Формирователи импульса сброса MAX6717UKSHD3+T

Схема контроля , ручной, активный низкий, двухтактный, 2 монитора, 0.8В - 5.5В, 210мс, SOT-23-5

The MAX6717UKSHD3+T from Maxim Integrated Products is a dual ultra-low voltage µP supervisory circuit in 5 pin SOT-23 package. This device assert a system reset if any monitored supply falls below its factory trimmed or adjustable threshold and maintain reset for a minimum timeout period after all supplies rise above their thresholds. The integrated dual supervisory circuits significantly improve system reliability and reduce size compared to separate ICs or discrete components. An externally adjustable RSTIN input option allows customers to monitor a third supply voltage down to 0.62V. This device has correct reset output logic state when either VCC1 or VCC2 remains greater than 0.8V. It has open-drain active-low reset outputs along with manual reset input. It is used in multivoltage systems, telecom/networking equipment, computers/servers, portable/battery operated equipment, industrial equipment, printer/fax, set-top boxes.

• Supply voltage range is 800mV to 5.5V, operating temperature range from -40°C to 85°C
• Designed to monitor two system power supply voltages
• Reset timeout period of 140ms (min), 210ms (typ), 280ms (max)
• Reset threshold tempco of 20ppm
• °C, reset threshold hysteresis of 0.5%
• Immune to short VCC transients
• Low supply current 14µA (typ) at 3.6V
• VCC to reset output delay of 20µs
• Monitors primary supply (VCC1) reset threshold voltage of 2.925V
• Monitors secondary supply (VCC2) reset threshold voltage of 1.313V

Области применения

Мониторинг Системы, Переносные Устройства, Промышленное, Потребительская Электроника