* Qualification standards can be found on IR’s web site www.irf.com © 2010 International Rectifier
June 30th, 2011
Automotive Grade
AUIRS44261S
DUAL LOW SIDE DRIVER
Features
Gate drive supply range from 4.8 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
Typical Applications
Automotive General Purpose Dual Low Side
Driver
Automotive DC-DC converters
Hybrid Power Train Drives
Direct Fuel Injection
Product Summary
Topology Dual Low Side Driver
VOUT 4.8 V – 20 V
Io+ & I o- (typical) 2.3 A & 3.3 A
tON & tOFF (typical) 70 ns & 65 ns
Package
8-Lead SOIC
Typical Connection Diagram
(Please refer to our Application Notes and Design Tips for proper circuit board layout)
AUIRS44261S
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2
Table of Contents Page
Typical Connection Diagram 1
Description 3
Diagram for push-pull forward DC-DC converter application 3
Qualification Information 4
Absolute Maximum Ratings 5
Recommended Operating Conditions 5
Static Electrical Characteristics 6-7
Dynamic Electrical Characteristics 6-7
Functional Block Diagram 8
Input/Output Pin Equivalent Circuit Diagrams 9
Lead Definitions 10
Lead Assignments 10
Input/output Timing Diagram 11
Switching Time Waveform Definitions 11
Advance Configuration 11
Parameter Temperature Trends 12-15
Package Details 16
Tape and Reel Details 17
Part Marking Information 18
Ordering Information 19
Important Notice 20
AUIRS44261S
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3
Description
The AUIRS44261 is a low voltage, high speed power MOSFET and IGBT driver. Proprietary latch immune
CMOS technologies enable ruggedized monolithic construction. The logic inputs thresholds are proportional
to Vs supply voltage.. 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
FROM
SWITCHING
CONTROL
CIRCUIT
AUIRS44261
NC NC
INB
COM
INA
OUTB
Vs
OUTA
TO LOAD
AUIRS44261S
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4
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.
Moisture Sensitivity Level SOIC8N MSL3††† 260°C
(per IPC/JEDEC J-STD-020)
ESD
Machine Model Class M2 (+/-200V)
(per AEC-Q100-003)
Human Body Model Class H2 (+/-4000V)
(per AEC-Q100-002)
Charged Device Model Class C4 (+/-1000V)
(per AEC-Q100-011)
IC Latch-Up Test Class II Level B
††††
(per AEC-Q100-004)
RoHS Compliant Yes
Qualification standards can be found at International Rectifier’s web site http://www.irf.com/
†† Exceptions (if any) 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.
†††† INA and INB stressed to +/-40mA
AUIRS44261S
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5
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 (TA) is 25°C, unless otherwise specified.
.
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 Definition Min. Max. Units
VS Fixed supply voltage -0.3 25
V
VO Output voltage -0.3 VS + 0.3
VIN Logic input voltage - 0.3 VS + 0.3
PD Package power dissipation @ TA 25°C 0.625 W
RthJA Thermal resistance, junction to ambient 200 °C/W
TJ Junction temperature — 150
°C
TS Storage temperature -55 150
TL Lead temperature (soldering, 10 seconds) — 300
Symbol Definition Min. Max. Units
VS Fixed supply voltage 4.8 20
V
VO Output voltage 0 VS
VIN Logic input voltage 0 VS
TA Ambient temperature -40 125 °C
AUIRS44261S
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6
Static Electrical Characteristics
Unless otherwise noted, these specifications apply for an operating junction temperature range of -40°C Tj 125°C
with bias conditions of VBIAS (VS) = 15 V. The VIN and IIN parameters are referenced to GND and are applicable to
input leads: INA and INB. The VO and IO parameters are referenced to GND and are applicable to the output leads:
OUTA and OUTB.
(†) Guaranteed by design
Dynamic Electrical Characteristics
Unless otherwise noted, these specifications apply for an operating junction temperature range of -40°C Tj 125°C
with bias conditions of VBIAS (VS) = 15 V, CL = 1000pF. The dynamic electrical characteristics are measured using the
test circuit shown in Fig. 3.
