AUIPS7142G [INFINEON]
DUAL CHANNELS CURRENT SENSE HIGH SIDE SWITCH;
| 型号： | AUIPS7142G |
| 厂家： | 
Infineon |
| 描述： | DUAL CHANNELS CURRENT SENSE HIGH SIDE SWITCH |
| 文件： | 总17页 (文件大小：154K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
March, 24th 2011
Automotive grade
AUIPS7142G
DUAL CHANNELS CURRENT SENSE HIGH SIDE SWITCH
Features
Product Summary
24V battery system
Over current shutdown
Over temperature shutdown
Current sensing
Active clamp
Low quiescent current
ESD protection
Rds(on)
Vclamp
Current shutdown 20A min.
100m max.
65V
Optimized Turn On/Off for EMI
Lead free and RoHS compliant
Applications
Package
21W Filament lamp
Solenoid
24V truck loads
Description
The AUIPS7142G is a fully protected dual high side switch
specifically designed for driving lamp. It features current
sensing, over-current, over-temperature, ESD protection
and drain to source active clamp. The Ifb pin is used for
current sensing. The over-current shutdown is higher than
inrush current of the lamp.
SOIC16L-Wide Body
Typical Connection
Vcc
Out
IPS
IN
Battery
Ifb
Current feeback
10k
Input
Load
2.5k
On
Logic
Ground
Power
Ground
Off
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AUIPS7142G
†
Qualification Information
Automotive
(per AEC-Q100††)
Qualification Level
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.
MSL2, 260°C
SOIC-16L WB
Moisture Sensitivity Level
(per IPC/JEDEC J-STD-020)
Class M4 (+/-450V)
(per AEC-Q100-003)
Class H2 (+/-4000V)
Machine Model
ESD
Human Body Model
(
)
per AEC-Q100-002
Class C4 (+/-1000V)
(per AEC-Q100-011)
ClassII, Level A
(per AEC-Q100-004)
Yes
Charged Device Model
IC Latch-Up Test
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.
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AUIPS7142G
Absolute Maximum Ratings
Absolute maximum ratings indicate sustained limits beyond which damage to the device may occur. (Tj= -40°C..150°C,
Vcc=6..50V unless otherwise specified).
Symbol
Vout
Parameter
Maximum output voltage
Min. Max. Units
Vcc-60 Vcc+0.3
V
I rev
Maximum reverse pulsed current (t=100µs) see page 8
Maximum diode continuous current Tambient=25°C, Rth=40°C/W / per
channel
30
A
Isd cont.
1.7
Vcc-Vin max. Maximum Vcc voltage
-16
-50
60
10
50
V
mA
V
Iifb, max.
Vcc sc.
Maximum feedback current
Maximum Vcc voltage with short circuit protection see page 8
Maximum power dissipation (internally limited by thermal protection)
Rth=40°C/W
Pd
W
3
Tj max.
Max. storage & operating junction temperature
-40
150
°C
Thermal Characteristics
Symbol
Rth1
Parameter
Typ. Max. Units
Thermal resistance junction to ambient 6cm² footprint one Mosfet on
45
°C/W
Rth2
Thermal resistance junction to ambient 6cm² footprint two Mosfet on
40
note : Tj-Tambient=Power dissipated in the 2 channel x Rth
Recommended Operating Conditions
These values are given for a quick design.
Symbol
Iout
Parameter
Min. Max. Units
Continuous output current, Tambient=85°C, Tj=125°C
A
Rth=40°C/W, 6cm² footprint
1.5
RIfb
Ifb resistor
1.5
k
3
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AUIPS7142G
Static Electrical Characteristics
Tj=-40°C..150°C, Vcc=6-50V (unless otherwise specified)
Symbol
Vcc op.
Rds(on)
Parameter
Operating voltage
ON state resistance Tj=25°C
ON state resistance Tj=150°C(2)
Supply leakage current
Min. Typ. Max. Units Test Conditions
75
135
1
1
2
64
65
3
2.3
0.8
0.65
6
60
100
180
3
3
4
72
5
V
Ids=2A
m
Icc off
Iout off
I in on
V clamp1
V clamp2
Vih(1)
Vil(1)
Vin=Vcc / Vifb=Vgnd
Vout=Vgnd, Tj=25°C
Vcc-Vin=28V, Tj=25°C
Id=10mA
Id=6A see fig. 2
Id=10mA
µA
Output leakage current
Input current while on
0.6
60
60
1.5
mA
Vcc to Vout clamp voltage 1
Vcc to Vout clamp voltage 2
High level Input threshold voltage
Low level Input threshold voltage
Forward body diode voltage Tj=25°C
Forward body diode voltage Tj=125°C
V
Vf
0.9
0.75
If=1A
(1) Input thresholds are measured directly between the input pin and Vcc.
