Stepping Motor Drivers Low Voltage Stepping Motor Drivers No.12009EAT01 BD6380EFV, BD6381EFV Description This series can drive the bipolar stepping motor used for paper feed carriages. It is a low power consumption bipolar PWM constant current-drive driver. It is suitable for the mobile devices of a battery drive by power save function. It contributes also to reduction of mounting area by ultra-thin and high heat-radiation (exposed metal type) HTSSOP package. Feature 1) Low ON resistance DMOS output 2) PWM constant current control (self oscillation) 3) Built-in spike noise cancel function (external noise filter is unnecessary) 4) Power save function 5) Built-in logic input pull-down resistor 6) Power-on reset function 7) Thermal shutdown circuit (TSD) 8) Over current protection circuit (OCP) 9) Under voltage lock out circuit (UVLO) 10) Malfunction prevention at the time of no applied power supply (Ghost Supply Prevention) 11) Electrostatic discharge: 4kV (HBM specification) 12) Adjacent pins short protection 13) Microminiature, ultra-thin and high heat-radiation (exposed metal type) HTSSOP package Application Mini printer, Handy printer, Monitoring camera, WEB camera, Scanner, Toy, and Robot etc. Absolute maximum ratings(Ta=25) Item SymbolBD6380EFV BD6381EFV Unit Supply voltage VCC V -0.2+7.0 -0.2+7.0 V CC Supply voltage VM V -0.2+15.0 -0.2+15.0 V M 1 1 1.1 1.1 W Power dissipation Pd 2 2 4.0 4.0 W Input voltage for control pin V -0.2(V +0.3) -0.2(V +0.3) V IN CC CC RNF maximum voltage V 0.5 0.5 V RNF 3 3 Maximum output current I 0.8 1.2 A/ch OUT Operating temperature range T -25+75 -25+75 opr Storage temperature range T -55+150 -55+150 stg Junction temperature T 150 150 jmax 1 70mm70mm1.6mm glass epoxy board. Derating in done at 8.8mW/ for operating above Ta=25. 2 4-layer recommended board. Derating in done at 32.0mW/ for operating above Ta=25. 3 Do not exceed Pd, ASO and Tjmax=150. www.rohm.com 2012.02 - Rev.A 1/8 2012 ROHM Co., Ltd. All rights reserved. Technical Note BD6380EFV/BD6381EFV Operating conditions (Ta=-25+75) Item SymbolBD6380EFV BD6381EFV Unit Supply voltage VCC V 2.55.5 2.55.5 V CC Supply voltage VM V 4.013.5 6.013.5 V M Input voltage for control pin V 0V 0V V IN CC CC 4 4 Output current (DC) I 0.5 0.8 A/ch OUT 4 Do not exceed Pd, ASO Electrical characteristics Applicable to BD6380EFV,BD6381EFV(Unless otherwise specified Ta=25, VCC=3.3V, VM=6.0V) Limit Item Symbol Unit Conditions Min. Typ. Max. Whole VCC current at standby I - 0 10 A PS=L CCST VCC current I - 1.6 3.0 mAPS=H, VLIMX=0.5V CC VM current at standby I - 0 10 A PS=L VMST VM current I - 0.08 0.50 mAPS=H, VLIMX=0.5V VM Control input (PS, IN1A, IN1B, IN2A, IN2B) H level input voltage V 2.0 - 3.3 V INH L level input voltage V 0 - 0.8 V INL H level input current I 15 30 60 AV =3V INH IN L level input current I -10 0 - AV =0V INL IN Output (OUT1A, OUT1B, OUT2A, OUT2B) Output ON resistance I =0.3A, VM=6V OUT R - 1.2 1.5 ON (BD6380EFV) Sum of upper and lower Output ON resistance I =0.6A, VM=7.2V OUT R - 1.0 1.25 ON (BD6381EFV) Sum of upper and lower Output leak current I - - 10 A LEAK Current control RNFX input current I -40 -20 - A RNFX=0V RNF SENSEX input current I -2.0 -0.1 - A SENSEX=0V SENSE VLIMX input current I -2.0 -0.1 - AVLIMX=0V VLIM VLIMX input voltage range V 0 - 0.5 V VLIM Comparator offset voltage V -10 - 10 mV OFS Noise cancel time t 0.3 0.7 1.2 s R=39k, C=1000pF n VREF voltage V 0.97 1.00 1.03 V I =0~1mA VREF VREF www.rohm.com 2012.02 - Rev.A 2/8 2012 ROHM Co., Ltd. All rights reserved.