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参数资料
| 型号： | CAT809ZSDI-T3 |
| 厂商： | ON Semiconductor |
| 文件页数： | 6/11页 |
| 文件大小： | 0K |
| 描述： | IC VOLTAGE SUPERVISOR SC-70-3 |
| 标准包装： | 3,000 |
| 类型： | 简单复位/加电复位 |
| 监视电压数目： | 1 |
| 输出： | 推挽式，图腾柱 |
| 复位： | 低有效 |
| 复位超时： | 最小为 140 ms |
| 电压 - 阀值： | 2.32V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | SC-70，SOT-323 |
| 供应商设备封装： | SC-70-3 |
| 包装： | 带卷 (TR) |
CAT803, CAT809, CAT810
Detailed Descriptions
Reset Timing
The reset signal is asserted LOW for the CAT803/CAT809 and HIGH for the CAT810 when the power supply voltage falls below
the threshold trip voltage and remains asserted for at least 140 ms after the power supply voltage has risen above the threshold.
5V
V TH
V CC
0V
CAT803, CAT809
CAT810
5V
RESET
0V
5V
RESET
0V
T D
Figure 6. Reset Timing Diagram
T R
(140 ms
minimum)
Reset Timeout Period
V CC Transient Response
The CAT803/CAT809/CAT810 protect m Ps against
brownout failure. Short duration transients of 4 m sec or less
and 100 mV amplitude typically do not cause a false RESET.
Figure 7 shows the maximum pulse duration of negative ?
30
25
20
T AMB = 25 ° C
going V CC transients that do not cause a reset condition.
As the amplitude of the transient goes further below the
threshold (increasing V TH ? V CC ), the maximum pulse
duration decreases. In this test, the V CC starts from an initial
voltage of 0.5 V above the threshold and drops below it by
the amplitude of the overdrive voltage (V TH ? V CC ).
15
10
5
CAT809M
CAT809Z
0
1
10
100
1000
RESET OVERDRIVE V TH ? V CC (mV)
Figure 7. Maximum Transient Duration without
Causing a Reset Pulse vs. Reset Comparator
Overdrive
http://onsemi.com
6
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相关代理商/技术参数 |
参数描述 |
|---|---|
| CAT809ZTBI-GT10 | 制造商:CATALYST 制造商全称:Catalyst Semiconductor 功能描述:3-Pin Microprocessor Power Supply Supervisors |
| CAT809ZTBIGT3 | 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:3-Pin Microprocessor Power Supply Supervisors |
| CAT809ZTBI-GT3 | 功能描述:监控电路 Push-pull Act low RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
| CAT809ZTBIT10 | 制造商:CATALYST 制造商全称:Catalyst Semiconductor 功能描述:3-Pin Microprocessor Power Supply Supervisors |
| CAT809ZTBI-T10 | 功能描述:监控电路 2.32V Push-Pull Low RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
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