MIC2755BMM(2000) Просмотр технического описания (PDF) - Micrel

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Компоненты Описание

производитель

MIC2755BMM
(Rev.:2000)

Battery System Supervisor

Micrel 

VMAIN

R1

1.77M

Lithium

Coin

Cell

R4

436k

R5

564k

R2

13.2k

R3

1.21M

RPULLUP

MIC2755

VDD

/POF

PTH

/NMI

NTH

/RST

RTH(/MR) GND

MIC5205-3.3

IN OUT

EN GND

Backup

Power

3.3V

Power Rail

RPULLUP RPULLUP

Power Fail

Warning Flag

System

Reset

Figure 5. Voltage Supervisor and Backup Battery Monitor

VBAT

R4

R1

651k 1.77M

R5

R2

349k 13.2k

R3

1.21M

RPULLUP

MIC2755

VDD

/POF

PTH

/NMI

NTH

/RST

RTH(/MR) GND

MIC5245-3.3

IN OUT

EN GND

3.3V

Power Rail

RPULLUP RPULLUP

Power Fail

Warning Flag

System

Reset

Figure 6. Voltage Supervisor With Power Fail Warning

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