• Overvoltage protection (including load dump) with external
GND-resistor
• Reverse battery protection with external GND-resistor
• Loss of ground and loss of Vbb protection
• Electrostatic discharge (ESD) protection
IN
Vbb
Logic
with
protection
functions
PROFET
OUT
Load
GND
Infineon Technologies AG 1 of 11 2003-Oct-01
BTS 441 T
p
Functional diagram
IN
overvoltage
rotection
internal
voltage supply
ESD
logic
gate
control
+
charge
pump
temperature
sensor
current limit
clamp for
inductive load
VBB
OUT
LOAD
GND
PROFET
Pin Definitions and Functions
Pin
Symbol Function
1
2 IN
3 Vbb
GND
Input, activates the power switch in
Positive power supply voltage
The tab is shorted to pin 3
4 N.C.
5 OUT
Tab Vbb
Positive power supply voltage
The tab is shorted to pin 3
Logic ground
case of logical high signal
Not connected
Output to the load
Pin configuration
(top view)
Tab = V
BB
1 2 (3) 4 5
GND IN NC OUT
Infineon Technologies AG 2 2003-Oct-01
BTS 441 T
Maximum Ratings at Tj = 25 °C unless otherwise specified
Parameter Symbol Values Unit
Supply voltage (overvoltage protection see page 4) Vbb 43V
Supply voltage for full short circuit protection
T
=-40 ...+150°C
j Start
Load dump protection1) V
2)
R
= 2 Ω, RL= 0,5 Ω, td= 200 ms, IN= low or high
I
LoadDump
= VA + Vs, VA = 13.5 V
Load current (Short-circuit current, see page 5) IL self-limitedA
Operating temperature range
Storage temperature range
Power dissipation (DC) ; TC≤25°C P
Maximal switchable inductance, single pulse
V
=12V, T
bb
(see diagram, p.8) I
=150°C, TC =150°C const.
j,start
=21A, RL= 0 Ω: E
L(ISO)
4)
AS
=0.7J:
Electrostatic discharge capability (ESD) IN:
(Human Body Model) Out to all other pins shorted:
47
Thermal overload trip temperature Tjt 150 -- --°C
Thermal hysteresis
Reverse battery (pin 3 to 1)
13)
Reverse battery voltage drop (V
IL = -2A
-Vbb -- -- 32V
> Vbb)
OUT
=+150°C:
Tj
∆
Tjt -- 10 --K
-V
ON(rev)
-- 540 --mV
85
52
A
--
--
--
V
10)
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.
11)
not subject to production test, specified by design
12)
Device on 50mm*50mm*1.5mm epoxy PCB FR4 with 6cm2 (one layer, 70µm thick) copper area for Vbb
connection. PCB is vertical without blown air.
13)
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 1 and circuit page 7).
Infineon Technologies AG 5 2003-Oct-01
BTS 441 T
Parameter and Conditions Symbol Values Unit
at Tj =-40...+150°C, Vbb = 12 V unless otherwise specified
14)
Input
min typ max
Input resistance see circuit page 7RI 2.53.8 6.5kΩ
Input turn-on threshold voltage V
Input turn-off threshold voltage V
Input threshold hysteresis ∆ V
Off state input current (pin 2) VIN = 0.4 V: I
On state input current (pin 2) VIN = 5 V: I
1.2 -- 2.2V
IN(T+)
0.8 -- --V
IN(T-)
-- 0.3 --V
IN(T)
1 -- 15µA
IN(off)
4.5 12 24µA
IN(on)
14)
If a ground resistor R
is used, add the voltage drop across this resistor.
GND
Infineon Technologies AG 6 2003-Oct-01
BTS 441 T
Overvolt. and reverse batt. protection
Terms
+ V
bb
I
bb
V
bb
I
IN
IN
2
V
IN
R
Input circuit (ESD protection)
R
IN
I
PROFET
GND
Leadframe, 3
V
bb
GND
1
I
OUT
GND
R
IN
I
V
L
ON
R
I
IN
Logic
5
V
Z1
V
OUT
R
Signal GND
= 6.1 V typ., VZ2 = 47 V typ., R
V
Z1
R
= 3.5 kΩ typ.
I
In case of reverse battery the load current has to be
limited by the load. Temperature protection is not
active
GND
V
Z2
PROFET
GND
Load GND
= 150 Ω,
GND
OUT
R
Load
ESD-ZD
I
I
I
GND
The use of ESD zener diodes as voltage clamp at DC
conditions is not recommended.
Inductive and overvoltage output clamp
V
Z
GND
PROFET
+ V
V
OUT
bb
ON
V
clamped to 47 V typ.
ON
GND disconnect
V
bb
IN
PROFET
OUT
GND
VbbV
Any kind of load. In case of Input=high is V
IN
V
GND
OUT
≈ VIN - V
GND disconnect with GND pull up
V
bb
IN(T+)
.
V
OUT
GND
PROFET
IN
GND
V
bb
V
IN
Any kind of load. If V
GND
> V
- V
IN
device stays off
IN(T+)
Infineon Technologies AG 7 2003-Oct-01
BTS 441 T
A
Vbb disconnect with charged inductive
load
V
bb
high
V
bb
For inductive load currents up to the limits defined by ZL
(max. ratings and diagram on page 8) each switch is
protected against loss of Vbb.
