MTD2029J

PWM current control motor driver ICs MTD Series MTD2029J ■Features 1) 2） 3) 4) 5) 6） 7) 8)  9） 10) 11） 12） DMOS DUAL FULL BRIDGE PWM MOTOR DRIVER ICs Built-in dual full-bridge For a 2-phase bipolar stepper motor or two DC motors Constant current control function (fixed OFF time PWM current control) 2-bit digital current selection （It can respond to W1-2 phase excitation） Selectable current decay mode （Slow/Fast/Mix Decay Mode） Stand-by function Noise cancellation function (An external filter is unnecessary) Phase Synchronous function Over heating shutdown function with thermal hysteresis Under Voltage Lock Out function Output current 1.5A, Output voltage 50V Surface mount type package with heat dissipation tab (HSOP40) HSOP40 ■Block Diagram 36 Vcc TSD UVLO 2 37 38 3 OUT1 OUT2 1 VmmA 39 40 RsA 21 22 RsB 20 18 23 24 19 VmmB OUT3 OUT4 6 cpA cpB 5 cpC Charge Pump 4 35 BRAKE A BRAKE B 26 GATE CIRCUIT PHASE A 9 I0 A 10 I1 A 34 1/5 VrefA Current Sensor GATE CIRCUIT 8 13 PHASE B 12 2-bit digital current select I0 B 11 I1 B 2-bit digital current select Blank Blank 1/5 Vref B 27 + ONE SHOT ONE SHOT + Current Sensor 33 DECAY A CR A 32 + SYNC 14 30 STB TAB PG 31 LG 15 SRM + CR B 29 28 DECAY B Shindengen Electric Mfg.Co.Ltd W1002 PWM current control motor driver ICs ■Pin Assignment Vmm A OUT2 OUT2 cpC cpB cpA NC PHA A I0 A I1 A GND 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 GND Rs A Rs A OUT1 OUT1 Vcc BRA A Vref A DEC A CR A LG MTD2029Ｊ I1 B I0 B PHA B SYNC SRM NC NC OUT3 OUT3 Vmm B STB CR B DEC B Vref B BRA B NC OUT4 OUT4 Rs B Rs B [ ■Absolute Maximum Ratings Ta=25oC unless otherwise specified Parameter Logic supply voltage Logic input Input voltage Output voltage Output current Output current (Peak) ∗1 Flywheel diode voltage Flywheel diode current Allowable power dissipation ∗2 Storage temperature range Maximum junction temperature OUT,Rs are prepared each two terminals. Be sure to use, short-circuiting ] Symbol Vcc VPHA/I0/I1/DEC/BRA/ SYNC/SRM/STB VOUT Ic Ip ∗1 VF IF Pt ∗2 Tstg Tj(max) Ratings 0~ 7 0~Vcc 50 1.5 2.5 50 1.5 2.9 -40~150 150 Units V V V A A V A W oC oC Output Temperature ∗1 Condition : tw < 20µs ∗2 2inches grass epoxy board (FR4) and a heat dissipation Cu pattern area of 250mm2 Shindengen Electric Mfg.Co.Ltd W1002 PWM current control motor driver ICs ■Electrical Characteristics MTD2029Ｊ ( Ta=25oC, Vcc=5.0V unless otherwise specified ) Parameter Symbol Condition Logic supply current（2 circuit ON） Icc(ON) VI0="L",VI1="L" Logic supply current (2 circuit OFF) Icc(OFF) VI0="H",VI1="H" Load supply current (2 circuit ON) IMM(ON) VMM=24V,VI0="L",VI1="L" Logic supply current (STB) Icc(STB) VSTB="L" Load supply current (STB) IMM(STB) VMM=24V,VSTB="L" Logic "H" input voltage VINH