CAX803, CAX809, CAX810 3-Pin Microprocessor Power Supply Supervisors Description The CAX803, CAX809, and CAX810 are supervisory circuits that monitor power supplies in digital systems. The CAX803, CAX809, and CAX810 are direct replacements for the MAX803, MAX809 and CAX803, CAX809, CAX810 Table 1. THRESHOLD SUFFIX SELECTOR Nominal Threshold Voltage Threshold Suffix Designation 4.63 V L 4.55 V H 4.38 V M 4.00 V J 3.08 V T 2.93 V S 2.63 V R 2.32 V Z Table 2. PIN DESCRIPTIONS Pin Number CAX803 CAX809 CAX810 Name Description 1 1 1 GND Ground 2 2 RESET Active LOW reset. RESET is asserted if V falls below the reset threshold and CC remains low for at least 140 ms after V rises above the reset threshold. CC 2 RESET Active HIGH reset. RESET is asserted if V falls below the reset threshold and CC remains high for at least 140 ms after V rises above the reset threshold. CC 3 3 3 V Power supply voltage that is monitored. CC Table 3. ABSOLUTE MAXIMUM RATINGS Parameter Rating Units Any pin with respect to ground 0.3 to +6.0 V Input Current, V 20 mA CC Output Current, RESET, RESET 20 mA Rate of Rise, V 100 V/ s CC Continuous Power Dissipation mW Derate 4 mW/C above 70C (SOT23) 320 Operating Temperature Range 40 to +85 C Storage Temperature Range 65 to +105 C Lead Soldering Temperature (10 sec) 300 C Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability.