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参数资料
| 型号： | CAT859STBI-GT3 |
| 厂商： | ON Semiconductor |
| 文件页数： | 5/9页 |
| 文件大小： | 0K |
| 描述： | IC SUPERVISOR MPU PP 2.93V SOT23 |
| 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： | 2.93V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | TO-236-3，SC-59，SOT-23-3 |
| 供应商设备封装： | SOT-23-3 |
| 包装： | 带卷 (TR) |
| 其它名称： | 859STBI-GT3 |
CAT853, CAT859, CAT863, CAT869
DETAILED DESCRIPTION
Reset Timing
The reset signal is asserted low for the CAT853, CAT863, CAT859, and CAT869 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.
Power
Supply
Voltage
RESET
5V
0V
5V
0V
Threshold
Voltage
Reset Timeout Period
140 ms
minimum
Figure 6. Reset Timing Diagram
V CC Transient Response
The CAT853, CAT863, CAT859, and CAT869 protect m Ps
against brownout failure. Short duration transients of 4 m s or
less and 100 mV amplitude typically do not cause a false
RESET.
Figure 7 shows the maximum pulse duration of
negative ? 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 ).
30
Valid Reset with V CC under 1.0 V
To ensure that the CAT859 and CAT869 RESET pin is in
a known state when V CC is under 1.0 V, a > 10 k W
pull ? down resistor between RESET pin and GND is
recommended.
Power
Supply
V CC
CAT8x9
25
T AMB = 25 ° C
RESET
20
15
“C” THRESHOLD
GND
10 k W
10
5
“M” THRESHOLD
Figure 8. RESET Valid with V CC Under 1.0 V
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
5
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相关代理商/技术参数 |
参数描述 |
|---|---|
| CAT859TTBI-GT3 | 功能描述:监控电路 Supervisor,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 |
| CAT863MTBI-GT3 | 功能描述:监控电路 4.38V Open Drain Active 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 |
| CAT863STBGI-T3 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Catalyst Semiconductor 功能描述: |
| CAT863STBI-GT3 | 功能描述:监控电路 Supervisor,Open drain,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 |
| CAT863TTBI-GT3 | 功能描述:监控电路 Supervisor,Open drain,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 |
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