Datasheet

Analog Integrated Circuit Device Data
44 Freescale Semiconductor
10XSC425
Figure 14. Overcurrent Profile Depending on Xenon Bit
D[7:6] bits allow to MCU to programmable the bulb cooling curve and D[5:4] bits inrush curve for the selected output, as shown
Table 16 and Table 17.
A logic [1] on bit D3 (OCHI_s bit) the OCHI1 level is replaced by OCHI2 during t
OC1
, as shown Figure 15.
Table 16. Cooling Curve Selection
BC1_s (D7) BC0_s (D6) Profile Curves Speed
0 0 medium (default)
01 slow
10 fast
1 1 medium
Table 17. Inrush Curve Selection
OC1_s (D5) OC0_s (D4) Profile Curves Speed
0 0 slow (default)
01fast
1 0 medium
1 1 very slow
Xenon bit set to logic [1]:
Xenon
bit set to logic [0]:
I
OCH1
I
OCH2
I
OC1
I
OC2
I
OCLO3
I
OCLO2
I
OCLO1
I
OCLO4
t
OC1
t
OC3
t
OC4
t
OC5
t
OC6
t
OC7
Time
t
OC2
t
OC1
t
OC2
t
OC3
t
OC4
t
OC5
t
OC6
t
OC7
Time
I
OCH1
I
OCH2
I
OC1
I
OC2
I
OC3
I
OC4
I
OCL3
I
OCL2
I
OCL1
I
OCL4