PST623XW 데이터 시트보기 (PDF) - Mitsumi

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PST623XW

System Reset Monolithic IC

Mitsumi 

MITSUMI

Notes on Using PST623

1. Input voltage rise and fall

System Reset PST623

VS+0.4V

VS

VS-0.4V

30µS

Be sure to give an incline of more than 30µS to rise and fall for input with varied power supply voltage (VCC)

and bleeder resistance.

Also, when setting input bleeder resistance, VS pin input current is affected and the detection voltage setting

will differ from the set value if current on the bleeder resistor is too low.

Use input bleeder resistor R2 at 250kΩ or less.

2. Delay time setting

H transmission delay time can be set easily as follows from the TC pin, using the external capacitor.

T = Cd (2.33 106) [S]

Use the external capacitor at 1µF (approx. 2.33S) or less.

Characteristics

Current consumption for OFF

70

65

60

55

50

ICC 45

(µA) 40

35

30

25

20

15

0 1 2 3 4 5 6 7 8 9 10

VCC (V)

Detection voltage

2

1.9

1.8

1.7

1.6

1.5

1.4

1.3

1.2

1.1

1

-30 -10 10 30 50 70

H transport delay time (S)

H transport delay time

101

100

10-1

10-2

10-3

10-4

10-5

10-4

10-3

10-2

10-1

100

Capacitance (µF)

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