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L99DZ120 Datasheet(PDF) 85 Page - STMicroelectronics

Part # L99DZ120
Description  Automotive door actuator driver with embedded LIN
PDF  162 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L99DZ120 Datasheet(HTML) 85 Page - STMicroelectronics

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DocID029145 Rev 4
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L99DZ120
Application information
161
Figure 36. Overcurrent recovery mode
4.23
H-bridge control
The PWMH and DIRH inputs control the drivers of the external H-bridge transistors. In
single Motor mode the motor direction can be chosen with the direction input (DIRH), the
duty cycle(a) and frequency with the PWMH input (single mode). With the SPI bits SD (CR
10) and SDS (CR 10) four different slow-decay modes (via drivers and via diode) can be
selected using the high-side or the low-side transistors. Unconnected inputs are defined by
internal pull-down current.
a. If tccp is programmed to 4 µs and frequency to 50 kHz, max duty cycle achievable is 92%.



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