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TMC4210 Datasheet(PDF) 40 Page - TRINAMIC Motion Control GmbH & Co. KG. |
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TMC4210 Datasheet(HTML) 40 Page - TRINAMIC Motion Control GmbH & Co. KG. |
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40 / 48 page  TMC4210 DATASHEET (Rev. 1.03 / 2015-JUN-03) 40 www.trinamic.com 10 On-Chip Voltage Regulator The on-chip voltage regulator delivers a 3.3 V supply for the chip core. The TMC4210 provides two operational modes to operate in 5 V or in 3.3 V environments. For both operational modes one resp. two external capacitors are required. Please keep all connections as short as possible! OPERATIONAL MODE Operational mode Necessary additional hardware 5 V - An external 100nF ceramic capacitor (CBLOCK) has to be connected between pin V5 and ground. - An external 470nF ceramic capacitor has to be connected between the V33 pin and ground. 3.3 V An external 100nF ceramic capacitor is necessary only between pin V33 and ground. CHARACTERISTICS OF THE ON-CHIP VOLTAGE REGULATOR Symbol Parameter Conditions Min Typ Max Unit VDD5REG Supply voltage vdd5 5 V Operational Mode 4.5 5 5.5 V CBLOCK Block capacitor 5 V Operational Mode, x7r ceramic capacitor 100 nF VDD3REG Supply voltage vdd3 3.3 V Operational Mode 2.9 3.3 3.6 V ICCNLREG Current consumption No load 50 100 µA tSREG Startup time No external capacitor connected 20 µs tSREGC Startup time C_load = 470 nF 150 µs TDRFT Temperature drift 300 ppm / °C VRIPPLE Ripple on vdd3 With ripple over 50 mV the input thresholds may differ from that specified in the data sheet 100 mV CREG External capacitor Use x7r ceramic capacitors on pin 33. Using an external capacitor with capacity other than typical, the ripple should be measured on pin v33 to be sure that requirements are satisfied. 33 470 nF COPT Optional capacitor Optional parallel capacitor for additional reduction of high frequency ripple, c0g ceramic, unnecessary in most cases 470 pF 470 nF * + 5 V 100 nF * Copt GND and TEST have to be connected to ground as close as possible to the chip. * Capacitors should be placed as close as possible to the chip. DIR_OUT STEP_OUT REF_R GP_IN REF_L TEST GND SDI_ C nSCS_ C SCK _ C nINT_SDO_C CLK V5 V 33 TMC4210 +3.3V 100 nF * 3.3V Operation (CMOS) In most cases the optional capacitor Copt is not necessary. 5V Operation (TTL) DIR_OUT STEP_OUT REF_R GP_IN REF_L TEST GND SDI_ C nSCS_ C SCK _ C nINT_SDO_C CLK V5 V 33 TMC4210 Figure 10.1 3 V operation (CMOS) vs. 5 V operation (TTL) |
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