MAX6730
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MAX6730

Single-/Dual-/Triple-Voltage µP Supervisory Circuits with Independent Watchdog Output

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Single-/Dual-/Triple-Voltage µP Supervisory Circuits with Independent Watchdog Output Monitor Down to 0.63V

Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Part Details
Part Models 10
1ku List Price Starting From $2.02
Features
  • VCC1 (Primary Supply) Reset Threshold Voltages from +1.575V to +4.63V
  • VCC2 (Secondary Supply) Reset Threshold Voltages from +0.79V to +3.08V
  • Adjustable RSTIN Threshold for Monitoring Voltages Down to +0.63V (MAX6734/MAX6735 Only)
  • Six Reset Timeout Options
  • Watchdog Timer with Independent Watchdog Output
    • 35s (min) Initial Watchdog Startup Period
    • 1.12s (min) Normal Watchdog Timeout Period
  • Manual Reset Input (MAX6730/MAX6731/MAX6734/MAX6735)
  • Guaranteed Reset Valid down to VCC1 or VCC2 = +0.8V
  • Push-Pull Active-Low RESET or Open-Drain Active-Low RESET Output
  • Immune to Short VCC Transients
  • Low Supply Current: 14µA (typ) at +3.6V
  • Small 6-Pin and 8-Pin SOT23 Packages
  • AEC-Q100 Qualified: MAX6734KATGD3/V+T, MAX6734KALTD3/V+T
Additional Details
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The MAX6730–MAX6735 single-/dual-/triple-voltage microprocessor (µP) supervisors feature a watchdog timer and manual reset capability. The MAX6730–MAX6735 offer factory-set reset thresholds for monitoring voltages from +0.9V to +5V and an adjustable reset input for monitoring voltages down to +0.63V. The combination of these features significantly improves system reliability and accuracy when compared to separate ICs or discrete components.

The active-low reset output asserts and remains asserted for the reset timeout period after all the monitored voltages exceed their respective thresholds. Multiple factory-set reset threshold combinations reduce the number of external components required. The MAX6730/MAX6731 monitor a single fixed voltage, the MAX6732/MAX6733 monitor two fixed voltages, and the MAX6734/MAX6735 monitor two fixed voltages and one adjustable voltage. All devices are offered with six minimum reset timeout periods ranging from 1.1ms to 1120ms.

The MAX6730–MAX6735 feature a watchdog timer with an independent watchdog output. The watchdog timer prevents system lockup during code execution errors. A watchdog startup delay of 54s after reset asserts allows system initialization during power-up. The watchdog operates in normal mode with a 1.68s delay after initialization. The MAX6730/MAX6732/MAX6734 provide an active-low, open-drain watchdog output. The MAX6731/MAX6733/MAX6735 provide an active-low, push-pull watchdog output.

Other features include a manual reset input (MAX6730/MAX6731/MAX6734/MAX6735) and push-pull reset output (MAX6731/MAX6733/MAX6735) or open-drain reset output (MAX6730/MAX6732/MAX6734). The MAX6730-MAX6733 are offered in a tiny SOT23-6 package. The MAX6734/MAX6735 are offered in a space-saving SOT23-8 package. All devices are fully specified over the extended -40°C to +85°C temperature range.

Applications

  • Automotive
  • Computers/Servers
  • Industrial Equipment
  • Multivoltage Systems
  • Portable Battery-Powered Equipment
  • Printers and Faxes
  • Set-Top Boxes
  • Telecom/Networking Equipment
Part Models 10
1ku List Price Starting From $2.02

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Software & Part Ecosystem

Software & Part Ecosystem

Reference Designs

Reference Designs 1

MAXREFDES1154

Configurable 4-Channel RTD/TC Measurement System Using the MAX11410

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MAXREFDES1154

Configurable 4-Channel RTD/TC Measurement System Using the MAX11410

Configurable 4-Channel RTD/TC Measurement System Using the MAX11410

Features and Benefits

  • Highly accurate measurement
  • Four channels
  • Each channel can be configured as either RTD or TC input
  • Supports 2-wire and 3-wire RTD
  • Supports all types of thermocouple
  • Thermocouple with RTD for cold junction compensation
  • Sensor open detection
  • 24V input protection
  • Isolated power and data
  • Board-level calibration
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