Формирователи импульса сброса MAX6705SKA+T

Схема контроля микропроцессора , 1.2В-5.5В питание, выход сброса с активным низким, с открытым стоком

The MAX6705SKA+T is a low voltage, µP supervisor with power-fail in/out, manual reset and watchdog timer in 8 pin SOT-23 package. It reduces the 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. It offers several pin-out options to accommodate a variety of multivoltage microprocessor supervision applications. It is used in intelligent instruments, critical µP power monitoring, white goods and telecommunications applications.

• Supply voltage range is 1.2V to 5.5V
• Operating temperature range from -40°C to 125°C
• Dual active low
• high push-pull reset output
• Precision monitoring of +5V, +3.3V, +3V and +2.5V supply voltages
• Reset timeout delay of 140ms
• Reset valid to VCC = 1V
• Immune to short falling VCC transients
• Low cost, few external components
• Reset threshold of 2.93V at TA = -40°C to +85°C

• Reset timeout period of 200ms at TA = -40°C to +85°C

Области применения

Мониторинг Системы, Потребительская Электроника, Связь и Сеть