Operating Logic "L" input voltage VINL Operating PHASE "H" input current IPHAH VPHA=5.0V PHASE "L" input current IPHAL VPHA=0V I0 "H" input current II0H VI0=5.0V I0 "L" input current II0L VI0=0V I1 "H" input current II1H VI1=5.0V I1 "L" input current II1L VI1=0V DECAY "H" input current IDECH VDEC=5.0V DECAY "L" input current IDECL VDEC=0V BRAKE "H" input current IBRAH VBRA=5.0V BRAKE "L" input current IBRAL VBRA=0V SRM "H" input current ISRMH VSRM=5.0V SRM "L" input current ISRML VSRM=0V SYNC "H" input current ISYNCH VSYNC=5.0V SYNC "L" input current ISYNCL VSYNC=0V STB "H" input current ISTBH VSTB=5.0V STB "L" input current ISTBL VSTB=0V Reference voltage range Vref Vref=Vcc-2.0V Vref "H" input current IrefH Vref=3.0V Vref "L" input current IrefL Vref=0V Comparator Threshold (100%) Vs1 VI0="L",VI1="L" Comparator Threshold (70%) Vs2 VI0="H",VI1="L" Comparator Threshold (40%) Vs3 VI0="L",VI1="H" Upper MOSFET ON resistance RonH IOUT=-1.0A Lower MOSFET ON resistance RonL IOUT=1.0A Upper MOSFET leak current IleakH Vmm=50V,VOUT=0V Lower MOSFET leak current IleakL VOUT=50V,VTAB=0V Upper diode foward drop VFH IOUT=-1.0A Lower diode foward drop VFL IOUT=1.0A One shot off time Toff Ct=470pF,Rt=56kΩ Blanking time tb Ct=470pF,Rt=56kΩ Vmm=24.0V,Cp1=0.47µF,Cp2=0.022µF Charge pump setting time Tchg Under voltage lock out threshold VUVLO Operating Thermal shutdown temperature TTSD Operating MIN 2.0 GND -42.0 -42.0 42.0 -42.0 95 64.4 36 - TYP 12.0 11.0 9.0 5.0 -1.0 -1.0 -1.0 -5.0 -62.5 -62.5 62.5 -1.0 -62.5 -5.0 100 70 40 0.5 0.5 1.3 1.3 26.3 2.03 4.0 165 MAX 17.0 16.0 12.0 8.0 100 Vcc 0.8 10.0 -10.0 10.0 -10.0 10.0 -10.0 10.0 -15.0 10.0 -125.0 10.0 -125.0 125 -10.0 10.0 -125.0 3.0 10.0 -15.0 105 75.6 44 0.7 0.7 50.0 50.0 1.5 1.5 2.0 - Unit mA mA mA mA µA V V µA µA µA µA µA µA µA µA µA µA µA µA µA µA µA µA V µA mA % % % Ω Ω µA µA V V µs µs ms V oC ■Recommended operation conditions Parameter Junction temperature range Logic supply Load supply Symbol Tj Vcc Vmm Recommendation -25∼120 4.75∼5.50 15∼45 Unit ℃ V V ■Thermal resistance Symbol θja *1 Rating 43 Unit ℃/W ∗1 2inches grass epoxy board (FR4) and a heat dissipation Cu pattern area of 250mm2 Shindengen Electric Mfg.Co.Ltd W1002 PWM current control motor driver ICs ■Truth Table BRAKE A or B I0 A or B I1 A or B PHASE A or B OUT 1 or 4 OUT 2 or 3 MTD2029Ｊ Output current ratio (%) H H H H H H H L L H L H L H L r L L H H L L H r L L L r H H H r L L L r H H H L H H H r L L L L 100 70 40 0 100 70 40 r : don't care (Output OFF) STB L H or Open (∗1) ∗1 Mode Stand-by Active SYNC L or Open (∗2) H Mode Disabled Synchronous pull-up resistance built-in ∗2 pull-down resistance built-in DECAY VDEC < VCR VDEC > VCR DECAY Mode FAST SLOW SRM L (∗3) Mode Disabled Synchronous