MTD2525J

Stepper Motor Driver IC MTD Series MTD2525J Features DMOS Microstepping Dual PWM Motor Driver ●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 Motor supply voltage Motor driver output current Logic supply voltage Logic input voltage 3.3V-Regulator output current 2.5V-Regulator output current Reset-IC output current Reset-IC output voltage Power dissipation * Storage temperature range Maximum iunction temperature Symbol Vmm IOUT Vcc1, Vcc2 V IN I REG I REG I RST V RST PD Tstg Tj Value 40 1.0 0 ∼ ７ 0 ∼ Vcc 250 250 7 8 2.9 -40 ∼ 150 150 Unit V A V V mA mA mA V W ℃ ℃ *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 OUT A2-2 OUT A2-1 Rs A2 VmmA PHA A2 I0 A2 I1 A2 cpA cpB cpC GND REG2.5V REG3.3V Vcc 1 I1 B2 I0 B2 PHA B2 VmmB Rs B2 OUT B2-1 OUT B2-2 Tab 11 12 13 14 15 16 17 18 19 20 30 29 28 27 26 25 24 23 22 21 1 2 3 4 5 6 7 8 9 10 40 39 38 37 36 35 34 33 32 31 Tab OUT A1-2 OUT A1-1 Rs A1 PHA A1 I0 A1 I1 A1 CR A DEC A Vr A RESET-OUT 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 Motor supply voltage Vcc1 logic supply voltage Vcc2 logic supply voltage Vr input voltage Junction temperature Symbol Vmm Vcc1 Vcc2 Vr Tj Recommendation 15∼35 4.75∼5.50 4.20∼5.50 0∼5 -25∼120 Unit V V V V ℃ ■Thermal resistance Symbol θja Value 43 Unit ℃/W *50.8×50.8×1mm3 Glass Epoxy Board(FR4),250mm2 Cupper Pattern Shindengen Electric Mfg.Co.Ltd W1001 Stepper Motor Driver IC ■Electrical Characteristics 1 MTD2525J Ta=25℃,Vcc1=5V,Vcc2=5V,Vmm=24V unless otherwise specified Parameter Common to all function Vcc1 Logic supply current Thermal shutdown operation temperture Stepper motor drivers Vcc2 UVLO Enable threshold Vcc2 Logic supply current(when all circuit stop) Vcc2 Logic supply current(all circuit operation) Moter supply current(all circuit operation) Moter supply current(stand-by) Pha/I0/I1”High” input voltage  Pha/I0/I1 ”Low” input voltage  Pha/I0/I1 input current DEC ”High” input current  DEC "Low" input current  Reference input current Comparator threshold(100%) Comparator threshold(70%) Comparator threshold(40%) Source driver ON resistance Sink driver ON resistance Output leakagr current Blanking time CpA Charge setting time Vcc2UVLO Icc2(OFF) Icc2(ON) ImmON Imm(STB) V IN H V IN L I IN H I IN L I DEC H I DEC L I ref Vs1 Vs2 Vs3 R ON H R ON L I leak tb Tchg The completion of charge Vcc=OPEN or 0V, Vmm=35V V IN = 5V V IN = 0V V DEC = 5V V DEC = 0V Vref = 3V I0 = Low , I1 = Low I0 = High , I1 = Low I0 = Low , I1 = High Iout = -0.8A Iout = 0.8A Vmm = 35V , Vout = 0V Vout = 35V , Vtab = 0v Ct=3300pF , Rt=18kΩ Cp1=0.22μF,Cp2=0.01μF Vmm=27V,Vcc2=0V→5V 3.6 2.0 GND − − − − 95 64 36 − − − − − 3.8 10 15 20 − − − 333 − 50 100 70 40 0.6 0.6 − 1.55 − 4.0 15 20 30 100 Vcc2 0.7 10 500 -15 100 105 76 44 0.8 0.8 100 − 1.5 V mA mA mA mA V V μA μA μA μA % % % Ω Ω μA μs ms Icc1 Tsd 3.3-REG and 2.5-REG no load. RESET-OUT="High" ( Notes 1 ) (150) 5 170 10 