Stepping Motor Driver Series Standard 36V Stepping Motor Drivers BD6393FP, BD6395FP No.12009EAT05 Description BD6393FP,BD6395FP are the simple type that provides the minimum function for driving stepping motor and various protection circuits. As for its basic function, it is a low power consumption bipolar PWM constant current-drive driver with power upplys rated voltage of 36V and rated output current of 1.2A, 1.5A. There are excitation modes of FULL STEP & HALF STEP &, QUARTER STEP mode. This series contributes to reduction of mounting area, cost down, safety design. Feature 1) Power supply: one system drive (rated voltage of 36V) 2) Rated output current: 0.8A, 1.2A, 1.5A 3) Low ON resistance DMOS output 4) Parallel IN drive mode 5) PWM constant current control (self oscillation) 6) Built-in spike noise cancel function (external noise filter is unnecessary) 7) FULL STEP, HALF STEP, QUARTER STEP 8) Power save function 9) Built-in logic input pull-down resistor 10) Power-on reset function 11) Thermal shutdown circuit (TSD) 12) Over current protection circuit (OCP) 13) Under voltage lock out circuit (UVLO) 14) Over voltage lock out circuit (OVLO) 15) Malfunction prevention at the time of no applied power supply (Ghost Supply Prevention) 16) Electrostatic discharge: 4kV (HBM specification) 17) FIN heat-radiating type HSOP package (BD6393FP/BD6395FP) 18) Pin-compatible line-up (BD6393FP/BD6395FP) Application Laser beam printer, Scanner, Photo printer, FAX, Ink jet printer, Mini printer, Sewing machine, Toy, and Robot etc. www.rohm.com 2012.02 - Rev.A 1/8 2012 ROHM Co., Ltd. All rights reserved. Technical Note BD6393FP, BD6395FP Absolute maximum ratings(Ta=25) Item Symbol BD6393FP BD6395FP Unit Supply voltage V -0.2+36.0 V CC1,2 1 1.45 Power dissipation Pd W 2 3.47 Input voltage for control pin V -0.2+5.3 V IN RNF maximum voltage V 0.5 V RNF 3 3 Maximum output current I 1.2 1.5 A/phase OUT Operating temperature range T -25+75 opr Storage temperature range T -55+150 stg Junction temperature T 150 jmax 1 70mm70mm1.6mm glass epoxy board. Derating in done at 11.6mW/ for operating above Ta=25. 2 4-layer recommended board. Derating in done at 27.8mW/ for operating above Ta=25. 3 Do not, however exceed Pd, ASO and Tjmax=150. Operating conditions(Ta= -25+75) Item Symbol BD6393FP BD6395FP Unit Supply voltage V 1628 V CC1,2 4 4 Output current (DC) I 0.8 1.2 A/phase OUT 4 Do not however exceed Pd, ASO. Electrical characteristics Applicable to all the series (Unless otherwise specified Ta=25, V =24V) cc1,2 Limit Item Symbol Unit Condition Min. Typ. Max. Whole Circuit current at standby I - 0.45 2.00 mA PS=L CCST Circuit current I - 3 10 mA PS=H, VREF=2V CC Control input (PHASE1, I01, I11, PHASE2, I02, I12, PS) H level input voltage V 2.0 - 5.0 V INH L level input voltage V 0 - 0.8 V INL Output (OUT1A, OUT1B, OUT2A, OUT2B) Output ON resistance I =0.6A OUT R - 1.80 2.16 ON (BD6393FP) Sum of upper and lower Output ON resistance I =1.0A OUT R - 1.00 1.30 ON (BD6395FP) Sum of upper and lower Output leak current I - - 10 A LEAK Current control RNFX input current I -40 -20 - A RNFX=0V RNFX VREF input current I -2.0 -0.1 - A VREF=0V VREF VREF input voltage range V 0 - 2 V REF Comparator threshold V 0.340 0.400 0.460 V VREF=2V,I0X=L,I1X=L CTHLL 100% Comparator threshold V 0.227 0.267 0.307 V VREF=2V,I0X=H,I1X=L CTHHL 67% Comparator threshold V 0.113 0.133 0.153 V VREF=2V,I0X=L,I1X=H CTHLH 33 Minimum on time t 0.3 0.7 1.2 s R=39k, C=1000pF ONMIN www.rohm.com 2012.02 - Rev.A 2/8 2012 ROHM Co., Ltd. All rights reserved.