MAX6460 Datasheet

• Wide Supply Voltage Range, 4V to 28V
• Internal 2.25V ±2.5% Reference
• Low Current (3.5µA, typ at 12V)
• Open-Drain n-Channel Output (28V Compliant)
• Internal Threshold Hysteresis Options (0.5%)
• Two IN-to-OUT Timeout Period Options (50µs, 150ms)
• Internal Undervoltage Lockout
• Immune to Short Voltage Transients
• Small SOT23 Packages
• Few External Components
• Fully Specified from -40°C to +125°C
• Enables Functional Safety at System Level

• Automotive
• Industrial
• Multicell Battery-Stack Powered Equipment
• Networking
• Notebooks, eBooks
• Overvoltage Monitoring/Protection
• Telecom
• Undervoltage Monitoring/Shutdown
• Window Voltage Detection Circuitry

The MAX6460 high supply voltage, low-power voltage monitors operate over a 4V to 28V supply voltage range. Each device includes a precision bandgap reference, one or two low-offset voltage comparators, internal threshold hysteresis, power-good or reset timeout options, and one or two high-voltage open-drain outputs. Two external resistors (three for window detection) set the trip threshold voltages.

The MAX6460 includes a single comparator and an internal reference, and can also accept an external reference. The inverting and noninverting inputs of the comparator are externally accessible to support positive or negative voltage monitors and to configure the device for active-high or active-low output logic.

TThe MAX6460 offer only a fixed 50µs timeout period. Internal threshold hysteresis options (0.5% for the MAX6460) reduce output chatter in noise-sensitive applications. Each device is available in a small SOT23 package and specified over the extended temperature range of -40°C to +125°C.