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参数资料
| 型号： | L9953LXP |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 消费家电 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PDSO36 |
| 封装： | ROHS COMPLAINT, SSOP-36 |
| 文件页数： | 15/35页 |
| 文件大小： | 505K |
| 代理商： | L9953LXP |
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Application information
L9953LXP
Doc ID 16185 Rev 1
3.10
Current monitor
The current monitor output sources a current image at the current monitor output which has
a fixed ratio (1/10000) of the instantaneous current of the selected highside driver. The bits
18 and 19 of the input data register 0 control which of the outputs OUT1, OUT4, OUT5, and
OUT8 will be multiplexed to the current monitor output. The current monitor output allows a
more precise analysis of the actual state of the load rather than the detection of an open- or
overload condition. For example this can be used to detect the motor state (starting, free-
running, stalled). Moreover, it is possible to regulate the power of the defroster more precise
by measuring the load current. The current monitor output is bidirectional (c.f. PWM inputs).
3.11
PWM inputs
Each driver has a corresponding PWM enable bit which can be programmed by the SPI
interface. If the PWM enable bit in input data register 1 is set, the output is controlled by the
logically AND-combination of the PWM signal and the output control bit in input data
register 0. The outputs OUT1-OUT6 and OUT8 are controlled by the PWM1 input and the
output OUT7 is controlled by the bidirectional input CM/PMW2. For example, the two PWM
inputs can be used to dim two lamps independently by external PWM signals.
3.12
Cross-current protection
The six half-bridges of the device are cross-current protected by an internal delay time. If
one driver (LS or HS) is turned-off the activation of the other driver of the same half bridge
will be automatically delayed by the cross-current protection time. After the cross-current
protection time is expired the slew-rate limited switch-off phase of the driver will be changed
to a fast turn-off phase and the opposite driver is turned-on with slew-rate limitation. Due to
this behavior it is always guaranteed that the previously activated driver is totally turned-off
before the opposite driver will start to conduct.
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相关代理商/技术参数 |
参数描述 |
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| L9953LXPTR | 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 |
| L9953TR | 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 |
| L9953XP | 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 |
| L9953XPTR | 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 |
| L9954 | 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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