参数资料
型号: MC35XS3400DPNAR2
厂商: Freescale Semiconductor
文件页数: 22/46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
OPERATIONAL MODES
FUNCTIONAL DEVICE OPERATION
SPI PROTOCOL DESCRIPTION
The SPI interface has a full duplex, three-wire
synchronous data transfer with four I/O lines associated with
it: Serial Input (SI), Serial Output (SO), Serial Clock (SCLK),
and Chip Select ( CS ).
The SI / SO pins of the 35XS3400 follow a first-in first-out
(D15 to D0) protocol, with both input and output words
transferring the most significant bit (MSB) first. All inputs are
compatible with 5.0 V or 3.3 V CMOS logic levels.
CSB
SCLK
CS
SI
D15
D14
D13
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
SO
OD15 OD14 OD13 OD12 OD11 OD10 OD9
OD8
OD7
OD6
OD5
OD4
OD3
OD2
OD1 OD0
Notes 1. RST is a logic [1] state during the above operation.
D15 : in logic H to most above ordered
DO, D1, : D2, ... , and D15 to the the 16 bits of entry of and data the LUX IC out of
NOTES: 1. 2. RSTB is D0 a relate state the during the recent operation. entry of data into the device.
2. 3. OD15 OD0 relate relate to first most recent ordered fault program status into data device. the device.
Figure 9. Single 16-Bit Word SPI Communication
OPERATIONAL MODES
The 35XS3400 has four operating modes: Sleep, Normal,
Fail-safe and Fault. Table 6 and Figure 11 summarize details
contained in succeeding paragraphs.
The Figure 10 describes an internal signal called IN_ON[x]
? fault = OC[0:3] or OT[0:3] or SC[0:3] or UV ?
( UV ) or ( OV and OV_dis ).
Table 6. 35XS3400 Operating Modes
depending on IN[x] input.
Mode
Sleep
wake-up
0
fail
x
faul
t
x
Comments
Device is in Sleep mode. All
IN[x]
IN_ON[x]
t IN
Normal
Fail-safe
1
1
0
1
0
0
outputs are OFF.
Device is currently in Normal
mode. Watchdog is active if
enabled.
Device is currently in Fail-safe
mode due to watchdog
Figure 10. IN_ON[x] internal signal
timeout or V DD Failure
conditions. The output states
The 35XS3400 transits to operating modes according to
the following signals:
? wake-up = RST or WAKE or IN_ON[0] or IN_ON[1] or
IN_ON[2] or IN_ON[3],
? fail = (V DD Failure and VDD_FAIL_en) or ( Watchdog
time-out and FSI input not shorted to ground ),
Fault
1
X
1
depend on the corresponding
input in case FSI is open.
Device is currently in Fault
mode. The faulted output(s) is
(are) OFF. The safe autoretry
circuitry is active to turn-on
again the output(s).
x = Don’t care.
35XS3400
Analog Integrated Circuit Device Data ?
22
Freescale Semiconductor
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