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L9960 Datasheet(PDF) 48 Page - STMicroelectronics |
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L9960 Datasheet(HTML) 48 Page - STMicroelectronics |
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48 / 95 page  Functional description L9960, L9960T 48/95 DS11115 Rev 10 Figure 22. Current limitation schemes Note: See also Figure 21: Slew rate switching strategy. The high threshold "Ilim_H" of the current limit is selectable by SPI through the bits called "CL[1:0]". Four current limits are available to fulfill the transient current requirements of the application. The default value is set to Range 1. The low threshold "Ilim_L" is based on the high threshold (Ilim_L = Ilim_H – 0.5 (TYP)). ILoad Ilim_H Ilim_L MOS PWM ILoad Ilim_H Ilim_L MOS PWM Fpwm = 1kHz --> MOS switching period is determined by current limitation conditions Tdiag2 Toffmin Tdiag2 Toffmin Tliml Tliml Tdiag2 time Fpwm = 10 kHz -> MOS switching period corresponds to PWM switching period Tdiag2 Toffmin time time GAPGPS02340 |
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