Формирователи импульса сброса MAX16001ATE+

Схема контроля микропроцессора , 4 монитора, 1В-5.5В питание, выход сброса с активным низким

The MAX16001ATE+ is a quad voltage microprocessor (µP) supervisory circuit in 16 pin TQFN package. It is a low voltage supervisory circuit for complex multivoltage systems and has independent outputs for each monitored voltage. It offers a reset output that asserts whenever any of the monitored voltages fall below their respective thresholds or the manual reset input is asserted. The reset output remains asserted for the reset timeout after all voltages are above their respective thresholds and the manual reset input is deasserted. The minimum reset timeout is internally set to 140ms or can be adjusted with an external capacitor. All open-drain outputs have internal 30µA pull-ups that eliminate the need for external pull-up resistors. However, each output can be driven with an external voltage up to 5.5V. It features a manual reset input, a tolerance pin for selecting 5% or 10% input thresholds and a margin enable function for deasserting the outputs during margin testing.

• Supply voltage range is 1V to 5.5V
• Operating temperature range from -40°C to 125°C
• Monitors three fixed 3.3V, 2.5V, 1.8V voltages and one adjustable voltage
• Adjustable thresholds monitor voltages down to 0.4V
• Open-drain outputs with internal pull-ups reduce the number of external components
• Fixed 140ms(min) or capacitor adjustable reset timeout
• Manual reset, margin enable and tolerance select inputs
• Watchdog timer that asserts RESET(complementary)
• Watchdog timeout period is 1.6sec and start-up delay after reset is 54sec

Области применения

Мониторинг Системы, Переносные Устройства, Связь и Сеть