X40021

® X40020, X40021 Data Sheet May 17, 2006 FN8112.1 Dual Voltage Monitor with Integrated CPU Supervisor and System Battery Switch FEATURES Dual voltage detection and reset assertion —Three standard reset threshold settings (4.6V/2.9V, 4.6V/2.6V, 2.9V/1.6V) —VTRIP2 programmable down to 0.9V —Adjust low voltage reset threshold voltages using special programming sequence —Reset signal valid to VCC = 1V —Monitor two voltages or detect power fail Battery switch backup VOUT: 5mA to 50mA from VCC; 250µA from VBATT Fault detection register Selectable power-on reset timeout (0.05s, 0.2s, 0.4s, 0.8s) Selectable watchdog timer interval (25ms, 200ms, 1.4s, off) Debounced manual reset input Low power CMOS —25µA typical standby current, watchdog on —6µA typical standby current, watchdog off —1µA battery current in backup mode 400kHz 2-wire interface www.DataSheet4U.com 2.7V to 5.5V power supply operation Available packages —14-lead SOIC, TSSOP Monitor voltages: 5V to 1.6V Memory security Pb-free plus anneal available (RoHS compliant) APPLICATIONS Communications equipment —Routers, hubs, switches —Disk arrays Industrial systems —Process control —Intelligent instrumentation Computer systems —Desktop computers —Network servers X40020, X40021 Standard VTRIP1 Level Standard VTRIP2, Level Suffix 4.6V (±1%) 2.9V(±1.7%) -A 4.6V (±1%) 2.6V (±2%) -B 2.9V(±1.7%) 1.6V (±3%) -C See “Ordering Information” for more details For Custom Settings, call Intersil. DESCRIPTIO...