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參數(shù)資料
| 型號： | CAT810MTPI-T |
| 元件分類： | 電源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO3 |
| 封裝： | PLASTIC, SOT-23, 3-PIN |
| 文件頁數(shù)： | 10/12頁 |
| 文件大小： | 78K |
| 代理商： | CAT810MTPI-T |
7
Preliminary Information
CAT809, CAT810
Patent Pending
Doc. No. 3004, Rev. P
DETAILED DESCRIPTIONS
RESET TIMING
The reset signal is asserted LOW for the CAT809 and HIGH for the CAT810 when the power supply voltage falls below
the threshold trip voltage and remains asserted for at least 140ms after the power supply voltage has risen above the
threshold.
VCC TRANSIENT RESPONSE
The CAT809/810 protect
Ps against brownout failure. Short duration transients of 4sec or less and 100 mV
amplitude typically do not cause a false RESET.
Figure 2 shows the maximum pulse duration of negative-going VCC transients that do not cause a reset condition. As
the amplitude of the transient goes further below the threshold (increasing VTH - VCC), the maximum pulse duration
decreases. In this test, the VCC starts from an initial voltage of 0.5V above the threshold and drops below it by the
amplitude of the overdrive voltage (VTH - VCC).
5V
0V
5V
0V
5V
0V
CAT809
CAT810
Threshold
Voltage
140ms
minimum
Reset Timeout Period
Power
Supply
Voltage
RESET
FIGURE 1. RESET TIMING DIAGRAM
FIGURE 2. Maximum Transient Duration Without Causing a Reset Pulse vs. Reset Comparator Overdrive
30
25
20
15
10
5
0
TRANSIENT
DURA
TION
[
s)
RESET OVERDRIVE VTH - VCC [mV]
1
10
100
1000
TAMB = 25°C
CAT809M
CAT809Z
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CAT810REUR-T | 功能描述:監(jiān)控電路 2.63V Push-Pull High RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 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(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)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(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| CAT810REUR-T10 | 功能描述:監(jiān)控電路 2.63V Push-Pull High RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 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(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)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(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| CAT810REXR-T | 功能描述:監(jiān)控電路 2.63V Push-Pull High RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 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(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)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(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| CAT810REXR-T10 | 功能描述:監(jiān)控電路 2.63V Push-Pull High RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 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(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)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(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| CAT810RSDI-GT10 | 制造商:CATALYST 制造商全稱:Catalyst Semiconductor 功能描述:3-Pin Microprocessor Power Supply Supervisors |
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