36ViHigh-performanceiand High-reliability Withstand Voltage Stepping Motor Driver BD63730EFV General Description Key Specification 19 to 28 V BD63730EFV is a low-power motor driver that drives Range of Power Supply Voltage: 3.0 A load by PWM current. Rated power supply voltage of Rated Output Current (Continuous): 3.5 A the device is 36V, and rated output current is 3.0A. The Rated Output Current (Peak Value): -25 to +85 C input interface are interchangeable between CLK-IN Range of Operating Temperature: drive mode and the PARALLEL-IN drive mode, and Output ON-Resistance (Total of 0.40 (Typ) excitation mode is corresponding to FULL STEP, HALF Upper and Lower Resistors): STEP (2 types), and QUARTER STEP modes via a Package W(Typ) x D(Typ)x H(Max) built-in DAC. In terms of current decay, the FAST DECAY/SLOW DECAY ratio may be set without any limitation, and all available modes may 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 current of 3.0A DC Low ON-Resistance DMOS output CLK-IN drive mode PARALLEL-IN drive mode PWM constant current control (other oscillation) HTSSOP-B54 Built-in spike noise cancel function (external noise 18.50mm x 9.50mm x 1.00mm filter is unnecessary) Full-step, half-step (two types), and quarter-step functionality Typical Application Circuit Dynamic excitation mode switch Current decay mode switch (linearly variable FAST/SLOW DECAY ratio) Normal rotation & reverse rotation switching CLK/PHASE1 function CW/I01 PS Power save function MODE0/PHASE2 Built-in logic input pull-down resistor MODE1/I02 TEST1 Power-ON reset function ENABLE/I12 Thermal shutdown circuit (TSD) TEST/I11 SELECT Over-current protection circuit (OCP) TEST2 Under voltage lock out circuit (UVLO) VCC1 Over voltage lock out circuit (OVLO) VREF OUT1A Ghost Supply Prevention (protects against malfunction when power supply is disconnected) OUT1B Electrostatic discharge: 4kV (HBM specification) RNF1 Adjacent pins short protection Micro miniature, ultra-thin and high heat-radiation RNF1S (exposed metal type) package VCC2 OUT2A CR Application PPC, multi-function printer, laser beam printer, and OUT2B ink-jet printer RNF2 MTH Monitoring camera and WEB camera Sewing machine RNF2S Photo printer, FAX, scanner and mini printer GND Toy and robot Figure 1. BD63730EFV Application Circuit Diagram Product structuresilicon monolithic integrated circuit This product has no designed protection against radioactive rays www .rohm.com TSZ02201-0P2P0B700360-1-2 2014 ROHM Co., Ltd. All rights reserved. 1/26 TSZ2211114001 17.Nov.2014 Rev.001 BD63730EFV Pin Configuration 54 OUT2 A 1 VCC2 53 VCC OUT 2A 2 2 NC 3 52 NC RNF 2 4 51 CR RNF 2 5 50 NC RNF 2 S 6 49 MTH NC 7 48 VREF NC 47 8 CLK NC 9 46 MODE 0 10 45 NC MODE 1 NC 11 44 ENABLE 43 OUT 2B 12 TEST 2 42 OUT B 13 CW CCW GND 14 41 PS 1 OUT B 15 40 SELECT 39 OUT 1B 16 NC NC 17 38 TEST2 NC 37 18 TEST1 NC 19 36 NC NC 20 35 NC NC 21 34 NC 22 33 NC RNF 1 S 23 32 RNF 1 GND 24 31 RNF 1 GND 30 NC 25 NC OUT1 A 26 29 VCC1 OUT1 A 28 VCC1 27 Figure 2. Terminals Configuration Diagram Block Diagram CLK/PHASE1 TSD OCP CW/I01 MODE0/PHASE2 OVLO UVLO MODE1/I02 Translator ENABLE/I12 RESET PS TEST/I11 SELECT TEST1 VREF 2bit DAC TEST2 VCC1 OUT1A RNF1S OUT1B RNF1 RNF2S RNF1S Blank time PWM control VCC2 OUT2A CR OSC OUT2B Mix decay RNF2 MTH control RNF2S Regulator GND Figure 3. BD63730EFV Block Diagram www .rohm.com TSZ02201-0P2P0B700360-1-2 2014 ROHM Co., Ltd. All rights reserved. 2/26 TSZ2211115001 17.Nov.2014 Rev.001 Control logic Predriver