MAX700 데이터 시트보기 (PDF) - Maxim Integrated

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MAX700

Power-Supply Monitor with Reset

Maxim Integrated 

MAX700/MAX701/MAX702

Power-Supply Monitor with Reset

MR 1

1M

SENSE 2

COMPARATOR

1.29VREF

HYST 3

GND 4

8 VCC

7 CTL

150k

MAX700

R RC

R OSC

6 RESET

5 RESET

MANUAL

RESET

BUTTON

MAX700

1 MR

8

VCC

2

N.C.

SENSE

3

HYST

7

CTL

6

RESET

4

GND

RESET 5

+5V

N.C.

TO µP

Figure 1. MAX700 Block Diagram

Figure 2. MAX700 Typical Connection Diagram

R1

VIN

MANUAL

RESET

BUTTON

MAX700

1 MR

8

VCC

2

SENSE

7

CTL

VIN 3V TO 15V

R2

R3

3

HYST

4

GND

6

RESET

RESET 5

N.C.

TO µP

( ) R1 = R2

VL

1.29

-1

VL = LOWER VOLTAGE THRESHOLD

R3 =

VTR1

VU - VL

VU = UPPER VOLTAGE THRESHOLD

HYSTERESIS = VU - VL

Figure 3. MAX700 Connected for External Senses and

Hysteresis

Figure 4 shows the RESET output of the MAX700/

MAX701/MAX702 in the correct state for VCC voltages

down to 0V. Note the effect of the built-in hysteresis on

the trigger lever of RESET.

RESET

2V/div

0V

VCC

2V/div

0V

1s/div

Figure 4. Typical MAX700/MAX701/MAX702 RESET Output vs.

VCC

Package Information

For the latest package outline information and land patterns

(footprints), go to www.maximintegrated.com/packages. Note

that a “+”, “#”, or “-” in the package code indicates RoHS status

only. Package drawings may show a different suffix character, but

the drawing pertains to the package regardless of RoHS status.

PACKAGE

TYPE

8 PDIP

8 Narrow SO

PACKAGE

CODE

P8+2

S8+4

OUTLINE

NO.

21-0143

21-0041

LAND

PATTERN NO.

—

90-0096

www.maximintegrated.com

Maxim Integrated │  5

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