Symbol Definition Min Typ Max Units Test Conditions
VIH Logic “0” input voltage 0.5 *VS +
0.3V — —
V
4.8V<Vs<20V
VIL Logic “1” input voltage 0.15 * VS+
0.08V
VOH High level output voltage, VBIAS -
VO — — 1.4
IO = 0 mA
VOL Low level output voltage, VO0.1
IIN+ Logic “1” input bias current (OUT
= HI) — 15 25
µA
VIN = 0 V
IIN- Logic “0” input bias current (OUT
= LO) — 0 1 VIN = VS
IQB Quiescent VS supply current 70 220 VIN = 0 V or VS
IO+ Output high short circuit pulsed
current(†) 1.5 2.3
A
VO = 0 V, VIN = 0
PW 10 µs
IO- Output high short circuit pulsed
current(†) 1.5 3.3
VO = 15 V, VIN = VS
PW 10 µs
Symbol Definition Min Typ Max Units Test Conditions
Propagation delay characteristics
ns Figure 2
td1 Turn-on propagation delay 70 150
td2 Turn-off propagation delay 65 150
tr Turn-on rise time 15 35
tf Turn-off fall time 25 50
AUIRS44261S
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Static Electrical Characteristics Vs=4.8V
Unless otherwise noted, these specifications apply for an operating junction temperature range of -40°C Tj 125°C
with bias conditions of VBIAS (VS) = 4.8 V. The VIN and IIN parameters are referenced to GND and are applicable to
input leads: INA and INB. The VO and IO parameters are referenced to GND and are applicable to the output leads:
OUTA and OUTB.
(†) Guaranteed by design
Dynamic Electrical Characteristics Vs=4.8V
Unless otherwise noted, these specifications apply for an operating junction temperature range of -40°C Tj 125°C
with bias conditions of VBIAS (VS) = 4.8 V, CL = 1000pF. The dynamic electrical characteristics are measured using
the test circuit shown in Fig. 3.
(note 1) from 50% input to 25% output
(note2) from 50% input to 75% output
(note3) from 10% to 65%
Symbol Definition Min Typ Max Units Test Conditions
VIH Logic “0” input voltage 2.7 V
VIL Logic “1” input voltage 0.8 V
VOH25 High level output voltage, VBIAS -VO1.6 V IO = 2 mA, Tj = 25°C
VOH-40 High level output voltage, VBIAS -VO2.2 V
IO = 2 mA, Tj=-40°C
VOH125 High level output voltage, VBIAS -VO1.6 V
IO = 2 mA, Tj=125°C
VOL Low level output voltage, VO0.1 V
IO = 2 mA
IIN+ Logic “1” input bias current (OUT = HI) 5 10
µA
VIN = 0 V
IIN- Logic “0” input bias current (OUT = LO) 0 1 VIN = VS
IQB Quiescent VS supply current 25 45 VIN = 0 V or VS
IO+ Output high short circuit pulsed current(†) 430 640
mA
VO = 0 V, VIN = 0
PW 10 µs
IO- Output high short circuit pulsed current(†) 530 850
VO = 4.8 V, VIN = VS
PW 10 µs
Symbol Definition Min Typ Max Units Test Conditions
Propagation delay characteristics
ns Figure 2
td1 Turn-on propagation delay (note 1) 130 220
td2 Turn-off propagation delay ( note 2) 150 250
tr Turn-on rise time ( note 3) 40 75
tf Turn-off fall time ( note 4) 50 75
AUIRS44261S
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8
(note4) from 65% to 10%
Functional Block Diagram: AUIRS44261
VS
OUTA
PREDRV
OUTB
GND
INA
INB PREDRV
DRV
DRV
VS
VS
VS
AUIRS44261S
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Input/Output Pin Equivalent Circuit Diagrams:
Vs
COM
INA
INB
ESD
Diode
ESD
Diode
RESD
RPU
AUIRS44261S
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Lead Definitions
Symbol Description
VS Supply voltage
GND Ground
INA Logic input for gate driver output (OUTA), out of phase
INB Logic input for gate driver output (OUTB), out of phase
OUTA Gate drive output A
OUTB Gate drive output B
Lead Assignments
8
7
6
5
INA
1
2
3
4
VS
OUTA
OUTB
GND
INB
8 Lead SOIC
AUIRS4426S
AUIRS44261S
AUIRS44261S
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11
Application Information and Additional Details
Figure 1: Input/output Timing Diagram
INA
INB
tr
OUTA
tf
td1
OUTB
td2
Figure 2: Switching Time Waveform Definitions
2
4
7
3
5
6
INA
INB
OUTA
OUTB
VS= 15 V
4.7µF
1000 F
0.1 µF
CL
CL1000 F
Figure 3: Advance Configuration
AUIRS44261S
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Parameter Trends vs. Temperature
Figures illustrated in this chapter provide information on the experimental performance of the AUIRS44261S HVIC.
The line plotted in each figure is generated from actual lab data. A large number of individual samples were tested at
three temperatures (-40 ºC, 25 ºC, and 125 ºC) with supply voltage of 15V in order to generate the experimental
curve. The line consists of three data points (one data point at each of the tested temperatures) that have been
connected together to illustrate the understood trend. The individual data points on the Typ. curve were determined
by calculating the averaged experimental value of the parameter (for a given temperature).
