MAX6700UT-T 查看數據表（PDF） - Maxim Integrated

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MAX6700UT-T

Low-Voltage, High-Accuracy, Triple/Quad Voltage µP Supervisory Circuits in SOT Package

Maxim Integrated 

Low-Voltage, High-Accuracy, Triple/Quad

Voltage µP Supervisory Circuits in SOT Package

VCC

VCC

IN1

VCC

IN3

MAX6700

VCC

RESET

VCC

IN4

UVLO

0.62V

REFERENCE

Figure 1. MAX6700 Functional Diagram

Detailed Description

The MAX6700/MAX6710 are very small, low-power,

triple/quad voltage µP supervisory circuits designed to

maintain system integrity in multisupply systems

(Figures 1 and 2). The MAX6710 offers several internally

trimmed undervoltage threshold options for monitoring

5.0V, 3.3V, 3.0V, 2.5V, and 1.8V supplies. The

MAX6700/MAX6710 offer one to three adjustable thresh-

olds for monitoring voltages down to 0.62V.

The triple/quad voltage monitors include an accurate

bandgap reference, precision comparators, and a series

of internally trimmed resistor-divider networks to set the

factory-fixed reset threshold options. The resistor net-

works scale the specified IN_ reset voltages to match the

internal bandgap reference/comparator voltage.

Adjustable threshold options bypass the internal resistor

networks and connect directly to one of the comparator

inputs (use an external resistor-divider network for

threshold matching). The MAX6700/MAX6710Q provide

a separate unmonitored power-supply input (VCC) and

three adjustable voltage inputs.

Each of the internal comparators has a typical hysteresis

of 0.3% with respect to its reset threshold. This built-in

hysteresis improves the monitor’s immunity to ambient

noise without significantly reducing threshold accuracy.

The MAX6700/MAX6710 are immune to short IN_ tran-

sients. See the Typical Operating Characteristics for a

glitch immunity graph.

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