36VHigh-performance, High-reliability Withstand Voltage Stepping Motor Driver BD63524EFV General Description Major Characteristics BD63524EFV is a bipolar low-consumption driver that Range of power supply voltage 8 28 V driven by PWM current. Rated power supply voltage of Rated output current (continuous) 2.5 A the device is 36 V, and rated output current is 2.5 A. Rated output current (peak value) 3.0 A CLK-IN driving mode is adopted for input interface, and Range of operating temperature -25+85 excitation mode is corresponding to FULL STEP mode, Output ON resistance (total of 0.35 (Typ.) HALF STEP mode, QUARTER STEP mode and 1/8 upper and lower resistors) STEP mode via a built-in DAC. In terms of current decay, the FAST DECAY/SLOW DECAY ratio may be Package W(Typ.) x D(Typ.)x H(Max.) set without any limitation, and all available modes may HTSSOP-B28 9.70mm x 6.40mm x 1.00mm be controlled in the most appropriate way. In addition, the power supply may be driven by one single system, which simplifies the design. Features Rated output currentDC2.5A Low ON resistance DMOS output CLK-IN drive mode PWM constant current (other oscillation) Built-in spike noise cancel function (external noise filter is unnecessary) Full-, half-, quarter-, 1/8-step functionality Freely timing excitation mode switch Current decay mode switch Basic application circuit linearly variable FAST/SLOW DECAY ratio Normal rotation & reverse rotation switching function GND 9 Power save function Built-in logic input pull-down resistor 15 CLK 14 PS CW CCW Power-on reset function 16 Thermal shutdown circuit (TSD) 18 MODE0 Over-current protection circuitOCP 19 MODE1 Under voltage lock out circuit (UVLO) ENABLE 20 Over voltage lock out circuit (OVLO) Ghost Supply Prevention (protects against VCC1 7 malfunction when power supply is disconnected) VREF 13 OUT1A 5 Adjacent pins short protection 2 Microminiature, ultra-thin and high heat-radiation OUT1B (exposed metal type) package 3 RNF1 4 Application RNF1S PPC, multi-function printer, laser beam printer, and VCC2 22 ink-jet printer OUT2A CR 24 Monitoring camera and WEB camera 10 27 Sewing machine OUT2B 26 Photo printer, FAX, scanner and mini printer RNF2 MTH 12 Toy and robot 25 RNF2S TEST 17 GND 1 Figure.1 BD63524EFV application circuit diagram Product structuresilicon monolithic integrated circuit It is not the radiation-proof design for this product. www .rohm.com TSZ02201-P2P0B700940-1-2 2015 ROHM Co., Ltd. All rights reserved. 1/23 TSZ2211114001 18.Feb.2015 Rev.001 BD63524EFV Terminals Configuration Diagram TOP VIEW Block Diagram GND 1 28 NC TSD OCP 15 CLK GND 27 OUT2B CW CCW 16 9 OUT1B 2 OVLO UVLO MODE0 18 Translator MODE1 19 RESET 14 RNF1 PS 3 26 RNF2 20 ENABLE RNF1S 4 25 RNF2S VREF 13 2bit DAC OUT1A 5 24 OUT2A VCC1 7 NC 6 23 NC OUT1A 5 RNF1S 2 OUT1B VCC1 VCC2 7 22 3 RNF1 RNF2S 4 RNF1S 21 NC NC 8 Blank time PWM control VCC2 22 GND 9 20 ENABLE OUT2A CR 24 10 OSC 27 OUT2B MODE1 CR 19 10 26 Mix decay RNF2 MTH 12 control 25 NC 11 18 MODE0 RNF2S TEST 17 Regulator GND 1 MTH 12 17 TEST VREF CW CCW 13 16 Figure.3 BD63524EFV Block Diagram PS 14 15 CLK 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. 2 OUT1B H bridge output terminal 16 CW CCW Motor rotating direction setting terminal Connection terminal of resistor for Terminal for testing 3 RNF1 17 TEST output current detection (Used by connecting with GND) Input terminal of current limit Motor excitation mode setting terminal 4 RNF1S 18 MODE0 comparator H bridge output terminal Motor excitation mode setting terminal 5 OUT1A 19 MODE1 Non connection Output enable terminal 6 NC 20 ENABLE 7 VCC1 Power supply terminal 21 NC Non connection 8 NC Non connection 22 VCC2 Power supply terminal Ground terminal Non connection 9 GND 23 NC Connection terminal of CR for setting H bridge output terminal 10 CR 24 OUT2A chopping frequency Input terminal of current limit 11 NC Non connection 25 RNF2S comparator Connection terminal of resistor for 12 MTH Current decay mode setting terminal 26 RNF2 output current detection 13 VREF Output current value setting terminal 27 OUT2B H bridge output terminal Power save terminal Non connection 14 PS 28 NC www.rohm.com TSZ02201-P2P0B700940-1-2 2015 ROHM Co., Ltd. All rights reserved. 2/23 TSZ2211115001 18.Feb.2015 Rev.001 Control logic Predriver