Switching Electrical Characteristics
Vcc=28V, Resistive load=27, Tj=-40°C..150°C
Symbol
Tdon
Tr
Tdoff
Tf
Parameter
Min. Typ. Max. Units Test Conditions
Turn on delay time to 20%
Rise time from 20% to 80% of Vcc
Turn off delay time
4
2
20
2.5
10
5
40
5
20
10
80
10
µs
See fig. 1
µs
Fall time from 80% to 20% of Vcc
Protection Characteristics
Tj=-40°C..150°C, Vcc=6-50V (unless otherwise specified)
Symbol
Tsd
Isd
Parameter
Min. Typ. Max. Units
Test Conditions
See fig. 3 and fig.11
See fig. 3 and page 7
See fig. 3
37
5
Over temperature threshold
Over-current shutdown
Ifb after an over-current or an over-
temperature (latched)
150(2) 165
°C
A
20
25
3
I fault
2.2
mA
Current Sensing Characteristics
Tj=-40°C..150°C, Vcc=6-50V (unless otherwise specified). Specified 500µs after the turn on. Vcc-Vifb>4V
Symbol
Ratio
Parameter
I load / Ifb current ratio
Min. Typ. Max. Units
Test Conditions
Iload<4A
2000 2400
2800
Ratio_TC
I offset
Ifb leakage
I load / Ifb variation over temperature(2)
Load current offset
Ifb leakage current On in open load
-5%
-0.02
0
0
0
1
+5
0.02
10
%
A
µA
Tj=-40°C to +150°C
Iout<4A
Iout=0A, Vcc-Vin=28V
(2) Guaranteed by design
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AUIPS7142G
Lead Assignments
16
9
1-2- Vcc
3- In1
4- Ifb1
5- In2
6- Ifb2
7-8-9-Vcc
10-11-12- Out2
13-14-15- Out1
16- Vcc
1
8
SO16W
Functional Block Diagram
All values are typical
VCC
Charge
Pump
3V
60V
2mA
75V
75V
+
-
Driver
75V
Reset
LatchQ
Set
Iout > 25A
Tj > 165°C
Diag
-
+
IN
IFB OUT
5
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AUIPS7142G
Truth Table
Op. Conditions
Normal mode
Normal mode
Open load
Input
H
L
H
L
H
L
H
L
Output
Ifb pin voltage
L
H
L
H
L
L
L
L
0V
I load x Rfb / Ratio
0V
0V
0V
Open load
Short circuit to GND
Short circuit to GND
Over temperature
Over temperature
V fault (latched)
0V
V fault (latched)
Operating voltage
Maximum Vcc voltage : this is the maximum voltage before the breakdown of the IC process.
Operating voltage : This is the Vcc range in which the functionality of the part is guaranteed. The AEC-Q100 qualification
is run at the maximum operating voltage specified in the datasheet.
Reverse battery
During the reverse battery the Mosfet is kept off and the load current is flowing into the body diode of the power Mosfet.
Power dissipation in the IPS : P = I load * Vf
There is no protection, so Tj must be lower than 150°C in the worst case condition of current and ambient temperature.
If the power dissipation is too high in Rifb, a diode in serial can be added to block the current.
The transistor used to pull-down the input should be a bipolar in order to block the reverse current. The 100ohm input
resistor can not sustain continuously 16V (see Vcc-Vin max. in the Absolute Maximum Ratings section)
Active clamp
The purpose of the active clamp is to limit the voltage across the MOSFET to a value below the body diode break down
voltage to reduce the amount of stress on the device during switching.
The temperature increase during active clamp can be estimated as follows:
Tj PCL ZTH(tCLAMP
)
Where:
is the thermal impedance at tCLAMP and can be read from the thermal impedance curves given in the
)
ZTH(tCLAMP
data sheets.
: Power dissipation during active clamp
PCL VCL ICLavg
: Typical VCLAMP value.
VCL 65V
ICL
: Average current during active clamp
: Active clamp duration
ICLavg
2
ICL
tCL
di
dt
VBattery VCL
di
dt
: Demagnetization current
L
Figure 9 gives the maximum inductance versus the load current in the worst case : the part switch off after an over
temperature detection. If the load inductance exceed the curve, a free wheeling diode is required.
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AUIPS7142G
Over-current protection
The threshold of the over-current protection is set in order to guaranteed that the device is able to turn on a load with an
inrush current lower than the minimum of Isd. Nevertheless for high current and high temperature the device may switch
off for a lower current due to the over-temperature protection. This behavior is shown in Figure 11.
