PROFET® ITS621L1
Smart Two Channel Highside Power Switch
for Industrial Applications
Features
Product Summary
Overvoltage protection
Operating voltage
Operating temperature
• Overload protection
• Current limitation
• Short circuit protection
• Thermal shutdown
• Overvoltage protection (including load dump)
• Fast demagnetization of inductive loads
• Reverse battery protection1)
• Undervoltage and overvoltage shutdown with
auto-restart and hysteresis
• Open drain diagnostic output
• Open load detection in ON-state
• CMOS compatible input
• Loss of ground and loss of Vbb protection
• Electrostatic discharge (ESD) protection
Vbb(AZ)
Vbb(on)
Ta
43
V
5.0 ... 34 V
-30…+85 °C
both
channels:
On-state resistance RON
Load current (ISO) IL(ISO)
Current limitation
IL(SCr)
each parallel
100
50 mΩ
4.4
8.5
A
8
8
A
PG-TO220AB/7
Application
• µC compatible power switch with diagnostic
feedback for 12 V and 24 V DC grounded loads
in industrial applications
• All types of resistive, inductive and capacitve
loads
• Replaces electromechanical relays, fuses and discrete circuits
7
7
1
1
Straight leads
Standard
General Description
N channel vertical power FET with charge pump, ground referenced CMOS compatible input and diagnostic
feedback, monolithically integrated in Smart SIPMOS technology. Providing embedded protective functions.
Voltage
source
V
3
IN1
6
IN2
5
ST
ESD
Overvoltage
protection
Current
limit 1
4
Logic
Voltage
Level shifter
sensor
Rectifier 1
Logic
Limit for
unclamped
ind. loads 1
Charge
pump 2
PROFET
1
Temperature
sensor 1
Gate 2
protection
Current
limit 2
Limit for
unclamped
ind. loads 2
Open load
Short to Vbb
detection 2
GND
2
OUT1
Open load
Short to Vbb
detection 1
Charge
pump 1
Level shifter
Rectifier 2
1)
+ V bb
Gate 1
protection
Signal GND
OUT2
7
Temperature
sensor 2
R
R
O1
Load
O2
GND
Load GND
With external current limit (e.g. resistor RGND=150 Ω) in GND connection, resistor in series with ST
connection, reverse load current limited by connected load.
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PROFET® ITS621L1
Pin
Symbol
Function
1
OUT1 (Load, L)
Output 1, protected high-side power output of channel 1
2
GND
Logic ground
3
IN1
Input 1, activates channel 1 in case of logical high signal
4
Vbb
5
ST
Positive power supply voltage,
the tab is shorted to this pin
Diagnostic feedback: open drain, low on failure
6
IN2
Input 2, activates channel 2 in case of logical high signal
7
OUT2 (Load, L)
Output 2, protected high-side power output of channel 2
Maximum Ratings at Tj = 25 °C unless otherwise specified
Parameter
Supply voltage (overvoltage protection see page 4)
Supply voltage for full short circuit protection
Tj Start=-40 ...+150°C
Load dump protection2) VLoadDump = UA + Vs, UA = 13.5 V
RI3)= 2 Ω, RL= 2.7 Ω, td= 200 ms, IN= low or high
Load current (Short circuit current, see page 5)
Junction temperature
Operating temperature range
Storage temperature range
Power dissipation (DC), TC ≤ 25 °C
Inductive load switch-off energy dissipation, single pulse
Vbb = 12V, Tj,start = 150°C, TC = 150°C const.
one channel, IL = 4.4 A, ZL = 32 mH, 0 Ω:
both channels parallel, IL = 8.5 A, ZL = 17 mH, 0 Ω:
Symbol
Vbb
Vbb
Values
43
34
Unit
V
V
60
V
IL
Tj
Ta
Tstg
Ptot
self-limited
+150
-30 ...+85
-40 ...+105
75
A
°C
EAS
395
790
mJ
1.0
2.0
kV
-10 ... +16
±2.0
±5.0
V
mA
VLoad dump4)
W
see diagrams on page 9
Electrostatic discharge capability (ESD)
(Human Body Model)
IN: VESD
all other pins:
acc. MIL-STD883D, method 3015.7 and ESD assn. std. S5.1-1993
Input voltage (DC)
Current through input pin (DC)
Current through status pin (DC)
VIN
IIN
IST
see internal circuit diagrams page 7
2)
3)
4)
Supply voltages higher than Vbb(AZ) require an external current limit for the GND and status pins, e.g. with a
150 Ω resistor in the GND connection and a 15 kΩ resistor in series with the status pin. A resistor for the
protection of the input is integrated.
