SLA7033M

SLA7032M SANKEN | Alldatasheet

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28 SLA7032M/SLA7033M

Parameter Symbol SLA7032M SLA7033M Units min typ max min typ max Control supply current IS 10 15 10 15 mACondition VS=44V V S=44V Control supply voltage VS 10 24 44 10 24 44 V FET Drain-Source V DSS 100 100 Vvoltage Condition V S=44V, IDSS =250µAV S =44V, IDSS =250µA FET ON voltage VDS 0.6 0.85 VCondition ID =1A, VS =14V I D =3A, VS =14V FET diode forward voltageVSD 1.1 2.3 VCondition ISD =1A I SD =3A FET drain leakage currentIDSS 250 250 µACondition VDSS =100V, VS=44V V DSS =100V , VS =44V VIH 2.0 2.0 Condition ID =1A I D=3A VVIL 0.8 0.8 Condition VDSS =100V V DSS =100V IN terminal V IH 2.0 2.0 Condition VDSS =100V V DSS =100V VVIL 0.8 0.8 Condition ID =1A I D=3A II ±1 ±1 µACondition VS =44V , VI=0 or 5V V S=44V, VI=0 or 5V VSYNC 4.0 4.0 Condition Synchronous chopping mode Synchronous chopping mode VVSYNC 0.8 0.8 SYNC terminal Condition Asynchronous chopping mode Asynchronous chopping mode ISYNC 0.1 0.1 Condition VS=44V, VYS =5V V S=44V, VYS =5V mAISYNC −0.1 −0.1 Condition VS=44V, VYS =0V V S=44V, VYS =0V VREF 0 2.0 0 2.0 Condition Reference voltage input Reference voltage input VVREF 4.0 5.5 4.0 5.5 REF terminal Condition Output FET OFF Output FET OFF IREF ±1 ±1 µACondition No synchronous trigger No synchronous trigger R REF 40 40 ΩCondition Resistance between GND and REF terminal at synchronous trigger Resistance between GND and REF terminal at synchronous trigger Tr 0.5 0.5 Condition VS =24V , ID =1A V S=24V, ID =1A Switching time Tstg 0.7 0.7 µs Condition VS =24V , ID =1A V S=24V, ID =1A Tf 0.1 0.1 Condition VS =24V , ID =1A V S=24V, ID =1A Chopping OFF time TOFF 12 12 µsCondition VS=24V V S=24V 2-Phase Stepper Motor Unipolar Driver ICs SLA7032M/SLA7033M2-Phase/1-2 Phase Excitation (Ta=25°C) Parameter Symbol Ratings UnitsSLA7032M SLA7033M Motor supply voltage V CC 46 V Control supply voltage V S 46 V FET Drain-Source voltage V DSS 100 V TTL input voltage V IN −0.3 to +7 VSYNC terminal voltage V SYNC −0.3 to +7 Reference voltage V REF −0.3 to +7 V Sense voltage V RS −5 to +7 V Output current I O 1.5 3 A Power dissipation P D1 4.5 (Without Heatsink) W P D2 35 (Tc = 25°C) W Channel temperature T ch +150 °C Storage temperature T stg −40 to +150 °C DC characteristics I Absolute Maximum Ratings I Electrical Characteristics OUT OUT Input current Input voltage Input current¨ Input current Input current Internal resistance AC characteristics

