Datasheet 36VHigh-performance, High-reliability Withstan d Voltage Stepping Motor Driver BD63920MUV General Description Key Specifications BD63920MUV 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) 2.0 A the device is 36 V, and rated output current is 2.0 A. Rated output current (peak value) 2.5 A CLK-IN and PARA-IN driving mode is adopted for input Range of operating temperature -25+85 interface, and excitation mode is corresponding to FULL Output ON resistance (total of 0.49 (Typ) STEP mode (2 kinds), HALF STEP mode (3 kinds), upper and lower resistors) QUARTER STEP mode (2 kinds), 1/8 step mode and 1/16 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 VQFN028V5050 5.00mm x 5.00mm 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 currentDC2.0A Low ON resistance DMOS output CLK-IN and PARA-IN drive mode PWM constant current (other oscillation) Built-in spike noise cancel function (external noise filter is unnecessary) Full (two kinds)-, half (three kinds)-, quarter (two VQFN028V5050 kinds)-, 1/8-, 1/16-step functionality Freely timing excitation mode switch Typical Application Circuit Current decay mode switch GND 25 linearly variable FAST/SLOW DECAY ratio SELECT1 1 Normal rotation & reverse rotation switching 2 SELECT2 function 3 PS 5 CLK/PHASE1 Power save function 6 MODE2/PHASE2 Built-in logic input pull-down resistor MODE1/I01 7 Power-on reset function MODE0/I11 8 Thermal shutdown circuit (TSD) CW CCW/I02 9 Over-current protection circuitOCP 10 ENABLE/I12 VCC1 24 Under voltage lock out circuit (UVLO) TEST 11 OUT1A Over voltage lock out circuit (OVLO) 23 Ghost Supply Prevention (protects against VREF 28 19 OUT1B malfunction when power supply is disconnected) 20 RNF1 Adjacent pins short protection 21 Microminiature, ultra-thin and high heat-radiation RNF1S (exposed metal type) package VCC2 12 OUT2A CR 13 Application 26 17 PPC, multi-function printer, laser beam printer, and OUT2B SELECT3 4 ink-jet printer 16 RNF2 MTH 27 Monitoring camera and WEB camera 15 Sewing machine RNF2S Photo printer, FAX, scanner and mini printer GND 18 Toy and robot Figure 1. Application circuit diagram Product structuresilicon monolithic integrated circuit It is not the radiation-proof design for this product. www.rohm.com TSZ02201-0P2P0B701550-1-2 2016 ROHM Co., Ltd. All rights reserved. 1/28 TSZ2211115001 12.Dec.2016 Rev.001 BD63920MUV Pin Configuration TOP VIEW Block Diagram 1 SELECT1 2 SELECT2 TSD OCP 5 CLK/PHASE1 GND Translator 25 6 OVLO MODE2/PHASE2 UVLO MODE1/I01 7 21 20 19 18 17 16 15 8 RESET MODE0/I11 3 PS CW CCW/I02 9 14 N.C. 22 N.C. ENABLE/I12 10 11 23 13 TEST OUT1A OUT2A VREF 28 24 12 VCC1 VCC2 DAC 11 25 GND TEST VCC1 24 10 CR 26 ENABLE/I12 OUT1A 23 RNF1S 9 19 27 CW CCW/I02 OUT1B MTH RNF1 20 28 8 VREF MODE0/I11 RNF2S 21 RNF1S 1 2 3 4 5 6 7 Blank time PWM control 12 VCC2 CR 13 OUT2A 26 OSC 17 OUT2B RNF2 4 16 SELECT3 Mix decay control MTH 27 15 RNF2S Regulator 18 GND Figure 2. Pin Configuration Diagram Figure 3. Block Diagram Pin Description Function Function Pin name Pin name Pin No. Pin No. (CLK/PARA) (CLK/PARA) (CLK / PARA IN) (CLK / PARA IN) Input terminal of current limit Drive mode setting terminal 1 SELECT1 15 RNF2S comparator Connection terminal of resistor for 2 SELECT2 Motor excitation mode setting terminal 16 RNF2 output current detection 3 PS Power save terminal 17 OUT2B H bridge output terminal 4 SELECT3 Decay mode setting terminal 18 GND Ground terminal Clock input terminal for advancing the CLK 5 electrical angle. 19 OUT1B H bridge output terminal /PHASE1 /Phase selection terminal MODE2 Motor excitation mode setting terminal Connection terminal of resistor for 6 20 RNF1 /Phase selection terminal output current detection /PHASE2 MODE1 Motor excitation mode setting terminal Input terminal of current limit 7 21 RNF1S /VREF division ratio setting terminal comparator /I01 MODE0 Motor excitation mode setting terminal 8 22 N.C. No Connection /VREF division ratio setting terminal /I11 CW CCW Motor rotating direction setting terminal 9 23 OUT1A H bridge output terminal /VREF division ratio setting terminal /I02 ENABLE Output enable terminal Power supply terminal 10 24 VCC1 /VREF division ratio setting terminal /I12 Terminal for testing Ground terminal 11 TEST 25 GND (Used by connecting with GND) Connection terminal of CR for setting Power supply terminal 12 VCC2 26 CR chopping frequency 13 OUT2A H bridge output terminal 27 MTH Current decay mode setting terminal 14 N.C. No Connection 28 VREF Output current value setting terminal www .rohm.com TSZ02201-0P2P0B701550-1-2 2016 ROHM Co., Ltd. All rights reserved. 2/28 TSZ2211115001 12.Dec.2016 Rev.001 RNF1S SELECT1 RNF1 SELECT2 OUT1B PS SELECT3 GND CLK/PHASE1 OUT2B MODE2/PHASE2 RNF2 MODE1/IO1 RNF2S Control logic Predriver