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| 型号： | MXD1817UR22+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/11页 |
| 文件大小： | 0K |
| 描述： | IC MPU RESET CIRC 2.18V 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： | 推挽式，图腾柱 |
| 复位： | 高有效 |
| 复位超时： | 最小为 100 ms |
| 电压 - 阀值： | 2.18V |
| 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) |
19-2243; Rev 1; 12 /05
Low-Power μP Reset Circuits in 3-Pin
SC70/SOT23
General Description
The MXD1810–MXD1813/MXD1815–MXD1818 family of
microprocessor (μP) reset circuits monitor power sup-
plies in μP and digital systems. These devices provide
excellent circuit reliability and low cost by eliminating
external components and adjustments when used with
+2.5V/+3.0V/+3.3V (MXD1815 –MXD1818), and +5V
(MXD1810–MXD1813) systems.
These circuits assert a reset signal whenever the V CC
supply voltage declines below a preset threshold,
keeping reset asserted for at least 100ms after V CC
rises above the reset threshold. The MXD1813/
MXD1818 also keep reset asserted for at least 100ms
after the output is momentarily pulled to GND by an
external push-button switch.
The MXD1812/MXD1817 have an active-high push-pull
RESET output. The MXD1810/MXD1815 (push-pull) and
MXD1811/MXD1813/MXD1816/MD1818 (open-drain)
have an active-low RESET output. The open-drain
devices (MXD1811/MXD1813/MXD1816/MXD1818)
have an internal pullup resistor to V CC . The MXD1813/
MXD1818 feature a debounced manual reset feature
that asserts a reset if the RESET pin is pulled low for
Features
o Precision Monitoring of +2.5V, +3V, +3.3V, and
+5V Power-Supply Voltages
o Available in Four Reset Output Configurations
o Factory-Set Reset Threshold Voltages: 2.18V,
2.31V, 2.55V, 2.88V, 3.06V, 4.12V, 4.37V, 4.62V
o ±2.5% Reset Threshold Accuracy Over
Temperature
o Fixed Reset Timeout Period: 100ms (min)
o Guaranteed RESET/ RESET Valid to V CC = +1V
o Debounced Manual Reset
Detect (MXD1813/MXD1818)
o Power-Supply Transient Immunity
o No External Components
o Low Power Consumption (4μA)
o Pin Compatible with DS181_ Products (SOT23)
o 3-Pin SC70 and SOT23 Packages
Ordering Information
more than 1.5μs. When used to initiate manual reset,
RESET debounces signals from devices such as
mechanical switches. For devices with this feature, the
release of the external switch triggers the reset period.
PART ?
MXD1810 UR_ _-T
MXD1810XR_ _-T
TEMP RANGE
-40 o C to +105 o C
-40 o C to +105 o C
PIN-PACKAGE
3 SOT23-3
3 SC70-3
The MXD1810 –MXD1813/MXD1815 –MXD1818 are
? The
MXD1810–MXD1813/MXD1815–MXD1818 are available
guaranteed to output the correct logic state for V CC
down to +1V. These ICs provide a reset comparator
designed to ignore fast transients on V CC . Reset
thresholds are available between +2.18V and +4.62V.
These small, low-power (4μA) devices are ideal for use
in portable equipment. All are available in space-saving
3-pin SC70 and SOT23 packages, and are specified
from -40°C to +105°C.
Applications
Computers and Controllers
Intelligent Instruments
Set-Top Boxes
with factory-set V CC reset thresholds from +2.18V to +3.06V
(MXD1815–MXD1818) and +4.12V to +4.62V (MXD1810–
MXD1813). Choose the desired reset-threshold suffix from the
Reset Threshold Table and insert it in place of the “_ _” follow-
ing “R” in the part number. All devices are available in tape-
and-reel only in 2500 unit increments. Other threshold
voltages may be available. Contact factory for availability.
Devices are available in both leaded and lead-free packaging.
Specify lead-free by replacing “-T” with “+T” when ordering.
Ordering Information continued at end of data sheet.
Pin Configurations
TOP VIEW
Printers
Automotive Systems
V CC
1
RESET
(RESET)
1
Critical μP and μC Monitoring
Portable/Battery-Powered Equipment
RESET
(RESET)
2
MXD181_X
3
GND
V CC
2
MXD181_U
3
GND
SC70-3
SOT23-3
() ARE FOR THE MXD1812/MXD1817
________________________________________________________________ Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
1
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MXD1817UR23 | 制造商:Maxim Integrated Products 功能描述:- Rail/Tube |
| MXD1817UR23+ | 制造商:Maxim Integrated Products 功能描述:PROCESSOR SUPERVISOR 2.31V 9UA 3PIN SOT-23 - Rail/Tube |
| MXD1817UR23+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 |
| MXD1817UR23-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 |
| MXD1817UR26 | 制造商:Maxim Integrated Products 功能描述:- Rail/Tube |
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