Current sensing accuracy
Ifb
Ifb2
Ifb1
Ifb leakage
I offset
Iout1
Iout2
Iout
The current sensing is specified by measuring 3 points :
- Ifb1 for Iout1
- Ifb2 for Iout2
- Ifb leakage for Iout=0
The parameters in the datasheet are computed with the following formula :
Ratio = ( Iout2 – Iout1 )/( Ifb2 – Ifb1)
I offset = Ifb1 x Ratio – Iout1
This allows the designer to evaluate the Ifb for any Iout value using :
Ifb = ( Iout + I offset ) / Ratio if Ifb > Ifb leakage
For some applications, a calibration is required. In that case, the accuracy of the system will depends on the variation of
the I offset and the ratio over the temperature range. The ratio variation is given by Ratio_TC specified in page 4.
The Ioffset variation depends directly on the Rdson :
I offset@-40°C= I offset@25°C / 0.8
I offset@150°C= I offset@25°C / 1.9
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AUIPS7142G
Maximum Vcc voltage with short circuit protection
The maximum Vcc voltage with short circuit is the maximum voltage for which the part is able to protect itself under test
conditions representative of the application. 2 kind of short circuits are considered : terminal and load short circuit.
L supply
5µH
R supply
10mohm
Vcc
Out
IPS
L SC
R SC
Terminal SC
Load SC
0.1 µH
10 µH
10 mohm
100 mohm
L SC
R SC
Maximum current during reverse circulation
In case of short circuit to battery, a voltage drop of the Vcc may create a current which circulate in reverse mode. When
the device is on, this reverse circulation current will not trigger the internal fault latch. This immunization is also true when
the part turns on while a reverse current flows into the device. The maximum current (I rev) is specified in the maximum
rating section.
8
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AUIPS7142G
T clamp
Vcc-Vin
Ids
80%
Vcc-Vin
20%
80%
Vcc
Vout
20%
Td on
Td off
Vds
Vds clamp
Tr
Tf
See Application Notes to evaluate power dissipation
Figure 2 – Active clamp waveforms
Figure 1 – IN rise time & switching definitions
10
8
Vin
Ids
I shutdown
6
4
Tj
Tsd
Tshutdown
2
165°C
V fault
Vifb
0
-50
0
50
100
150
Tj, junction temperature (°C)
Figure 3 – Protection timing diagram
Figure 4 – Icc off (µA) Vs Tj (°C)
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AUIPS7142G
20
15
10
5
4
3
2
1
0
VIH
VIL
0
-50
-25
0
25
50
75
100 125 150
0
10
20
30
40
50
Vcc-Vout, supply voltage (V)
Tj, junction temperature (°C)
Figure 5 – Icc off (µA) Vs Vcc-Vout (V)
Figure 6 – Vih and Vil (V) Vs Tj (°C)
200%
150%
100%
50%
100.00
10.00
1.00
Zth1channel
0.10
Zth 2 channels
0.01
-50
0
50
100
150
1.E-05 1.E-04 1.E-03 1.E-02 1.E-01 1.E+00 1.E+01 1.E+02
Tj, junction temperature (°C)
Time (s)
Figure 8 – Transient thermal impedance (°C/W)
Vs time (s)
Figure 7 - Normalized Rds(on) (%) Vs Tj (°C)
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AUIPS7142G
100
10
1
6.0
5.0
4.0
3.0
2.0
1. 0
-40°C
25°C
150°C
0.0
1.E+01
1.E+02
1.E+03
1.E+04
1.E+05
0
2
4
6
8
10
12
14
Inductance (µH)
Iout, output current (A)
Figure 9 – Max. Iout (A) Vs inductance (µH)
Figure 10 – Ifb (mA) Vs Iout (A)
100
10
1
0.1
0.01
'-40°C/2ch
'25°C/2ch
0.001
'125°C/2ch
0.0001
0
5
10
15
20
Iout, output current per channel(A)
Figure 11 – Tsd (s) Vs I out (A)
2 channels on
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AUIPS7142G
Case Outline SOIC16W
12
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AUIPS7142G
Tape and Reel – SOIC16W
13
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AUIPS7142G
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AUIPS7142G
Part Marking Information
Ordering Information
Standard Pack
Form
Base Part Number
Package Type
Complete Part Number
Quantity
45
Tube
Tape and reel
AUIPS7142G
AUIPS7142G
SO28W
1500
AUIPS7142GTR
15
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AUIPS7142G
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.
IR products are neither designed nor intended for use in military/aerospace applications or environments unless the IR
products are specifically designated by IR as military-grade or “enhanced plastic.” Only products designated by IR as
military-grade meet military specifications. Buyers acknowledge and agree that any such use of IR products which IR has
not designated as military-grade is solely at the Buyer’s 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 Sepulbeda Blvd., El Segundo, California 90245
Tel: (310) 252-7105
16
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AUIPS7142G
Revision History
Revision
A3
A4
A5
A6
Date
Notes/Changes
April, 29th 2010
March, 17th 2011
March,18th 2011
March, 24th 2011
Add tri-temp limits
Au release
Update lead free and RoHS 1st page
Add Tape and reel information
17
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