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| 型号： | MXD1818UR31+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 6/11页 |
| 文件大小： | 0K |
| 描述： | IC MPU RESET CIRC 3.06V SOT23-3 |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 类型： | 简单复位/加电复位 |
| 监视电压数目： | 1 |
| 输出： | 开路漏极或开路集电极 |
| 复位： | 低有效 |
| 复位超时： | 最小为 100 ms |
| 电压 - 阀值： | 3.06V |
| 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 |
| 包装： | 带卷 (TR) |
Low-Power μP Reset Circuits in 3-Pin
SC70/SOT23
Functional Diagram
MXD1810
MXD1812
MXD1815
MXD1817
V CC
MXD1811
MXD1816
V CC
RESET
RESET
GENERATOR
RESET
OR
RESET
RESET
GENERATOR
V REF
V REF
Figure 1. Functional Diagram, Push-Pull Output
Figure 2. Functional Diagram, Open-Drain Active-Low Output
The Typical Operating Characteristics show the
Maximum Transient Duration vs. Reset Threshold
V CC
MXD1813
MXD1818
MR
MONITOR
Overdrive for which reset pulses are not generated. The
graph shows the maximum pulse width that a negative-
going V CC transient may typically have without issuing a
reset signal. As the amplitude of the transient increases,
the maximum allowable pulse width decreases.
Ensuring a Valid Reset Output Down to
V CC = 0
When V CC falls below the minimum operating voltage,
RESET
GENERATOR
RESET
push-pull structured reset sinking (or sourcing) capabil-
ities decrease dramatically. High-impedance CMOS-
logic inputs connected to the RESET/ RESET pin can
drift to indeterminate voltages. This does not present a
V REF
Figure 3. Functional Diagram, Open-Drain Active-Low Output
with Manual Reset Detection
problem in most cases, since most μPs and circuitry do
not operate at V CC below +1V. For MXD1810/
MXD1815 applications where RESET must be valid
down to V CC = 0, adding a pulldown resistor between
RESET and GND removes stray leakage currents, hold-
ing RESET low (Figure 8). The pulldown resistor value is
not critical; 100k Ω is large enough not to load RESET
and small enough to pull RESET low. For MXD1812/
6
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MXD1818XR | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Low-Power UP Reset Circuits in 3-Pin |
| MXD1818XR22 | 制造商:Maxim Integrated Products 功能描述:- Cut Tape Product |
| MXD1818XR22+ | 制造商:Maxim Integrated Products 功能描述:- Rail/Tube |
| MXD1818XR22+T | 功能描述:监控电路 3-Pin uPower Reset Circuit 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 |
| MXD1818XR22-T | 功能描述:监控电路 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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