Data Sheet BTS50055-1TMC
Page 5 of 17 2010-April-27
Parameter and Conditions Symbol Values Unit
at Tj = -40 ... +150 °C, V
bb
= 12 V unless otherwise specified
min typ max
Protection Functions
16)
Short circuit current limit (Tab to pins 1,2,6,7)
17)
V
ON
= 6 V T
c
=-40°C:
T
c
=25°C:
T
c
=+150°C:
I
L(SC)
I
L(SC)
I
L(SC)
--
45
--
110
130
115
--
180
--
A
Output clamp
18
)
I
L
= 40 mA:
(inductive load switch off)
see diagram Ind. and overvolt. output clamp page 7
-V
OUT(CL)
14
17
20 V
Output clamp (inductive load switch off)
at V
OUT
= V
bb
- V
ON(CL)
(e.g. overvoltage),I
L
= 40 mA
V
ON(CL)
39
42 47 V
Thermal overload trip temperature T
jt
150 -- -- °C
Thermal hysteresis
∆
T
jt
-- 10 -- K
Reverse Battery
Reverse battery voltage
19
)
-V
bb
-- -- 32 V
On-state resistance (Pins 1,2,6,7 to pin 4) T
j
= 25 °C:
V
bb
= -12V, V
IN
= 0, I
L
= - 20 A, R
IS
= 1 kΩ T
j
= 150 °C:
R
ON(rev)
--
5.4
8.9
7.0
12.3
mΩ
Integrated resistor in V
bb
line R
bb
-- 120 --
Ω
Diagnostic Characteristics
Current sense ratio, I
L
= 90 A,T
j
=-40°C:
static on-condition, T
j
=25°C:
k
ILIS
= I
L
: I
IS,
T
j
=150°C:
V
ON
< 1.5 V
20
)
, I
L
= 20 A,T
j
=-40°C:
V
IS
<V
OUT
-
5V, T
j
=25°C:
V
bIN
> 4.0 V T
j
=150°C:
see diagram on page 11 I
L
= 10 A,T
j
=-40°C:
T
j
=25°C:
T
j
=150°C:
I
L
= 4 A,T
j
=-40°C:
T
j
=25°C:
T
j
=150°C:
k
ILIS
12 400
12 000
11 400
12 200
12 000
11 500
11 100
11 500
11 400
10 000
11 000
10 600
14 200
13 700
12 800
14 800
14 100
13 200
15 300
14 500
13 300
17 600
15 600
13 800
16 000
15 400
14 200
17 400
16 200
15 000
19 500
17 500
15 200
28 500
22 000
18 000
I
IS
=0 by I
IN
=0 (e.g. during deenergizing of inductive loads):
16
) 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.
17
) Short circuit is a failure mode. The device is not designed to operate continuously into a short circuit. The
lifetime will be reduced under such conditions.
18
)
This output clamp can be "switched off" by using an additional diode at the IS-Pin (see page 7). If the diode
is used, V
OUT
is clamped to V
bb
- V
ON(CL)
at inductive load switch off.
19
)
The reverse load current through the intrinsic drain-source diode has to be limited by the connected load (as
it is done with all polarity symmetric loads). Note that under off-conditions (I
IN
= I
IS
= 0) the power transistor
is not activated. This results in raised power dissipation due to the higher voltage drop across the intrinsic
drain-source diode. The temperature protection is not active during reverse current operation! Increasing
reverse battery voltage capability is simply possible as described on page 8.
20
)
If V
ON
is higher, the sense current is no longer proportional to the load current due to sense current
saturation, see
I
IS,lim
.