SLA7032M/SLA7033M2-Phase Stepper Motor Unipolar Driver IC (2-Phase/1-2 Phase Excitation) Rs Rs 81 8 Active Low 11112 34 14 15 10 Vb (5V) Vcc (46Vmax) RsA GA GB RsBR EF AR EF B OUT A SLA7032M SLA7033M VsA VsB OUT A INA INA INB INB OUT B OUT B INA INA INB INB SYNC A SYNC B Active Low I Internal Block Diagram I Diagram of Standard External Circuit (Recommended Circuit Constants) Active High 1, 8, 11, 18pin Description of pins 9 2 4 3 14 15 13 10 Chopping blanking timer (5 s typ) Synchronous chopping circuit Synchronous chopping circuit MOSFET gate drive circuit MOSFET gate drive circuit IN A IN A IN B IN B Vs A Vs B Rs A SYNC A SYNC B G A R EF A R EF B G B Oscillator Oscillator Reg. Reg. Rs B Excitation input Active H OUT A OUT A OUT B OUT B 1pin 8pin 11pin 18pin Active L OUT A OUT A OUT B OUT B 567 1 781 16 11 1812 Chopping OFF timer (12 s typ) µ Chopping blanking timer (5 s typ)µ µ Chopping OFF timer (12 s typ)µ Rs Rs 81 8 Active High 11112 34 14 15 10 Vb (5V) Vcc (46Vmax) RsA GA GB RsBR EF AR EF B OUT A SLA7032M SLA7033M VsA VsB OUT A INA INA INB INB OUT B OUT B INA INA INB INB SYNC A SYNC B (1 to 2W) r1 :4 kΩ r2 :1 kΩ (VR) R s :1Ω typ(7032M) 0.68Ω typ(7033M) r1 :4 kΩ r2 :1 kΩ (VR) R s :1Ω typ(7032M) 0.68Ω typ(7033M) 1-2 phase excitation clock 0 1 2 3 4 5 6 7 0 1 2 3 INA H H LLLLLH H HLL INA LLLH H HLLLLL H INB LH HHLLLLLHH H INB LLLLL H H H LLLL Excitation signal time chart 2-phase excitation clock 0 1 2 3 0 1 INA HLLH H L INA LHHL L H INB HH L LH H INB LL H HL L Excitation signal time chart 2-phase excitation clock 0 1 2 3 0 1 INA LHHL L H INA HLLH H L INB LL H HL L INB HH L LH H 1-2 phase excitation clock 0 1 2 3 4 5 6 7 0 1 2 3 INA LLHHHHHL L LHH INA HHHLL LHHHHHL INB HL L LHHHHHLL L INB HHHHHL LLHHHH (1 to 2W)

30 SLA7032M/SLA7033M

SLA7032M/SLA7033M2-Phase Stepper Motor Unipolar Driver IC (2-Phase/1-2 Phase Excitation) I External Dimensions (Unit: mm) 31±0.2 24.4±0.2 16.4±0.2 3.2±0.15φ 16±0.2 13±0.2 9.9±0.2 Part No. Lot No. 1.7±0.1 2.45±0.2 R-End 6.7±0.5 9.7 –0.5 (3) 0.55 +0.2 –0.1 4±0.7 +0.2 –0.1 0.65 +0.2 –0.1 31.3±0.2 Forming No. No.871 Forming No. No.872 0.65 +0.2 –0.1 1 +0.2 –0.1 3±0.60.55 +0.2 –0.12.2±0.6 6±0.6 7.5±0.6 4.6±0.61.6±0.6

SLA7032M/SLA7033M2-Phase Stepper Motor Unipolar Driver IC (2-Phase/1-2 Phase Excitation) I Outline SLA7032M (SLA7033M) is a stepper motor driver IC developed to reduce the number of external parts required by the conven- tional SLA7024M (SLA7026M). This IC successfully eliminates the need for some external parts without sacrificing the features of SLA7024M (SLA7026M). The basic function pins are com- patible with those of SLA7024M (SLA7026M). I Notes on Replacing SLA7024M (SLA7026M) SLA7032M (SLA7033M) is pin-compatible with SLA7024M (SLA7026M). When using the IC on an existing board, the fol- lowing preparations are necessary: (1) Remove the resistors and capacitors attached for setting the chopping OFF time. (r 3, r4, C1, and C2 in the catalog) (2) Remove the resistors and capacitors attached for preventing noise in the detection voltage VRS from causing malfunction- ing and short the sections from which the resistors were re- moved using jumper wires. (r5, r6, C3, and C4 in the catalog) (3)Normally, keep pins 2 and 13 grounded because their func- tions have changed to synchronous and asynchronous switching (SYNC terminals). For details, see "Circuit for Pre- venting Abnormal Noise When the Motor Is Not Running (Syn- chronous circuit)." (Low: asynchronous, High: synchronous) I Circuit for Preventing Abnormal Noise When the Motor Is Not Running (Synchronous Circuit) A motor may generate abnormal noise when it is not running. This phenomenon is attributable to asynchronous chopping between phases A and B. To prevent the phenomenon, SLA7032M (SLA7033M) contains a synchronous chopping circuit. Do not leave Synchronous circuit operating waveform SYNC_A SYNC voltage : Low SYNC voltage : High → Chopping asynchronous → Chopping synchronous TTL, etc. SYNC_B SLA7032M SLA7033M Sync/async switching signal To comparator (high impedance)REF_A REF_B V REF VREF waveform VREF SLA7032M SLA7033M FET A/A gate drive signal 40Ω (typ.) 40Ω (typ.) FET B/B gate drive signal ONE SHOT (tw=2 S)µ ONE SHOT (tw=2 S)µ VREF VRS Phase A 0 VREF VRS Synchronous circuit ONSynchronous circuit OFF Phase B 0 Application Notes the SYNC terminals open because they are for CMOS input. Connect TTL or similar to the SYNC terminals and switch the SYNC terminal level high or low. When the motor is not running, set the TTL signal high (SYNC terminal voltage: 4 V or more) to make chopping synchronous. When the motor is running, set the TTL signal low (SYNC terminal voltage: 0.8 V or less) to make chopping asynchronous. If chop- ping is set to synchronous at when the motor is running, the motor torque deteriorates before the coil current reaches the set value. If no abnormal noise occurs when the motor is not running, ground the SYNC terminals (TTL not necessary). The built-in synchronous chopping circuit superimposes a trigger signal on the REF terminal for synchronization between the two phases. The figure below shows the internal circuit of the REF terminal. Since the ∆V REF varies depending on the values of R1 and R2, determine these values for when the motor is not run- ning within the range where the two phases are synchronized.

