March 19
th
, 2010
Automotive Grade
AUIRS4426S
DUAL LOW SIDE DRIVER
Features
•
•
•
•
•
•
Gate drive supply range from 6 V to 20 V
CMOS Schmitt-triggered inputs
Matched propagation delay for both channels
Outputs out of phase with inputs
†
Automotive Qualified
Leadfree, RoHS compliant
Product Summary
Topology
V
OFFSET
V
OUT
I
o+
& I
o-
(typical)
t
ON
& t
OFF
(typical)
Dual Low Side Driver
25V
6 V – 20 V
2.3 A & 3.3 A
70 ns & 65 ns
Typical Applications
•
•
•
•
Automotive General Purpose Dual Low Side
Driver
Automotive DC-DC converters
Hybrid Power Train Drives
Direct Fuel Injection
Package
8-Lead SOIC
Typical Connection Diagram
1
NC
NC
OUTA
V
S
OUTB
8
7
6
5
TO
LOAD
2 INA
3
4
GND
INB
AUIRS4426
(Please refer to our Application Notes and Design Tips for proper circuit board layout)
* Qualification standards can be found on IR’s web site www.irf.com
© 2010 International Rectifier
AUIRS4426S
Table of Contents
Typical Connection Diagram
Description
Diagram for push-pull forward DC-DC converter application
Qualification Information
Absolute Maximum Ratings
Recommended Operating Conditions
Static Electrical Characteristics
Dynamic Electrical Characteristics
Functional Block Diagram
Input/Output Pin Equivalent Circuit Diagrams
Lead Definitions
Lead Assignments
Input/output Timing Diagram
Switching Time Waveform Definitions
Advance Configuration
Parameter Temperature Trends
Package Details
Tape and Reel Details
Part Marking Information
Ordering Information
Important Notice
Page
1
3
3
4
5
5
6
6
7
8
9
9
10
10
10
11-12
13
14
15
16
17
www.irf.com
© 2010 International Rectifier
2
AUIRS4426S
Description
The AUIRS4426 is a low voltage, high speed power MOSFET and IGBT driver. Proprietary latch immune
CMOS technologies enable ruggedized monolithic construction. The logic input is compatible with standard
CMOS or LSTTL output. The output drivers feature a high pulse current buffer stage designed for minimum
driver cross-conduction. Propagation delays between two channels are matched.
Diagram for push-pull forward DC-DC converter application
NC
INA
FROM
SWITCHING
CONTROL
CIRCUIT
AUIRS4426
NC
OUTA
TO LOAD
COM
INB
Vs
OUTB
www.irf.com
© 2010 International Rectifier
3
AUIRS4426S
Qualification Information
Qualification Level
†
Automotive
(per AEC-Q100
††
)
Comments: This family of ICs has passed an Automotive
qualification. IR’s Industrial and Consumer qualification level
is granted by extension of the higher Automotive level.
SOIC8N
MSL3
†††
260°C
(per IPC/JEDEC J-STD-020)
Class M3
(per AEC-Q100-003)
Class H3A
(per AEC-Q100-002)
Class C5
(per AEC-Q100-011)
Yes
Moisture Sensitivity Level
Machine Model
ESD
Human Body Model
Charged Device Model
RoHS Compliant
†
††
†††
Qualification standards can be found at International Rectifier’s web site
http://www.irf.com/
Exceptions to AEC-Q100 requirements are noted in the qualification report.
Higher MSL ratings may be available for the specific package types listed here. Please contact your
International Rectifier sales representative for further information.
www.irf.com
© 2010 International Rectifier
4
AUIRS4426S
Absolute Maximum Ratings
Absolute Maximum Ratings indicate sustained limits beyond which damage to the device may occur. All voltage
parameters are absolute voltages referenced to GND lead. Stresses beyond those listed under "
Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only; and
functional operation of the device at these or any other condition beyond those indicated in the “Recommended
Operating Conditions” is not implied. Exposure to absolute-maximum-rated conditions for extended periods may
affect device reliability. The thermal resistance and power dissipation ratings are measured under board mounted
and still air conditions. Ambient temperature (T
A
) is 25°C, unless otherwise specified.
.
Symbol
V
S
V
O
V
IN
P
D
Rth
JA
T
J
T
S
T
L
Fixed supply voltage
Definition
Output voltage
Logic input voltage
Package power dissipation @ TA
≤
25°C
Thermal resistance, junction to ambient
Junction temperature
Storage temperature
Lead temperature (soldering, 10 seconds)
Min.
-0.3
-0.3
- 0.3
—
—
—
-55
—
Max.
25
V
S
+ 0.3
V
S
+ 0.3
0.625
200
150
150
300
Units
V
W
°C/W
°C
Recommended Operating Conditions
The input/output logic timing diagram is shown in Figure 1. For proper operation the device should be used
within the recommended conditions. All voltage parameters are absolute voltage referenced to GND.
Symbol
V
S
V
O
V
IN
T
A
Definition
Fixed supply voltage
Output voltage
Logic input voltage
Ambient temperature
Min.
6
0
0
-40
Max.
20
V
S
V
S
125
Units
V
°C
www.irf.com
© 2010 International Rectifier
5
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