Vs = 4.8V
Figure 4. Turn-On Propagation Delay vs. Temperature
Vs = 4.8V
Figure 5. Turn-Off Propagation Delay vs. Temperature
Vs = 15V
Figure 6. Turn-On Propagation Delay vs. Temperature
Vs = 15V
Figure 7. Turn-Off Propagation Delay vs. Temperature
AUIRS44261S
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Vs = 4.8V
Figure 8. Turn-On Rise Time vs. Temperature
Vs = 4.8V
Figure 9. Turn-Off Fall Time vs. Temperature
Vs = 15V
Figure 10. Turn-On Rise Time vs. Temperature
Vs = 15V
Figure 11. Turn-Off Fall Time vs. Temperature
Vs = 4.8V, Io = 2mA
Figure 12. High Level Output Voltage vs. Temperature
Vs = 4.8V, Io = 2mA
Figure 13. Low Level Output Voltage vs. Temperature
AUIRS44261S
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Vs = 15V, Io = 0mA
Figure 14. High Level Output Voltage vs. Temperature
Vs = 15V, Io = 0mA
Figure 15. Low Level Output Voltage vs. Temperature
Vs = 4.8V
Figure 16. Logic “1” Input Bias Current vs. Temperature
Vs = 4.8V
Figure 17. Logic “0” Input Bias Current vs. Temperature
Vs = 15V
Figure 18. Logic “1” Input Bias Current vs. Temperature
Vs = 15V
Figure 19. Logic “0” Input Bias Current vs. Temperature
AUIRS44261S
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Vs = 4.8V
Figure 20. Quiescent VS Supply Current vs.
Temperature
Vs = 15V
Figure 21. Quiescent VS Supply Current vs.
Temperature
AUIRS44261S
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Package Details: SOIC8
AUIRS44261S
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17
Tape and Reel Details: SOIC8
CARRIER TAPE DIMENSION FOR 8SOICN
Code Min Max Min Max
A 7.90 8.10 0.311 0.318
B 3.90 4.10 0.153 0.161
C 11.70 12.30 0.46 0.484
D 5.45 5.55 0.214 0.218
E 6.30 6.50 0.248 0.255
F 5.10 5.30 0.200 0.208
G 1.50 n/a 0.059 n/a
H 1.50 1.60 0.059 0.062
REEL DIMENSIONS FOR 8SOICN
Code Min Max Min Max
A 329.60 330.25 12.976 13.001
B 20.95 21.45 0.824 0.844
C 12.80 13.20 0.503 0.519
D 1.95 2.45 0.767 0.096
E 98.00 102.00 3.858 4.015
F n/a 18.40 n/a 0.724
G 14.50 17.10 0.570 0.673
H 12.40 14.40 0.488 0.566
Metric Imperial
Metric Imperial
E
F
A
C
D
G
A
B
H
N
OTE : CONTROLLIN G
DIMENSION IN MM
LOADED TAPE FEED DIRECTION
A
H
F
E
G
D
B
C
AUIRS44261S
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Part Marking Information
AS44261
IR logo
AYWW ?
Part number
Date code
Pin 1
Identifier Lot Code
(Prod mode –
4 digit SPN code)
Assembly site code
Per SCOP 200-002
? XXXX
MARKING CODE
Lead Free Released
Non-Lead Free Released
?
P
AUIRS44261S
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Ordering Information
Base Part Number Package Type Standard Pack Complete Part Number
Form Quantity
AUIRS44261
SOIC8
Tube/Bulk 95 AUIRS44261S
Tape and Reel 2500 AUIRS44261STR
AUIRS44261S
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IMPORTANT NOTICE
Unless specifically designated for the automotive market, International Rectifier Corporation and its subsidiaries
(IR) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to
its products and services at any time and to discontinue any product or services without notice. Part numbers
designated with the “AU” prefix follow automotive industry and / or customer specific requirements with regards
to product discontinuance and process change notification. All products are sold subject to IR’s terms and
conditions of sale supplied at the time of order acknowledgment.
IR warrants performance of its hardware products to the specifications applicable at the time of sale in
accordance with IR’s standard warranty. Testing and other quality control techniques are used to the extent IR
deems necessary to support this warranty. Except where mandated by government requirements, testing of all
parameters of each product is not necessarily performed.
IR assumes no liability for applications assistance or customer product design. Customers are responsible for
their products and applications using IR components. To minimize the risks with customer products and
applications, customers should provide adequate design and operating safeguards.
