参数资料
型号: MC15XS3400DPNA
厂商: Freescale Semiconductor
文件页数: 37/52页
文件大小: 0K
描述: IC SWITCH HIGH SIDE PWR 24QFN
标准包装: 168
类型: 高端开关
输出数: 4
Rds(开): 15 毫欧
内部开关:
电流限制: 5A
输入电压: 6 V ~ 20 V
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 24-PowerQFN
供应商设备封装: 24-PQFN(12x12)
包装: 托盘
FUNCTIONAL DEVICE OPERATION
LOGIC COMMANDS AND REGISTERS
A logic [1] on bit D0 (CSNS_ratio_s) selects the high ratio
on the CSNS pin for the corresponding output. The default
value [0] is the low ratio ( Table 15 ).
.
Table 16. Cooling and Inrush Curve Selection
Table 15. Current Sense Ratio Selection
BC1_s (D7)
0
BC0_s (D6)
0
Profile Curves Speed
medium (default)
CSNS_high_s (D0)
0
1
Current Sense Ratio
CRS0 (default)
CRS1
0
1
1
1
0
1
slow
fast
medium
ADDRESS A 1 A 0 100 — OUTPUT OVER-CURRENT
REGISTER (OCR)
Table 17. Inrush Curve Selection
The OCR_s register allows the MCU to configure
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
A logic [1] on bit D8 (Xenon_s) enables the bulb over-
current profile, as described Figure 13.
OC1_s (D5)
0
0
1
1
OC0_s (D4)
0
1
0
1
Profile Curves Speed
slow (default)
fast
medium
very slow
A logic [1] on bit D3 (OCHI_s bit) the OCHI1 level is
Xenon bit set to logic [0]:
replaced by OCHI2 during t OC1 , as shown Figure 14 .
I OC4
I OCH1
I OCH2
I OC1
I OC2
I OCLO4
I OCLO3
I OCLO2
I OCLO1
t OC1 t OC3 t OC4 t OC5
t OC2
Xenon bit set to logic [1]:
t OC6
t OC7
Time
I OCH1
I OCH2
I OC1
I OC2
I OC3
I OCLO4
I OCLO3
I OCLO2
I OCLO1
t OC1 t OC3 t
t OC2
OC4
t OC5
t OC6
t OC7
Time
Figure 14. Over-current profile with OCHI bit set to ‘1’
I OCH1
I OCH2
I OC1
I OC2
The wire harness is protected by one of four possible
current levels in steady state, as defined in Table 18 .
Table 18. Output Steady State Selection
I OC3
I OC4
I OCLO4
I OCLO3
I OCLO2
I OCLO1
OCLO1 (D2) OCLO0 (D1)
0 0
0 1
Steady State Current
OCLO2 (default)
OCLO3
t OC1 t OC3 t
t OC5
t OC7
t OC6
Time
t OC2
OC4
Figure 13. Over-current profile depending on Xenon bit
D[7:6] bits allow to MCU to programmable bulb cooling
curve and D[5:4] bits inrush curve for selected output, as
1 0 OCLO4
1 1 OCLO1
Bit D0 (OC_mode_sel) allows to select the over-current
mode, as described Table 19 .
shown Table 16 and Table 17 .
15XS3400
Analog Integrated Circuit Device Data
Freescale Semiconductor
37
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