MAX6700UT 查看數據表（PDF） - Maxim Integrated

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MAX6700UT

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

ALL DEVICES ARE POWERED FROM IN2, VCC (3.0V/3.3V). RESET IS VALID IF VIN1 OR VIN2 IS GREATER THAN 1V, OR IF VCC IS GREATER THAN 2V (MAX6710Q ONLY)

IN1

(ADJ)

MAX6710

IN2, VCC

(3.3V/3V)

IN3

(2.5V/1.8V)

NOR

GATE

TIME-

OUT

(200ms)

IN2, VCC

RESET

UVLO

IN4

(ADJ)

0.62V

REFERENCE

Figure 2. MAX6710 Functional Diagram

Applications Information

Reset Output

The MAX6700 RESET output asserts low when any

monitored IN_ voltage drops below its specified reset

threshold and remains low for the propagation delay

(5µs) after all inputs exceed their thresholds (Figure 3).

The MAX6710 provides an extended reset timeout peri-

od of 140ms (min). The output is open drain with a

weak internal pullup to the monitored IN2 or VCC supply

(10µA typ). For many applications no external pullup

resistor is required to interface with other logic devices.

An external pullup resistor to any voltage from 0 to 5.5V

can overdrive the internal pullup if interfacing to differ-

ent logic-supply voltages (Figure 4). Internal circuitry

prevents reverse current flow from the external pullup

voltage to IN2.

6 _______________________________________________________________________________________

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