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| SteprMotorDriverIC MTDSeris MTD2038G Features *oeDual ful bridge for a bipolar stepper motor driver *oeLoad supply voltage 40V , Output current 1.0A *oeConstant current control (Fixed frequncy PWM control) *oe2-bit selectable current lev (Ful step/Half step/Quarter ste Stanyb-d ntion oe* uf c *oeThermal shutdown with hysteresis *oeUnder voltage lock out function *oeSurface mount package with heat sink(HSOP24) Aste mamm ratings / Ta25*Z * b ulo x u = Parmet V REG DMOSMicrostepingPWMMotorDriver p) HSOP24 Symbol I REG V Vm IT OU P D*@*1 LOGIC Rating 12 0*6 0*7 40 1.0 2.1 -40*150 150 2 Unit mA V V V A W *Z *Z Cupper Pattern Outpcren Logicnput Refrnciput Loadsuply Outpcren Powerdispatn egStorampun MaximuJnctoepra *1 : 50.8*~50.8*~1mm 3 V' Tstg Tj Glass Epoxy Board(FR4),200mm *Pin Assignment MTD2038G I0 A PHA A Vmm A OUT A Rs A OUT A PG (TAB) OUT B Rs B OUT B Vmm B PHA B I0 B 7 8 9 10 11 12 18 17 16 15 14 13 1 2 3 4 5 6 TOP VIEW 24 23 22 21 20 19 I1 A Vr A Vr B TEST DEC VREG PG (TAB) LG Cp C Cp B Cp A STB I1 B ShindegElctrMfg.CoLtd W1002 *Blockdiagrm/Typtn CVREG Vmm Cvmm Cp1 Cp2 VREG TSD Stand-by UVLO VmmA OUTA OUTA OUTB OUTB VmmB CpA CpB CpC Charge Pump CPU or GATE ARRAY Vr Stand-by STB Decay GATE CIRCUIT CPU or GATE ARRAY Vr PHA A GATE CIRCUIT PHA B Decay VrA 1/5 Q R S 2-bit digital current selection VREG Oscillator LG PG(TAB) RsB Rs Current Sensor Current Sensor R S Q VrB 1/5 . Mix Decay% selection I0A DEC Decay 2-bit digital current selection I1A RsA Rs TEST OPEN or "H" I0B I1B CPU or GATE ARRAY CPU or GATE ARRAY *oeRecomndptvalus *1*F It recommend the electrolytic capacitor for the noise absorp connect near IC to Load supply. tion *oeConstachpigurelv Ichop = Vr 5*~ Rs *Outline Drawing (Unit : mm) ! Although we are constantly making every effort to improve the qu ality and reliability of our products, there nevertheless remain s a certain probability that the semiconductor products may occasionally fai unction. Please take careful precautions against produc l or malf t failures or malfunctions to avoid any injuries, fire accidents or social s by implementing safety designs such as redundancy designs, desfor fi re los igns spread prevention, and designs for preventing malfunctions. ! Our semiconductor products listed in this document are notned or manufactured to be used in devices or systems requiring desig extremely high levels of quality and reliability, or the failure unction of which may directly threaten human lives or ca injury. or malf use In the cases where the products are to be used in devices or sys for special applications or devices or systems for speciali tems zed applications shown below, always make sure to consult us in advance. Special Applications Transportation devices (automotive, marine, etc.), communication for core network, traffic signal devices, fire preventi on/anticrime devices devices, various safety devices, medical devices, etc. Specialized Applications Nuclear power control systems, aircraft and aerospace devices,ubmarine relay devices, and systems for preserving life, etc. s Even if it is not for a special or specialized application, when products are to be used for devices or systems that are desi to last for IC red a long period under continuous operation, please make sure to co our sales representative in advance. nsult *oe We reserve the right to make any changes to the contents of th is manual without prior notice in accordance with modifications IC products. to *oe Details of specifications should be exchanged at the adoption the IC products. of *oe All information included in this manual is believed to be accu and reliable. However, our company takes no responsibilityany injury or rate for damage incurred when using the IC products as described in manual. Neither do we take any responsibility for issues ar from this ising infringement of patent or other rights caused by using thi s manual. *oe The provision of this manual does not guarantee the right to u se any third party's patent or other rights, or grant permission the patent to use or other rights of our company. *oe No part of this manual may be reproduced or copied without the specific written consent of Shindengen Electric Mfg. Co., Ltd. |
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