APX803-29SAG-7

APX803-29SAG-7 is a 3-pin microprocessor reset circuit. It provides excellent circuit reliability and low cost by eliminating external components and adjustments when used with 5V, 3.3V, and 3.0V powered circuits. This circuit perform a single function: they assert a reset signal on power up and whenever the VCC supply voltage declines below a preset threshold, keeping it asserted for a fixed period of time after VCC has risen above the reset threshold. For the APX803D this period is a minimum of 1ms while for other APX803 variants, it is at least 140ms. The reset comparator is designed to ignore fast transients on VCC, and the outputs are guaranteed to be in the correct logic state for VCC down to 1V. Applications include computers, controllers, intelligent instruments, critical µP and µC power monitoring, and portable/battery-powered equipment.

• Fully specified over temperature, guaranteed reset valid to VCC = 1V
• No external component, supply voltage range from 1.1V to 5.5V
• Supply current is 30μA typical at (VTH + 0.2V, TA = +25°C)
• Reset threshold is 2.93V typical at (TA = +25°C)
• Reset threshold tempco is 30ppm/°C typical at (TA = +25°C)
• Reset threshold hysteresis is 40mV typical at (TA = +25°C)
• VCC to RESET delay is 20µs typical at (TA = +25°C)
• Reset active timeout period is 3.3ms maximum at (TA = 0°C to +85°C)
• Junction temperature range from -40°C to +105°C
• SOT23 package