Data Sheet No. PD60285
IR3315(S)PbF
LOW EMI CURRENT SENSE HIGH SIDE SWITCH
Features
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Product Summary
Rds(on)
20 mΩ max.
Vcc op.
6 to 32V
Current Ratio
2800
Prog. Ishutdown 3 to 30A
Vclamp
40V
Load current feedback
Programmable over current shutdown
Active clamp
ESD protection
Input referenced to Vcc
Over temperature shutdown
Reverse battery protection
Lead-Free
Packages
Description
The IR3315(S)PbF is a fully protected 4 terminals high
side switch. The input signal is referenced to Vcc. 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. A current proportional to the
power Mosfet current is sourced to the Ifb pin. Over
current shutdown occurs when Vst-Vin > 4.5V. The current
shutdown threshold is adjusted by selecting the proper
RIfb. Either over current and over temperature latches off
the switch. The device is reset by pulling the input pin
high. Other integrated protections (ESD, reverse battery,
active clamp) make the switch very rugged in automotive
environment.
TO-220
IR3315PbF
D²Pak
Pin 4 and 5 fused
IR3315SPbF
Typical Connection
Vcc
IR3315
IN
Battery
Current feeback
Input
On
Off
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10k
Ifb
Out
Load
Rifb
Logic
Ground
Power
Ground
1
IR3315(S)PbF
Absolute Maximum Ratings
Absolute maximum ratings indicate sustained limits beyond which damage to the device may occur. All voltage parameters
are referenced to Vcc lead. (Tambient=25°C unless otherwise specified).
Symbol
Parameter
Vcc-Vin
Maximum Vcc voltage
Vcc-Vin cont. Maximum continuous Vcc voltage
Vcc-Vfb
Maximum Ifb voltage
Vcc-Vout
Maximum output voltage
Ids cont.
Maximum body diode continuous current Rth=60°C/W (1)
Ids pulsed
Maximum body diode pulsed current (1)
Pd
Maximum power dissipation Rth=60°C/W
ESD1
Electrostatic discharge voltage (Human body) C=100pF, R=1500Ω
ESD2
Electrostatic discharge voltage (Machine Model) C=200pF,R=0Ω
Tj max.
Max. storage & operating temperature junction temperature
Min Rfb
Minimum on the resistor on Ifb pin
Ifb max.
Max. Ifb current
(1) Limited by junction temperature. Pulsed is also limited by wiring
Min.
Max.
-16
-16
-16
-0.3
37
32
33
37
2.8
100
2
4
0.5
150
⎯
⎯
⎯
⎯
⎯
-40
0.3
-50
Units
V
A
W
kV
50
°C
kΩ
mA
Typ.
Max.
Units
60
1.6
1.6
⎯
⎯
⎯
°C/W
⎯
Thermal Characteristics
Symbol
Parameter
Rth1
Rth2
Rth3
Thermal resistance junction to ambient D²-Pak Std footprint
Thermal resistance junction to case D²-Pak
Thermal resistance junction to case TO-220
Recommended Operating Conditions
These values are given for a quick design. For operation outside these conditions, please consult the application notes.
Symbol
Parameter
Continuous output current
Tambient=85°C, Rth=5°C/W, Tj=125°C
Tambient=85°C, Rth=60°C/W, Tj=125°C
Rifb
Recommended Ifb resistor (2)(3)
Pulse min.
Minimum turn-on pulse width
Fmax.
Maximum operating frequency
2) If Rifb is too low, the device can be damaged.
3) If Rifb is too high, the device may not switch on.
Min.
Max.
Units
⎯
⎯
14
3.9
3.5
A
Iout
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0.5
1
⎯
kΩ
ms
Hz
⎯
200
2
IR3315(S)PbF
Protection Characteristics
Tj=25°C, Rifb=500 to 5kΩ
Symbol
Parameter
Vifb-Vin@Isd
Tsd
OV
Isdf
Isd_1k
Treset
Min. pulse
WAIT
Rds(on) rev.
Over-current shutdown threshold
Over temperature threshold
Over voltage protection (not latched)
Fixed over current shutdown
Programmable over current shutdown 1k
Time to reset protection
Min. pulse width (no WAIT state)
WAIT function timer
Reverse battery On state resistance
Min.
