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PDF MIC426CN Data sheet ( Hoja de datos )
| Número de pieza | MIC426CN | |
| Descripción | Dual 1.5A-Peak Low-Side MOSFET Driver | |
| Fabricantes | Micrel | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de MIC426CN (archivo pdf) en la parte inferior de esta página. Total 8 Páginas | ||
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MIC426/427/428
MIC426/427/428
Micrel
Dual 1.5A-Peak Low-Side MOSFET Driver
Bipolar/CMOS/DMOS Process
General Description
Features
The MIC426/427/428 are dual high speed drivers. A TTL/ • High Speed Switching (CL = 1000pF) .................. 30ns
CMOS input voltage level is translated into an output voltage • High Peak Output Current ..................................... 1.5A
level swing equal to the supply. The DMOS output will be • High Output Voltage Swing ........................ VS – 25mV
within 25mV of ground or positive supply. Bipolar designs are
GND + 25mV
capable of swinging only within 1 volt of the supply.
• Low Input Current (Logic “0” or “1”) ........................ 1µA
• Low Equivalent Input Capacitance (typ) ................. 6pF
The low impedance high current driver outputs will swing a • TTL/CMOS Input Compatible
1000pF load 18V in 30ns. The unique current and voltage • Available in Inverting & Non-lnverting Configurations
drive qualities make the MIC426/427/428 ideal power MOSFET • Wide Operating Supply Voltage ................ 4.5V to 18V
drivers, line drivers, and dc-to-dc converter building blocks. • Low Power Consumption
Input logic signals may equal the power supply voltage. Input
(Inputs Low) ............................................. 0.4mA
current is a low 1µA making direct interface to CMOS/bipolar
(Inputs High) ................................................ 8mA
switch-mode power supply control integrated circuits possible • Single Supply Operation
as well as open-collector analog comparators.
• Low Output Impedance (typ) ................................... 6Ω
• Pin Out Equivalent to DS0026 & MMH0026
Pin Configuration
NC 1
INA 2
MIC426
MIC426
8 NC
2
7 OUTA
A
7
GND 3
INB 4
Dual
Inverting
6 VS
4
5 OUTB
B
5
NC 1
INA 2
MIC427
MIC427
8 NC
2
7 OUTA
A
7
GND 3
INB 4
6 VS
4
5 OUTB
Dual
Noninverting
B
5
NC 1
INA 2
MIC428
MIC428
8 NC
2
7 OUTA
A
7
GND 3
INB 4
6 VS
4
5 OUTB
Inverting-
Noninverting
B
5
5
Functional Diagram
0.1mA
INA 2kΩ
0.6mA
INVERTING
NONINVERTING
VS
Integrated Component Count:
4 Resistors
4 Capacitors
870 20
52 Transistors
OUTA
1997
0.1mA
INB 2kΩ
0.6mA
INVERTING
NONINVERTING
Ground Unused Inputs
5-9
GND
OUTB
1 page  
MIC426/427/428
Switching Time Test Circuits
VS = 18V
6
2
INA
A
7
4
INB
MIC426
B
5
0.1µF
4.7µF
OUTA
1000pF
OUTB
1000pF
5V
90%
INPUT
10%
0V
VS
90%
tPW
tD1
tF
2.5V
tPW ≥ 0.5µs
tD2 tR
OUTPUT
10%
0V
Figure 1. Inverting Driver Switching Time
VS = 18V
6
2
INA
A
7
4
INB
MIC427
B
5
0.1µF
4.7µF
OUTA
1000pF
OUTB
1000pF
1997
5V
90%
INPUT
10%
0V
VS
90%
OUTPUT
10%
0V
tPW
tD1
tR
2.5V
tPW ≥ 0.5µs
tD2 tF
Figure 2. Noninverting Driver Switching Time
5-13
Micrel
5
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet MIC426CN.PDF ] | |
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