ISP 772 T
Smart Power High-Side-Switch
for Industrial Applications
Features
Product Summary
• Overload protection
Overvoltage protection
Vbb(AZ)
41
V
• Current limitation
Operating voltage
Vbb(on)
5 ... 34
V
• Short circuit protection
On-state resistance
RON
60
mΩ
• Thermal shutdown with restart
Nominal load current
IL(nom)
2.6
A
• ESD - Protection
Operating temperature
Ta
-30...+85
°C
• Overvoltage protection (including load dump)
• Fast demagnetization of inductive loads
• Reverse battery protection with external resistor
• CMOS compatible input
• Loss of GND and loss of Vbb protection
• Very low standby current
PG-DSO-8
Application
• All types of resistive, inductive and capacitive loads
• µC compatible power switch for 12 V and 24 V DC industrial applications
• Replaces electromechanical relays and discrete circuits
General Description
N channel vertical power FET with charge pump, ground referenced CMOS compatible input,
monolithically integrated in Smart SIPMOS technology.
Providing embedded protective functions.
Page 1
2006-03-09
ISP 772 T
Block Diagram
+ V bb
Voltage
Overvoltage
Current
Gate
source
protection
limit
protection
V Logic
Charge pump
Level shifter
Rectifier
Limit for
unclamped
ind. loads
OUT
Temperature
sensor
IN
Load
Logic
ESD
GND
miniPROFET
Load GND
Signal GND
Pin
Symbol
Function
1
GND
Logic ground
2
IN
3
OUT
Output to the load
4
NC
not connected
5
Vbb
Positive power supply voltage
6
Vbb
Positive power supply voltage
7
Vbb
Positive power supply voltage
8
Vbb
Positive power supply voltage
Input, activates the power switch in case of logic high signal
Pin configuration
Top view
1•
8
Vbb
IN
2
7
Vbb
OUT
3
6
Vbb
NC
4
5
Vbb
GND
Page 2
2006-03-09
ISP 772 T
Maximum Ratings at Tj = 25 °C, unless otherwise specified
Parameter
Symbol
Value
Supply voltage
Vbb
40
Supply voltage for full short circuit protection
Vbb(SC)
36
Unit
V
Tj = -40...+150 °C
Continuous input voltage
VIN
-10 ... +16
Load current (Short - circuit current, see page 5)
IL
self limited
Current through input pin (DC)
I IN
±5
mA
Junction temperature
Tj
150
°C
Operating temperature
Ta
-30...+85
Storage temperature
T stg
-40 ... +105
Power dissipation 1)
Ptot
1.5
W
Inductive load switch-off energy dissipation 1)2)
EAS
900
mJ
A
single pulse, (see page 8)
Tj =150 °C, Vbb = 13.5 V, IL = 1.5 A
Load dump protection 2) VLoadDump3)= VA + VS
V
VLoaddump
RI=2Ω, td=400ms, VIN= low or high, VA=13,5V
RL = 9 Ω
63
kV
Electrostatic discharge voltage (Human Body Model) VESD
according to ANSI EOS/ESD - S5.1 - 1993
ESD STM5.1 - 1998
Input pin
±1
all other pins
±5
Thermal Characteristics
Thermal resistance @ min. footprint
Rth(JA)
-
95
-
Thermal resistance @ 6 cm2 cooling area 1)
Rth(JA)
-
70
83
K/W
1Device on 50mm*50mm*1.5mm epoxy PCB FR4 with 6 cm2 (one layer, 70µm thick) copper area for drain
connection. PCB is vertical without blown air. (see page 16)
2not subject to production test, specified by design
3V Loaddump is setup without the DUT connected to the generator per ISO 7637-1 and DIN 40839 .
Supply voltages higher than V bb(AZ) require an external current limit for the GND pin, e.g. with a
150Ω resistor in GND connection. A resistor for the protection of the input is integrated.
Page 3
2006-03-09
ISP 772 T
Electrical Characteristics
Parameter and Conditions
Symbol
at Tj = -40...+150°C, V bb = 13,5V, unless otherwise specified
Values
min.
typ.
Unit
max.
