TMC236/A/B DATA SHEET (V2.10 / 2016-Jun-06)

2

Copyright © 2004, TRINAMIC Motion Control GmbH & Co KG

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

ADAPTING THE SINE WAVE FOR SMOOTH MOTOR OPERATION .................................................................. 14

BLANK TIME ......................................................................................................................................... 14

BLANK TIME SETTINGS .......................................................................................................................... 14

CLASSICAL NON-SPI CONTROL MODE (STAND ALONE MODE) .................................................. 15

PIN FUNCTIONS IN STAND ALONE MODE.................................................................................................. 15

INPUT SIGNALS FOR MICROSTEP CONTROL IN STAND ALONE MODE .......................................................... 15

CALCULATION OF THE EXTERNAL COMPONENTS ....................................................................... 16

SENSE RESISTOR................................................................................................................................. 16

EXAMPLES FOR SENSE RESISTOR SETTINGS .......................................................................................... 16

HIGH SIDE OVERCURRENT DETECTION RESISTOR RSH ............................................................................ 16

MAKING THE CIRCUIT SHORT CIRCUIT PROOF ......................................................................................... 17

OSCILLATOR CAPACITOR ...................................................................................................................... 18

TABLE OF OSCILLATOR FREQUENCIES.................................................................................................... 18

PULL-UP RESISTORS ON UNUSED INPUTS............................................................................................... 18

POWER SUPPLY SEQUENCING CONSIDERATIONS .................................................................................... 18

SLOPE CONTROL RESISTOR ................................................................................................................. 19

EXAMPLE FOR SLOPE SETTINGS ............................................................................................................ 19

ABSOLUTE MAXIMUM RATINGS ....................................................................................................... 20

ELECTRICAL CHARACTERISTICS..................................................................................................... 20

OPERATIONAL RANGE .......................................................................................................................... 20

DC CHARACTERISTICS ......................................................................................................................... 21

AC CHARACTERISTICS ......................................................................................................................... 22

THERMAL PROTECTION (1) ................................................................................................................... 23

THERMAL CHARACTERISTICS ................................................................................................................ 23

TYPICAL POWER DISSIPATION AT HIGH LOAD / HIGH TEMPERATURE ........................................................ 23

SPI INTERFACE TIMING...................................................................................................................... 24