onsemi MAX803
The MAX803/NCP803 is a cost−effective system supervisor circuit designed to monitor VCC in digital systems and provide a reset signal to the host processor when necessary. The reset output is driven active within 10 msec of VCC falling through the reset voltage threshold. The MAX803/NCP803 has an open drain active−low RESET output.FEATURES
● Precision VCC Monitor for 1.5 V, 2.5 V, 3.0 V, 3.3 V, and 5.0 V Supplies● Precision Monitoring Voltages from 1.2 V to 4.9 V Available in 100 mV Steps
● Four Guaranteed Minimum Power−On Reset Pulse Width Available (1 ms, 20 ms, 100 ms, and 140 ms)
● RESET Output Guaranteed to VCC = 1.0 V
● Low Supply Current
● VCC Transient Immunity
● No External Components
● Wide Operating Temperature: −40C to 105C
● These Devices are Pb−Free and are RoHS Compliant Typical
APPLICATIONS
● Computers● Embedded Systems
● Battery Powered Equipment
● Critical Microprocessor Power Supply Monitoring VCC C = 100 nF VCC MAX803 NCP803 RESET GND Rpull−up VCC mP RESET GND 3 1 2 MARKING DIAGRAMS SOT−23 (TO−236) CASE 318 1 3 xxx MG G 2 SC−70 (SOT−323) CASE 419 xx MG G 1 xxx = Specific Device Code M = Date Code G = Pb−Free Package (Note: Microdot may be in either location) PIN CONFIGURATION GND 1 3 VCC RESET 2 SOT−23/SC−70 (Top View) ORDERING INFORMATION See detailed ordering and shipping information page 9 of this data sheet.