Stepper Motor Driver IC MTD Series DMOS Microstepping Dual PWM Motor Driver MTD2525J Features ●Dual stepper motor driver ●For a bipolar stepper motor ●Built in constant current chopping ( fixed frequency ) ●DMOS output ; Vout = 40V, Iout = 1.0A ●2bit digital current selection ●Selectable current decay mode ( Slow/Fast/Mix Decay Mode) ●Built in UVLO function , thermal shutdown function ●Built in system reset circuitry ●Built in voltage regulator ( VREG=3.3V , Iout=250mA ) ( VREG=2.5V , Iout=250mA ) ●Surface mount type package with heat dissipation tab（HSOP40） HSOP40 ■Absolute maxmum ratings / Ta=25℃ Parameter Symbol Value Unit Motor supply voltage Vmm 40 V Motor driver output current IOUT 1.0 A Logic supply voltage Vcc1, Vcc2 0 ∼ ７ V Logic input voltage V IN 0 ∼ Vcc V 3.3V-Regulator output current I REG 250 mA 2.5V-Regulator output current I REG 250 mA Reset-IC output current I RST 7 mA Reset-IC output voltage V RST 8 V Power dissipation * PD 2.9 W Storage temperature range Tstg -40 ∼ 150 ℃ Maximum iunction temperature Tj 150 ℃ *50.8×50.8×1mm3 Glass Epoxy Board(FR4),250mm2 Cupper Pattern Shindengen Electric Mfg.Co.Ltd W1001 Stepper Motor Driver IC MTD2525J ■Pin Assignment <TOP VIEW> 1 2 3 4 5 6 7 8 9 10 OUT A2-2 OUT A2-1 Rs A2 VmmA PHA A2 I0 A2 I1 A2 cpA cpB cpC GND Tab Tab REG2.5V REG3.3V Vcc 1 I1 B2 I0 B2 PHA B2 VmmB Rs B2 OUT B2-1 OUT B2-2 OUT A1-2 OUT A1-1 Rs A1 PHA A1 I0 A1 I1 A1 CR A DEC A Vr A RESET-OUT 40 39 38 37 36 35 34 33 32 31 11 12 13 14 15 16 17 18 19 20 30 29 28 27 26 25 24 23 22 21 GND Vcc 2 Vr B DEC B CR B I1 B1 I0 B1 PHA B1 Rs B1 OUT B1-1 OUT B1-2 ■Recommended operation conditions Parameter Symbol Recommendation Unit Motor supply voltage Vmm 15∼35 V Vcc1 logic supply voltage Vcc1 4.75∼5.50 V Vcc2 logic supply voltage Vcc2 4.20∼5.50 V Vr input voltage Vr 0∼5 V Junction temperature Tj -25∼120 ℃ ■Thermal resistance Symbol Value Unit θja 43 ℃/W *50.8×50.8×1mm3 Glass Epoxy Board(FR4),250mm2 Cupper Pattern Shindengen Electric Mfg.Co.Ltd W1001 Stepper Motor Driver IC MTD2525J ■Electrical Characteristics 1 Ta=25℃,Vcc1=5V,Vcc2=5V,Vmm=24V unless otherwise specified Parameter Symbol Condition MIN TYP MAX Unit Vcc1 Logic supply current Icc1 3.3-REG and 2.5-REG no load. RESET-OUT="High" - 5 10 mA Thermal shutdown operation temperture Tsd ( Notes 1 ) (150) 170 - ℃ Common to all function Stepper motor drivers Vcc2 UVLO Enable threshold Vcc2UVLO - 3.6 3.8 4.0 V Vcc2 Logic supply current(when all circuit stop) Icc2(OFF) - - 10 15 mA Vcc2 Logic supply current(all circuit operation) Icc2(ON) - - 15 20 mA - 20 30 mA Moter supply current(all circuit operation) ImmON The completion of charge Moter supply current(stand-by) Imm(STB) Vcc=OPEN or 0V, Vmm=35V - - 100 mA Pha/I0/I1”High” input voltage V IN H - 2.0 − Vcc2 V Pha/I0/I1 ”Low” input voltage V IN L - GND − 0.7 V Pha/I0/I1 input current I IN H I IN L V IN = 5V V IN = 0V − − 10 μA DEC ”High” input current I DEC H V DEC = 5V − 333 500 μA DEC "Low" input current I DEC L V DEC = 0V − − -15 μA Reference input current I ref Vref = 3V − 50 100 μA Comparator threshold(100%) Vs1 I0 = Low , I1 = Low 95 100 105 % Comparator threshold(70%) Vs2 I0 = High , I1 = Low 64 70 76 % Comparator threshold(40%) Vs3 I0 = Low , I1 = High 36 40 44 % Source driver ON resistance R ON H Iout = -0.8A − 0.6 0.8 Ω Sink driver ON resistance R ON L Iout = 0.8A − 0.6 0.8 Ω I leak Vmm = 35V , Vout = 0V Vout = 35V , Vtab = 0v − − 100 μA tb Ct=3300pF , Rt=18kΩ − 1.55 − μs Tchg Cp1=0.22μF,Cp2=0.01μF Vmm=27V,Vcc2=0V→5V − − 1.5 ms Output leakagr current Blanking time CpA Charge setting time ( Notes 1) shutdown temperature is assured by design Shindengen Electric Mfg.Co.Ltd W1001 Stepper Motor Driver IC MTD2525J ■Electrical Characteristics 2 Ta=25℃ unless otherwise specified Parameter Symbol Condition MIN TYP MAX Unit Output voltage 1 VREG3.3_1 Vcc1=5.0V,I REG3.3 = 40mA 3.21 3.30 3.39 V Output voltage 2 VREG3.3_2 Vcc1=3.60V,I REG3.3 = 100mA 3.10 3.30 3.39 V Output max load current 1 IREG3.3_1 Vcc1=4.75V,V REG3.3 = 3.21V - - 250 mA Output max load current 2 IREG3.3_2 Vcc1=3.60V,V REG3.3 = 3.10V - - 100 mA Line regulation △V LINE3.3 Vcc1=4.5∼5.0V , I REG3.3= 40mA − 10 20 mV Load regulation △V LOAD3.3 Vcc1 = 5V , I REG3.3 = 0∼ 50mA − 30 60 mV Ripple rejection RR3.3 Vcc1=5V , V RIPPLE=1Vp-p I