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参数资料
| 型号： | DS1233AZ-10/T&R |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/5页 |
| 文件大小： | 0K |
| 描述： | IC ECONORESET 3.3V 10% SOT-223 |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 系列： | EconoReset |
| 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 250 ms |
| 电压 - 阀值： | 2.88V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | TO-261-4，TO-261AA |
| 供应商设备封装： | SOT-223-3 |
| 包装： | 带卷 (TR) |
DS1233A
3.3V EconoReset
www.maxim-ic.com
FEATURES
PIN ASSIGNMENT
?
Automatically restarts microprocessor after
?
?
?
?
?
?
power failure
Monitors pushbutton for external override
Internal circuitry debounces pushbutton
switch
Maintains reset for 350ms after V CC returns to
an in-tolerance condition or pushbutton
released
Accurate 10% or 15% microprocessor 3.3V
power supply monitoring
Reduces need for discrete components
Precision temperature-compensated voltage
DALLAS
DS1233A
Econo
Reset
1 2 3
1 2 3
1
?
reference and voltage sensor
Low-cost TO-92 package or surface mount
BOTTOM VIEW
TO-92 PACKAGE
2 4 3
TOP VIEW
SOT-223 PACKAGE
SOT-223 package
?
?
Internal 5k ?? pull-up resistor
Operating temperature of -40 ? C to +85 ? C
PIN DESCRIPTION
PIN 1
PIN 2
PIN 3
PIN 4
GROUND
RESET
V CC
GROUND (SOT-223 ONLY)
DESCRIPTION
The DS1233A EconoReset monitors two vital conditions for a microprocessor: power supply and external
override. A precision temperature-compensated reference and comparator circuit are used to monitor the
status of the power supply (V CC ). When an out-of-tolerance condition is detected, an internal power fail
signal is generated which forces reset to the active state. When V CC returns to an in-tolerance condition,
the reset signal is kept in the active state for approximately 350ms to allow the power supply and
processor to stabilize. The second function of the DS1233A is pushbutton reset control. The DS1233A
debounces a pushbutton closure and will generate a 350ms reset pulse upon release.
OPERATION — POWER MONITOR
The DS1233A provides the functions of detecting out-of-tolerance power supply conditions and warning
a processor-based system of impending power failure. When V CC is detected as out-of-tolerance as
defined by the tolerance of the part selected, the RST signal is asserted. On power-up, RST is kept active
for approximately 350ms after the power supply has reached the selected tolerance. This allows the power
supply and microprocessor to stabilize before RST is released.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS1233AZ15 | 制造商:DALLAS SEMI 功能描述: |
| DS1233AZ-15 | 功能描述:监控电路 3.3V EconoReset 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 |
| DS1233AZ-15/T&R | 制造商:Maxim Integrated Products 功能描述:ECONO RESET 3.3V SOT223 (15%)-TRL - Tape and Reel 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述:IC ECONORESET 3.3V 15% SOT-223 |
| DS1233AZ-15/T&R | 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 |
| DS1233AZ-15/TR/C17 | 功能描述:监控电路 3.3V EconoReset 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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