Voltage Supervisors | MAX809

Voltage Supervisor, Very Low Supply Current, 3-Pin Microprocessor, Reset Monitor

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Overview

The MAX809/NCV809 and MAX810 are cost-effective system supervisor circuits designed to monitor VCC in digital systems and provide a reset signal to the host processor when necessary. No external components are required.

The reset output is driven active within 10 µsec of VCC falling through the reset voltage threshold. Reset is maintained active for a timeout period which is trimmed by factory after VCC rises above the reset threshold. The MAX810 has an active-high RESET output while the MAX809 has an active-low RESETbar output. Both devices are available in a SOT-23 and SC-70 packages.

The MAX809/810 are optimized to reject fast transient glitches on The VCCline. Low supply current of 0.5 µA (VCC = 3.3 V) makes these devices suitable for battery powered applications.

  • Computers
  • Embedded Systems
  • Battery Powered Equipment
  • Critical Microprocessor Power Supply Monitoring
  • Body Electronic
  • Braking
  • Infotainment
  • Instrument Cluster
  • Nagivator
  • Occupant Comfort
  • Occupant Protection
  • Powertrain

  • Precision VCC Monitor for 1.5 V, 1.8V, 2.5 V, 3.0 V, 3.3 V and 5.0 V supplies
  • Precision Monitoring Voltages from 1.2 V to 4.9 V Available in 100 mV Steps
  • Four Guaranteed Minimum RESET Output Duration
    (1ms, 20ms, 100ms and 140ms)
  • RESET Output Guaranteed to VCC = 1.0 V
  • Low 1.0 µA Supply Current
  • VCC Transient Immunity
  • Small SOT-23 and SC-70 Package
  • No External Components
  • Wide Operating Temperature: -40°C to 105°C
  • NCV Version for Automotive

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Reference Price

MAX809SQ308T1G

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CAD Model

Pb

A

H

P

SC-70-3 / SOT-323-3

419-04

1

260

REEL

3000

N

1

5.5

3.08

0.5

Low

Yes

No

No

$0.1597

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MAX809STRG

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CAD Model

Pb

A

H

P

SOT-23 (TO-236) 2.90x1.30x1.00, 1.90P

318

1

260

REEL

3000

Y

1

5.5

2.93

0.5

Low

Yes

No

No

$0.1128

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Reliability Data

Die Related Summary Data

Device: MAX809SQ308T1G

Equivalent to wafer fab process: ONC25

Product Technology

Product Technology

Equivalent Device-Hours

MTBF/MTTF in Hours

FITS

ONC25

1

2712519294

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Re-calculate Data

Data is based on the following assumptions.

Note: The temperature and confidence level may be adjusted to your requirements.

Disclaimer: A reliability FIT rate calculated using this tool shall not be used for any functional safety purpose. In case a raw FIT rate needs to be estimated for a component which is targeted to be used in a safety critical application (i.e. compliant to ISO 26262 standard) it should be calculated according to generic safety standards (IEC62380, IEC61709, SN29500, FIDES, etc.)

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