RI = internal resistance of the load dump test pulse generator
VLoad dump is setup without the DUT connected to the generator per ISO 7637-1 and DIN 40839
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PROFET® ITS621L1
Thermal Characteristics
Parameter and Conditions
Thermal resistance
Symbol
chip - case, both channels: RthJC
each channel:
junction - ambient (free air): RthJA
min
----
Values
typ
max
-1.7
-3.4
-75
Unit
K/W
Electrical Characteristics
Parameter and Conditions, each channel
Symbol
at Tj = 25 °C, Vbb = 12 V unless otherwise specified
Values
min
typ
max
Unit
Load Switching Capabilities and Characteristics
On-state resistance (pin 4 to 1 or 7)
IL = 2 A
Tj=25 °C: RON
Tj=150 °C:
each channel
Nominal load current, ISO Norm (pin 4 to 1 or 7)
VON = 0.5 V, TC = 85 °C
each channel: IL(ISO)
both channels parallel:
Output current (pin 1 or 7) while GND disconnected
or GND pulled up, Vbb=30 V, VIN= 0, see diagram
page 8
Turn-on time
IN
to 90% VOUT:
Turn-off time
IN
to 10% VOUT:
RL = 12 Ω, Tj =-40...+150°C
Slew rate on
10 to 30% VOUT, RL = 12 Ω, Tj =-40...+150°C
Slew rate off
70 to 40% VOUT, RL = 12 Ω, Tj =-40...+150°C
Infineon Technologies AG
3
3.5
6.8
80
160
4.4
8.5
--
--
--10
ton
toff
80
80
200
200
400
400
µs
dV /dton
0.1
--
1
V/µs
-dV/dtoff
0.1
--
1
V/µs
IL(GNDhigh)
--
100
200
mΩ
A
mA
2006-Mar-28
PROFET® ITS621L1
Parameter and Conditions, each channel
Symbol
Values
min
typ
max
Tj =-40...+150°C:
Tj =-40...+150°C:
Tj =-40...+25°C:
Tj =+150°C:
Undervoltage restart of charge pump
see diagram page 13
Tj =-40...+150°C:
Undervoltage hysteresis
∆Vbb(under) = Vbb(u rst) - Vbb(under)
Overvoltage shutdown
Tj =-40...+150°C:
Overvoltage restart
Tj =-40...+150°C:
Overvoltage hysteresis
Tj =-40...+150°C:
6
)
Overvoltage protection
Tj =-40...+150°C:
Ibb=40 mA
Standby current (pin 4)
VIN=0
Tj=-40...+25°C:
Tj= 150°C:
Vbb(on)
Vbb(under)
Vbb(u rst)
5.0
3.5
--
----
Vbb(ucp)
--
∆Vbb(under)
Vbb(over)
Vbb(o rst)
∆Vbb(over)
Vbb(AZ)
Leakage output current (included in Ibb(off))
VIN=0
Operating current (Pin 2)7), VIN=5 V
both channels on, Tj =-40...+150°C
Operating current (Pin 2)7)
one channel on, Tj =-40...+150°C:
at Tj = 25 °C, Vbb = 12 V unless otherwise specified
Operating Parameters
Operating voltage5)
Undervoltage shutdown
Undervoltage restart
5)
6)
7)
Unit
V
V
V
5.6
34
5.0
5.0
7.0
7.0
--
0.2
--
V
34
33
-42
--0.5
47
43
----
V
V
V
V
14
17
--
30
35
12
µA
IL(off)
----
IGND
--
4
6
mA
IGND
--
2
3
mA
Ibb(off)
V
µA
At supply voltage increase up to Vbb= 5.6 V typ without charge pump, VOUT ≈Vbb - 2 V
See also VON(CL) in table of protection functions and circuit diagram page 8.