Rectification H or Open (∗4) [ 1.0V < VCR < 3.0V All Fast Decay Mode VDEC < 0.6V All Slow Decay Mode VDEC > 3.4V ] ∗3 ∗4 SRM:Synchronous Rectification Mode pull-up resistance built-in Shindengen Electric Mfg.Co.Ltd W1002 PWM current control motor driver ICs The example of a 2-phase stepper motor drive circuit MTD2029Ｊ Vcc=5V Load Supply Cp1 Rs 21 22 RsB 20 18 23 19 24 VmmB OUT3 OUT4 6 cpA cpB 5 Cp2 Rs 36 Vcc TSD UVLO 2 37 38 3 OUT1 OUT2 39 1 40 VmmA RsA 4 cpC Charge Pump Vcc=5V 35 BRAKE A BRAKE B 26 Vcc=5 V CPU or GATE ARRAY Vref Vdec CPU or GATE ARRAY Vref Vdec GATE CIRCUIT PHASE A 9 I0 A 10 I1 A 2-bit digital current select GATE CIRCUIT CPU or GATE ARRAY 8 13 PHASE B 12 2-bit digital current select I0 B 11 I1 B Vref 34 1/5 VrefA Current Sensor Blank Blank 1/5 Vref B 27 + ONE SHOT ONE SHOT + Current Sensor Vdec 33 DECAY A CR A 32 + SYNC 14 30 STB TAB PG 31 LG 15 SRM + CR B 29 28 DECAY B CtA RtA CPU or GATE ARRAY RtB Vcc=5V CtB The example of a two DC motor drive circuit Vcc=5V Load Supply Cp1 Cp2 Rs 36 Vcc TSD UVLO Rs 21 22 RsB 20 18 23 24 19 VmmB OUT3 OUT4 6 cpA cpB 5 cpC Charge Pump 37 2 38 3 OUT1 OUT2 1 VmmA 39 40 RsA 4 35 BRAKE A BRAKE B 26 CPU or GATE ARRAY GATE CIRCUIT PHASE A 9 I0 A 10 I1 A 2-bit digital current select GATE CIRCUIT 8 13 PHASE B 12 2-bit digital current select I0 B 11 I1 B Vref 34 1/5 VrefA Current Sensor Blank Blank 1/5 Vref B 27 + ONE SHOT ONE SHOT + Current Sensor Vdec 33 DECAY A CR A 32 + SYNC 14 30 STB TAB PG 31 LG 15 SRM + CR B 29 28 DECAY B CtA RtA CPU or GATE ARRAY RtB CtB Shindengen Electric Mfg.Co.Ltd W1002 PWM current control motor driver ICs MTD2029Ｊ ●Constant chopping current level Ichop = Vref 5 ×Rs ●One shot off time Toff = Ct×Rt ●Pulse Blanking Time tb = Ct×Rt× ln 1 − 0.5×10-3 Rt 3 − 0.5×10-3Rt ●Recommended component valuesl Symbol Rs Rt Ct Cp1 Cp2 Recommended value 0.39 56k 470p 0.47µ 0.022µ Unit Ω Ω F F F Shindengen Electric Mfg.Co.Ltd W1002 PWM current control motor driver ICs ■Outline Dimension MTD2029Ｊ ( Unit : mm ) Shindengen Electric Mfg.Co.Ltd W1002 PWM current control motor driver ICs MTD2029Ｊ ! 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. However, our company takes no responsibility for any injury or damage incurred when using the IC products as described in this manual. Neither do we take any responsibility for issues arising from infringement of patent or other rights caused by using this manual. ● The provision of this manual does not guarantee the right to use any third party's patent or other rights, or grant permission to use the patent or other rights of our company. ● No part of this manual may be reproduced or copied without the specific written consent of Shindengen Electric Mfg. Co., Ltd. Shindengen Electric Mfg.Co.Ltd W1002