mc10xs3412 Freescale Semiconductor, Inc, mc10xs3412 Datasheet - Page 36

• Manufacturer Part Number: mc10xs3412
• Description: Quad High Side Switch Dual 10m, Dual 12m
• Manufacturer: Freescale Semiconductor, Inc

on the CSNS pin for the corresponding output. The default
value [0] is the low ratio
ADDRESS A
REGISTER (OCR)
corresponding output over-current protection through the
SPI. Each output “s” is independently selected for
configuration based on the state of the D14 : D13 bits
(Table
current profile, as described
36
10XS3412
Table 14. Current Sense Ratio Selection
FUNCTIONAL DEVICE OPERATION
LOGIC COMMANDS AND REGISTERS
Figure 13. Over-current profile depending on Xenon bit
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
OCH
OCH2
OC1
OC2
OC3
OC4
OCLO4
OCLO3
OCLO2
OCLO1
OCH
OCH2
OC1
OC2
OCLO4
OCLO3
OCLO2
OCLO1
Xenon bit set to logic [0]:
Xenon bit set to logic [1]:
A logic [1] on bit D0 (CSNS_ratio_s) selects the high ratio
The OCR_s register allows the MCU to configure
A logic [1] on bit D8 (Xenon_s) enables the bulb over-
1
1
CSNS_high_s (D0)
11).
t
t
OC1
OC1
t
t
OC2
OC2
t
t
OC3
OC3
0
1
1
A
0
t
t
OC4
100 — OUTPUT OVER-CURRENT
OC4
t
t
(Table
OC5
OC5
Figure
14).
t
t
OC6
OC6
Current Sense Ratio
13.
CRS0 (default)
t
t
OC7
OC7
CRS1
Time
Time
curve and D[5:4] bits inrush curve for selected output, as
shown
.
replaced by OCHI2 during t
current levels in steady state, as defined in
Table 15. Cooling Curve Selection
I
I
I
I
I
I
I
I
I
I
Table 16. Inrush Curve Selection
Figure 14. Over-current profile with OCHI bit set to ‘1’
OCH
OCH2
OC1
OC2
OC3
OC4
OCLO4
OCLO3
OCLO2
OCLO1
Table 17. Output Steady State Selection
OCLO1 (D2) OCLO0 (D1)
D[7:6] bits allow to MCU to programmable bulb cooling
A logic [1] on bit D3 (OCHI_s bit) the OCHI1 level is
The wire harness is protected by one of four possible
BC1_s (D7)
OC1_s (D5)
1
t
Table 15
OC1
0
0
1
1
t
0
0
1
1
OC2
0
0
1
1
t
OC3
and
t
OC4
0
1
0
1
Table
BC0_s (D6)
Analog Integrated Circuit Device Data
t
OC0_s (D4)
OC5
16.
0
1
0
1
OC1
0
1
0
1
, as shown
t
OC6
Steady State Current
Freescale Semiconductor
OCLO2 (default)
Profile Curves Speed
OCLO3
OCLO4
OCLO1
Profile Curves Speed
t
OC7
medium (default)
Figure
slow (default)
Table
very slow
medium
medium
slow
fast
fast
14.
17.
Time