MIC4426/7/8
Dual 1.5A-Peak Low-Side MOSFET Drivers
Features
General Description
• Bipolar/CMOS/DMOS Construction
• Latch-Up Protected to >500 mA Reverse Current
• 1.5A-Peak Output Current
• 4.5V to 18V Operating Range
• Low Quiescent Supply Current
- 4 mA at Logic 1 Input
The MIC4426/4427/4428 family are highly reliable dual
low-side MOSFET drivers fabricated on
a
BiCMOS/DMOS process for low power consumption
and high efficiency. These drivers translate TTL or
CMOS input logic levels to output voltage levels that
swing within 25 mV of the positive supply or ground.
Comparable bipolar devices are capable of swinging
only to within 1V of the supply. The MIC4426/7/8 is
available in three configurations: dual inverting, dual
non-inverting, and one inverting plus one non-inverting
output.
- 400 μA at Logic 0 Input
• Switches 1000 pF in 25 ns
• Matched Rise and Fall Times
• 7Ω Output Impedance
The
replacements
MIC1426/1427/1428
MIC4426/4427/4428
for the
with
are
MIC426/427/428
improved electrical
pin-compatible
• <40 ns Typical Delay
and
• Logic-Input Threshold Independent of Supply
Voltage
performance and rugged design. They can withstand
up to 500 mA of reverse current (either polarity) without
latching and up to 5V noise spikes (either polarity) on
ground pins.
• Logic-Input Protection to –5V
• 6 pF Typical Equivalent Input Capacitance
• 25 mV Max. Output Offset from Supply or Ground
• Replaces MIC426/7/8 and MIC1426/7/8
Primarily intended for driving power MOSFETs,
MIC4426/7/8 drivers are suitable for driving other loads
(capacitive, resistive, or inductive) that require
low-impedance, high peak current, and fast switching
time. Other applications include driving heavily loaded
clock lines, coaxial cables, or piezoelectric
transducers. The only load limitation is that total driver
power dissipation must not exceed the limits of the
package.
• Dual inverting, dual non-inverting, and inverting/
non-inverting configurations
• ESD Protection
Applications
• MOSFET Driver
• Clock Line Driver
See MIC4126/4127/4128 for high power and narrow
pulse applications.
• Coax Cable Driver
• Piezoelectric Transducer Driver
Package Types
MIC4428
SOIC-8 (M)
MSOP-8 (MM)
PDIP-8 (N)
(Top View)
MIC4426
SOIC-8 (M)
MSOP-8 (MM)
PDIP-8 (N)
(Top View)
MIC4427
SOIC-8 (M)
MSOP-8 (MM)
PDIP-8 (N)
(Top View)
MIC4426
MIC4426
A
MIC4427
MIC4427
A
MIC4428
MIC4428
A
NC
INA
NC
NC
INA
NC
NC
INA
NC
1
2
3
4
8
7
6
5
1
2
3
4
8
7
6
5
1
2
3
4
8
7
6
5
2
4
7
5
2
4
7
5
2
4
7
5
OUTA
VS
OUTA
VS
OUTA
VS
GND
INB
GND
INB
GND
INB
B
B
B
OUTB
OUTB
OUTB
Dual
Dual
Inverting +
Inverting
Noninverting
Noninverting
2019 Microchip Technology Inc.
DS20006202A-page 1