36V Stepping Motor Driver BD63620AEFV General Description Major Characteristics BD63620AEFV is a bipolar low-consumption driver that Range of power supply voltage 1928 V driven by PWM current. Rated power supply voltage of Rated output current (peak value) 2.0 A the device is 36 V, and rated output current is 2.0A. Range of operating temperature -25+85 CLK-IN driving mode is adopted for input interface, and Output ON resistance (total of upper 0.95 (Typ.) excitation mode is corresponding to FULL STEP mode, and lower resistors) HALF STEP mode (2 types) and QUARTER STEP Package W(Typ.) x D(Typ.)x H(Max.) mode via a built-in DAC. In terms of current decay, the FAST DECAY/SLOW DECAY ratio may be set without HTSSOP-B24 7.80mm x 7.60mm x 1.00mm 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 currentDC2.0A 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 (two kinds)-, quarter-step functionality Basic application circuit Freely timing excitation mode switch Current decay mode switch linearly variable FAST/SLOW DECAY ratio Normal rotation & reverse rotation switching GND 18 function 12 Power save function CLK 11 PS CW CCW Built-in logic input pull-down resistor 14 15 Power-on reset function MODE0 MODE1 16 Thermal shutdown circuit (TSD) 17 ENABLE Over-current protection circuitOCP Under voltage lock out circuit (UVLO) Over voltage lock out circuit (OVLO) VCC1 5 VREF 9 Ghost Supply Prevention (protects against OUT1A 4 malfunction when power supply is disconnected) 2 Microminiature, ultra-thin and high heat-radiation OUT1B 3 (exposed metal type) package RNF1 Application PPC, multi-function printer, laser beam printer, and VCC2 20 ink-jet printer OUT2A CR 22 7 Monitoring camera and WEB camera 24 Sewing machine OUT2B 23 Photo printer, FAX, scanner and mini printer MTH 8 RNF2 Toy and robot TEST 13 GND 1 Figure 1. BD63620AEFV application circuit diagram Product structuresilicon monolithic integrated circuit It is not the radiation-proof design for this product. www.rohm.com TSZ02201-0P2P0B700670-1-2 2014 ROHM Co., Ltd. All rights reserved. 1/23 TSZ2211114001 11.Mar.2014 Rev.001 BD63620AEFV Terminals ConFigureuration Diagram Block Diagram 24 OUT2B GND 1 TSD OCP 12 CLK GND 14 2 23 RNF2 CW CCW 18 OUT1B OVLO UVLO 15 Translator MODE0 RESET MODE1 16 11 PS RNF1 3 22 OUT2A ENABLE 17 OUT1A 4 21 N.C. VREF 9 2bit DAC VCC1 5 20 VCC2 VCC1 5 6 19 N.C. N.C. OUT1A 4 RNF1S 2 OUT1B 7 18 CR GND 3 RNF1 RNF2S 17 ENABLE 8 MTH Blank time PWM control VCC2 20 9 16 VREF MODE1 OUT2A CR 22 7 OSC 24 MODE0 OUT2B N.C. 15 10 23 Mix decay RNF2 MTH 8 control PS 11 14 CW CCW TEST 13 Regulator GND 1 CLK 12 13 TEST Figure 2. Terminals Figure 3. BD63620AEFV Block Diagram Configuration Diagram Descriptions on Terminals NO. Designation Function NO. Designation Function Terminal for testing 1 GND Ground terminal 13 TEST (used by connecting with GND) Motor rotating direction setting 2 OUT1B H bridge output terminal 14 CW CCW terminal Connection terminal of resistor for Motor excitation mode setting 3 RNF1 15 MODE0 output current detection terminal Motor excitation mode setting 4 OUT1A H bridge output terminal 16 MODE1 terminal 5 VCC1 Power supply terminal 17 ENABLE Terminal for enabling output 6 N.C. Non connection 18 GND Grounding terminal Connection terminal of CR for 7 CR 19 N.C. Non connection setting chopping frequency Current decay mode setting 8 MTH 20 VCC2 Power supply terminal terminal Output current value setting 9 VREF 21 N.C. Non connection terminal 10 N.C. Non connection 22 OUT2A H bridge output terminal Connection terminal of resistor for 11 PS Power save terminal 23 RNF2 output current detection Clock input terminal for advancing 12 CLK 24 OUT2B H bridge output terminal the electrical angle www .rohm.com TSZ02201-0P2P0B700670-1-2 2014 ROHM Co., Ltd. All rights reserved. 2/23 TSZ2211115001 11.Mar.2014 Rev.001 Control logic Predriver