DS1233Z-15+

The DS1233Z-15+ is a 5V EconoReset monitor in 4 pin SOT-223 package. The DS1233 EconoReset monitors two vital conditions for a microprocessor. The first function is to monitor the status of the power supply. 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 detected in 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. The second function of the DS1233 is pushbutton reset control. The DS1233 debounces a pushbutton closure and will generate a 350ms reset pulse upon release.

• Supply voltage range is 1.2V to 5.5V
• Operating temperature range from -40°C to 85°C
• Vcc trip point is 4.125V
• Automatically restarts microprocessor after power failure
• Monitors pushbutton for external override
• Accurate 15% microprocessor 5V power supply monitoring
• Output capacitance is 10pF
• Reduces need for discrete components
• Internal 5Kohm pull-up resistor
• Operating current is 50µA

Ứng Dụng

System Monitoring

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