参数资料
型号: MM908E621ACDWBR2
厂商: Freescale Semiconductor
文件页数: 35/60页
文件大小: 0K
描述: IC SW QUAD HB/TRPL HISID 54-SOIC
标准包装: 1,000
应用: 自动镜像控制
核心处理器: HC08
程序存储器类型: 闪存(16 kB)
控制器系列: 908E
RAM 容量: 512 x 8
接口: SCI,SPI
输入/输出数: 12
电源电压: 9 V ~ 16 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 54-BSSOP(0.295",7.50mm 宽)裸露焊盘
包装: 带卷 (TR)
供应商设备封装: 54-SOICW-EP
Analog Integrated Circuit Device Data
40
Freescale Semiconductor
908E621
FUNCTIONAL DEVICE OPERATION
OPERATIONAL MODES
Figure 24. Inrush Current Limitation on HS Outputs
High Side Current Recopy
Each High Side has an additional sense output to allow a
current recopy feature. This sense source is internally
connected to a shunt resistor. The drop voltage is amplified
and switched to the Analog Multiplexer.
Switchable HVDD Outputs
The HVDD pin is a switchable 5.0 V output pin. It can be
used for driving external circuitry, which requires a 5.0 V
voltage. The output is enabled with the PSON bit in the
System Control register, and can be switched on / off with the
HVDD_ON bit in the High Side Out register. Low or high
voltage conditions (LVIF / HVIF) will have no influence on this
circuitry.
HVDD Over-temperature Protection
The output is protected against over-temperature
conditions.
HVDD Over-current Protection
The HVDD output is protected against over-current. In
case the current reaches the over-current limit, the output
current will be limited, and the HVDDOCF over-current flag in
the System Status register is set.
HIGH SIDE OUT REGISTER (HSOUT)
HVDD-ON — HVDD On Bit
This read/write bit enables the HVDD output.
Reset clears HVDDON bit.
1 = HVDD enabled
0 = HVDD disabled
HSxON — High Side on/off Bits
These read/write bits turn on the High Side Fet’s
permanently. Reset clears the HSxON bits.
1 = High Side x is turned on
0 = High Side x is turned off
HS Current
HS Over-current Shutdown Threshold
PWM Pin
t
Register Name and Address: HSOUT - $02
Bit7
6
5
4
3
2
1
Bit0
Read
HVDD
ON
0
HS3P
WM
HS2P
WM
HS1P
WM
HS3O
N
HS2O
N
HS1O
N
Write
Reset
0
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