Typ.
Max.
Units
4
5.6
39
47
16
500
1200
2
28
V
°C
V
200
0.4
10
4.7
165
35
38
12
50
400
1
16
ms
mΩ
Min.
Typ.
Max.
Units
6
⎯
V
⎯
1.5
32
5
1.5
6
6.2
5.8
1
5
mA
⎯
3
5.4
4.9
0.4
1.2
Min.
Typ.
Max.
Units
3
1
2
11
4
8
0.2
40
8
0.1
27
10
20
µs
⎯
mJ
⎯
33
30
9
⎯
⎯
A
µs
Test Conditions
See fig. 5
Vifb<Vifb-Vin@Isd
Rifb=1kΩ
See fig. 5
See fig. 4 and 5
Vcc-Vin=-14V,
Iout=10A
Static Electrical Characteristics
Tj=25°C, Vcc=14V (unless otherwise specified)
Symbol
Parameter
Vcc op.
Icc off
Operating Voltage range
Supply leakage current
Iin, on
Vih
Vil
Vhyst
Iout
On state IN positive current
High level Input threshold voltage (4)
Low level Input threshold voltage (4)
Input hysteresis Vih-Vil
Drain to source leakage current
⎯
4
0.2
µA
Test Conditions
Vin=Vcc, Vcc-Vout=14V,
Vcc-Vifb=14V
Vcc-Vin=14V
V
Vin=Vcc, Vcc-Vifb=0V,
Vcc-Vout=14V
Rds(on)
On state resistance (5) Tj=25°C
10
15
20
Iout=10A, Vcc-Vin=14V
On state resistance (5) Tj=25°C
10
16
28
Iout=7A, Vcc-Vin=6V
mΩ
On state resistance (5) Tj=150°C
20
28.5
38
Iout=10A, Vcc-Vin=14V
⎯
Iout=50mA
V clamp1
Vcc to Vout clamp voltage 1
36
39
V
⎯
40
43
Iout=10A
V clamp2
Vcc to Vout clamp voltage 2
(4) Input thresholds are measured directly between the input pin and the tab. Any parasitic resistance in common between
the load current path and the input signal path can significantly affect the thresholds.
(5) Rdson is measured between the tab and the Out pin, 5mm away from the package.
µA
Switching Electrical Characteristics
Vcc=14V, Resistive load=4Ω, Tj=25°C
Symbol
Parameter
Tdon
Tr1
Tr2
Eon
Tdoff
Tf
Eoff
Turn on delay time to 10% Vcc
Rise time to Vcc-Vout=5V
Rise time to Vcc-Vout=0.1Vcc
Turn on energy
Turn off delay time
Fall time to Vout=10% of Vcc
Turn off energy
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⎯
10
2
⎯
100
20
µs
⎯
mJ
Test Conditions
See figure 2
3
IR3315(S)PbF
Current Sense Characteristics
Symbol
Parameter
Min.
Typ.
Max.
