参数资料
型号: MC35XS3400DPNAR2
厂商: Freescale Semiconductor
文件页数: 31/46页
文件大小: 0K
描述: IC SWITCH HIGH SIDE QUAD 24QFN
标准包装: 1,200
类型: 高端开关
输出数: 4
Rds(开): 35 毫欧
内部开关:
电流限制: 6A
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: 带卷 (TR)
FUNCTIONAL DEVICE OPERATION
LOGIC COMMANDS AND REGISTERS
Table 15. Current Sense Ratio Selection
Table 18. Output Steady State Selection
0
1
CRS0 (default)
CRS1
0
1
1
0
OCLO3
OCLO4
ADDRESS A 1 A 0 100 — OUTPUT OVER-CURRENT
REGISTER (OCR)
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
1 1 OCLO1
Bit D0 (OC_mode_sel) allows to select the over-current
mode, as described Table 19 .
Table 19. Over-current Mode Selection
OC_mode_s (D0) Over-current Mode
D[7:6] bits allow to MCU to programmable bulb cooling
curve and D[5:4] bits inrush curve for selected output, as
0
1
only inrush current management (default)
inrush current and bulb cooling management
shown Table 16 and Table 17 .
Table 16. Cooling and Inrush Curve Selection
BC1_s (D7) BC0_s (D6) Profile Curves Speed
ADDRESS 00101 — GLOBAL CONFIGURATION
REGISTER (GCR)
The GCR register allows the MCU to configure the device
through the SPI.
0
0
1
1
0
1
0
1
medium (default)
slow
fast
medium
Bit D8 allows the MCU to enable or disable the V DD failure
detector. A logic [1] on VDD_FAIL_en bit allows transitioning
to Fail-safe mode for V DD < V DD(FAIL).
Bit D7 allows the MCU to enable or disable the PWM
module. A logic [1] on PWM_en bit allows control of the
Table 17. Inrush Curve Selection
outputs HS[0:3] with PWMR register (the direct input states
are ignored).
OC1_s (D5)
0
0
1
OC0_s (D4)
0
1
0
Profile Curves Speed
slow (default)
fast
medium
Bit D6 (CLOCK_sel) allows to select the clock used as
reference by PWM module, as described in the following
Table 20. PWM Module Selection
1
1
very slow
PWM_en (D7) CLOCK_sel (D6)
PWM module
A logic [1] on bit D3 (OCHI_s bit) the OCHI1 level is
replaced by OCHI2 during t OC1 , as shown Figure 13 .
0
1
X
0
PWM module disabled
(default)
PWM module enabled with
external clock from IN0
1
1
PWM module enabled with
t OC1 t OC3 t
t OC5
t OC7
t OC6
t OC2
CSNS reporting
I OCH1
I OCH2
I OC1
I OC2
I OC3
I OC4
I OCLO4
I OCLO3
I OCLO2
I OCLO1
Time
OC4
Figure 13. Over-current profile with OCHI bit set to ‘1’
The wire harness is protected by one of four possible
current levels in steady state, as defined in Table 18 .
internal calibrated clock
Bits D5:D4 allow the MCU to select one of two analog
feedback on CSNS output pin, as shown in Table 21 .
Table 21. CSNS Reporting Selection
TEMP_en CSNS_en
(D5) (D4)
0 0 CSNS tri-stated (default)
X 1 current recopy of selected output (D3:2]
bits)
1 0 temperature on GND flag
Table 22. Output Current Recopy Selection
Table 18. Output Steady State Selection
CSNS1 (D3)
CSNS0 (D2)
CSNS reporting
OCLO1 (D2) OCLO0 (D1)
Steady State Current
0
0
HS0 (default)
0
0
OCLO2 (default)
0
1
HS1
35XS3400
Analog Integrated Circuit Device Data ?
Freescale Semiconductor
31
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