TMC236SLASHA datasheet(2/25 Pages) ETC2

2 / 25 page

TMC236/A DATA SHEET (V2.04 / Nov. 6th, 2006)

FEATURES ............................................................................................................................................1

PINNING.................................................................................................................................................5

PACKAGE CODES...................................................................................................................................5

PQFP44 DIMENSIONS ..........................................................................................................................6

APPLICATION CIRCUIT / BLOCK DIAGRAM .....................................................................................7

PIN FUNCTIONS.....................................................................................................................................7

LAYOUT CONSIDERATIONS ...............................................................................................................8

CONTROL VIA THE SPI INTERFACE ..................................................................................................9

SERIAL DATA WORD TRANSMITTED TO TMC236 ......................................................................................9

SERIAL DATA WORD TRANSMITTED FROM TMC236..................................................................................9

TYPICAL WINDING CURRENT VALUES .....................................................................................................10

BASE CURRENT CONTROL VIA INA AND INB IN SPI MODE......................................................................10

CONTROLLING THE POWER DOWN MODE VIA THE SPI INTERFACE ...........................................................10

OPEN LOAD DETECTION .......................................................................................................................11

STANDBY AND SHUTDOWN MODE ..........................................................................................................11

POWER SAVING ...................................................................................................................................11

PROTECTION FUNCTIONS................................................................................................................12

OVERCURRENT PROTECTION AND DIAGNOSIS........................................................................................12

OVERTEMPERATURE PROTECTION AND DIAGNOSIS ................................................................................12

OVERVOLTAGE PROTECTION AND ENN PIN BEHAVIOR ...........................................................................12

CHOPPER PRINCIPLE........................................................................................................................13

CHOPPER CYCLE / USING THE MIXED DECAY FEATURE...........................................................................13

BLANK TIME ........................................................................................................................................13

BLANK TIME SETTINGS .........................................................................................................................13

CLASSICAL NON-SPI CONTROL MODE (STAND ALONE MODE) ................................................14

PIN FUNCTIONS IN STAND ALONE MODE .................................................................................................14

INPUT SIGNALS FOR MICROSTEP CONTROL IN STAND ALONE MODE..........................................................14

CALCULATION OF THE EXTERNAL COMPONENTS......................................................................15

SENSE RESISTOR................................................................................................................................15

EXAMPLES FOR SENSE RESISTOR SETTINGS..........................................................................................15

HIGH SIDE OVERCURRENT DETECTION RESISTOR RSH ............................................................................15

MAKING THE CIRCUIT SHORT CIRCUIT PROOF.........................................................................................16

OSCILLATOR CAPACITOR .....................................................................................................................17

TABLE OF OSCILLATOR FREQUENCIES ...................................................................................................17

PULL-UP RESISTORS ON UNUSED INPUTS ..............................................................................................17

SLOPE CONTROL RESISTOR ................................................................................................................18

EXAMPLE FOR SLOPE SETTINGS ...........................................................................................................18

ABSOLUTE MAXIMUM RATINGS......................................................................................................19

ELECTRICAL CHARACTERISTICS ...................................................................................................19

OPERATIONAL RANGE .........................................................................................................................19

DC CHARACTERISTICS ........................................................................................................................20

AC CHARACTERISTICS ........................................................................................................................21

THERMAL PROTECTION (1) ..................................................................................................................21

THERMAL CHARACTERISTICS ...............................................................................................................22

TYPICAL POWER DISSIPATION AT HIGH LOAD / HIGH TEMPERATURE ........................................................22

SPI INTERFACE TIMING.....................................................................................................................23

PROPAGATION TIMES ..........................................................................................................................23

USING THE SPI INTERFACE ..................................................................................................................23

TMC236/A bảng dữ liệu(PDF) 2 Page - List of Unclassifed Manufacturers

TMC236/A bảng dữ liệu(HTML) 2 Page - List of Unclassifed Manufacturers

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

bảng dữ liệu tải về

Link URL