Datasheet

ISP 452
Page 6 2006-03-01
Parameter and Conditions Symbol Values Unit
at T
j
= 25 °C, V
bb
= 13.5V unless otherwise specified
min typ max
Protection Functions
Current limit (pin 4 to 1) T
j
= 25°C
V
bb
= 20V T
j
= -40...+150°C
I
L(SC)
0.7
0.7
1.5
--
2
2.4
A
Overvoltage protection I
bb
=4mA T
j
=-40...+150°C V
bb(AZ)
41 -- -- V
Output clamp (ind. load switch off)
at V
OUT
=V
bb
-V
ON(CL)
,
I
bb
= 4mA
V
ON(CL)
41 47 -- V
Thermal overload trip temperature T
jt
150 -- -- °C
Thermal hysteresis ∆ T
jt
-- 10 -- K
Inductive load switch-off energy dissipation
9
)
T
j, start
= 150 °C, single pulse, I
L
= 0.5 A, V
bb
= 12 V
(not tested, specified by design)
E
AS
-- -- 0.5 J
Reverse battery (pin 4 to 2)
10
)
(not tested, specified by design)
-V
bb
-- -- 30 V
9
)
While demagnetizing load inductance, dissipated energy in PROFET is E
AS
=
∫
V
ON(CL)
* i
L
(t) dt, approx.
E
AS
=
1
/
2
* L * I
2
L
* (
V
ON(CL)
V
ON(CL)
- V
bb
)
10
)
Requires 150 Ω resistor in GND connection. Reverse load current (through intrinsic drain-source diode) has to be limited by the connected
load.