BTS6460SF INFINEON [Infineon Technologies AG], BTS6460SF Datasheet - Page 46

• Manufacturer Part Number: BTS6460SF
• Description: SPI Power Controller
• Manufacturer: INFINEON [Infineon Technologies AG]

Current Sense Signal
The current sense signal (ratio
ratio
of the ratio
recommended to use resistors 1.5 k
Figure 19
Figure 20
In case of off-state, over current, dynamic temperature sensor shut down (
latch (
distinguish between over temperature or over current and over load, the SPI diagnosis word can be used.
Whereas the over load and dynamic temperature sensor shut down (
diagnosis is transmitted. The over temperature, dynamic temperature sensor latch (
is cleared by a dedicated SPI command (HWCR.CL).
1) The curves show the behavior based on characterization data. The marked points are guaranteed in this Data Sheet in
2) The curves show the behavior based on characterization data. The marked points are guaranteed in this Data Sheet in
Data Sheet
Section 9.8
Section 9.8
k
ILIS
n
=
can be adjusted to the load type (LED or bulb) via SPI register HWCR for channel 2 and 3. The accuracy
n
retry
k
Current Sense Ratio
Current Sense Ratio
ILIS
) as well as over temperature, the current sense signal of the affected channel is switched off. To
(Position 9.8.1).
(Position 9.8.1).
depends on the load current.Usually a resistor
4000
3500
3000
2500
2000
1500
1000
500
60000
50000
40000
30000
20000
10000
0
k
0
0
ILIS
0
k
k
=
ILIS
ILIS
0.5
I
L
1
Channel 0, 1
Channel 2, 3
R
/
IS
I
S
1
< 5 k . A typical value is 2.7 k .
) is provided during on-state as long as no failure mode occurs.The
2
1.5
Load current I
3
Load current I
1)
2)
2
46
4
L
2.5
[A]
L
[A]
5
R
3
IS
is connected to the current sense pin. It is
kilis Tj = -40 °C
kilis typ Tj = 25 °C
kilis Tj = 25 °C, 150 °C
kilis bulb Tj = 25 °C, 150 °C
kilis bulb typ Tj = 25 °C
kilis bulb Tj = -40 °C
kilis LED Tj = 25 °C, 150 °C
kilis LED typ Tj = 25 °C
kilis LED Tj = -40 °C
6
3.5
n
n
<
<
n
7
4
retry
n
retry
) flag is cleared every time the
), dynamic temperature sensor
4.5
8
n
=
n
SPOC - BTS6460SF
retry
) and over current flag
Rev. 1.0, 2010-04-12
Diagnosis