
will not cause a reset condition. However the lower
the voltage of the transient the shorter the required
time to cause a reset output.
These issues can
usually be remedied by the proper location of bypass
capacitance on the circuit board.
OUTPUT VALID CONDITIONS
The RESET
output uses a push-pull output which can
maintain a valid output down to a VCC of 1.0 volts. To
sink current below 0.8V a resistor can be connected
from RESET
to Ground (see Figure 8.)
This
arrangement will maintain a valid value on the RESET
output during both power up and down but will draw
current when the RESET
output is in the high state. A
resistor value of about 100k
should be adequate in
most situations to maintain a low condition valid
output down to VCC equal to 0V.
Figure 8. RESET
Valid to 0 Volts VCC
100k
CAT823
VCC
GND
WDI
MR
C
RESET
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相關代理商/技術參數 |
參數描述 |
|---|---|
| CAT825STDI-GT3 | 功能描述:監(jiān)控電路 act low act hi/MR RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數: 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復位:Resettable 監(jiān)視器:No Watchdog 電池備用開關:No Backup 上電復位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| CAT825TSDI-G | 制造商:CATALYST 制造商全稱:Catalyst Semiconductor 功能描述:System Supervisory Voltage Reset with Watchdog and Manual Reset |
| CAT825TSDI-GT3 | 功能描述:監(jiān)控電路 SUP ACT LOW ACT HI MR RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數: 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復位:Resettable 監(jiān)視器:No Watchdog 電池備用開關:No Backup 上電復位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| CAT825TTDI-G | 制造商:CATALYST 制造商全稱:Catalyst Semiconductor 功能描述:System Supervisory Voltage Reset with Watchdog and Manual Reset |
| CAT825TTDI-GT3 | 功能描述:監(jiān)控電路 act low act hi/MR RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數: 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復位:Resettable 監(jiān)視器:No Watchdog 電池備用開關:No Backup 上電復位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
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