BTS 308
Semiconductor Group Page 7 2003-Oct-01
Inductive and overvoltage output clamp
+ V
bb
OUT
GND
PROFET
V
Z
V
ON
V
ON
clamped to 67 V typ.
Overvolt. and reverse batt. protection
+ V
bb
IN
ST
ST
R
IN
R
GND
GND
R
Signal GND
Logic
PROFET
V
Z2
I
R
V
Z1
V
Z1
= 6.2 V typ., V
Z2
= 70 V typ., R
GND
= 150 ,
R
ST
= 15 k, R
I
= 4 k typ.
Open-load detection
OFF-state diagnostic condition: V
OUT
> 3 V typ.; IN low
Open load
detection
Logic
unit
V
OUT
Signal GND
I
L(OL)
OFF
GND disconnect
PROFET
V
IN
ST
OUT
GND
bb
V
bb
1
2
4
3
5
V
IN
V
ST
V
GND
Any kind of load. In case of Input=high is V
OUT
V
IN
- V
IN(T+)
.
Due to V
GND
>0, no V
ST
= low signal available.
GND disconnect with GND pull up
PROFET
V
IN
ST
OUT
GND
bb
V
bb
1
2
4
3
5
V
GND
V
IN
V
ST
Any kind of load. If V
GND
> V
IN
- V
IN(T+)
device stays off
Due to V
GND
>0, no V
ST
= low signal available.
V
bb
disconnect with charged inductive
load
PROFET
V
IN
ST
OUT
GND
bb
V
bb
1
2
4
3
5
high
Normal load current can be handled by the PROFET
itself.
BTS 308
Semiconductor Group Page 8 2003-Oct-01
V
bb
disconnect with charged external
inductive load
PROFET
V
IN
ST
OUT
GND
bb
1
2
4
3
5
V
bb
high
S
D
If other external inductive loads L are connected to the PROFET,
additional elements like D are necessary.
Inductive Load switch-off energy
dissipation
PROFET
V
IN
ST
OUT
GND
bb
=
E
E
E
E
AS
bb
L
R
E
Load
L
R
L
{Z
L
Energy stored in load inductance:
E
L
=
1
/
2
·L·I
2
L
While demagnetizing load inductance, the energy
dissipated in PROFET is
E
AS
= E
bb
+ E
L
- E
R
=
V
ON(CL)
·i
L
(t) dt,
with an approximate solution for R
L
> 0 :
E
AS
=
I
L
· L
2
·R
L
·(V
bb
+ |V
OUT(CL)
|)· ln (1+
I
L
·R
L
|V
OUT(CL)
|
)
BTS 308
Semiconductor Group Page 9 2003-Oct-01
Options Overview
all versions: High-side switch, Input protection, ESD protection, load dump and reverse
battery protection with 150 in GND connection, protection against loss of ground
Type BTS
410D2 410E2 410G2 410H2 307 308
Logic version
D E G H
Overtemperature protection with hysteresis
T
j
>150 °C, latch function
10
)
11
)
T
j
>150 °C, with auto-restart on cooling
X
X
X
X
X
X
Short circuit to GND protection
switches off when V
ON
>3.5 V typ. and
V
bb
> 8 V typ
10
)
X
switches off when V
ON
>3.5 V typ. X
switches off when V
ON
>8.5 V typ.
10)
(when first turned on after approx. 0 µs)
Achieved through overtemperature protection
X X
X
X
Open load detection
in OFF-state with sensing current -- µA typ.
in ON-state with sensing voltage drop across
power transistor
X
X
X
X X X
Undervoltage shutdown with auto restart
X X X X X X
Overvoltage shutdown with auto restart
12
)
X X X X - X
Status feedback for
overtemperature
short circuit to GND
short to V
bb
open load
undervoltage
overvoltage
X
X
-
13)
X
X
X
X
X
-
13
)
X
-
-
X
-
-
13)
X
-
-
X
X
X
X
-
-
X
X
X
X
X
-
X
X
X
X
-
-
Status output type
CMOS
Open drain
X
X
X
X
X
X
Output negative voltage transient limit
(fast inductive load switch off)
to V
bb
- V
ON(CL)
X X X X X
Load current limit
high level (can handle loads with high inrush currents)
low level (better protection of application)
X X
X
X
X
X
Protection against loss of GND X X X X X X
10
)
Latch except when
V
bb
-V
OUT
< V
ON(SC)
after shutdown. In most cases
VOUT
= 0 V after shutdown (V
OUT
0 V only if forced externally). So the device remains latched unless
V
bb
< V
ON(SC)
(see page 4). No latch
between turn on and t
d(SC)
.
11
)
With latch function. Reseted by a) Input low, b) Undervoltage
12
)
No auto restart after overvoltage in case of short circuit
13
)
Low resistance short V
bb
to output may be detected in ON-state by the no-load-detection

BTS308 E3059

Mfr. #:
Manufacturer:
Infineon Technologies
Description:
IC SWITCH N-CH HI SIDE TO220-5
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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