Формирователи импульса сброса DS1233DZ-10+

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

The DS1233DZ-10+ is a 5V EconoReset monitor in 4 pin SOT-223 package. A precision temperature-compensated reference and comparator circuit is used to monitor the status of the power supply (VCC). It provides a function of detecting out of tolerance power supply conditions and warning a processor based system of impending power failure. When VCC is detested as out of tolerance condition, an internal power fail signal is generated which forces reset to the active state. When VCC returns to an in-tolerance condition, the reset signal is kept in the active state for approximately 350ms to allow the power supply and processor to stabilize.

• Supply voltage range is 1.2V to 5.5V
• Operating temperature range from -40°C to 85°C
• Vcc trip point is 4.375V
• Automatically restarts microprocessor after power failure
• Reduces need for discrete components
• Accurate 10% microprocessor 5V power supply monitoring
• Output capacitance is 10pF
• Internal 5Kohm pull-up resistor
• Output current is 8mA at 0.4V
• Operating current is 50µA

• System Monitoring

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