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

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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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Product

Status

ECAD Models

Compliance

Package Type

Case Outline

MSL Type

MSL Temp (°C)

Container Type

Container Qty.

ON Target

Voltages Monitored

VCC Max (V)

V(TO) Typ (V)

IQ Typ (µA)

Reset Active State

Reset Timer

Manual Reset

Watchdog Timer

Pricing ($/Unit)

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NCV809SN293D2T1G

Active

Pb

A

H

P

SOT-23-3

1

260

REEL

3000

Y

1

5.5

2.93

0.5

Low

Yes

No

No

$0.1173

More Details

NCV809STRG

Lifetime

Pb

A

H

P

SOT-23-3

1

260

REEL

3000

N

1

5.5

2.93

0.5

Low

Yes

No

No

$0.2141

More Details

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