Datasheet 36V 2ch Stepping Motor Driver BD63888MUV General Description Key Specifications BD63888MUV is a bipolar low-consumption driver that Range of Power Supply Voltage 8 V to 28 V driven by PWM constant current. Rated power supply Rated Output Current 1.2 A voltage of the device is 36 V, and rated output current is Range of Operating Temperature -25 C to +85 C 1.2 A. CLK-IN drive mode is adopted for input interface, Output ON Resistance 1.0 (Typ) and excitation mode is corresponding to FULL STEP (total of upper and lower resistors) mode, HALF STEP mode (2 types) and QUARTER STEP mode via a built-in DAC. The power supply can be Package W(Typ) x D(Typ)x H(Max) driven by one single system, which simplifies the design. VQFN036V6060 6.0 mm x 6.0 mm x 1.0 mm Features Two bipolar stepping motors can be driven Rated Output Current 1.2 A Low ON Resistance DMOS Output CLK-IN Drive Mode Correspondence PWM Constant Current Control (the other excitation method) Built-in Spike Noise Blanking Function (external noise filter is unnecessary) Full-, Half (two kinds)-, Quarter-step Functionality Free Timing Excitation Mode Switch Typical Application Circuit Decay Mode Switch Function Normal Rotation and Reverse Rotation Switching Function OUT1A Power Save Function Built-in Logic Input Pull-down Resistor CLK1 OUT1B Power-on Reset Function TEST1 SENSE1 Thermal Shutdown Circuit (TSD) CW CCW1 Over-current Protection Circuit (OCP) MODE01 VBB1 Under Voltage Lockout Circuit (UVLO) MODE11 Over Voltage Lockout Circuit (OVLO) ENABLE1 OUT2A VREF1 Ghost Supply Prevention (protects against OUT2B malfunction when power supply is disconnected) TESTPS1 SENSE2 TESTPS2 OUT3A Application Monitoring Camera, WEB Camera, PPC, OUT3B Multi-function Printer, Laser Beam Printer, Ink-jet SENSE3 CLK2 Printer, Sewing Machine, Photo Printer, FAX, TEST2 Scanner, Mini Printer, Toy and Robot VBB2 CW CCW2 MODE02 OUT4A MODE12 ENABLE2 OUT4B VREF2 SENSE4 PS GND GND Figure 1. BD63888MUV Application Circuit Diagram Product structure : Silicon monolithic integrated circuit This product has no designed protection against radioactive rays www.rohm.com TSZ02201-0P2P0C701250-1-2 2018 ROHM Co., Ltd. All rights reserved. 1/24 TS Z2211114001 27.Apr.2018 Rev.001 BD63888MUV Pin Configuration Block Diagram TOP VIEW PS 11 Regulator CLK1 18 RESET CW CCW1 34 UVLO Interface MODE01 29 OVLO MODE11 35 28 ENABLE1 TSD TEST1 17 OCP VREF1 13 2bit DAC 12 TESTPS1 5 VBB1 27 26 25 24 23 22 21 20 19 SENSE1 2 OUT1A 4 OUT1B SENSE2 ENABLE1 28 18 CLK1 Blank time 3 SENSE1 PWM control Control Pre- MODE01 logic driver 29 17 TEST1 5 VBB1 OSC GND 30 16 GND 8 OUT2A 6 OUT2B N.C. 31 15 VREF2 Mix decay 32 DEC1 control 7 SENSE2 DEC1 32 14 TESTPS2 VREF2 15 2bit DAC DEC2 33 13 VREF1 TESTPS2 14 23 VBB2 SENSE3 EXP-PAD CW CCW1 TESTPS1 34 12 26 OUT3A 24 SENSE4 OUT3B MODE11 35 11 PS Blank time 25 SENSE3 PWM control CW CCW2 36 10 CLK2 Control Pre- logic driver 23 VBB2 OSC 1 2 3 4 5 6 7 8 9 20 OUT4A 22 OUT4B Mix decay DEC2 33 control 21 SENSE4 CLK2 10 CW CCW2 36 27 MODE02 Interface MODE12 1 16 GND ENABLE2 19 Figure 2. Pins Configuration Diagram 30 GND TEST2 9 Figure 3. BD63888MUV Block Diagram Pin Description Pin Pin Pin Name Function Pin Name Function No. No. 1 MODE12 2ch motor excitation mode setting pin 19 ENABLE2 2ch pin for enabling output 2 OUT1A H bridge output pin 20 OUT4A H bridge output pin Connection pin of resistor for output Connection pin of resistor for output 3 SENSE1 21 SENSE4 current detection current detection 4 OUT1B H bridge output pin 22 OUT4B H bridge output pin 5 VBB1 Power supply pin 23 VBB2 Power supply pin 6 OUT2B H bridge output pin 24 OUT3B H bridge output pin Connection pin of resistor for output Connection pin of resistor for output 7 SENSE2 25 SENSE3 current detection current detection 8 OUT2A H bridge output pin 26 OUT3A H bridge output pin Pin for testing 9 TEST2 27 MODE02 2ch motor excitation mode setting pin (Use it connecting with GND) 10 CLK2 2ch advancement clock input pin 28 ENABLE1 1ch pin for enabling output 11 PS Power save pin 29 MODE01 1ch motor excitation mode setting pin Pin for testing 12 TESTPS1 30 GND Ground pin (Use it connecting with the PS pin) 13 VREF1 Output current value setting pin 31 N.C. No connection Pin for testing 14 TESTPS2 32 DEC1 1ch current decay mode setting pin (Use it connecting with the PS pin) 15 VREF2 Output current value setting pin 33 DEC2 2ch current decay mode setting pin 16 GND Ground pin 34 CW CCW1 1ch motor rotating direction setting pin Pin for testing 17 TEST1 35 MODE11 1ch motor excitation mode setting pin (Use it connecting with GND) 18 CLK1 1ch advancement clock input pin 36 CW CCW2 2ch motor rotating direction setting pin The EXP-PAD of the center of product - EXP-PAD - - - connect to GND. w ww.rohm.com TSZ02201-0P2P0C701250-1-2 2018 ROHM Co., Ltd. All rights reserved. 2/24 TSZ2211115001 27.Apr.2018 Rev.001 MODE12 MODE02 OUT1A OUT3A SENSE1 SENSE3 OUT1B OUT3B VBB1 VBB2 OUT2B OUT4B SENSE2 SENSE4 OUT2A OUT4A TEST2 ENABLE2