Add IST, if IST > 0, add IIN, if VIN>5.5 V
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PROFET® ITS621L1
Parameter and Conditions, each channel
Symbol
at Tj = 25 °C, Vbb = 12 V unless otherwise specified
Protection Functions8)
Initial peak short circuit current limit (pin 4 to 1
or 7)
Tj =-40°C:
Tj =25°C:
Tj =+150°C:
Repetitive short circuit shutdown current limit
Tj = Tjt (see timing diagrams, page 11)
Output clamp (inductive load switch off)
at VOUT = Vbb - VON(CL) IL= 40 mA, Tj =-40..+150°C:
Thermal overload trip temperature
Thermal hysteresis
Reverse battery (pin 4 to 2) 9)
Reverse battery voltage drop (Vout > Vbb)
IL = -2.9 A, each channel
Tj=150 °C:
Diagnostic Characteristics
Open load detection current
(on-condition)
Values
min
typ
max
Unit
IL(SCp)
11
9
5
18
14
8
25
22
14
A
--
8
--
A
41
150
---
47
-10
--
53
--32
V
°C
K
V
--
610
--
mV
20
20
---
400
300
mA
2
3
4
V
4
10
30
kΩ
IL(SCr)
VON(CL)
Tjt
∆Tjt
-Vbb
-VON(rev)
Tj=-40 °C: IL (OL)
Tj=25 ..150°C:
Open load detection voltage10) (off-condition)
VOUT(OL)
Tj=-40..150°C:
Internal output pull down
(pin 1 or 7 to 2), VOUT=5 V, Tj=-40..150°C
RO
8)
Integrated protection functions are designed to prevent IC destruction under fault conditions described in the
data sheet. Fault conditions are considered as "outside" normal operating range. Protection functions are
not designed for continuous repetitive operation.
9) Requires 150 Ω resistor in GND connection. The reverse load current through the intrinsic drain-source
diode has to be limited by the connected load. Note that the power dissipation is higher compared to normal
operating conditions due to the voltage drop across the intrinsic drain-source diode. The temperature
protection is not active during reverse current operation! Input and Status currents have to be limited (see
max. ratings page 2 and circuit page 8).
10) External pull up resistor required for open load detection in off state.
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PROFET® ITS621L1
Parameter and Conditions, each channel
Symbol
Values
min
typ
max
RI
2.5
3.5
6
kΩ
VIN(T+)
VIN(T-)
∆ VIN(T)
IIN(off)
1.7
1.5
-1
--0.5
--
3.5
--50
V
V
V
µA
On state input current (pin 3 or 6), VIN = 3.5 V,
Tj =-40..+150°C
IIN(on)
20
50
90
µA
Delay time for status with open load after switch
off (other channel in off state)
(see timing diagrams, page 12), Tj =-40..+150°C
Delay time for status with open load after switch
off (other channel in on state)
(see timing diagrams, page 12), Tj =-40..+150°C
Status invalid after positive input slope
(open load)
Tj=-40 ... +150°C:
Status output (open drain)
Zener limit voltage Tj =-40...+150°C, IST = +1.6 mA:
ST low voltage
Tj =-40...+25°C, IST = +1.6 mA:
Tj = +150°C, IST = +1.6 mA:
td(ST OL4)
100
320
800
µs
td(ST OL5)
--
5
20
µs
td(ST)
--
200
600
µs
5.4
---
6.1
---
-0.4
0.6
V
at Tj = 25 °C, Vbb = 12 V unless otherwise specified
Input and Status Feedback11)
Input resistance
Tj=-40..150°C, see circuit page 7
Input turn-on threshold voltage
Tj =-40..+150°C:
Input turn-off threshold voltage
Tj =-40..+150°C:
Input threshold hysteresis
Off state input current (pin 3 or 6), VIN = 0.4 V,
Tj =-40..+150°C
11)
VST(high)
VST(low)
Unit
If a ground resistor RGND is used, add the voltage drop across this resistor.
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PROFET® ITS621L1
Truth Table
Normal operation
Channel 1
Open load
Channel 2
Channel 1
Short circuit to Vbb
Channel 2
both channel
Overtemperature
Channel 1
Channel 2
Undervoltage/ Overvoltage
L = "Low" Level
H = "High" Level
IN1
IN2
OUT1
OUT2
ST
ITS621L1
L
L
H
H
L
L
H
L
H
X
L
L
H
L
H
L
H
L
H
X
L
L
H
L
H
X
L
L
H
H
Z
Z
H
L
H
X
H
H
H
L
H
L
H
L
H
X
Z
Z
H
L
H
X
L
H
X
L
X
H
L
H
X
X
X
L
L
H
L
H
X
X
X
L
H
X
L
H
X
L
L
L
L
L
X
X
L
H
H
H
L
L
L
X
X
L
L
L
H
H
H
H
H(L12))
H
L
H(L12))
H
L
L13)
H
H(L14))
L13)
H
H(L14))
H
L
L
H
L
H
L
H
X = don't care
Z = high impedance, potential depends on external circuit
Status signal after the time delay shown in the diagrams (see fig 5. page 12...13)
Terms
V
bb
Input circuit (ESD protection)
I IN1
4
3
OUT1
IN2
GND
GND
IN
I L1
IGND
I
ESD-ZD I
I L2
I
I
GND
7
V
OUT1
2
R
1
PROFET
OUT2
ST
V
V
IN1 IN2 V
5
ST
R
VON1
VON2
Vbb
IN1
I IN2
6
I ST
Ibb
ESD zener diodes are not to be used as voltage clamp
at DC conditions. Operation in this mode may result in
a drift of the zener voltage (increase of up to 1 V).
