MAX6338AUB(2001) 데이터 시트보기 (PDF) - Maxim Integrated

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MAX6338AUB
(Rev.:2001)

Quad Voltage Monitor in µMAX Package

Maxim Integrated 

Quad Voltage Monitor in µMAX Package

VINTH

R1

R2

VREF = 1.23V

( ) R1 = R2

VINTH

1.23

-

1

Figure 6. Setting the Auxiliary Monitor

Auxiliary Input

The adjustable voltage monitor is comparable to an

internal reference of 1.23V as shown in Figure 6. To set

the desired trip level of monitored supply, VINTH,

choose: R1 = R2 [(VINTH / 1.23) - 1)]. For example, for a

voltage detection at 4.5V (assume R2 = 100kΩ), R1 =

265kΩ.

Unused Inputs

The unused inputs (except the auxiliary) are internally

connected to ground through the lower resistors of the

threshold-setting resistor pairs. The auxiliary (AUX)

input, however, must be connected to either ground or

VCC if unused.

Power-Supply Bypassing and Grounding

The MAX6338 operates from a single +2.5V to +5.5V

supply. In noisy applications, connect a 0.1µF capaci-

tor on the supply voltage line close to VCC pin for

bypassing.

Chip Information

TRANSISTOR COUNT: 620

PROCESS: BiCMOS

SUPPLIES

TO BE

MONITORED

Typical Operating Circuit

+2.5V TO +5.5V

(MAY BE ONE OF THE MONITORED VOLTAGES)

VCC

IN1 MAX6338 OUT1

IN2

OUT2

SYSTEM

LOGIC

µP

IN3

OUT3

IN4

OUT4

GND

_______________________________________________________________________________________ 7

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