AUIPS7125RTRL [INFINEON]
CURRENT SENSE HIGH SIDE SWITCH; 电流检测高压侧开关
| 型号： | AUIPS7125RTRL |
| 厂家： | 
Infineon |
| 描述： | CURRENT SENSE HIGH SIDE SWITCH |
| 文件： | 总16页 (文件大小：297K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
June, 6th 2011
Automotive grade
AUIPS7125R
CURRENT SENSE HIGH SIDE SWITCH
Features
Product Summary
Suitable for 24V systems
Over current shutdown
Over temperature shutdown
Current sensing
Rds(on)
Vclamp
Current shutdown 50A min.
30m max.
65V
Active clamp
Reverse circulation immunization
Optimized Turn On/Off for EMI
Reverse battery protection (Mosfet on)
Applications
75W Filament lamp
Solenoid
24V loads for trucks
Packages
Description
The AUIPS7125R is a fully protected five terminal high
side switch specifically designed for driving lamp. It
features current sensing, over-current, over-temperature,
ESD protection and drain to source active clamp. When
the input voltage Vcc - Vin is higher than the specified
threshold, the output power Mosfet is turned on. When the
Vcc - Vin is lower than the specified Vil threshold, the
output Mosfet is turned off. The Ifb pin is used for current
sensing. The over-current shutdown is higher than inrush
current of the lamp.
DPak
Typical Connection
Vcc
AUIPS7125R
IN
Battery
Ifb
Out
Current feeback
10k
Input
Load
Rifb
On
Logic
Ground
Power
Ground
Off
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AUIPS7125R
†
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.
MSL1, 260°C
DPAK-5L
Moisture Sensitivity Level
(per IPC/JEDEC J-STD-020)
Class M2 (200 V)
(per AEC-Q100-003)
Class H1C (1500 V)
Machine Model
ESD
Human Body Model
(
)
per AEC-Q100-002
Class C5 (1000 V)
Charged Device Model
(per AEC-Q100-011)
Class II, Level A
(per AEC-Q100-004)
Yes
IC Latch-Up Test
RoHS Compliant
†
††
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.
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AUIPS7125R
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
Isd cont.
Maximum reverse pulsed current (t=100µs) see page 8
Maximum diode continuous current Tambient=25°C, Rth=70°C/W
-32
-50
60
2.5
60
10
50
A
Vcc-Vin max. Maximum Vcc voltage
Iifb, max.
Vcc sc
V
mA
V
Maximum feedback current
Maximum Vcc voltage with short circuit protection see page 8
Maximum power dissipation (internally limited by thermal protection)
Rth=50°C/W DPack 6cm² footprint
Pd
W
2.5
Tj max.
Max. storage & operating junction temperature
-40
150
°C
Thermal Characteristics
Symbol
Rth1
Parameter
Typ. Max. Units
Thermal resistance junction to ambient DPak Std footprint
Thermal resistance junction to ambient Dpak 6cm² footprint
Thermal resistance junction to case Dpak
70
50
2
°C/W
Rth2
Rth3
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=50°C/W, Dpak 6cm² footprint
3.8
Rifb
Ifb resistor
1.5
k
3
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AUIPS7125R
Static Electrical Characteristics
Tj=-40°C..150°C, Vcc=6-50V (unless otherwise specified)
Symbol
Vcc op.
Rds(on)
Parameter
Operating voltage range
ON state resistance Tj=25°C
ON state resistance Tj=150°C(2)
Supply leakage current
Min. Typ. Max. Units Test Conditions
6
60
30
55
4
V
24
45
2
2
Ids=2A
m
Icc off
Iout off
Iin on
V clamp1
V clamp2
Vih(1)
Vin=Vcc=28V,Vifb=Vgnd
Vout=Vgnd, Tj=25°C
Vcc-Vin=28V, Tj=25°C
Id=10mA
Id=20A see fig. 2
Id=10mA
µA
Output leakage current
4
Input current when device on
Vcc to Vout clamp voltage 1
Vcc to Vout clamp voltage 2
High level Input threshold voltage
Low level Input threshold voltage
1
3.5
64
65
3.5
3.2
25
0.75
0.62
250
6
mA
60
60
1.5
180
72
5.9
40
0.85
0.7
350
V
Vil(1)
Rds(on) rev Reverse On state resistance Tj=25°C
Vf
Isd=2A
If=3A
m
V
Forward body diode voltage Tj=25°C
Forward body diode voltage Tj=125°C
Input resistor
Rin
(1) Input thresholds are measured directly between the input pin and the tab.
