PROFET® BTS 443 P
Smart Highside Power Switch
•
Reverse battery protection by self turn on of
power MOSFET
Reversave
Features
•
Short circuit protection
•
Current limitation
•
Overload protection
•
Thermal shutdown
PG-TO252-5-11
•
Overvoltage protection (including load dump)
•
Loss of ground protection
•
Loss of
V
bb
protection (with external diode for
charged inductive loads)
•
Very low standby current
•
Fast demagnetisation of inductive loads
•
Electrostatic discharge
(ESD) protection
•
Optimized static
electromagnetic compatibility
(EMC)
•
Green product (RoHS compliant)
•
AEC qualified
Product Summary
Operating voltage
On-state resistance
Load current (ISO)
Current limitation
Package
V
bb(on)
R
ON
I
L(ISO)
I
L(SCr)
5.0 ... 36
V
16
mΩ
25
A
65
A
Diagnostic Function
Application
•
Proportional load current sense (with defined fault signal during thermal shutdown)
•
Power switch with current sense diagnostic feedback for 12V and 24 V DC grounded loads
•
All types of resistive, capacitive and inductive loads (no PWM with inductive loads)
•
Replaces electromechanical relays, fuses and discrete circuits
General Description
N channel vertical power FET with charge pump, current controlled input and diagnostic feedback with load
current sense, integrated in Smart SIPMOS
chip on chip technology. Providing embedded protective functions.
3 & Tab
Voltage
source
Overvoltage
protection
Current
limit
Gate
protection
OUT
R bb
+ V bb
1, 5
I
L
Voltage
sensor
Charge pump
Level shifter
Rectifier
Limit for
unclamped
ind. loads
Output
Voltage
detection
Current
Sense
Load
2
IN
ESD
Logic
I
IN
Temperature
sensor
I
IS
IS
PROFET
Load GND
V
IN
V
IS
Logic GND
4
R
IS
Data Sheet
Page 1 of 15
Rev. 1.0, 2007-02
PROFET® BTS 443 P
Pin
1
2
Tab/(3)
4
5
Symbol
OUT
IN
Vbb
IS
OUT
O
I
+
S
O
Function
Output to the load. The pin 1 and 5 must be shorted with each
other especially in high current applications!*)
Input, activates the power switch in case of short to ground
Positive power supply voltage, the tab is shorted to this pin.
Diagnostic feedback providing a sense current proportional to the load
current; high current on failure (see Truth Table on page 6)
Output to the load. The pin 1 and 5 must be shorted with each
other especially in high current applications!*)
*) Not shorting all outputs will considerably increase the on-state resistance, reduce the peak current capability
and decrease the current sense accuracy
Maximum Ratings
at
T
j
= 25 °C unless otherwise specified
Parameter
Supply voltage (overvoltage protection see page 4)
Supply voltage for full short circuit protection
(see also diagram on page 9)
T
j
=-40...150 °C:
Load dump protection
V
LoadDump
=
U
A
+
V
s
,
U
A
= 13.5 V
R
I
= 2
Ω,
R
L
= 2.7
Ω,
t
d
= 200 ms, IN= low or high
Load current (Short-circuit current, see page 4)
Operating temperature range
Storage temperature range
Power dissipation (DC) TC
≤
25°C
Inductive load switch-off energy dissipation,
single pulse U=12V, I=10A, L=3mH
T
j
=150 °C:
Electrostatic discharge capability (ESD)
(Human Body Model)
acc.
ESD assn. std. S5.1-1993; R=1.5kΩ; C=100pF
Current through input pin (DC)
Current through current sense pin (DC)
see internal circuit diagrams page 7
Symbol
V
bb
V
bb
V
Load dump2
)
I
L
T
j
T
stg
P
tot
E
AS
V
ESD
I
IN
I
IS
Values
36
24
1
)
60
self-limited
-40 ...+150
-55 ...+150
42
0.15
4.0
+15, -100
+15, -100
Unit
V
V
V
A
°C
W
J
kV
mA
1)
2)
Short circuit is tested with 100mΩ and 20µH
V
Load dump
is set-up without the DUT connected to the generator per ISO 7637-1 and DIN 40839
Data Sheet
Page 2 of 13
Rev. 1.0, 2007-02
PROFET® BTS 443 P
Thermal Characteristics
Parameter and Conditions
Thermal resistance
Symbol
min
--
--
--
chip - case
:
R
thJC3
)
junction - ambient (free air):
R
thJA
SMD version, device on PCB
4)
:
Values
typ
max
--
1.5
80
--
45
--
Unit
K/W
Electrical Characteristics
Parameter and Conditions
at
T
j
= -40°C...150°C,
V
bb
= 12 V unless otherwise specified
Symbol
Values
min
typ
max
Unit
Load Switching Capabilities and Characteristics
On-state resistance (pin 3 to pin 1,5)
V
IN
= 0,
I
L
= 5 A
T
j
=25 °C:
R
ON
V
ON(NL)
--
--
13
25
50
16
31
--
mΩ
mV
A
I
L(ISO)
I
L(nom)
t
on
t
off
dV /dt
on
-dV/dt
off
21
6.2
150
70
0.1
0.1
25
7.6
--
--
--
--
--
--
410
410
1
1
µs
T
j
=150 °C:
Output voltage drop limitation at small load
currents (Tab to pin 1,5)
T
j
=-40...150 °C:
Nominal load current (Tab to pin 1,5)
ISO Proposal:
T
C
=85°C,
V
ON
≤0.5V,
T
j
≤150°C
SMD
4)
:
T
A
=85°C,
V
ON
≤0.5V,
T
j
≤150°C
Turn-on time
IIN
to 90%
V
OUT
:
Turn-off time
IIN
to 10%
V
OUT
:
R
L
= 2,5Ω
,
T
j
=-40...150 °C
Slew rate on
10 to 30%
V
OUT
,
R
L
= 2.5
Ω,
T
j
=-40...150 °C
Slew rate off
70 to 40%
V
OUT
,
R
L
= 2.5
Ω,
T
j
=-40...150 °C
V/µs
V/µs
3)
4
)
Thermal resistance R
thCH
case to heatsink (about 0.5 ... 0.9 K/W with silicone paste) not included!
