ADM8615

Data Sheet Ultralow Power Supervisory ICs with Watchdog Timer and Manual Reset ADM8611/ADM8612/ADM8613/ADM8614/ADM8615 FEATURES Ultralow power consumption with ICC = 92 nA (typical) Continuous monitoring with no blank time Pretrimmed voltage monitoring threshold options 10 options from 2 V to 4.63 V for the ADM8611 20 options from 0.5 V to 1.9 V for the ADM8612/ADM8615 5 options from 2.32 V to 4.63 V for the ADM8613/ADM8614 ±1.3% threshold accuracy over full temperature range Manual reset input (ADM8611/ADM8612/ADM8613/ADM8615) 200 ms (typical) reset timeout Low voltage input monitoring down to 0.5 V (ADM8612/ ADM8615) Watchdog timer (ADM8613/ADM8614/ADM8615) Watchdog function disable input (ADM8613/ADM8614 only) Watchdog timeout extension input (ADM8614 only) Active low, open-drain RESET output Power supply glitch immunity Available in a 1.46 mm × 0.96 mm WLCSP Operational temperature range: −40°C to +85°C APPLICATIONS Portable/battery-operated equipment Microprocessor systems Energy metering Energy harvesting GENERAL DESCRIPTION The ADM8611/ADM8612/ADM8613/ADM8614/ADM8615 are voltage supervisory circuits that monitor power supply voltage levels and code execution integrity in microprocessor-based systems. Apart from providing power-on reset signals, an onchip watchdog timer can reset the microprocessor if it fails to strobe within a preset timeout period. A reset signal can also be asserted by an external push-button through a manual reset input. The ultralow power consum...