(Hong Kong)
Product Summary
The MAX791CPE is a Microprocessor Supervisory Circuit. It reduces the complexity and number of components needed to monitor power-supply and battery-control functions in uP systems. The 50uA supply current makes the MAX791CPE ideal for use in portable equipment, while the 6ns chip-enable propagation delay and 250mA output capability (25mA in battery-backup mode) make it suitable for larger, higher-performance equipment. The applications of the MAX791CPE are Computers, Critical μP Power Monitoring, Controllers, Intelligent Instruments, Portable/Battery-Powered Equipment.
Parametrics
MAX791CPE absolute maximum ratings: (1)Input Voltage (with respect to GND): VCC:-0.3V to +6V, VBATT:-0.3V to + 6V, All Other Inputs:-0.3V to (VOUT + 0.3V); (2)Input Current: VCC Peak:1.0A, VCC Continuous:250mA, VBATT Peak:250mA, VBATT Continuous:25mA, GND, BATT ON:100mA, All Other Outputs:25mA; (3)Continuous Power Dissipation:842mW; (4)Operating Temperature Ranges:O℃ to +70℃; (5)Storage Temperature Range:-65℃ to +160℃; (6)Lead Temperature (soldering, 10sec):+300℃.
Features
MAX791CPE features: (1)Precision 4.65V Voltage Monitoring; (2)200ms Power-OK/Reset Time Delay; (3)ndependent Watchdog Timer—Preset or Adjustable; (4)1μA Standby Current; (5)Power Switching; (6)250mA Output in VCC Mode; (7)25mA Output in Battery-Backup Mode; (8)On-Board Gating of Chip-Enable Signals; (9)Memory Write-Cycle Completion; (10)6ns CE Gate Propagation Delay; (11)MaxCap or SuperCap Compatible; (12)Voltage Monitor for Power-Fail or Low-Battery Warning; (13)Backup-Battery Monitor; (14)Guaranteed RESET Valid to VCC = 1V.
Diagrams
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 MAX791CPE |
Maxim Integrated Products |
Supervisory Circuits |
Data Sheet |
Negotiable |
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MAX791CPE+ |
Maxim Integrated Products |
Supervisory Circuits MPU Supervisor |
Data Sheet |
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