Device on 50mm*50mm*1.5mm epoxy PCB FR4 with 6cm
2
(one layer, 70µm thick) copper area for Vbb
connection. PCB is vertical without blown air.
Data Sheet
Page 3 of 13
Rev. 1.0, 2007-02
PROFET® BTS 443 P
Parameter and Conditions
at
T
j
= -40°C...150°C,
V
bb
= 12 V unless otherwise specified
Symbol
Values
min
typ
max
Unit
Operating Parameters
Operating voltage (V
IN
=0V)
Undervoltage shutdown
5
)
Undervoltage restart of charge pump (V
IN
=0V)
Overvoltage protection
6
)
I
bb
=15 mA
Standby current
I
IN
=0
V
bb(on)
V
bIN(u)
V
bb(ucp)
V
Z,IN
5.0
1.5
3.0
61
--
--
--
3.0
4.5
68
2
4
36
4.5
6.0
--
5
8
V
V
V
V
µA
T
j
=-40...+25°C
:
I
bb(off)
T
j
=150°C:
Protection Functions
7
)
Short circuit current limit (Tab to pin 1,5)
V
ON
=8V, time until limitation max. 300µs
T
j
=-40°C:
T
j
=25°C:
T
j
=+150°C:
Repetitive short circuit current limit,
T
j =
T
jt
Output clamp (inductive load switch off)
at
V
OUT
=
V
)
bb
-
V
ON(CL)
(e.g. overvoltage)
I
L
= 40 mA
8
Thermal overload trip temperature
Thermal hysteresis
Reverse Battery
Reverse battery voltage
On-state resistance (pin 1,5 to pin 3)
I
L(SC)
I
L(SCr)
V
ON(CL)
T
jt
∆
T
jt
35
35
35
--
38
150
--
75
65
65
65
42
--
10
110
110
125
--
48
--
--
A
A
V
°C
K
-V
bb
--
--
--
--
--
--
16
25
200
20
22
19
32
--
V
mΩ
V
bb
= - 8V,
V
IN
= 0,
I
L
= -5 A,
R
IS
= 1 kΩ,
T
j
=25 °C:
R
ON(rev)
V
bb
= -12V,
V
IN
= 0,
I
L
= -5 A,
R
IS
= 1 kΩ,
T
j
=25 °C:
T
j
=150 °C:
Integrated resistor in
V
bb
line
R
bb
Ω
5)
6)
7)
8
)
V
bIN
=V
bb
-V
IN
see diagram on page 11.
see also
V
ON(CL)
in circuit diagram on page 7.
Integrated protection functions are designed to prevent IC destruction under fault condition described in the
data sheet. Fault conditions are considered as “outside” normal operating range. Protection functions are not
for continuous repetitive operation.
see also page 12.
Data Sheet
Page 4 of 15
Rev. 1.0, 2007-02
PROFET® BTS 443 P
Diagnostic Characteristics
Current sense ratio, static on-condition
k
ILIS
=
I
L
:
I
IS
V
ON
<1.5 V,
V
IS
<V
OUT
- 5 V,
V
bIN
>4.5 V
9)
IL = 20A, Tj = -40°C:
Tj = +25°C:
Tj = +150°C:
IL = 5A, Tj = -40°C:
Tj = +25°C:
Tj = +150°C:
IL = 2.5A, Tj = -40°C:
Tj = +25°C:
Tj = +150°C:
IL = 1A, Tj = -40°C:
Tj = +25°C:
Tj = +150°C:
I
IN
= 0
(e.g. during de-energising of inductive loads)
:
Sense current under fault conditions;
V
DS
>1.5V, typ.
T
j
= -40...+150°C
:
I
IS,fault
Fault-Sense signal delay after negative input slope
t
delay(fault)
Current sense leakage current
I
IN
= 0:
I
IS(LL)
V
IN
= 0,
I
L
=
0:
I
IS(LH)
Current sense settling time to
I
IS static
±10%
after
t
son(IS)
positive input slope,
I
L
= 0
20 A
10)
T
j
= -40...+150°C
:
Overvoltage protection
I
bb
= 15 mA
T
j
= -40...+150°C:
V
bIS(Z)
Input
Required current capability of input switch
I
IN(on)
T
j
=-40..+150°C:
Maximum input current for turn-off
T
j
=-40..+150°C:
I
IN(off)
--
--
--
--
4
--
0.5
12
400
µs
µA
k
ILIS
--
8200
--
7400
7500
7500
6800
7200
7200
6800
6800
6800
6800
6800
6800
--
2.5
8300
8300
8200
8300
8300
8200
8500
8500
8100
8600
8600
8600
n.a.
4
9100
9100
8800
9700
9300
9000
10000
9800
9200
10500
10500
10500
--
--
0.8
mA
ms
61
68
--
V
--
--
0.7
--
1.2
50
mA
µA
9)
If V
ON
is higher, the sense current is no longer proportional to the load current due to sense current
saturation.
10
) Not subject to production test, specified by design.
Data Sheet
Page 5 of 15
Rev. 1.0, 2007-02
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