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MIC4125YME Datasheet(PDF) 1 Page - MIC GROUP RECTIFIERS

Part # MIC4125YME
Description  Dual 3A-Peak Low-Side MOSFET Driver Bipolar/CMOS/DMOS Process
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Manufacturer  MIC [MIC GROUP RECTIFIERS]
Direct Link  http://www.cnmic.com
Logo MIC - MIC GROUP RECTIFIERS

MIC4125YME Datasheet(HTML) 1 Page - MIC GROUP RECTIFIERS

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May 2005
1
M9999-052405
MIC4123/4124/4125
Micrel, Inc.
MIC4123/4124/4125
Dual 3A-Peak Low-Side MOSFET Driver
Bipolar/CMOS/DMOS Process
Features
Reliable, low-power bipolar/CMOS/DMOS construction
Latch-up protected to >200mA reverse current
Logic input withstands swing to –5V
High 3A-peak output current
Wide 4.5V to 20V operating range
Drives 1800pF capacitance in 25ns
Short <50ns typical delay time
Delay times consistent with in supply voltage change
Matched rise and fall times
TTL logic input independent of supply voltage
Low equivalent 6pF input capacitance
Low supply current
3.5mA with logic-1 input
350µA with logic-0 input
Low 2.3Ω typical output impedance
Output voltage swings within 25mV of ground or V
S.
‘426/7/8-, ‘1426/7/8-, ‘4426/7/8-compatible pinout
Inverting, noninverting, and differential configurations
Exposed backside pad packaging reduces heat
ePAD SOIC-8L (θ
JA = 58°C/W)
4mm x 4mm MLF™-8L (θ
JA = 45°C/W)
General Description
The MIC4123/4124/4125 family are highly reliable BiC-
MOS/DMOS buffer/driver/MOSFET drivers. They are higher
output current versions of the MIC4126/4127/4128, which
are improved versions of the MIC4426/4427/4428. All three
families are pin-compatible. The MIC4123/4124/4125 driv-
ers are capable of giving reliable service in more demanding
electrical environments than their predecessors. They will
not latch under any conditions within their power and voltage
ratings. They can survive up to 5V of noise spiking, of either
polarity, on the ground pin. They can accept, without either
damage or logic upset, up to half an amp of reverse current
(either polarity) forced back into their outputs.
TheMIC4123/4124/4125seriesdriversareeasiertouse,more
flexible in operation, and more forgiving than other CMOS
or bipolar drivers currently available. Their BiCMOS/DMOS
construction dissipates minimum power and provides rail-to-
rail voltage swings.
Primarily intended for driving power MOSFETs, the
MIC4123/4124/4125driversaresuitablefordrivingotherloads
(capacitive, resistive, or inductive) which require low-imped-
ance, high peak currents, and fast switching times. Heavily
loadedclocklines,coaxialcables,orpiezoelectrictransducers
are some examples. The only known limitation on loading is
that total power dissipated in the driver must be kept within
the maximum power dissipation limits of the package.
Functional Diagram
Integrated Component Count:
4 Resistors
4 Capacitors
52 Transistors
Ground Unused Inputs
INA
OUTA
INVERT ING
NONINVERTING
0.1mA
0.6mA
2kΩ
INB
OUTB
INVERT ING
NONINVERTING
0.1mA
0.6mA
2kΩ
VS
GND
Micrel, Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com


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