参数资料
| 型号： | MAX809MTR |
| 厂商： | ON Semiconductor |
| 文件页数： | 8/13页 |
| 文件大小： | 0K |
| 描述： | IC MPU SUPERVISORY 4.38V SOT23 |
| 产品变化通告： | LTB Notification 03/Jan/2008 |
| 标准包装： | 1 |
| 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： | 4.38V |
| 工作温度： | -40°C ~ 105°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（TO-236） |
| 包装： | 剪切带 (CT) |
| 其它名称： | MAX809MTROSCT |
MAX809 Series, MAX810 Series
Detail Operation Description
The MAX809/810 series microprocessor reset
supervisory circuits are designed to monitor the power
supplies in digital systems and provide a reset signal to the
processor without any external components. Figure 2 shows
the timing diagram and a typical application below. Initially
consider that input voltage V CC is at a nominal level greater
than the voltage detector upper threshold ( VTH ). And the
RESET (RESET) output voltage (Pin 2) will be in the high
state for MAX809, or in the low state for MAX 810 devices.
If there is an input power interruption and V CC becomes
significantly deficient, it will fall below the lower detector
threshold (V TH ? ). This event causes the RESET output to be
in the low state for the MAX809, or in the high state for the
NCP810 devices. After completion of the power
interruption, V CC will rise to its nominal level and become
greater than the V TH . This sequence activates the internal
oscillator circuitry and digital counter to count. After the
count of the timeout period, the reset output will revert back
to the original state.
Input Voltage
Reset Output
MAX809, NCP803
Reset Output
V CC
V TH+
V TH–
V CC
V TH–
0V
V CC
V TH–
MAX810
0V
t RP
Figure 15. Timing Waveforms
http://onsemi.com
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相关PDF资料 |
PDF描述 |
|---|---|
| 1840-09K | COIL RF .82UH MOLDED UNSHIELDED |
| 1840-08K | COIL RF .68UH MOLDED UNSHIELDED |
| MIC5256-2.8YM5 TR | IC REG LDO 2.8V .15A SOT23-5 |
| 1840-07K | COIL RF .56UH MOLDED UNSHIELDED |
| 1840-06M | COIL RF .47UH MOLDED UNSHIELDED |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX809MTRG | 功能描述:监控电路 4.38V uP Reset 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 |
| MAX809MTRG-CUT TAPE | 制造商:ON 功能描述:MAX809 Series 4.38 V 140 ms 3-Pin Microprocessor Reset Monitor - SOT-23-3 |
| MAX809MW | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:3-pin microprocessor resets |
| MAX809R | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:3-pin microprocessor resets |
| MAX809RCPA | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Voltage Detector |
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