REG3.3=40mA,f=120Hz, C3.3=4.7μF 50 70 − dB Output voltage 1 VREG2.5_1 Vcc1=5.0V,I REG2.5 = 40mA 2.425 2.500 2.575 V Output voltage 2 VREG2.5_2 Vcc1=3.6V,I REG2.5 =100mA 2.300 2.500 2.575 V Output max load current 1 IREG2.5_1 Vcc1=4.75V,V REG2.5 = 2.425V - - 250 mA Output max load current 2 IREG2.5_2 Vcc1=3.60V,V REG2.5 = 2.300V - - 100 mA Line regulation △V LINE2.5 Vcc1=4.5∼5.0V , I REG2.5= 40mA − 10 20 mV Load regulation △V LOAD2.5 Vcc1 = 5V , I REG2.5 = 0∼ 50mA − 30 60 mV Ripple rejection RR2.5 Vcc1=5V , V RIPPLE=1Vp-p I REG2.5=40mA,f=120Hz, C2.5=4.7μF 50 70 − dB Detection voltage VsRST RL = 1KΩ VRST(sat)≦0.4V Vcc1=High → Low 4.15 4.35 4.55 V Output leakage current I RSTH V RST = 8V − − 3 μA VRST(sat) Vcc1 = 2.5V , IRST = 3mA − 0.2 0.4 V VopL RL = 1KΩ VRST(sat)≦0.4V − 0.9 1.0 V 60 100 140 ms 3.3V - Voltage regulator 2.5V - Voltage regulator System reset circuitry Output saturation voltage Operating logic supply vltage "H" Transport delay time tD Shindengen Electric Mfg.Co.Ltd W1001 Stepper Motor Driver IC MTD2525J ■Block diagram / Typical application Step Motor Logic Supply Vcc=5V Load Load Logic Supply Supply Vcc=5V PHA B2 Vcc2 RsA2 RsA1 OUTA 1-1 OUT A 1-2 Vcc2 UVLO Step Motor Supply Vmm A OUT A 2-1 PHA A2 OUT A 2-2 cpA cpB cpC OUT B OUT B 2-2 2-1 Charge Pump TSD RsB2 Vcc1 RsB1 Vmm B OUT B 1-2 OUTB 1-1 1.25REF C o n tro l C ir cu it C o n tro l C ir cu it DEC A DMOS Full Bridge 1.25REF DMOS Full Bridge C o n tro l C ir cu it PHA A1 Vcc 2 DMOS Full Bridge TSD C o n tro l C ir cu it 1.25REF RESET OUT 3.3V Regulator Reg 3.3V 2.5V Regulator Reg 2.5V TSD TSD UVLO SYSTEM RESET DMOS Full Bridge UVLO 1.25REF Vcc 2 PHA B1 DEC B RtB RtA UVLO CR A CtB CtB CtA OSC VrA OSC 2-bit digital current select 54k 2-bit digital current select 2-bit digital current select 2-bit digital current select 6k VrB 54k 6k GND TAB I0A1 I1A1 I0A2 I1A2 I1B2 I0B2 I1B1 I0B1 ■DEC truth table 条件 V DEC ＜ 0.7V 1V＜ V DEC ＜ 3V V DEC ＞ 3V DECAY Mode Slow Decay Mix decay Fast decay ■PHASE truth table PHA A1 H L OUT A1-1 H L OUT A1-2 L H PHA A2 H L OUT A2-1 H L OUT A2-2 L H B side truth table is the same to A side ■Current control truth table I0 L H L H I1 L L H H Shindengen Electric Mfg.Co.Ltd Output current (％) 100 70 40 0 W1001 Stepper Motor Driver IC MTD2525J ■Outline Drawing ( Unit : mm ) Shindengen Electric Mfg.Co.Ltd W1001 Stepper Motor Driver IC ! ! MTD2525J Although we are constantly making every effort to improve the quality and reliability of our products, there nevertheless remains a certain probability that the semiconductor products may occasionally fail or malfunction. Please take careful precautions against product failures or malfunctions to avoid any injuries, fire accidents or social loss by implementing safety designs such as redundancy designs, designs for fi re spread prevention, and designs for preventing malfunctions. Our semiconductor products listed in this document are not designed or manufactured to be used in devices or systems requiring extremely high levels of quality and reliability, or the failure or malfunction of which may directly threaten human lives or cause injury. In the cases where the products are to be used in devices or systems for special applications or devices or systems for specialized applications shown below, always make sure to consult us in advance. Special Applications Transportation devices (automotive, marine, etc.), communication devices for core network, traffic signal devices, fire prevention/anticrime devices, various safety devices, medical devices, etc. Specialized Applications Nuclear power control systems, aircraft and aerospace devices, submarine relay devices, and systems for preserving life, etc. Even if it is not for a special or specialized application, when IC products are to be used for devices or systems that are desired to last for a long period under continuous operation, please make sure to consult our sales representative in advance. ● We reserve the right to make any changes to the contents of this manual without prior notice in accordance with modifications to IC products. ● Details of specifications should be exchanged at the adoption of the IC products. ● All information included in this manual is believed to be accurate and reliable. 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