参数资料
型号: MC34912BAC
厂商: Freescale Semiconductor
文件页数: 33/95页
文件大小: 0K
描述: IC SYSTEM BASIS CHIP LIN 32-LQFP
标准包装: 250
应用: 系统基础芯片
电流 - 电源: 4.5mA
电源电压: 5.5 V ~ 18 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 32-LQFP
供应商设备封装: 32-LQFP(7x7)
包装: 托盘
MC33912G5AC / MC34912G5AC
FUNCTIONAL DEVICE OPERATIONS
OPERATIONAL MODES
TEMPERATURE SENSE GAIN
The analog multiplexer can be configured via SPI to allow the
ADOUT0 pin to deliver the internal junction temperature of
The graph below illustrates the internal chip temp sense
obtained per characterization at 3 temperatures with 3
different lots and 30 samples.
the device.
Temperature Sense Analog Output Voltage
5
4.5
4
3.5
3
2.5
2
-50
0
50
100
150
Temperature (°C)
Figure 16. Temperature Sense Gain
HIGH SIDE OUTPUT PINS HS1 AND HS2
These outputs are two high side drivers intended to drive
small resistive loads or LEDs incorporating the following
features:
? PWM capability (software maskable)
? Open load detection
? Current limitation
? Over-temperature shutdown (with maskable interrupt)
? High-voltage shutdown (software maskable)
? Cyclic sense
The high side switches are controlled by the bits HS1:2 in the
High Side Control Register (HSCR).
PWM Capability (direct access)
Each high side driver offers additional (to the SPI control)
direct control via the PWMIN pin.
If both the bits HS1 and PWMHS1 are set in the High Side
Control Register (HSCR), then the HS1 driver is turned on if
the PWMIN pin is high and turned of if the PWMIN pin is low.
This applies to HS2 configuring HS2 and PWMHS2 bits.
33912
Analog Integrated Circuit Device Data ?
Freescale Semiconductor
33
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