MIC4421/4422 Micrel, Inc.
M9999-081005 4 August 2005
Figure 1. Inverting Driver Switching Time
Electrical Characteristics: (Over operating temperature range with 4.5V ≤ V
S
≤ 18V unless otherwise specified.)
Symbol Parameter Conditions Min Typ Max Units
INPUT
V
IH
Logic 1 Input Voltage 2.4 1.4 V
V
IL
Logic 0 Input Voltage 1.0 0.8 V
V
IN
Input Voltage Range –5 V
S
+0.3 V
I
IN
Input Current 0V ≤ V
IN
≤ V
S
–10 10 µA
OUTPUT
V
OH
High Output Voltage Figure 1 V
S
–.025 V
V
OL
Low Output Voltage Figure 1 0.025 V
R
O
Output Resistance, I
OUT
= 10mA, V
S
= 18V 0.8 3.6 Ω
Output High
R
O
Output Resistance, I
OUT
= 10mA, V
S
= 18V 1.3 2.7 Ω
Output Low
SWITCHING TIME (Note 3)
t
R
Rise Time Figure 1, C
L
= 10,000pF 23 120 ns
t
F
Fall Time Figure 1, C
L
= 10,000pF 30 120 ns
t
D1
Delay Time Figure 1 20 80 ns
t
D2
Delay Time Figure 1 40 80 ns
POWER SUPPLY
I
S
Power Supply Current V
IN
= 3V 0.6 3 mA
V
IN
= 0V 0.1 0.2
V
S
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.
Test Circuits
IN
MIC4421
OUT
15000pF
V
S
= 18V
0.1µF 4.7µF
0.1µF
IN
MIC4422
OUT
15000pF
V
S
= 18V
0.1µF 4.7µF
0.1µF
t
D1
90%
10%
t
F
10%
0V
5V
t
D2
t
R
V
S
OUT PUT
INPUT
90%
0V
t
PW
≥ 0.5µs
2.5V
t
PW
90%
10%
t
R
10%
0V
5V
t
F
V
S
OUT PUT
INPUT
90%
0V
t
PW
≥ 0.5µs
t
D1
t
D2
t
PW
2.5V
Figure 2. Noninverting Driver Switching Time
