February, 10 2012
th
Automotive grade
AUIPS7145R
CURRENT SENSE HIGH SIDE SWITCH
Features
Suitable for 24V systems
Over current shutdown
Over temperature shutdown
Current sensing
Active clamp
Reverse circulation immunization
Low current
ESD protection
Optimized Turn On/Off for EMI
Product Summary
Rds(on)
100m max.
Vclamp
65V
Current shutdown 20A min.
Applications
21W Filament lamp
Solenoid
24V loads for trucks
Packages
Description
The AUIPS7145R is a fully protected four 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. The Ifb
pin is used for current sensing. The over-current shutdown
is higher than inrush current of the lamp.
DPak
Typical Connection
Vcc
IN
Ifb
Current feeback
Input
On
Off
IPS
Battery
Out
10k
2.5k
Logic
Ground
Power
Ground
Load
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1
AUIPS7145R
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.
MSL1, 260°C
(per IPC/JEDEC J-STD-020)
Class M2 (200 V)
(per AEC-Q100-003)
Class H1C (1500 V)
(per AEC-Q100-002)
Class C5 (1000 V)
(per AEC-Q100-011)
Class II, Level A
(per AEC-Q100-004)
Yes
Moisture Sensitivity Level
DPAK-5L
Machine Model
ESD
Human Body Model
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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2
AUIPS7145R
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
I rev
Isd cont.
Vcc-Vin max.
Iifb, max.
Vcc sc.
Pd
Tj max.
Parameter
Maximum output voltage
Maximum reverse pulsed current (t=100µs) see page 8
Maximum diode continuous current Tambient=25°C, Rth=70°C/W
Maximum Vcc voltage
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
Maximum operating junction temperature
Maximum storage junction temperature
Min.
Max.
Units
V
A
V
mA
V
W
°C
Vcc-60 Vcc+0.3
30
2.3
-16
60
-50
10
50
2.5
150
150
-40
-55
Thermal Characteristics
Symbol
Rth1
Rth2
Rth3
Parameter
Thermal resistance junction to ambient DPak Std footprint
Thermal resistance junction to ambient Dpak 6cm² footprint
Thermal resistance junction to case Dpak
Typ.
70
50
4
Max.
Units
°C/W
Recommended Operating Conditions
These values are given for a quick design.
Symbol
Iout
RIfb
Parameter
Continuous output current, Tambient=85°C, Tj=125°C
Rth=50°C/W, Dpak 6cm² footprint
Ifb resistor
Min.
1.5
Max.
2.1
Units
A
k
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3
AUIPS7145R
Static Electrical Characteristics
Tj=-40°C..150°C, Vcc=6-50V (unless otherwise specified)
Symbol
Vcc op.
Rds(on)
Parameter
Min.
Typ.
Max.
60
100
180
3
3
4
72
5
4.7
0.9
0.75
Units
V
m
µA
mA
Test Conditions
Ids=2A
Vin=Vcc / Vifb=Vgnd
Vout=Vgnd, Tj=25°C
Vcc-Vin=28V, Tj=25°C
Id=10mA
Id=6A see fig. 2
Id=10mA
If=1A
Operating voltage
6
ON state resistance Tj=25°C
75
ON state resistance Tj=150°C(2)
135
Icc off
Supply leakage current
1
Iout off
Output leakage current
1
I in on
Input current while on
0.6
2
V clamp1
Vcc to Vout clamp voltage 1
60
64
V clamp2
Vcc to Vout clamp voltage 2
60
65
Vih(1)
High level Input threshold voltage
3
Vil(1)
Low level Input threshold voltage
1.5
2.3
Vf
Forward body diode voltage Tj=25°C
0.8
Forward body diode voltage Tj=125°C
0.65
(1) Input thresholds are measured directly between the input pin and the tab.
V
Switching Electrical Characteristics
Vcc=28V, Resistive load=27 , Tj=25°C
Symbol
tdon
tr
tdoff
tf
Parameter
Turn on delay time to 20%
Rise time from 20% to 80% of Vcc
Turn off delay time
Fall time from 80% to 20% of Vcc
Min.
4
2
20
2.5
Typ.
10
5
40
5
Max.
20
10
80
10
Units
µs
Test Conditions
See fig. 1
µs
Protection Characteristics
Tj=-40°C..150°C, Vcc=6-50V (unless otherwise specified)
Symbol
Tsd
Isd
I fault
Parameter
Over temperature threshold
Over-current shutdown
Ifb after an over-current or an over-
temperature (latched)
Min.
150(2)
20
2.2
Typ.
165
25
3
Max.
35
5
Units
°C
A
mA
Test Conditions
See fig. 3 and fig.11
See fig. 3 and page 7
See fig. 3
Current Sensing Characteristics
Tj=-40°C..150°C, Vcc=6-50V (unless otherwise specified). Specified 500µs after the turn on. Vcc-Vifb>4V
Symbol
Parameter
Min.
2000
-5%
-0.02
0
Typ.
2400
0
0
1
Max.
2800
+5
0.02
10
Units
%
A
µA
Test Conditions
Iout<4A
Tj=-40°C to +150°C
Iout<4A
Iout=0A, Vcc-Vin=28V
Ratio
I load / Ifb current ratio
Ratio_TC
I load / Ifb variation over temperature(2)
I offset
Load current offset
Ifb leakage
Ifb leakage current On in open load
(2) Guaranteed by design
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AUIPS7145R
Lead Assignments
Functional Block Diagram
All values are typical
VCC
3V
75V
1.5mA
Charge
Pump
60V
75V
+
-
Driver
75V
Reset
Set
Latch
Q
Iout > 25A
Diag
-
+
100
Tj > 165°C
IN
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IFB OUT
5
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