Analog Devices / Maxim Integrated MAX6746监控电路
Maxim MAX6746低功耗微处理器(µP)监控电路用于监视1.575V至5V单/双路系统电源电压，并为复位和看门狗功能提供最大可调节性。这些器件在VCC 电源电压或RESET IN跌至复位门限以下或手动复位被拉至低电平时，发出复位信号。在VCC 和RESET IN上升至复位门限以上后，复位信号在一个复位超时周期内仍保持复位有效。复位功能不受电源瞬变影响。复位和看门狗延时可通过外部电容调节。MAX6746微处理器带有一个看门狗选择输入引脚，能够使看门狗超时周期扩展128倍。MAX6746微处理器具有推挽式或漏极开路/RESET输出。MAX6746微处理器采用8引脚SOT23封装，工作于汽车级温度范围(-40℃至+125℃)。
The MAX6746 microprocessors are available with a push-pull or open-drain active-low RESET output. ADI MAX6746 microprocessors are available in an 8-pin SOT23 package and are fully specified over the automotive temperature range (-40°C to +125°C).
特性
- Factory-set reset threshold options from 1.575V to 5V in ~100mV increments
- Single/dual voltage monitoring
- Capacitor-adjustable reset timeout
- Capacitor-adjustable watchdog timeout
- Min/max (windowed) watchdog option
- Manual reset input option
- Guaranteed active-low RESET valid for VCC > 1V
- 3.7µA Supply current
- Push-pull or open-drain active-low RESET output options
- Power-supply transient immunity
- Small 8-Pin SOT23 packages
应用
- Automotive
- Battery-powered computers/controllers
- Computers
- Critical µP monitoring
- Embedded controllers
- Intelligent instruments
- Medical equipment
- Portable equipment
- Set-top boxes
发布日期: 2014-02-11
| 更新日期: 2023-04-17