Load Switching Capabilities and Characteristics
On-state resistance
RON
mΩ
T j = 25 °C, I L = 2 A, V bb = 9...40 V
-
50
60
T j = 150 °C
-
95
120
2.6
3.1
-
A
µs
Nominal load current; Device on PCB 1)
IL(nom)
T C = 85 °C, T j ≤ 150 °C
to 90% V OUT
ton
-
90
180
to 10% V OUT
toff
-
110
230
10 to 30% V OUT,
dV/dton
-
0.7
1.5
70 to 40% V OUT,
-dV/dtoff
-
0.7
1.5
Operating voltage
Vbb(on)
5
-
34
Undervoltage shutdown of charge pump
Vbb(under)
Tj = -40...+85 °C
-
-
4
Tj = 150 °C
-
-
5.5
-
4
5.5
Turn-on time
RL = 47 Ω
Turn-off time
RL = 47 Ω
Slew rate on
V/µs
RL = 47 Ω
Slew rate off
RL = 47 Ω
Operating Parameters
Undervoltage restart of charge pump
Vbb(u cp)
Standby current
Ibb(off)
µA
Tj = -40...+85 °C, VIN = 0 V
-
-
10
Tj = 150 °C2) , VIN = 0 V
-
-
15
IL(off)
-
-
5
IGND
-
0.8
1.5
Leakage output current (included in Ibb(off))
V
VIN = 0 V
Operating current
mA
VIN = 5 V
1Device on 50mm*50mm*1.5mm epoxy PCB FR4 with 6 cm2 (one layer, 70µm thick) copper area for drain
connection. PCB is vertical without blown air. (see page 16)
2higher current due temperature sensor
Page 4
2006-03-09
ISP 772 T
Electrical Characteristics
Parameter and Conditions
Symbol
at Tj = -40...+150°C, Vbb = 13,5V, unless otherwise specified
Values
min.
typ.
Unit
max.
Protection Functions1)
Initial peak short circuit current limit (pin 5 to 3)
A
I L(SCp)
Tj = -40 °C, Vbb = 20 V, tm = 150 µs
-
-
28
Tj = 25 °C
-
17
-
Tj = 150 °C
9
-
-
-
12
-
VON(CL)
41
47
-
Vbb(AZ)
41
-
-
Thermal overload trip temperature
T jt
150
-
-
°C
Thermal hysteresis
∆Tjt
-
10
-
K
Reverse battery 3)
-Vbb
-
-
32
V
Drain-source diode voltage (VOUT > Vbb)
-VON
-
600
-
Repetitive short circuit current limit
I L(SCr)
Tj = Tjt (see timing diagrams)
Output clamp (inductive load switch off)
V
at VOUT = Vbb - VON(CL),
Ibb = 4 mA
Overvoltage protection 2)
Ibb = 4 mA
Reverse Battery
mV
Tj = 150 °C
1Integrated 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 .
2 see also VON(CL) in circuit diagram on page 7
3Requires a 150 Ω resistor in GND connection. The reverse load current through the intrinsic drain-source diode has
to be limited by the connected load. Power dissipation is higher compared to normal operating conditions due to the
voltage drop across the drain-source diode. The temperature protection is not active during reverse current operation!
Input current has to be limited (see max. ratings page 3).
Page 5
2006-03-09
ISP 772 T
Electrical Characteristics
Parameter and Conditions
Symbol
at Tj = -40...+150°C, Vbb = 13,5V, unless otherwise specified
Values
Unit
min.
typ.
max.
VIN(T+)
-
-
2.2
VIN(T-)
0.8
-
-
Input threshold hysteresis
∆V IN(T)
-
0.3
-
Off state input current (see page 12)
I IN(off)
1
-
25
I IN(on)
3
-
25
1.5
3.5
5
Input
Input turn-on threshold voltage
V
(see page 12)
Input turn-off threshold voltage
(see page 12)
µA
VIN = 0.7 V
On state input current (see page 12)
VIN = 5 V
Input resistance (see page 7)
RI
Page 6
kΩ
2006-03-09
ISP 772 T
Terms
Inductive and overvoltage output clamp
Ibb
+ V bb
V
Z
Vbb
I IN
IL
IN
PROFET
V
VON
ON
OUT
OUT
V
GND
GND
IN
V
bb
R
IGND
VOUT
GND
VON clamped to 47V typ.
