ITech IT6090C-500-450

Power Supply Function
Test–4
Starter motor engagement disturbance pulse.
Table 4–1 Parameter Description
Parameters 12V 24V
V
S
(From V
B
) -4V to -7V -5V to -16V
V
a
(From V
B
) -2.5 to -6V with |V
a
|≤|V
S
| -5 to -12V with |V
a
|≤|V
S
|
R
i
0Ω to 0.02Ω 0Ω to 0.02Ω
t
7
15 to 40ms
(1)
50 to 100ms
(1)
t
8
≤50ms ≤50ms
t
9
0.5 to 20s
(1)
0.5 to 20s
(1)
t
10
5ms 10ms
t
11
5 to 100ms
(2)
10 to 100 ms
(3)
(1). The value used should be agreed between the vehicle manufacturer and
the equipment supplier to suit the proposed application.
(2). t
11
=5 ms is typical of the case when engine starts at the end of the crank-
ing period, while t
11
=100 ms is typical of the case when the engine does not
start.
(3). t
11
=10 ms is typical of the case when engine starts at the end of the crank-
ing period, while t
11
=100 ms is typical of the case when the engine does not
start.
Test–5
For the details, please refer to the Load Dump Dynamic Behavior.
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