MAX6315

PRODUCTION

Open-Drain SOT µP Reset Circuit

Open-Drain Output SOT Reset IC with Customized Reset Thresholds and Timeout Delays

Data Sheet (Rev. 7) Product Selection Table
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Overview

    • Supervisory Circuit Ensures Reliable System Operation with Minimal Power Consumption
      • Precision, Factory-Set VCC Reset Thresholds: 100mV Increments from 2.5V to 5V 
      • Four Reset Timeout Periods Available: 1ms, 20ms, 140ms, or 1120ms (min) 
      • Immune to Short VCC Transients 
      • Open-Drain RESET Output Can Exceed VCC 
      • Guaranteed Over Temperature 
      • 5μA Supply Current
  • Pin Compatible with MAX811
  • Saves Space
    • 4-Pin SOT23 Package

The MAX6315 low-power CMOS microprocessor (μP) supervisory circuit is designed to monitor power supplies in μP and digital systems. It provides excellent circuit reliability and low cost by eliminating external components and adjustments. The MAX6315 also provides a debounced manual reset input.

This device performs a single function: it asserts a reset signal whenever the VCC supply voltage falls below a preset threshold or whenever manual reset is asserted. Reset remains asserted for an internally programmed interval (reset timeout period) after VCC has risen above the reset threshold or manual reset is deasserted. The MAX6315’s open-drain RESET output can be pulled up to a voltage higher than VCC.

The MAX6315 comes with factory-trimmed reset threshold voltages in 100mV increments from 2.5V to 5V. Preset timeout periods of 1ms, 20ms, 140ms, and 1120ms (min) are also available. The device comes in a SOT23 package.

For microcontrollers (μCs) and μPs with bidirectional reset pins, see the MAX6314 data sheet.

 

Applications

  • Computers
  • Controllers
  • Intelligent Instruments
  • Critical μP and μC Power Monitoring
  • Portable/Battery-Powered Equipment
MAX6315
Open-Drain SOT µP Reset Circuit
MAX6315: Typical Operating Circuit
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Documentation

Data Sheet 1

Reliability Data 1

Technical Articles 1

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Software Resources

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Hardware Ecosystem

Parts Product Life Cycle Description
Supervisory Circuits & Reset ICs 4
MAX6328
PRODUCTION 3-Pin, Ultra-Low-Power SC70/SOT µP Reset Circuits
MAX6348
PRODUCTION 3-Pin, Ultra-Low-Power SC70/SOT µP Reset Circuits
MAX6334
PRODUCTION 3-Pin, Ultra-Low-Voltage, Low-Power µP Reset Circuits
MAX6337
PRODUCTION 4-Pin, Ultra Low-Voltage, Low-Power µP Reset Circuits with Manual Reset
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Tools & Simulations

IBIS Model 1

SPICE Model 1

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