M62021 データシートの表示（PDF） - MITSUBISHI ELECTRIC

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M62021

SYSTEM RESET IC WITH SWITCH FOR MEMORY BACK-UP

MITSUBISHI ELECTRIC  

TIMING CHART

MITSUBISHI<Dig.Ana.INTERFACE>

M62021L,P,FP

SYSTEM RESET IC WITH SWITCH FOR MEMORY BACK-UP

tpd

5V

VIN

0V

VOUT

tpd

VSH

VSL

∆Vs

V1

V2

V3

V4

V5

CS

RES

RES

V2

V4

V5

VOL(CS)

5V

VIN(VSL)

VOL(RES)

VOL(RES)

VIN(VSL)

V1=VIN-VDROP

V2=VIN-Q4VEB(Di)

V3=VIN(VSL)-VDROP

VOL(RES)

V4=VIN(VSL)-Q4VEB(Di)

V5=VBAT-VF

Input In normal operation

voltage

Output

pin

VOUT

Input voltage:5V

With Q4 set to ON,

a voltage

(VIN-VDROP)is output

RES

The output level is

VOL(RES)

with a logic low

RES

The output level is

VOH(RES)

with a logic low

In failure(instantaneous drop)

Restoration from failure

(instantaneous drop)

In backup state

Input voltage:5V 4V

Each output varies if the input

voltage drops to VSL or under

Input voltage:4V 5V

Input voltage:0V

If the input voltage goes higher Backup voltage:3V

than VSL by 100mV,each out-put

varies after delay produced by the

delay circuit

Q4 is turned OFF.A voltage

(VIN-Q4 VEB(Di) is output by

the diode between E and B of

Q4

Q4 is turned ON after delay and

a voltage(VIN-VDROP) is output

VBAT-VF

As the state shifts from a logic A logic high is maintained,and than

low to logic high,the output level shifts to a logic high

becomes approximately equal to

the input voltage

As the state shifts from a logic A logic low is held,and than shifts

high to logic low,the output level to a logic high

becomes VOL(RES)

The output level is

CS

VOL(CS)

with a logic low

As the state shifts from a logic A logic high is maintained,and than The output is a logic high

low to logic high,the output level shifts to a logic high

and the output level is

becomes the voltage VIN-

VBAT-VF

Q4EB(Di).

MITSUBISHI

ELECTRIC

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