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| 型号： | MC33912BACR2 |
| 厂商： | Freescale Semiconductor |
| 文件页数： | 77/95页 |
| 文件大小： | 0K |
| 描述： | IC SYSTEM BASIS CHIP 32LQFP |
| 标准包装： | 2,000 |
| 应用： | 系统基础芯片 |
| 电流 - 电源： | 4.5mA |
| 电源电压： | 5.5 V ~ 27 V |
| 工作温度： | -40°C ~ 125°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： | 带卷 (TR) |
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MC33912BAC / MC34912BAC
FUNCTIONAL DEVICE OPERATIONS
OPERATIONAL MODES
HVSE
Interrupt
Control
Module
PWMHSx
V DD
V DD
VS2
PWMIN
MOD1:2
HSx
HSxOP
HSxCL
Control
on/off
Status
High Side - Driver
charge pump
open load detection
current limitation
Over-temperture shutdown (interrupt maskable)
high voltage shutdown (maskable)
HSx
Wakeup
Module
Figure 40. High Side Drivers HS1 and HS2
Open Load Detection
Each high side driver signals an open load condition if the
current through the high side is below the open load current
threshold.
The open load condition is indicated with the bits HS1OP and
HS2OP in the High Side Status Register (HSSR).
Current Limitation
Each high side driver has an output current limitation. In
combination with the over-temperature shutdown the high-
side drivers are protected against over-current and short-
circuit failures.
When the driver operates in the current limitation area, it is
indicated with the bits HS1CL and HS2CL in the HSSR.
Note: If the driver is operating in current limitation mode,
excessive power might be dissipated.
Over-temperature Protection (HS Interrupt)
Both high side drivers are protected against over-
temperature. In case of an over-temperature condition both
high side drivers are shut down and the event is latched in the
Interrupt Control Module. The shutdown is indicated as HS
Interrupt in the Interrupt Source Register (ISR).
A thermal shutdown of the high side drivers is indicated by
setting all HSxOP and HSxCL bits simultaneously.
If the bit HSM is set in the Interrupt Mask Register (IMR), then
an interrupt (IRQ) is generated.
A write to the High Side Control Register (HSCR), when the
over-temperature condition is gone, will re-enable the high
side drivers.
High-voltage Shutdown
In case of a high voltage condition and if the high voltage
shutdown is enabled (bit HVSE in the Mode Control Register
(MCR) is set) both high side drivers are shut down.
A write to the High Side Control Register (HSCR), when the
high voltage condition is gone, will re-enable the high side
drivers.
Sleep And Stop Mode
The high side drivers can be enabled to operate in Sleep and
33912
Analog Integrated Circuit Device Data ?
Freescale Semiconductor
77
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| MC33926PNB | 功能描述:马达/运动/点火控制器和驱动器 THROTTLE CTRL H-BRIDGE RoHS:否 制造商:STMicroelectronics 产品:Stepper Motor Controllers / Drivers 类型:2 Phase Stepper Motor Driver 工作电源电压:8 V to 45 V 电源电流:0.5 mA 工作温度:- 25 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:HTSSOP-28 封装:Tube |
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