Формирователи импульса сброса MAX6707ASKA+T

Схема контроля со сторожевым таймером , ручной, открытый сток, 2 монитора, 1.2 - 5.5В, 200мс задержка

The MAX6707ASKA+T from Maxim Integrated Products is a low voltage, µP supervisor with power-fail in/out, manual reset and watchdog timer in 8 pin SOT-23 package. It reduces complexity and components required to monitor power supply functions in µP systems and significantly improve system reliability and accuracy compared to separate ICs or discrete components. It provides four functions such as, a reset output during power-up, power-down and brownout conditions, an independent watchdog output that goes low if the watchdog input has not been toggled within 1.6s, a 0.62V threshold detector for power-fail warning and an active-low manual reset input. MAX6707A monitors a single-supply voltage to drive a single reset output and include an independent adjustable power-fail-in/power-fail-out comparator. It is used in computers, controllers, intelligent instruments, critical µP power monitoring, white goods, networking and telecommunications applications.

• Operating voltage range is 1.2V to 5.5V at operating temperature range from -40°C to 125°C
• Active-low WDO deasserts when active-low MR is pulled low
• Active low open-drain reset output, 60ppm
• °C reset threshold temperature coefficient
• Precision monitoring of +5V, +3.3V, +3V and +2.5V supply voltages
• Reset valid to VCC = 1V
• Immune to short falling VCC transients
• Low cost, few external components
• Reset threshold of 2.93V and reset timeout period of 200ms at TA = -40°C to +85°C
• Several pin-outs to accommodate variety of multivoltage microprocessor supervision applications

• Power-fail Input with independent output, monitors inputs down to 0.62V

Области применения

Мониторинг Системы, Потребительская Электроника, Переносные Устройства