Reproduction of IR information in IR data books or data sheets is permissible only if reproduction is without
alteration and is accompanied by all associated warranties, conditions, limitations, and notices. Reproduction
of this information with alterations is an unfair and deceptive business practice. IR is not responsible or liable
for such altered documentation. Information of third parties may be subject to additional restrictions.
Resale of IR products or serviced with statements different from or beyond the parameters stated by IR for that
product or service voids all express and any implied warranties for the associated IR product or service and is
an unfair and deceptive business practice. IR is not responsible or liable for any such statements.
IR products are not designed, intended, or authorized for use as components in systems intended for surgical
implant into the body, or in other applications intended to support or sustain life, or in any other application in
which the failure of the IR product could create a situation where personal injury or death may occur. Should
Buyer purchase or use IR products for any such unintended or unauthorized application, Buyer shall indemnify
and hold International Rectifier and its officers, employees, subsidiaries, affiliates, and distributors harmless
against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or
indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if
such claim alleges that IR was negligent regarding the design or manufacture of the product.
Only products certified as military grade by the Defense Logistics Agency (DLA) of the US Department of
Defense, are designed and manufactured to meet DLA military specifications required by certain military,
aerospace or other applications. Buyers acknowledge and agree that any use of IR products not certified by
DLA as military-grade, in applications requiring military grade products, is solely at the Buyer’s own risk and
that they are solely responsible for compliance with all legal and regulatory requirements in connection with
such use.
IR products are neither designed nor intended for use in automotive applications or environments unless the
specific IR products are designated by IR as compliant with ISO/TS 16949 requirements and bear a part
number including the designation “AU”. Buyers acknowledge and agree that, if they use any non-designated
products in automotive applications, IR will not be responsible for any failure to meet such requirements.
For technical support, please contact IR’s Technical Assistance Center
http://www.irf.com/technical-info/
WORLD HEADQUARTERS:
101 N. Sepulveda Blvd., El Segundo, California 90245
Tel: (310) 252-7105
AUIRS44261S
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Revision History
Date Comment
04/29/08 Draft
03/13/09 Front page Typ Application and diagram.
07/07/09 Removed PDIP8 and AUIRS4427, AUIRS4428
09/30/09 Reformatted entire data sheet, added part marking
01/06/09 Updated Td1 typ.=70ns & max=150ns; tf typ.=25ns & max= 50ns; VOH max.=1.4V; added
note on IO+/- as guaranteed by design, added Input/Output Pin Equivalent Circuit Diagrams,
added Important Notice, added ESD level in Qual Info Page, modified disclaimer under
Absolute Max. Ratings; modified conditions under Dynamic Elec. Char.;
01/12/2010 Added parameter vs. temperature graphs; removed Preliminary; removed Latch Up rating in
qualification info page
01/13/2010 Added passing voltage level for ESD on Qual Info Page.
01/31/2010 Removed passing voltage level for ESD on Qual Info Page.
03/12/2010 Front page: dded unit (A) to IO+ & (ns) for ton; add “direct fuel injection” to application list.
Page3: changed from Vcc to Vs in diagram, removed “cross-conduction” from description
statement. Updated Parameter Trends vs temp statement with “supply voltage of 15V”.
03/15/2010 Page 8: changed from Vcc to Vs in schematics; put back “driver cross-conduction” in
description statement.
03/19/2010 Corrected Tf spec. typ=15nS, max=50nS.
07/30/2010 Part number changed to 44261; Min Vs=4.8V; Input thresholds spec changed into values
proportional to Vs; Iqbmax consumption increased from 200uA to 220uA ; IIN+ increased to
15Vtyp and 25Vmax; IIN- changed to 0uAtyp, 1uAmax; input pullup resistor connected to Vs.
10/21/2010 Test condition corrected for Io- (Vo=4.8V instead of 15V) and for VOH and VOL (I=2mA
instead of 20mA).
11/18/2010 AUIR4426 name corrected in AUIR44261 page2 and header
01/17/2011 Table with Vs=4.8V: VOH max limit changed to 1.9V; Tr to 65ns and td2 to 220ns
02/22/2011 Removed tri-temp graphs
03/02/2011 Inserted tri-temp graphs, based on 3 sigma and Vs = 4.8V & 15V
03/04/2011 Added “Preliminary Data Sheet” in front page titles.
5/17/2011 Updated tri-temp graphs, important notice. Change Iqs_15V typ. To 70; Voh(4.8) max to 2.2;
Tr, Tf (4.8) max to 75; Ton(4.8) max to 220; Toff(4.8) max to 250.
5/30/2011 VIH and VIL parameter exchange; VOH specified at cold and at hot.
6/30/11 Updated part marking & world headquarters address