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TPIC2603DW Datasheet(PDF) 7 Page - Texas Instruments |
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TPIC2603DW Datasheet(HTML) 7 Page - Texas Instruments |
7 / 17 page TPIC2603 6-CHANNEL SERIAL INTERFACE LOW-SIDE DRIVER SLIS056A – FEBRUARY 1995 – REVISED MARCH 1996 7 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 PRINCIPLES OF OPERATION serial interface (continued) Fault isolation data for each channel and global over-temperature status is transferred to the control device using the serial interface. Fault status for the TPIC2603 is captured as CS transits low. The fault interface monitors the SDI terminal and exclusively ORs the respective input control bit with the corresponding fault information bit stored in the fault register. Each exclusive ORed fault bit is transferred out the SDO terminal on the rising edge of the SCLK. Serial data can be transferred in 8-bit or 16-bit words as illustrated in Figure 4, with fault data appearing in the first 8-bits of serial output data. The CS must be transited high after the serial transfer has completely latched the new control data into the output control buffer and re-enable fault reporting on the device (see Figures 3 and 4). NA = Unused OT = Over-temperature fault bit FLT5 = Shorted or open-load fault on channel 5 FLT4 = Shorted or open-load fault on channel 4 FLT3 = Shorted or open-load fault on channel 3 FLT2 = Shorted or open-load fault on channel 2 FLT1 = Shorted or open-load fault on channel 1 FLT0 = Shorted or open-load fault on channel 0 1 234 5 6 7 8 SCLK CS SDO 3-STATE FLT0 FLT1 FLT2 FLT3 FLT4 FLT5 OT N/A 3-STATE Bit1 Bit2 Bit3 Bit4 Bit5 Bit6 Bit7 Bit0 NOTE A: MSB is the first bit transferred. Figure 3. Serial Output Control |
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