Switching Electrical Characteristics
Vcc=28V, Resistive load=6.8, Tj=-40°C..150°C
Symbol
tdon
tr
tdoff
tf
Parameter
Turn on delay time
Rise time from 20% to 80% of Vcc
Turn off delay time
Fall time from 80% to 20% of Vcc
Min. Typ. Max. Units Test Conditions
5
5
35
6
15
10
75
15
30
30
120
30
µs
See fig. 1
µs
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
85
5
Over temperature threshold(2)
Over-current shutdown
Ifb after an over-current or an over-
temperature (latched)
150
50
2.2
165
60
3
°C
A
I fault
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
Ratio_TC
I offset
Parameter
Min. Typ. Max. Units
Test Conditions
Iload<14A
Tj=-40°C to +150°C
Iout<14A
I load / Ifb current ratio
I load / Ifb variation over temperature(2)
Load current offset
7050 8500
9950
-5%
-0.06
0
0
0
1
+5
0.06
10
%
A
µA
Ifb leakage
Ifb leakage current
Iout=0A
(2) Guaranteed by design
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AUIPS7125R
Lead Assignments
3- Vcc
1- NC
2- In
3- Vcc
4- Ifb
5- Out
1 2 4 5
DPak
Functional Block Diagram
All values are typical
VCC
Charge
Pump
3V
60V
3.5mA
75V
75V
+
-
Driver
75V
Reset
LatchQ
Set
Reverse
Battery
Protection
Iout > 60A
Tj > 165°C
Diag
-
+
IN
IFB OUT
5
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AUIPS7125R
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
Ifb leakage x Rifb
0V
I fault x Rifb(latched)
0V
I fault x Rifb (latched)
Open load
Short circuit to GND
Short circuit to GND
Over temperature
Over temperature
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 turned on if the input pin is powered with a diode in parallel of the input transistor.
Power dissipation in the IPS : P = Rdson rev * I load² + Vcc² / 250 ( internal input resistor ).
If the power dissipation is too high in Rifb, a diode in serial can be added to block the current.
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 switches off after an over
temperature detection. If the load inductance exceeds the curve, a free wheeling diode is required.
Over-current protection
The threshold of the over-current protection is set in order to guarantee 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.
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AUIPS7125R
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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AUIPS7125R
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
L SC
0.1 µH
10 µH
R SC
10 mohm
100 mohm
IPS
Terminal SC
Load SC
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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AUIPS7125R
T clamp
80%
Vcc-Vin
Ids
Vcc-Vin
20%
80%
Vcc
Vout
20%
Td on
Td off
Tr
Tf
Vds
Vds clamp
See Application Notes to evaluate power dissipation
Figure 2 – Active clamp waveforms
Figure 1 – IN rise time & switching definitions
25
20
15
10
5
Vin
Ids
I shutdown
Tj
Tsd
165°C
Tshutdown
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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AUIPS7125R
4
2
0
6
5
4
3
2
1
0
VIH
VIL
-50
-25
0
25
50
75
100 125 150
0
10
20
30
40
50
Vcc-Vin, supply voltage (V)
Tj, junction temperature (°C)
Figure 5 – Icc off(µA) Vs Vcc-Vin (V)
Figure 6 – Vih and Vil (V) Vs Tj (°C)
100.00
10.00
1.00
200%
150%
100%
50%
0.10
0.01
-50
0
50
100
150
1.E-5 1.E-4 1.E-3 1.E-2 1.E-1 1.E+0 1.E+1 1.E+2
Tj, junction temperature (°C)
Time (s)
Figure 7 - Normalized Rds(on) (%) Vs Tj (°C)
Figure 8 – Transient thermal impedance (°C/W)
Vs time (s)
10
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AUIPS7125R
6.0
5.0
4.0
3.0
2.0
1. 0
100
10
1
-40°C
25°C
150°C
0.0
1.E+01
1.E+02
1.E+03
1.E+04
0
10
20
30
40
50
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
'+25°C
0.001
'+125°C
0.0001
0
10
20
30
40
50
Iout, output current (A)
Figure 11 – Tsd (s) Vs I out (A)
SMD with 6cm²
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AUIPS7125R
Case Outline 5 Lead – DPAK
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AUIPS7125R
Tape & Reel 5 Lead – DPAK
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AUIPS7125R
Part Marking Information
Ordering Information
Standard Pack
Form
Base Part Number
Package Type
Complete Part Number
Quantity
75
Tube
AUIPS7125R
AUIPS7125RTR
AUIPS7125RTRL
AUIPS7125RTRR
Tape and reel
2000
3000
3000
AUIPS7125R
D-Pak-5-Lead
Tape and reel left
Tape and reel right
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AUIPS7125R
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 Sepulbeda Blvd., El Segundo, California 90245
Tel: (310) 252-7105
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AUIPS7125R
Revision History
Revision
Date
Notes/Changes
A1
A2
A3
A4
A5
08/03/2010
29/04/2010
07/09/2010
31/05/2011
06/06/2011
Correct packing information
Update current sensing capability
Final release
Update IR address
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