BTS5240LXT Infineon Technologies, BTS5240LXT Datasheet - Page 12

• Manufacturer Part Number: BTS5240LXT
• Manufacturer: Infineon Technologies

Specifications of BTS5240LXT

• Switch Type: High Side
• Power Switch Family: BTS 5240
• Input Voltage: -10 to 16V
• Power Switch On Resistance: 11mOhm
• Output Current: 4.1A
• Number Of Outputs: Dual
• Mounting: Surface Mount
• Supply Current: 1.6mA
• Package Type: DSO
• Operating Temperature (min): -40C
• Operating Temperature (max): 150C
• Operating Temperature Classification: Automotive
• Pin Count: 12
• Power Dissipation: 1.4W
• Lead Free Status / Rohs Status: Not Compliant

R
V
Reverse battery protection
OUT1 or OUT2
IS
V Z1 = 6,1V typ., V Z2 = 47V typ., R GND = 150
R IS = 1k , R I = 3,5k typ.
In case of reverse battery the load current has to
be limited by the load. Protection functions are
not active.
Open load detection, OUT1 or 2
Off-state diagnostic condition:
Open load, if V OUT > 3 V typ.; IN = low
GND disconnect
bb
Any kind of load.
Lo g ic
u n it
O F F
V
IN
IN
IS
V
P R O F E T
IS
R
I
V
Z 1
O p e n lo a d
d e tec tio n
IN
IS
PROFET
L o g ic
GND
S ig na l G N D
V
S ig n a l G N D
bb
R
V
G N D
GND
OUT
-I
V
Z 2
G N D
L o a d G N D
O U T
R
L o a d
R
E X T
V
V
- V b b
b b
O U T
Page 12
E
Vbb disconnect with energized inductive
load
For inductive load currents up to the limits defined
by Z L each switch is protected against loss of V bb .
(max. ratings and diagram on page 12)
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.
Inductive load switch-off energy
dissipation
=
=
Energy stored in load inductance: E
While demagnetizing load inductance,
E
with an approximate solution for R
the enérgy dissipated in PROFET is
V
V
V
AS
AS
bb
bb
bb
E
E
high
high
= E
bb
bb
2
I
L
*
bb
*
R
L
+ E
L
IN
IN
IS
IS
IN
IN
IS
IS
*(
L
PROFET
PROFET
V
PROFET
PROFET
GND
GND
- E
V
V
bb
GND
GND
bb
bb
V
V
bb
bb
R
|
V
= V
OUT
OUT
OUT
OUT
OUT CL
E AS
E AS
ON(CL)
(
Z
Z
L
L
{
{
R
R
)|
L
L
L
L
)* ln(
E
E
* i
E
E
E Load
E Load
L
R
R
L
L
BTS 5240L
2005-06-03
L
L
1
> 0 :
(t) dt,
= ½ * L * I
|
V
I
L
OUT CL
*
R
(
L
L
)
2
|
)