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TMC2100-TA Datasheet(PDF) 4 Page - TRINAMIC Motion Control GmbH & Co. KG. |
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TMC2100-TA Datasheet(HTML) 4 Page - TRINAMIC Motion Control GmbH & Co. KG. |
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4 / 48 page  TMC2100 DATASHEET (Rev. 1.07 / 2017-MAY-15) 4 www.trinamic.com 1 Key Concepts The TMC2100 is easy to use. It can be configured by seven hardware pins. CPU interaction is not necessary. The TMC2100 positions the motor based on step and direction signals and the integrated microPlyer automatically smoothens motion. Basic standby current control can be done by the TMC2100. Optional feedback signals allow error detection and synchronization. Optionally, current scaling is possible by providing an analog reference current IREF. A CPU for configuration, motion control, and diagnostics can be connected, but this is not basically needed to drive the motor. Status out (open drain) Half Bridge 1 Half Bridge 2 +VM VS current comparator 2 phase stepper motor N S Stepper driver Protection & diagnostics sine table 4*256 entry DAC x step multiplier microPlyer OA1 OA2 BRA spreadCycle & stealthChop Chopper VCC_IO TMC 2100 Standalone Stepper Motor Driver Configuration interface with TRISTATE detection CFG0 CFG1 CFG3 CFG2 sprea dCycl e & stealt hCho p moto r driv er Half Bridge 1 Half Bridge 2 VS current comparator DAC OB1 OB2 BRB CLK oscillator/ selector DIAG0 CLK_IN Interf ace DIAG1 +VIO DRV_ENN GNDP GNDP F = 60ns spike filter RS=0R15 allows for maximum coil current; Tie BRA and BRB to GND for internal current sensing TRISTATE configuration (GND, VCC_IO or open) opt. ext. clock 10-16MHz 3.3V or 5V I/O voltage 100n 100n 100n Index pulse step & dir input RS RS ISENSE ISENSE ISENSE ISENSE +VM DAC Reference IREF IREF IREF TG TG TG TG PDD PMD TG= toggle with 166K resistor between VCC and GND to detect open pin PDD=100k pulldown PMD=50k to VCC/2 optional current scaling Standstill current reduction RREF 5VOUT Optional for internal current sensing. RREF=9K1 allows for maximum coil current. 5V Voltage regulator charge pump CPO CPI VCP 22n 100n +VM 5VOUT VSA 4.7µ 100n 2R2 470n 2R2 and 470n are optional filtering components for best chopper precision VCC Driver error CFG4 TG CFG5 TG DRV_ENN_CFG6 TG CFG6 CFG3 Opt. driver enable input CFG0 CFG4 CFG5 CFG1 CFG2 CFG1 CFG2 CFG1 CFG2 B.Dwersteg, © TRINAMIC 2014 Figure 1.1 TMC2100 standalone driver application diagram The TMC2100 implements advanced features which are exclusive to TRINAMIC products. These features contribute toward greater precision and smoother motion in many stepper motor applications. Particularly, the TMC2100 provides special chopper algorithms in order to reduce engine noise and react extremely fast to changes in velocity and motor load. stealthChop™ is a voltage chopper based principle. It guarantees that the motor is absolutely quiet in standstill and in slow motion, except for noise generated by ball bearings. The extremely smooth motion is beneficial for many applications. spreadCycle™ offers smooth operation and great power efficiency over a wide range of speed and load. The spreadCycle chopper scheme automatically integrates a fast decay cycle and guarantees smooth zero crossing performance. microPlyer™ microstep interpolator for obtaining increased smoothness of microstepping. |
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