Ratio
I Load/Iifb current ratio
2,400
2,800
3,200
Ratio_TC
Offset
Trst
I Load/Iifb variation aver temperature
Load current diagnostic offset
Ifb response time (low signal)
-5
-0.08
⎯
+5
+0.07
0
1
⎯
Units
⎯
%
A
µs
⎯
Test Conditions
Tj=25°C, Rfb=500Ω,
Iout=20A
Tj=-40°C to 150°C
Iout=1A
90% of the Iout step
Functional Block Diagram
All values are typical
VCC
Driver
Charge
Pump
43V
On/Off
Fast turn-off
3mA
43V
38V
+
+
35V
43V
Reset
Set
Latch
Q
Wait
timer
1 ms
-
timer
4.7V
80Ω
400µs
+
Iout > 38A
Tj > 165°C
IN
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+
Min. Pulse
reverse
battery
protection
IFB OUT
4
IR3315(S)PbF
Lead Assignments
3- Vcc
3- Vcc
1- In
2- Ifb
3- Vcc (tab)
4- Out
5- Out
12
45
D²Pak
1 2 3 4 5
TO220
90%
Vcc-Vin
Vih
Vil
Vhyst
Icc
Vcc
IN
Iin
Ifb
Ifb
Vcc-Vout
Vclamp1
Vclamp2
IR3315
10%
Tr-in
90%
Vcc-5V
Vout
Out
10%
Iout
Isd
Figure 1 – Voltages and current definitions
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Vcc-Vin
Td on
Td off
Tf
Tr1
Tr2
Figure 2 – Switching time definitions
5
IR3315(S)PbF
T clamp
Vin
Vcc-Vin
Iout
T min. pulse
Vcc
T min. pulse
Wait
Iout
Vout
Vcc - V clamp
See Application Notes to evaluate power dissipation
Figure 3 – Active clamp waveforms
Figure 4 – Min. pulse and Wait function
Vcc-Vin
t < T reset
t > T reset
t < T reset
Wait
t > T reset
Wait
Over-current shutdown
Iout
Over-temperature shutdown
Tj
Figure 5 – Protection Timing Diagrams
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6
IR3315(S)PbF
All curves are typical characteristics. Operation in hatched areas is not recommended. Tj=25°C, Rifb=500ohm, Vcc=14V
(unless otherwise specified).
10
Icc off, supply leakage current (µA)
6
Icc, supply current (mA)
8
6
4
2
0
0
10
20
30
40
50
5
4
3
2
1
0
-50
0
Vcc-Vin, supply voltage (V)
100
150
Tj, junction temperature (°C)
Figure 6 – Icc (mA) Vs Vcc-Vin (V)
Figure 7 – Icc off (µA) Vs Tj (°C)
200%
6
5
Vih, Vil and Vifb-Vin@Isd (V)
Rds(on), Drain-to-Source On Resistance
(Normalized)
50
150%
100%
4
Vifb-Vin@Isd
VIH
3
VIL
2
1
0
50%
-50
0
50
100
Tj, junction temperature (°C)
Figure 8 - Normalized Rds(on) (%) Vs Tj (°C)
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150
-50
-25
0
25
50
75
100
125
150
Tj, junction temperature (°C)
Figure 9 – Vih, Vil and Vifb-Vin@Isd (V) Vs Tj (°C)
7
IR3315(S)PbF
100
6
Isd, over current shutdown (A)
With calibration
Spec. Max.
Error (+/-A)
4
2
0
10
1
0
5
10
15
20
25
30
100
1000
10000
Rifb, feedback resistor (Ω)
I load, load current (A)
Figure 11 – Ids (A) Vs Rifb (Ω)
Figure 10 – Error (+/- A) Vs I load (A)
15
100
60°C/W
Max. output current (A)
Max. output current (A)
35°C/W
10
5
0
10
1
-50
0
50
100
Tamb., ambient temperature (°C)
Figure 12 – Max. Iout (A) Vs Tamb. (°C)
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150
10
100
Inductance (µH)
Figure 13 – Max. Iout (A) Vs inductance (µH)
8
IR3315(S)PbF
100
Tamb=25°C
Ids, output current (A)
Tamb=100°C
10
1
1.E-01
1.E+00
1.E+01
1.E+02
1.E+03
Protection response time (s)
Figure 14 – Ids (A) Vs over temperature protection
response time (s)
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Zth, transient thermal impedance (°C/W)
100
50°C/W free air
10
5°C/W
1
0.1
0.01
1E-4
1E-3
1E-2
1E-1
1E+0
1E+1
1E+2
Time (s)
Figure 15 – Transient thermal impedance (°C/W)
Vs time (s)
9
IR3315(S)PbF
Case Outline – TO220 5 leads - Automotive Q100 PbF qualified
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10
IR3315(S)PbF
Case Outline 5 Lead - D2PAK - Automotive Q100 PbF MSL1 qualified
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11
IR3315(S)PbF
Tape & Reel
5 Lead - D2PAK
D2Pak is MSL1 qualified.
This product has been designed and qualified for the Automotive [Q100] market.
Qualification standards can be found at www.irf.com
IR WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245 Tel: (310) 252-7105
Data and specifications subject to change without notice. 9/6/2006
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12
Note: For the most current drawings please refer to the IR website at:
http://www.irf.com/package/