VOUT2
12)
With additional external pull up resistor
An external short of output to Vbb, in the off state, causes an internal current from output to ground. If RGND
is used, an offset voltage at the GND and ST pins will occur and the VST low signal may be errorious.
14) Low resistance to V may be detected in the ON-state by the no-load-detection
bb
13)
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PROFET® ITS621L1
Open-load detection
Status output
ON-state diagnostic condition: VON < RON * IL(OL); IN
high
+5V
R ST(ON)
+ V bb
ST
ESDZD
GND
VON
ON
ESD-Zener diode: 6.1 V typ., max 5 mA;
RST(ON) < 380 Ω at 1.6 mA, ESD zener diodes are not
to be used as voltage clamp at DC conditions.
Operation in this mode may result in a drift of the zener
voltage (increase of up to 1 V).
Inductive and overvoltage output clamp
OUT
Open load
detection
Logic
unit
OFF-state diagnostic condition: VOUT > 3 V typ.; IN low
+ V bb
V
Z
R
VON
EXT
OFF
OUT
V
OUT
PROFET
GND
Open load
detection
Logic
unit
VON clamped to 47 V typ.
R
O
Signal GND
Overvolt. and reverse batt. protection
+ V bb
IN1
V
RI
GND disconnect
Z2
V
IN2
4
bb
Logic
R ST
3
ST
IN1
Ibb
Vbb
OUT1
V
6
Z1
GND
5
R GND
PROFET
ST
GND
OUT2
7
2
V
Signal GND
VZ1 = 6.1 V typ., VZ2 = 47 V typ., RI= 3.5 kΩ typ,
RGND= 150 Ω
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IN2
1
V
V
IN1 IN2 ST
V
GND
Any kind of load. In case of Input=high is VOUT ≈ VIN - VIN(T+) .
Due to VGND >0, no VST = low signal available.
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PROFET® ITS621L1
GND disconnect with GND pull up
Inductive Load switch-off energy
dissipation
E bb
4
3
V
Vbb
IN1
OUT1
IN1
6
V
IN2
5
E AS
1
PROFET
IN2
OUT2
ST
GND
IN
7
V
bb
=
V
ST
OUT
PROFET
2
V
ELoad
Vbb
ST
GND
GND
ZL
{
L
RL
EL
ER
Any kind of load. If VGND > VIN - VIN(T+) device stays off
Due to VGND >0, no VST = low signal available.
Vbb disconnect with energized inductive
load
Energy stored in load inductance:
2
EL = 1/2·L·I L
While demagnetizing load inductance, the energy
dissipated in PROFET is
4
3
Vbb
IN1
OUT1
high
6
5
EAS= Ebb + EL - ER= ∫ VON(CL)·iL(t) dt,
1
PROFET
IN2
OUT2
ST
GND
with an approximate solution for RL > 0 Ω:
IL· L
IL·RL
)
EAS= 2·R ·(Vbb + |VOUT(CL)|)· ln (1+ |V
L
OUT(CL)|
7
2
V
Maximum allowable load inductance for
a single switch off (both channels parallel)
L = f (IL ); Tj,start = 150°C,TC = 150°C const.,
Vbb = 12 V, RL = 0 Ω
L [mH]
bb
Normal load current can be handled by the PROFET
itself.
10000
Vbb disconnect with charged external
inductive load
4
3
IN1
1000
Vbb
OUT1
high
6
5
IN2
PROFET
OUT2
ST
1
GND
D
100
7
2
V
bb
10
If other external inductive loads L are connected to the PROFET,
additional elements like D are necessary.
