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L9960 bảng dữ liệu(PDF) 33 Page - STMicroelectronics

tên linh kiện L9960
Giải thích chi tiết về linh kiện  Automotive Single/Dual H-Bridge, SPI programmable DC Brushed Motor Driver
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L9960 bảng dữ liệu(HTML) 33 Page - STMicroelectronics

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DS11115 Rev 10
33/95
L9960, L9960T
Functional description
94
4.5
Digital input controls
All the digital inputs and outputs of the L9960 must be compatible with 3.3V and 5V CMOS
technologies, but must also withstand up to 19V.
4.5.1
Bridge functional modes
Three functional modes are available on L9960, listed below:
Normal mode (via PWM / DIR)
VVL
IN1 / IN2
Normal mode
L9960 is in Normal Mode when the PWM / DIR control interface is selected.
In the below example it is showed the case of LS active freewheeling.
Figure 14. Bridge STATE diagram
VVL mode
VVL mode is programmed through a dedicated SPI command “VVL mode” (configuration
3). This mode is used to drive valves in Forward or Reverse mode.
PWM
Forward
Free
Wheeling
Free
Wheeling
Forward
DIR
BRIDGE
STATE
DIS
NDIS
Reverse
HS0 command
LS0 command
HS1 command
LS1 command
GAPGPS02320



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