Consider at your PCB layout that in the case of Vbb disconnection with energized inductive load all the load current
flows through the GND connection.
IN
PROFET
GND
OUT
Inductive load switch-off energy
dissipation
E
bb
E
S
V
bb
/
·L·I
2
OUT
Z
2
L
ON(CL)·iL
L
L
{
R
L
(t) dt,
IN
PROFET
=
GND
Energy stored in load inductance:
1
=
E
L
While demagnetizing load inductance, the energy
dissipated in PROFET is
= Ebb + EL - ER= V
E
AS
E
E
E
Load
L
R
with an approximate solution for RL > 0
·L
I
L
=
(V
E
AS
·R
2
+|V
OUT(CL)
bb
L
|) ln(1+
Ω:
|V
·R
I
L
L
OUT(CL)
)
|
Maximum allowable load inductance for
a single switch off
L = f (I
L [mH]
1000
100
10
L
); T
j,start
150°C, V
=
=12V, RL =0Ω
bb
1
0.1
0 5 101520253035
I
[A]
L
Infineon Technologies AG Page 8 2003-Oct-01
BTS 441 T
Typ. on-state resistance
R
= f (Vbb,T
ON
R
[mΩ]
ON
40
); IL =2A, IN = high
j
35
Tj = 150°C
30
25
20
25°C
15
-40°C
10
5
3 5 7 93040
V
bb
[V]
Typ. standby current
I
= f (T
bb(off)
[µA]
I
bb(off)
j
); V
= 9...34 V, IN1,2 = low
bb
0
15
10
5
0
-50050100150200
T
[°C]
j
Infineon Technologies AG Page 9 2003-Oct-01
BTS 441 T
IN
IN
Timing diagrams
Figure 2b: Switching a lamp,
Figure 1a: Vbb turn on:
V
OUT
V
bb
I
L
t
V
OUT
proper turn on under all conditions
Figure 2a: Switching a resistive load,
Figure 3a: Short circuit
shut down by overtemperature, reset by cooling
IN
I
other channel: normal operation
L
turn-on/off time and slew rate definition:
I
IN
L(lim)
I
L(SCr)
V
OUT
90%
10%
I
t
on
dV/dton
t
off(SC)
Heating up may require several milliseconds, depending on
dV/dtoff
t
off
external conditions
Figure 4a: Overtemperature:
Reset if T
<Tjt
j
t
IN
L
V
OUT
t
T
J
t
Infineon Technologies AG 10 2003-Oct-01
BTS 441 T
Package and Ordering Code
Straight: P-TO220-5-12
All dimensions in mm
Standard (=staggered): P-TO220-5-11
Sales code BTS441T
Ordering code: Q67060-S6112-A2
±0.2
10
±0.15
9.8
8.5
3.7
-0.15
1)
±0.3
±0.3
13.4
17
15.65
C
0...0.15
1.7
1)
Typical
All metal surfaces tin plated, except area of cut.
SMD: P-TO263-5-2 (tape&reel)
Sales code BTS441T G
Ordering code: Q67060-S6112-A3
±0.2
10
±0.15
9.8
8.5
±0.3
1
±0.2
9.25
(15)
5x0.8
±0.1
1)
Typical
All metal surfaces tin plated, except area of cut.
The information herein is given t o describe certain components and
shall not be considered as a guarantee of characteristic s.
Terms of delivery and rights to technical change reserv ed.
We hereby disclaim any and all warranties, including but not l i mited
to warranties of non-infringement , regardi ng circuits, desc ri ptions
and charts stated herein.
Information
For further information on technol ogy, delivery terms and conditions
and prices please contact your nearest Infineon Technologies Office
in Germany or our Infineon Technologies Representatives worldwide
(see address ist).
1.27
B
±0.1
0.1
4.4
0.05
Warnings
2.4
Due to technical requirements components may contain dangerous
substances. For inform ation on the types in questi on pl ease contact
your nearest Infineon Technologies Office.
Infineon Technologies Components m ay only be used in life-support
devices or systems with the express written approval of Infineon
±0.5
4.7
±0.3
2.7
Technologies, if a failure of such components can reasonabl y be
0.5
±0.1
expected to cause the f ai l ure of that life-support device or system, or
to affect the safety or effectiveness of that device or system. Life
M
8˚ max.
BA0.25
0.1
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 m ay be endangered.
Sales code BTS441T S
Ordering code: Q67060-S6112-A4
±0.2
10
9.8
8.5
3.7
1)
±0.3
±0.3
13.4
17
15.65
C
0...0.15
1.7
Typical
1)
All metal surfaces tin plated, except area of cut.
±0.15
1)
-0.15
6x
0.8
±0.2
2.8
±0.5
11
±0.1
A
±0.5
13
M
BA0.25
B
4.4
±0.1
1.27
0.05
2.4
C
0.5
±0.2
9.25
±0.1
Infineon Technologies AG 11 2003-Oct-01
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