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L9779WD-SPI Datasheet(PDF) 76 Page - STMicroelectronics |
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L9779WD-SPI Datasheet(HTML) 76 Page - STMicroelectronics |
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76 / 141 page  Functional description L9779WD-SPI 76/141 DocID027721 Rev 2 6.11.4 Diagnosis of CPS OUTA, B, C, D when configured as single low side power stages For the low side the diagnosis is the same as LSd (see Section 6.9). Each channel locally detects and writes its own fault or no-fault condition (codified on 2 bit according to Table 27: Fault encoding condition). Short circuit to battery or overcurrent for all the outputs during ON condition. Open load or short to GND during OFF condition. The faults are latched and reset at every Read Diag operation. In OFF condition the first fault detected is latched and can be overwritten only by the ON condition fault. OUT21…28 Tmask_step - Test by scan -25% 1 +25% ms Tsettle - For information only; No tested 100 - - ms T_PWM Operating frequency For information only; No tested 50 - - µs Table 34. Stepper configuration electrical characteristics (continued) Pin Symbol Parameter Test condition Min Typ Max Unit |
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