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TMC2208-EVAL Datasheet(PDF) 8 Page - TRINAMIC Motion Control GmbH & Co. KG. |
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TMC2208-EVAL Datasheet(HTML) 8 Page - TRINAMIC Motion Control GmbH & Co. KG. |
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8 / 81 page  TMC220X, TMC222X DATASHEET (Rev. 1.02 / 2017-MAY-16) 8 www.trinamic.com 2 Pin Assignments The TMC22xx family comes in a number of package variants in order to fit different footprints. Please check for availability. 2.1 Package Outline TMC2208 OB2 ENN GND CPO - STEP VREF GND DIR - OA2 CPI VCP VCC_IO 22 23 24 25 26 27 28 14 13 12 11 10 9 8 TMC2208 QFN28 Pad=GND © B. Dwersteg, TRINAMIC Figure 2.1 TMC2208 Pinning Top View – type: QFN28, 5x5mm², 0.5mm pitch 2.2 Signal Descriptions TMC2208 Pin Number Type Function OB2 1 Motor coil B output 2 ENN 2 DI Enable not input. The power stage becomes switched off (all motor outputs floating) when this pin becomes driven to a high level. GND 3, 18 GND. Connect to GND plane near pin. CPO 4 Charge pump capacitor output. CPI 5 Charge pump capacitor input. Tie to CPO using 22nF 50V capacitor. VCP 6 Charge pump voltage. Tie to VS using 100nF capacitor. N.C. 7, 20, 25 Unused pin, leave open or connect to GND for compatibility to future versions. 5VOUT 8 Output of internal 5V regulator. Attach 2.2µF to 4.7µF ceramic capacitor to GND near to pin for best performance. Provide the shortest possible loop to the GND pad. MS1 9 DI (pd) Microstep resolution configuration (internal pull down resistors) MS2, MS1: 00: 1/8, 01: 1/2, 10: 1/4 11: 1/16 MS2 10 DI (pd) DIAG 11 DO Diagnostic output. Hi level upon driver error. Reset by ENN=high. INDEX 12 DO Configurable index output. Provides index pulse. CLK 13 DI CLK input. Tie to GND using short wire for internal clock or supply external clock. PDN_UART 14 DIO Power down not control input (low = automatic standstill current reduction). Optional UART Input/Output. Power down function can be disabled in UART mode. VCC_IO 15 3.3V to 5V IO supply voltage for all digital pins. |
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