April 1998

5-35

MIC4420/4429

Micrel

5

Figure 1a. Inverting Driver Switching Time

IN

MIC4429

OUT

2500pF

0.1µF

1.0µF

0.1µF

IN

MIC4420

OUT

2500pF

0.1µF

1.0µF

0.1µF

t

D1

90%

10%

t

F

10%

0V

5V

t

D2

t

R

V

S

OUTPUT

INPUT

90%

0V

t

2.5V

t

PW

90%

10%

t

R

10%

0V

5V

t

F

V

S

OUTPUT

INPUT

90%

0V

t

t

D1

t

D2

t

PW

2.5V

Figure 1b. Noninverting Driver Switching Time

Test Circuits

Symbol

Parameter

Conditions

Min

Typ

Max

Units

INPUT

Logic 1 Input Voltage

2.4

V

Logic 0 Input Voltage

0.8

V

Input Voltage Range

–5

V

Input Current

0V

≤ V

–10

10

µA

OUTPUT

High Output Voltage

Figure 1

V

Low Output Voltage

Figure 1

0.025

V

Output Resistance,

3

5

Ω

Output Low

Output Resistance,

2.3

5

Ω

Output High

SWITCHING TIME (Note 3)

Rise Time

32

60

ns

Fall Time

34

60

ns

Delay Time

Figure 1

50

100

ns

Delay Time

Figure 1

65

100

ns

POWER SUPPLY

Power Supply Current

0.45

3.0

mA

0.06

0.4

mA

Operating Input Voltage

4.5

18

V

NOTE 1:

Functional operation above the absolute maximum stress ratings is not implied.

NOTE 2:

Static-sensitive device. Store only in conductive containers. Handling personnel and equipment should be grounded to

prevent damage from static discharge.

NOTE 3:

Switching times guaranteed by design.