Input circuit (ESD protection)
R
IN
Overvoltage protection of logic part
+ V bb
I
V
ESD- ZD I
I
I
IN
Z2
RI
L o gic
GND
V
Z1
The use of ESD zener diodes as voltage clamp
at DC conditions is not recommended
GND
R GN D
S ignal GND
Reverse battery protection
- V bb
VZ1 =6.1V typ., VZ2 =Vbb(AZ) =47V typ.,
RI=3.5 kΩ typ., RGND=150Ω
Logic
IN
RI
OUT
Power
Inverse
Diode
GND
RL
R GND
Signal GND
Power GND
RGND=150Ω, RI=3.5kΩ typ.,
Temperature protection is not active during
inverse current
Page 7
2006-03-09
ISP 772 T
Vbb disconnect with charged inductive
GND disconnect
load
Vbb
Vbb
IN
high
OUT
PROFET
IN
bb
V
OUT
GND
GND
V
PROFET
V
GND
IN
V
bb
GND disconnect with GND pull up
Inductive Load switch-off energy
dissipation
Vbb
IN
PROFET
OUT
E bb
E AS
GND
E Load
Vbb
V
bb
V
IN
V
GND
IN
PROFET
OUT
L
=
GND
ZL
{
R
EL
ER
L
Energy stored in load inductance: EL = ½ * L * IL2
While demagnetizing load inductance,
the enérgy dissipated in PROFET is
EAS = Ebb + EL - ER = VON(CL) * iL(t) dt,
with an approximate solution for RL > 0Ω:
E AS =
Page 8
IL * R L
IL * L
)
* ( V b b + | V O U T ( C L )| ) * ln (1 +
| V O U T ( C L )|
2 * RL
2006-03-09
ISP 772 T
Typ. transient thermal impedance
Typ. transient thermal impedance
ZthJA=f(tp) @ 6cm 2 heatsink area
Z thJA=f(tp) @ min. footprint
Parameter: D=tp/T
Parameter: D=tp/T
10
2
10 2
D=0.5
K/W
D=0.5
K/W
D=0.2
D=0.2
10 1
D=0.1
10 1
D=0.02
10 0
D=0.02
10 0
D=0.01
10 -1
D=0.05
Z thJA
ZthJA
D=0.05
D=0
D=0.1
D=0.01
10 -1
D=0
10 -2 -7 -6 -5 -4 -3 -2 -1 0
1
2
10 10 10 10 10 10 10 10 10 10
s
10
10 -2 -7 -6 -5 -4 -3 -2 -1 0
1
2
10 10 10 10 10 10 10 10 10 10
4
tp
s
10
tp
Typ. on-state resistance
Typ. on-state resistance
RON = f(Tj) ; Vbb = 13,5V ; Vin = high
RON = f(V bb); IL = 0.5A ; V in = high
100
120
mΩ
mΩ
RON
RON
150°C
60
80
60
25°C
40
40
-40°C
20
0
-40 -20
20
0
20
40
60
80 100 120
0
0
°C 160
Tj
Page 9
5
10
15
20
25
30
V
Vbb
40
2006-03-09
4
ISP 772 T
Typ. turn on time
Typ. turn off time
ton = f(Tj ); RL = 47Ω
toff = f(Tj); RL = 47Ω
140
32V
180
9V
µs
µs
13.5V
9V
140
32V
toff
t on
100
80
120
100
80
60
60
40
40
20
0
-40 -20
20
0
20
40
60
80 100 120
0
-40 -20
°C 160
0
20
40
60
80 100 120
Tj
Tj
Typ. slew rate on
Typ. slew rate off
dV/dton = f(T j) ; RL = 47 Ω
dV/dtoff = f(Tj); R L = 47 Ω
2
2
V/µs
V/µs
1.6
-dV
dtoff
1.6
dV
dton
°C 160
1.4
1.4
1.2
1.2
1
1
0.8
0.8
32V
32V
0.6
0.6
13.5V
0.4
0.4
13.5V
9V
0.2
0
-40 -20
9V
0.2
0
20
40
60
80 100 120
0
-40 -20
°C 160
Tj
0
20
40
60
80 100 120
°C 160
Tj
Page 10
2006-03-09
ISP 772 T
Typ. standby current
Typ. leakage current
Ibb(off) = f(Tj ) ; Vbb = 32V ; VIN = low
I L(off) = f(Tj) ; Vbb = 32V ; VIN = low
6
2.2
µA
µA
1.6
I L(off)
I bb(off)
1.8
4
1.4
1.2
3
1
0.8
2
0.6
0.4
1
0.2
0
