MB3793-42P View Datasheet(PDF) - Fujitsu

Part Name

Description

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MB3793-42P

POWER-VOLTAGE MONITORING IC WITH WATCHDOG TIMER

Fujitsu 

MB3793-42

s ELECTRICAL CHARACTERISTICS

1. DC Characteristics

Parameter

Power current

Detection voltage

Detection voltage

hysteresis difference

CK input threshold voltage

CK input hysteresis

INH input voltage

Input current

(CK1,CK2,INH)

Reset output voltage

Reset-output minimum

power voltage

Symbol

ICC1

ICC2

VSL

VSH

Conditions

Watchdog timer operation*1

Watchdog timer halt*2

Ta = +25°C

VCC falling

Ta = −40 to +85°C

VCC rising

Ta = +25°C

Ta = −40 to +85°C

Min





4.10

4.05

4.20

4.15

VSHYS VSH - VSL

50

VCIH

VCIL

VCHYS

VIIH

VIIL

IIH

IIL

VOH

VOL











VCK = VCC

VCK = 0 V

IRESET = −5 mA

IRESET = +5 mA

(1.4)

(0.8)

(0.4)

3.5

0



−1.0

4.5



VCCL

IRESET = +50 µA



(VCC = +5 V, Ta = +25°C)

Value

Typ

Unit

Max

27

50

µA

25

45

4.20

4.30

V

4.20

4.35

4.30

4.40

V

4.30

4.45

100

150 mV

1.9

(2.5) V

1.3

(1.8) V

0.6

(0.8) V



VCC

V

0

0.8 V

0

1.0 µA

0

 µA

4.75



V

0.12

0.4 V

0.8

1.2 V

*1: At clock input terminals CK1 and CK2, the pulse input frequency is 1 kHz and the pulse amplitude is 0 V to VCC.

*2: Inhibition input is at High level.

6

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