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L9958 Datasheet(PDF) 5 Page - STMicroelectronics

Part # L9958
Description  Low RDSON SPI controlled H-Bridge
Download  38 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L9958 Datasheet(HTML) 5 Page - STMicroelectronics

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L9958
List of figures
Doc ID 17269 Rev 5
5/38
List of figures
Figure 1.
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Figure 2.
PowerSO-20 pin connection (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Figure 3.
PowerSO16 pin connection (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Figure 4.
PowerSSO24 pin connection (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Figure 5.
H-Bridge configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Figure 6.
SPI protocol structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Figure 7.
FSI bit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Figure 8.
Daisy chain topology. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Figure 9.
SPI timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Figure 10.
SPI zero clock communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Figure 11.
Current limitation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Figure 12.
Temperature dependent current regulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Figure 13.
Current regulation with different loads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Figure 14.
Slew rate switching strategy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Figure 15.
Diagnostics for SCB / SCOL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Figure 16.
Open load in on state - Low-side current recirculation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Figure 17.
Battery voltage monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Figure 18.
Off-state detection scheme . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Figure 19.
Open load detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Figure 20.
Off-state diagnostic principle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Figure 21.
Thermal impedance (junction-ambient) of power packages . . . . . . . . . . . . . . . . . . . . . . . . 26
Figure 22.
Application circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Figure 23.
PowerSO-20 mechanical data and package dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Figure 24.
PowerSO16 mechanical data and package dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Figure 25.
PowerSSO24 mechanical data and package dimensions . . . . . . . . . . . . . . . . . . . . . . . . . 36


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