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参数资料
| 型号： | MC35XS3500PNA |
| 厂商： | Freescale Semiconductor |
| 文件页数： | 34/45页 |
| 文件大小： | 0K |
| 描述： | IC SWITCH HIGHSIDE 24PQFN |
| 标准包装： | 168 |
| 类型： | 高端开关 |
| 输出数： | 5 |
| Rds（开）： | * |
| 内部开关： | 是 |
| 电流限制： | 9A |
| 输入电压： | 7 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 |
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FUNCTIONAL DEVICE OPERATION
LOGIC COMMANDS AND REGISTERS
(external_ON=0)
(OT=1) or
(OCHI1=1)
OFF-latched
State
(OT=1)
(external_ON=0)
(OT=1)
(external_ON=1)
(t>t OCHI1 ) and (autorestart=0)
(t>t OCHI2 ) and (autorestart=0)
OCHI1
out: external
OFF
out: OFF
autorestart=0
(UV=1) and
(external_on=1)
OCHI2
out: external
(t>t OCHI1_AUTO ) and (autorestart=1)
OCLO
out: external
(t>t autorestart ) and (UV*=0)
(UV=1) or (OCHI2=1)
(UV=1)
(external_ON=0)
OFF Autorestart
out: OFF
autorestart=1
(OCLO=1)
(UV=1)
or
(external_ON=0)
1.4 sec min
external
external_ON
external: IGN, Flasher, Stop
external_ON: IGN_ON, Flasher_ON, Stop_ON
Note: * See Autorestart strategy chapter.
Figure 14. Faults Management in Fail Mode (for OUT[1:5] only)
DIAGNOSIS
Open Load
The 35XS3500 provides open load detection for each
output (OUT1:OUT5 ) when the output pin is in the ON state.
Open load detection levels can be chosen by the SPI to
detect a standard bulb or LEDs (OLLED bit). Open load for
LEDs only is detected during each regular switch-off state or
periodically each t OLLED (fully-on, D[6:0] = 7F) . To detect
OLLED in fully on state, the output must be on at least t OLLED.
When an open load has been detected, the output stays ON.
To delatch the diagnosis, the condition should be removed
and a SPI read operation is needed (OL bit). In case of a
Power on Reset on VBAT, the fault will be reset.
Current Sense
The 35XS3500 diagnosis for load current (OUT1:6) is
done using the current sense (CSNS) pin connected to an
external resistor. The CSNS resistance value is defined in
function to VCC voltage value. It is recommended to use
resistor 500 ? < R CSNS < 5.0 k ? . Typical value is 1.0 k ? for
5.0 V application. The routing of the current sense sources is
SPI programmable (MUX[2,0] bits).
The current recopy feature for OUT1:5 is disabled during
a high over-current shutdown phase (t 2 ) and is only enabled
during low over-current shutdown thresholds. The current
recopy output delivers current only during ON time of the
output switch without overshoot (aperiodic settling).
The current recopy is not active in Fail mode.
35XS3500
Analog Integrated Circuit Device Data ?
34
Freescale Semiconductor
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