Parameter and Conditions Symbol Values Unit
at
T
j = 25 °C,
V
bb
= 12 V unless otherwise specified
min typ max
Protection Functions
8)
Initial peak short circuit current limit
(pin 4 to 6&7)
I
L(SCp)
T
j
=-40°C:
T
j
=25°C:
T
j
=+150°C:
48
40
31
56
50
37
65
58
45
A
Repetitive short circuit shutdown current limit
I
L(SCr)
T
j
=
T
jt
(see timing diagrams, page 12)
-- 24 -- A
Output clamp
(inductive load switch off)
at
V
OUT
=
V
bb
-
V
ON(CL)
;
I
L
= 40 mA,
T
j
=-40°C:
T
j
=+25..+150°C:
V
ON(CL)
41
43
--
47
--
52
V
Thermal overload trip temperature
T
jt
150 -- -- °C
Thermal hysteresis
∆
T
jt
-- 10 -- K
Reverse battery
(pin 4 to 2)
9
)
-
V
bb
-- -- 32 V
Reverse battery voltage drop
(V
out
> V
bb
)
I
L
= -5 A
T
j
=150 °C:
-V
ON(rev)
-- 600 -- mV
Diagnostic Characteristics
Current sense ratio
10)
, static on-condition,
V
IS
= 0...5 V,
V
bb(on)
= 6.5
11)
...27V,
k
ILIS
=
I
L
/
I
IS
T
j
= -40°C,
I
L
= 5 A:
k
ILIS
4550 5000 6000
T
j
= -40°C,
I
L
= 0.5 A: 3300 5000 8000
T
j
= 25...+150°C,
I
L
= 5 A:
,
T
j
= 25...+150°C,
I
L
= 0.5 A:
4550
4000
5000
5000
5550
6500
Current sense output voltage limitation
T
j
= -40 ...+150°C
I
IS
= 0,
I
L
= 5 A:
V
IS(lim)
5.4 6.1 6.9 V
Current sense leakage/offset current
T
j
= -40 ...+150°C
V
IN
=0,
V
IS
= 0,
I
L
= 0:
I
IS(LL)
0--1
µA
V
IN
=5 V,
V
IS
= 0,
I
L
= 0:
I
IS(LH)
0 -- 15
V
IN
=5 V,
V
IS
= 0,
V
OUT
= 0
(short circuit):
I
IS(SH)
12 )
0 -- 10
8)
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.
9)
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 2 and circuit page 9).
10)
This range for the current sense ratio refers to all devices. The accuracy of the
k
ILIS
can be raised at least by
a factor of two by matching the value of
k
ILIS
for every single device.
In the case of current limitation the sense current
I
IS
is zero and the diagnostic feedback potential
V
ST
is
High. See figure 2b, page 11.
11)
Valid if
V
bb(u rst)
was exceeded before.
12)
not subject to production test, specified by design
Data Sheet 5 V1.1, 2008-19-08
Smart High-Side Power Switch
BTS640S2G
