BD63872EFV-E2

Stepping Motor Driver series High Performance, High Reliability 36V Series Stepping Motor Drivers BD6387xEFV Series No.12009EAT10 Description BD6387xEFV series are the high-grade type that provides the highest function and highest reliance in the ROHM stepping motor driver series. As for its basic function, it is a low power consumption bipolar PWM constant current-drive driver with power BD63877/BD63875/BD63873EFV are CLK-IN type drivers and BD63876/BD63874/BD63872EFV are PARALLEL-IN type drivers. There are excitation modes of FULL STEP & HALF STEP (2 kinds), QUARTER STEP mode, and for current decay mode, the ratio of FAST DECAY & SLOW DECAY can be freely set, so the optimum control conditions for every motor can be realized. In addition, being able to drive with one system of power supply makes contribution to the set designs getting easy. Feature 1) Single power supply input (rated voltage of 36V) 2) Rated output current:(DC) 1.0A, 1.5A, 2.0A 3) Low ON resistance DMOS output 4) CLK-IN drive mode (BD63877/63875/63873EFV) 5) PARALLEL-IN drive mode (BD63876/63874/63872EFV) 6) PWM constant current control (other oscillation) 7) Built-in spike noise cancel function (external noise filter is unnecessary) 8) Full-, half (two kinds)-, quarter-step functionality 9) Current decay mode switching function (linearly variable FAST/SLOW DECAY ratio) 10) Normal rotation & reverse rotation switching function (BD63877/63875/63873EFV) 11) Power save function 12) Built-in logic input pull-down resistor 13) Power-on reset function (BD63877/63875/63873EFV) 14) Thermal shutdown circuit (TSD) 15) Over current protection circuit (OCP) 16) Under voltage lock out circuit (UVLO) 17) Over voltage lock out circuit (OVLO) 18) Ghost Supply Prevention (protects against malfunction when power supply is disconnected) 19) Electrostatic discharge: 8kV (HBM specification) 20) Adjacent pins short protection 21) Inverted mounting protection 22) Microminiature, ultra-thin and high heat-radiation (exposed metal type) HTSSOP-B28 package 23) Pin-compatible line-up (BD63877/63875/63873EFV, BD63876/63874/63872EFV) Application PPC, multi-function printer, laser beam printer, ink jet printer, monitoring camera, WEB camera, sewing machine, photo printer, FAX, scanner, mini printer, toy, and robot etc. www.rohm.com 2012.02 - Rev.A 1/8 2012 ROHM Co., Ltd. All rights reserved. Technical Note BD6387xEFV Series Absolute maximum ratings(Ta=25) Item Symbol BD63877/63876EFVBD63875/63874EFV BD63873/63872EFVUnit Supply voltage V -0.2+36.0 V CC1,2 1 1.45 W Power dissipation Pd 2 4.70 W Input voltage for control pin V -0.2+5.5 V IN RNF maximum voltage V 0.7 V RNF 3 3 3 Maximum output current I 2.0 1.5 1.0 A/phase OUT 4 3 3 3 Maximum output current (PEAK) I 2.5 2.0 1.5 A/phase OUTPEAK Operating temperature range T -25+85 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 37.6mW/ for operating above Ta=25. 3 Do not, however exceed Pd, ASO and Tjmax=150. 4 Pulse width tw1ms, duty 20%. Operating conditions(Ta= -25+85) Item Symbol BD63877/63876EFVBD63875/63874EFVBD63873/63872EFVUnit Supply voltage V 19~28 V CC1,2 5 5 5 MaximumOutput current (DC) I 1.7 1.2 0.7 A/phase OUT 5 Do not, however exceed Pd, ASO and . Electrical characteristics (Unless otherwise specified Ta=25, V =24V) CC1,2 Limit Item Symbol Unit Conditions Min. Typ. Max. Whole Circuit current at standby I - 1.0 2.5 mA PS=L CCST Circuit current I - 2.5 5.0 mA PS=H, VREF=3V CC Control input H level input voltage V 2.0 - - V INH L level input voltage V - - 0.8 V INL H level input current I 35 50 100 A V =5V INH IN L level input current I -10 0 - A V =0V INL IN Output (OUT1A, OUT1B, OUT2A, OUT2B) I =1.5A, OUT Output ON resistance (BD63877/63876EFV) R - 0.65 0.85 ON Sum of upper and lower I =1.0A, OUT Output ON resistance (BD63875/63874EFV) R - 1.00 1.30 ON Sum of upper and lower I =0.5A, OUT Output ON resistance (BD63873/63872EFV) R - 1.90 2.47 ON Sum of upper and lower Output leak current I - - 10 A LEAK Current control RNFXS input current I -2.0 -0.1 - A RNFXS=0V RNFS RNFX input current I -40 -20 - A RNFX=0V RNF VREF input current I -2.0 -0.1 - A VREF=0V VREF VREF input voltage range V 0 - 3.0 V REF MTH input current I -2.0 -0.1 - A MTH=0V MTH MTH input voltage range V 0 - 3.5 V MTH Minimum on time (Blank time) t 0.3 0.8 1.5 s C=1000pF, R=39k ONMIN BD63877EFV/63875EFV/63873EFV Comparator threshold V 0.57 0.60 0.63 V VREF=3V CTH BD63876EFV/63874EFV/63872EFV V CTH10 VREF=3V, (I0X,I1X)=(L,L) Comparator threshold 100% 0.57 0.60 0.63 V 0 VREF=3V, Comparator threshold 67% V 0.38 0.40 0.42 V CTH67 (I0X,I1X)=(H,L) VREF=3V, Comparator threshold 33% V 0.18 0.20 0.22 V CTH33 (I0X,I1X)=(L,H) www.rohm.com 2012.02 - Rev.A 2/8 2012 ROHM Co., Ltd. All rights reserved.