Datasheet

Data sheet 7 Rev. 1.21, 2012-12-06
BTS441RG
Parameter and Conditions Symbol Values Unit
at T
j
=-40...+150°C, V
bb
= 12 V unless otherwise specified
min typ max
Protection Functions
10)
Current limit (pin 3 to 5)
T
j
=-40°C: I
L(lim)
-- -- 85 A
(see timing diagrams, page 9)
Tj
=25°C:
T
j
=+150°C:
--
40
65
--
--
--
Repetitive short circuit current limit I
L(SCr)
-- 55 -- A
T
j
= T
jt
(see timing diagrams, page 10)
Thermal shutdown time
11)12)
Tj,start
=25°C:
(see timing diagram on page 10)
T
off(SC)
-- 14 -- ms
Output clamp (inductive load switch off) ;
Tj
=-40°C:
at V
OUT
= V
bb
- V
ON(CL)
, I
L
= 40 mA T
j
=25..150°C: V
ON(CL)
41
43
--
47
--
52
V
Thermal overload trip temperature T
jt
150 -- -- °C
Thermal hysteresis Δ T
jt
-- 10 -- K
Reverse battery (pin 3 to 1)
13)
-V
bb
-- -- 32 V
Reverse battery voltage drop (V
OUT
> V
bb
)
I
L
= -2A
T
j
=+150°C:
-V
ON(rev)
-- 540 -- mV
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 6cm
2
(one layer, 70μm thick) copper area for V
bb
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).