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参数资料
| 型号： | L9953XPTR |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 运动控制电子 |
| 英文描述： | BRUSH DC MOTOR CONTROLLER, 10 A, PDSO36 |
| 封装： | ROHS COMPLIANT, SSOP-36 |
| 文件页数： | 17/38页 |
| 文件大小： | 535K |
| 代理商： | L9953XPTR |
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Functional description of the SPI
L9953 / L9953XP
Doc ID 14278 Rev 3
4.4
Serial Data Out (DO)
The data output driver is activated by a logical low level at the CSN input and will go from
high impedance to a low or high level depending on the status bit 0 (fault condition). The first
rising edge of the CLK input after a high to low transition of the CSN pin will transfer the
content of the selected status register into the data out shift register. Each subsequent
falling edge of the CLK will shift the next bit out.
4.5
Serial clock (CLK)
The CLK input is used to synchronize the input and output serial bit streams. The data input
(DI) is sampled at the rising edge of the CLK and the data output (DO) will change with the
falling edge of the CLK signal.
4.6
Input data register
The device has two input registers. The first bit (bit 0) at the DI-input is used to select one of
the two Input Registers. All bits are first shifted into an input shift register. After the rising
edge of CSN the contents of the input shift register will be written to the selected Input Data
Register only if a frame of exact 24 data bits are detected. Depending on bit 0 the contents
of the selected status register will be transferred to DO during the current communication
frame. Bit 1-17 controls the behavior of the corresponding driver.
If bit 23 is zero, the device will go into the standby-mode. The bits 18 and 19 are used to
control the current monitor multiplexer. Bit 22 is used to reset all status bits in both status
registers. The bits in the status registers will be cleared after the current communication
frame (rising edge of CSN).
4.7
Status register
This devices uses two status registers to store and to monitor the state of the device. Bit 0 is
used as a fault bit and is a logical-NOR combination of bits 1-22 in both status registers. The
state of this bit can be polled by the microcontroller without the need of a full SPI-
communication cycle. If one of the over-current bits is set, the corresponding driver will be
disabled. If the over-current recovery bit of the output is not set the microcontroller has to
clear the over-current bit to enable the driver. If the thermal shutdown bit is set, all drivers
will go into a high impedance state. Again the microcontroller has to clear the bit to enable
the drivers.
4.8
Scan mode
The Scan Mode can be entered by rising the PWM1 input to a voltage higher than 9.5V.
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相关代理商/技术参数 |
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| L9954LXPTR | 制造商:STMicroelectronics 功能描述:Door Actuator Driver 36-Pin PowerSSO T/R 制造商:STMicroelectronics 功能描述:PTS SMARTPOWER - Tape and Reel 制造商:STMicroelectronics 功能描述:Door Actuator Driver 0.75A 1600mOhm |
| L9954TR | 功能描述:马达/运动/点火控制器和驱动器 DOOR ACTUATOR DRIVER 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 |
| L9954XP | 功能描述:马达/运动/点火控制器和驱动器 Door actuator DRVR 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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