-40 -20
0
20
40
60
80 100 120
0
-40 -20
°C 160
0
20
40
60
80 100 120
Tj
°C 160
Tj
Typ. initial peak short circuit current limit
Typ. initial short circuit shutdown time
IL(SCp) = f(Tj) ; Vbb = 20V
toff(SC) = f(Tj,start) ; Vbb = 20V
3
25
ms
toff(SC)
IL(SCp)
A
15
2
1.5
10
1
5
0
-40 -20
0.5
0
20
40
60
80 100 120
0
-40 -20
°C 160
0
20
40
60
80 100 120
°C 160
Tj
Tj
Page 11
2006-03-09
ISP 772 T
Typ. input current
Typ. input current
IIN(on/off) = f(Tj); Vbb = 13,5V; VIN = low/high
I IN = f(VIN); V bb = 13.5V
VINlow ≤ 0,7V; VINhigh = 5V
200
12
µA
µA
150°C
140
8
on
IIN
IIN
160
-40...25°C
120
100
6
off
80
4
60
40
2
20
0
-40 -20
0
20
40
60
80 100 120
0
0
°C 160
2
4
8
V
VIN
Tj
Typ. input threshold voltage
Typ. input threshold voltage
VIN(th) = f(Tj ) ; Vbb = 13,5V
VIN(th) = f(V bb) ; Tj = 25°C
2
2
V
V
1.4
off
1.2
1.6
VIN(th)
V IN(th)
on
on
1.6
1.4
1.2
off
1
1
0.8
0.8
0.6
0.6
0.4
0.4
0.2
0.2
0
-40 -20
0
20
40
60
80 100 120
0
5
°C 160
10
15
20
25
35
V
Vbb
Tj
Page 12
2006-03-09
ISP 772 T
Maximum allowable load inductance
Maximum allowable inductive switch-off
for a single switch off
energy, single pulse
L = f(IL); Tjstart =150°C, Vbb=13.5V, RL=0Ω
EAS = f(I L); T jstart = 150°C, Vbb = 13,5V
2000
1400
mH
mJ
1000
EAS
L
1500
1250
800
1000
600
750
400
500
200
250
0
0
0.5
1
1.5
2
2.5
A
IL
0
0
3.5
Page 13
0.5
1
1.5
2
2.5
A
IL
3.5
2006-03-09
ISP 772 T
Timing diagrams
Figure 2b: Switching a lamp,
Figure 1a: Vbb turn on:
IN
IN
OUT
V
bb
I
V
OUT
L
t
t
Figure 2a: Switching a resistive load,
turn-on/off time and slew rate definition
Figure 2c: Switching an inductive load
IN
IN
V
V OUT
OUT
90%
t on
d V /d to n
10%
d V /d to f f
t
o ff
I
IL
L
t
t
Page 14
2006-03-09
ISP 772 T
Figure 3a: Turn on into short circuit,
shut down by overtemperature, restart by cooling
Figure 5: Undervoltage restart of charge pump
IN
Vo n
t
I
L
I
L(SCp)
V b b( u c p )
I
L(SCr)
Vbb( under )
tm
t off(SC)
Vbb
t
Heating up of the chip may require several milliseconds, depending
on external conditions.
Figure 4: Overtemperature:
Reset if Tj < Tjt
IN
V
OUT
T
J
t
Page 15
2006-03-09
ISP 772 T
Package and ordering code
all dimensions in mm
Package:
Ordering code:
PG-DSO-8
SP000219824
Printed circuit board (FR4, 1.5mm thick, one
layer 70µm, 6cm2 active heatsink area ) as
a reference for max. power dissipation Ptot
nominal load current IL(nom) and thermal
Published by
Infineon Technologies AG,
St.-Martin-Strasse 53,
D-81669 München
© Infineon Technologies AG 2001
All Rights Reserved.
resistance R thja
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.
Infineon Technologies Components may only be used in life-support 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.
Page 16
2006-03-09