Low Voltage, High Accuracy,

Quad Voltage μP Supervisory Circuit

Preliminary Technical Data

ADM6710

Rev. PrB

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FEATURES

Accurate monitoring of up to four power supply voltages

5 reset threshold options: 1.8 V to 5 V

Monitors down to 0.62 V (1.5% accuracy)

200 ms typical reset timeout

Open-drain RESET output (10 μA internal pull-up)

Low power consumption (35 μA)

Power supply glitch immunity

Specified from −40º C to +85 ºC

6-lead SOT-23 package

APPLICATIONS

Microprocessor systems

Desktop and notebook computers

Controllers

Data storage equipment

Servers/workstations

FUNCTIONAL BLOCK DIAGRAM

200ms

TIMEOUT

UVLO

0.62V REF

ADM6710

RESET

Figure 1.

GENERAL DESCRIPTION

The ADM6710 is a low voltage, high accuracy supervisory

circuit. This device monitors up to four system supply voltages.

If a monitored power supply voltage falls below the minimum

voltage threshold, a single active low output asserts, triggering a

system reset. The output is open drain with a weak internal

ADM67109Q) of typically 10 μA. Once all voltages rise above

the selected threshold level, the reset signal remains low for the

reset timeout period (200 ms typical).

exceeds 1V, while for the ADM6710Q the output remains valid

The ADM6710 incorporates a variety of internally pretrimmed

undervoltage threshold options for monitoring 5.0 V, 3.3 V, 3.0

V, 2.5 V and 1.8 V supply voltages. The device offers up to three

adjustable thresholds for monitoring voltages down to 0.62 V.

The ADM6710 is available in a 6-lead SOT-23 package and is

suitable for use in a variety of voltage monitoring applications.