MAXIM MAX16059ATT17+

The MAX16056–MAX16059 are ultra-low-current 125nA (typ) microprocessor (μP) supervisory circuits that moni­ tor a single system supply voltage. These devices assert an active-low reset signal whenever the VCC supply volt­ age drops below the factory-trimmed reset threshold, manual reset is pulled low, or the watchdog timer runs out (MAX16056/MAX16058). The reset output remains asserted for an adjustable reset timeout period after VCC rises above the reset threshold. Factory-trimmed reset threshold voltages are offered from 1.575V to 4.625V in approximately 100mV increments.

These devices feature adjustable reset and watchdog timeout using external capacitors. The MAX16056/ MAX16058 contain a watchdog timer with a watchdog select input (WDS) that multiplies the watchdog timeout period by 128. The MAX16057/MAX16059 do not have the watchdog feature.

The MAX16056–MAX16059 are available in either push­ pull or open-drain output-type configurations. These devices are fully specified over the -40℃ to +125℃ automotive temperature range. The MAX16056/MAX16058 are available in an 8-pin TDFN package, and the MAX16057/MAX16059 are avail­ able in a 6-pin TDFN package.

• Reduced Power Requirements
  • Ultra-Low 125nA (typ) Supply Current
  • 1.1V to 5.5V Operating Supply Range
• Configurable Circuit Enables Flexible Designs
  • Factory-Set Reset Threshold Options from 1.575V to 4.625V in Approximately 100mV Increments
  • Capacitor-Adjustable Reset Timeout
  • Capacitor-Adjustable Watchdog Timeout (MAX16056/MAX16058)
  • Watchdog Timer Capacitor Open Detect Function
  • Optional Watchdog Disable Function (MAX16056/ MAX16058)
  • Manual-Reset Input
  • Push-Pull or Open-Drain RESET Output Options
• Integrated Features Increases System Robustness
  • Power-Supply Transient Immunity
  • Guaranteed RESET Valid for VCC ≥ 1.1V
• Saves Board Space
  • 3mm x 3mm TDFN Package

• Portable/Battery-Powered Equipment
• PDAs/Cell Phones
• MP3 Players/Pagers
• Glucose Monitors/Patient Monitors Metering/HVAC