Description

The MAX6357LSUT is a microprocessor (µP) supervisor designed to significantly improve system reliability and accuracy in electronic devices. It combines the functions of multiple reset voltages into a single component, eliminating the need for separate ICs or discrete components. This supervisor is capable of monitoring multiple power-supply voltages (+2.5V, +3.0V, +3.3V, and +5V) with precision factory-set thresholds. If any input supply voltage drops below its associated threshold, all reset outputs are asserted. Additionally, the output(s) remain valid as long as either input supply voltage remains greater than +1.0V.

Specifications and features

- Precision Monitoring of Multiple +2.5V, +3.0V, +3.3V, and +5V Power-Supply Voltages
- Precision Factory-Set Power-Supply Reset Thresholds
- 20µA Supply Current
- 100ms min Power-On Reset Pulse Width
- Fully Guaranteed Over Temperature
- RESET Valid to VCC5 = 1V or VCC3 = 1V (Guaranteed)
- Power-Supply Transient Immunity
- No External Components for Dual-Voltage Systems
- Small 5- and 6-Pin SOT23 Packages
- Debounced TTL/CMOS-Compatible Manual-Reset Input
- Watchdog Timer 46.4sec Start-Up Timeout, 2.9sec Normal Timeout
- Low Cost

Application Scenarios

- Computers
- Intelligent Instruments
- Controllers
- Multivoltage Systems
- Portable/Battery-Powered Equipment