1
3
5
7
9
11
IL [A]
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2006-Mar-28
PROFET® ITS621L1
Typ. transient thermal impedance chip case
ZthJC = f(tp), one Channel active
ZthJC [K/W]
10
1
D=
0.5
0.2
0.1
0.05
0.02
0.01
0
0.1
0.01
1E-5
1E-4
1E-3
1E-2
1E-1
1E0
1E1
tp [s]
Typ. transient thermal impedance chip case
ZthJC = f(tp), both Channel active
ZthJC [K/W]
1
0.1
D=
0.5
0.2
0.1
0.05
0.02
0.01
0
0.01
1E-5
1E-4
1E-3
1E-2
1E-1
1E0
1E1
tp [s]
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PROFET® ITS621L1
Timing diagrams
Both channels are symmetric and consequently the diagrams
are valid for each channel as well as for permuted channels
Figure 2b: Switching an inductive load
Figure 1a: Vbb turn on:
IN
IN1
IN2
t
ST
V bb
d(ST)
*)
V
V
OUT
OUT1
V
OUT2
IL
I L(OL)
t
ST open drain
t
*) if the time constant of load is too large, open-load-status may
occur
Figure 3a: Short circuit
shut down by overtempertature, reset by cooling
Figure 2a: Switching a lamp:
IN
IN
other channel: normal operation
ST
IL
V
I
I L(SCp)
OUT
I L(SCr)
L
ST
t
t
Heating up may require several milliseconds, depending on
external conditions
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PROFET® ITS621L1
Figure 4a: Overtemperature:
Reset if Tj <Tjt
Figure 5b: Open load: detection in ON-state, turn
on/off to open load
IN1
IN
IN2
channel 2: normal operation
ST
V
OUT1
V
OUT
I
L1
channel 1: open load
T
t
J
d(ST OL4)
t
t
d(ST)
d(ST OL5)
t
Figure 5c: Open load: detection in ON- and OFF-state
(with REXT), turn on/off to open load
Figure 5a: Open load: detection in ON-state, open
load occurs in on-state
IN1
IN1
IN2
channel 2: normal operation
channel 2: normal operation
V
VOUT1
OUT1
channel 1:
open
load
IL1
t
ST
t
IN2
d(ST)
normal
load
t d(ST OL1) t
d(ST OL2)
I L1
open
load
t d(ST OL1)
ST
t d(ST OL2)
channel 1: open load
t d(ST)
t
d(ST)
t d(ST OL5)
ST
t
t
td(ST OL5) depends on external circuitry because of high
impedance
td(ST OL1) = 30 µs typ., td(ST OL2) = 20 µs typ
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PROFET® ITS621L1
Figure 6a: Undervoltage:
Figure 7a: Overvoltage:
IN
V
IN
bb
Vbb
V ON(CL)
Vbb(over)
V bb(o rst)
Vbb(u cp)
Vbb(u rst)
V
bb(under)
V
OUT
V OUT
ST
ST open drain
t
t
Figure 6b: Undervoltage restart of charge pump
off-state
on-state
V
V
bb(u rst)
V
V
V
bb(over)
off-state
VON(CL)
V on
bb(o rst)
bb(u cp)
bb(under)
V bb
charge pump starts at Vbb(ucp) =5.6 V typ.
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PROFET® ITS621L1
Package and Ordering Code
Published by
Infineon Technologies AG,
St.-Martin-Strasse 53,
D-81669 München
© Infineon Technologies AG 2006
All Rights Reserved.
All dimensions in mm
Standard PG-TO220AB/7
ITS621L1
Ordering code
SP000219533
Attention please!
The information herein is given to describe certain
components and shall not be considered as a guarantee of
characteristics.
Terms of delivery and rights to technical change reserved.
We hereby disclaim any and all warranties, including but not
limited to warranties of non-infringement, regarding circuits,
descriptions and charts stated herein.
Infineon Technologies is an approved CECC manufacturer.
Information
For further information on technology, delivery terms and
conditions and prices please contact your nearest Infineon
Technologies Office in Germany or our Infineon
Technologies Representatives worldwide (see address list).
Warnings
Due to technical requirements components may contain
dangerous substances. For information on the types in
question please contact your nearest Infineon Technologies
Office.
PG-TO220AB/7, Opt. E3230 Ordering code
ITS621L1 E3230
SP000221224
Infineon Technologies Components may only be used in lifesupport devices or systems with the express written
approval of Infineon Technologies, if a failure of such
components can reasonably be expected to cause the
failure of that life-support device or system, or to affect the
safety or effectiveness of that device or system. Life support
devices or systems are intended to be implanted in the
human body, or to support and/or maintain and sustain
and/or protect human life. If they fail, it is reasonable to
assume that the health of the user or other persons may be
endangered.
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2006-Mar-28