Datasheet Stepping Motor Driver series Micro step 36V Stepping Motor Drivers BD63525AEFV General Description Major Characteristics BD63525AEFV series are stepping motor drivers of Range of power supply voltage 8 28 V 1/16 micro step(Sixteenth step) drive. As for its basic Rated output current 2.5 A function, it is a low power consumption bipolar PWM Rated output current (peak) 3.0 A constant current-drive driver with power supply rated Range of operating temperature -25+85 voltage of 36V and rated output current (DC) of 2.5A. Output ON resistance (total of upper 0.35 (Typ) The input interface is CLK-IN type. and lower resistors) There are step modes of Full step & Half step, Quarter step, Sixteenth step mode by internal DAC (D-A Package W(Typ) x D(Typ)x H(Max) converter), and for current decay mode, the ratio of HTSSOP-B28 9.70mm x 6.40mm x 1.00mm FAST DECAY & SLOW DECAY can be freely set, so the optimum control conditions for every motor can be realized. In addition, being able to drive with one system of power supply makes contribution to the set designs getting easy. Features 1) Single power supply input (rated voltage of 36V) 2) Rated output current:(DC) 2.5A 3) Low ON resistance DMOS output 4) CLK-IN drive mode 5) PWM constant current control (other oscillation) 6) Built-in spike noise cancel function (external noise filter is unnecessary) Basic application circuit 7) Full step, Half step, Quarter step, Sixteenth step drive GND 9 8) Timing free for changing step modes 9) Current decay mode switching function (linearly 15 CLK 14 PS variable FAST/SLOW DECAY ratio) CW CCW 16 10) Normal rotation & reverse rotation switching 18 MODE0 function MODE1 19 11) Power save function 20 ENABLE 12) Built-in logic input pull-down resistor 13) Power-on reset function VCC1 7 14) Thermal shutdown circuit (TSD) VREF 13 OUT1A 15) Over current protection circuit (OCP) 5 16) Under voltage lock out circuit (UVLO) 2 OUT1B 17) Over voltage lock out ci 3 RNF1 rcuit (OVLO) 4 18) Ghost Supply Prevention (protects against RNF1S malfunction when power supply is disconnected) VCC2 22 19) Adjacent pins short protection OUT2A 20) Inverted mounting protection CR 24 10 21) Microminiature, ultra-thin and high heat-radiation 27 OUT2B (exposed metal type) HTSSOP-B28 package 26 RNF2 MTH 12 25 Application RNF2S TEST PPC, multi-function printer, laser beam printer, and 17 GND 1 ink-jet printer Monitoring camera and WEB camera Sewing machine Figure 1. BD63525AEFV application circuit diagram Photo printer, FAX, scanner and mini printer Toy and robot Product structuresilicon monolithic integrated circuit It is not the radiation-proof design for this product. www .rohm.com TSZ02201-0P2P0B701520-1-2 2016 ROHM Co., Ltd. All rights reserved. 1/23 TSZ2211114001 12.Jul.2017 Rev.002 BD63525AEFV Terminals Configuration Diagram 28 GND 1 NC TSD OCP 15 CLK GND 16 9 2 27 OUT2B CW CCW OVLO OUT1B UVLO 18 Translator MODE0 19 RESET MODE1 14 PS RNF1 3 26 RNF2 20 ENABLE RNF1S 4 25 RNF2S VREF 13 4bit DAC OUT1A 5 24 OUT2A VCC1 7 NC 6 23 NC OUT1A 5 RNF1S 2 OUT1B VCC1 7 22 VCC2 3 RNF1 RNF2S 4 RNF1S 21 8 NC NC Blank time PWM control VCC2 22 GND 20 ENABLE 9 OUT2A CR 24 10 OSC 27 OUT2B 19 MODE1 CR 10 26 Mix decay RNF2 MTH 12 control 25 NC 11 18 MODE0 RNF2S TEST 17 Regulator GND 1 MTH 12 17 TEST VREF 13 CW CCW 16 PS 14 15 CLK Figure 3. BD63525AEFV Block Diagram Figure 2. Terminals Configuration Diagram Descriptions on Terminals Pin No. Pin name Function Pin No. Pin name Function Clock input terminal for advancing the 1 GND Ground terminal 15 CLK electrical angle. H bridge output terminal CW CCW Motor rotating direction setting terminal 2 OUT1B 16 Connection terminal of resistor for Terminal for testing 3 RNF1 17 TEST1 output current detection (Used by connecting with GND) Input terminal of current limit Motor excitation mode setting terminal 4 RNF1S 18 MODE0 comparator 5 OUT1A H bridge output terminal 19 MODE1 Motor excitation mode setting terminal 6 NC Non connection 20 ENABLE Output enable terminal Power supply terminal Non connection 7 VCC1 21 NC Non connection Power supply terminal 8 NC 22 VCC2 9 GND Ground terminal 23 NC Non connection Connection terminal of CR for setting 10 CR 24 OUT2A H bridge output terminal chopping frequency 11 NC Non connection 25 RNF2S Input terminal of current limit comparator Connection terminal of resistor for output Current decay mode setting terminal 12 MTH 26 RNF2 current detection Output current value setting terminal H bridge output terminal 13 VREF 27 OUT2B Power save terminal Non connection 14 PS 28 NC www .rohm.com TSZ02201-0P2P0B701520-1-2 2016 ROHM Co., Ltd. All rights reserved. 2/23 TSZ2211115001 12.Jul.2017 Rev.002 Control logic Predriver