mA ℃ Symbol Condition MIN TYP MAX Unit ( Notes 1) shutdown temperature is assured by design Shindengen Electric Mfg.Co.Ltd W1001 Stepper Motor Driver IC ■Electrical Characteristics 2 MTD2525J Ta=25℃ unless otherwise specified Parameter 3.3V - Voltage regulator Output voltage 1 Output voltage 2 Output max load current 1 Output max load current 2 Line regulation Load regulation VREG3.3_1 VREG3.3_2 IREG3.3_1 IREG3.3_2 △V LINE3.3 △V LOAD3.3 Vcc1=5.0V,I REG3.3 = 40mA Vcc1=3.60V,I REG3.3 = 100mA Vcc1=4.75V,V REG3.3 = 3.21V Vcc1=3.60V,V REG3.3 = 3.10V Vcc1=4.5∼5.0V , I REG3.3= 40mA Vcc1 = 5V , I REG3.3 = 0∼ 50mA Vcc1=5V , V RIPPLE=1Vp-p I REG3.3=40mA,f=120Hz, C3.3=4.7μF 3.21 3.10 − − 3.30 3.30 10 30 3.39 3.39 250 100 20 60 V V mA mA mV mV Symbol Condition MIN TYP MAX Unit Ripple rejection 2.5V - Voltage regulator Output voltage 1 Output voltage 2 Output max load current 1 Output max load current 2 Line regulation Load regulation RR3.3 50 70 − dB VREG2.5_1 VREG2.5_2 IREG2.5_1 IREG2.5_2 △V LINE2.5 △V LOAD2.5 Vcc1=5.0V,I REG2.5 = 40mA Vcc1=3.6V,I REG2.5 =100mA Vcc1=4.75V,V REG2.5 = 2.425V Vcc1=3.60V,V REG2.5 = 2.300V Vcc1=4.5∼5.0V , I REG2.5= 40mA Vcc1 = 5V , I REG2.5 = 0∼ 50mA Vcc1=5V , V RIPPLE=1Vp-p I REG2.5=40mA,f=120Hz, C2.5=4.7μF 2.425 2.300 − − 2.500 2.500 10 30 2.575 2.575 250 100 20 60 V V mA mA mV mV Ripple rejection System reset circuitry Detection voltage RR2.5 50 70 − dB VsRST RL = 1KΩ VRST(sat)≦0.4V Vcc1=High → Low V RST = 8V Vcc1 = 2.5V , IRST = 3mA RL = 1KΩ VRST(sat)≦0.4V 4.15 4.35 4.55 V Output leakage current Output saturation voltage Operating logic supply vltage "H" Transport delay time I RSTH VRST(sat) VopL tD − − − 60 − 0.2 0.9 100 3 0.4 1.0 140 μA V V ms Shindengen Electric Mfg.Co.Ltd W1001 Stepper Motor Driver IC ■Block diagram / Typical application MTD2525J Logic Supply Vcc=5V Step Motor Load Supply PHA B2 RsA1 OUTA 1-1 OUT A 1-2 RsA2 Step Motor Load Supply Logic Supply Vcc=5V Vcc2 PHA A2 cpA cpB cpC RsB2 RsB1 OUTB 1-1 Vcc1 Vmm A Vcc2 UVLO TSD OUT A 2-1 OUT A 2-2 TSD Charge Pump OUT B OUT B 2-2 2-1 Vmm B OUT B 1-2 SYSTEM RESET 1.25REF 3.3V Regulator RESET OUT Reg 3.3V TSD C o n tro l C ir cu it C o n tro l C ir cu it TSD UVLO 1.25REF 2.5V Regulator Reg 2.5V Vcc 2 PHA B1 DEC B RtB C o n tro l C ir cu it C o n tro l C ir cu it UVLO 1.25REF Vcc 2 PHA A1 DEC A RtA CR A CtA OSC VrA DMOS Full Bridge DMOS Full Bridge 1.25REF DMOS Full Bridge DMOS Full Bridge UVLO CtB CtB OSC VrB 54k 2-bit digital current select 2-bit digital current select 2-bit digital current select 2-bit digital current select 54k 6k GND TAB I0A1 I1A1 I0A2 I1A2 I1B2 I0B2 I1B1 I0B1 6k ■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 Output current (％) 100 70 40 0 Shindengen Electric Mfg.Co.Ltd W1001 Stepper Motor Driver IC ■Outline Drawing MTD2525J ( 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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