32 SLA7032M/SLA7033M

SLA7032M/SLA7033M2-Phase Stepper Motor Unipolar Driver IC (2-Phase/1-2 Phase Excitation) R S Vb(5V) 9,(10) 3,(14) Vb(5V) 9,(10) 3,(14) rX Tr Power down signal I Determining the Output Current Fig. 1 shows the waveform of the output current (motor coil cur- rent). The method of determining the peak value of the output current (IO ) based on this waveform is shown below. (Parameters for determining the output current IO ) Vb: Reference supply voltage r1,r2: Voltage-divider resistors for the reference supply voltage RS : Current sense resistor (1) Normal rotation mode I O is determined as follows when current flows at the maximum level during motor rotation. (See Fig.2.) (2) Power down mode The circuit in Fig.3 (rx and Tr) is added in order to decrease the coil current. IO is then determined as follows. Equation (2) can be modified to obtain equation to determine rx. Fig. 4 and 5 show th e graphs of equations (1) and (2) respec- tively. Fig. 2 Normal mode Phase A Phase A IO Fig. 1 Waveform of coil current (Phase A excitation ON) Fig. 3 Power down mode 001234 Current sense resistor R S (Ω ) Output current IO (A) IO = r1+r2 RS r1=510Ω r2=100Ω rx=∞ Vb=5V r2 · Vb Fig. 4 Output current IO vs. Current sense resistor RS Fig. 5 Output current IOPD vs. Variable current sense resistor rx 2.0 1.5 1.0 0.5 00 200 400 600 800 Variable current sense resistor r X (Ω ) Output current IOPD (A) 1000 1200 R S =0.5Ω R S =0.8Ω R S =1Ω IOPD = 1+ RS r1=510Ω r2=100Ω Vb=5V 1 · Vb r1(r2+rX) r2 · rX rX = 1 Vb R s • IOPD −1 − r1+r2 Vb R S r1(r2+rX ) r2 • rX Vb R S

SLA7032M/SLA7033M2-Phase Stepper Motor Unipolar Driver IC (2-Phase/1-2 Phase Excitation) 100 500 1K 5K Case temperature rise C–a (°C) Response frequency (pps) Without heatsink Natural cooling Motor : 23PM-C705 Motor current IO =1.5A Ta=25°C VCC =24V, VS=24V 2-phase excitation TC ( 4 pin) 0200 500 1K Case temperature rise C–a (°C) Motor : PH265-01B Motor current IO =0.8A Ta=25°C VCC =24V, VS=24V 2-phase excitation Response frequency (pps) Without heatsink Natural cooling TC ( 4 pin) SLA7032M SLA7033M Thermal characteristics Fig. 7 Temperature rise Fig. 6 Heat dissipation per phase PH vs. Output current IO Output current IO (A) Heat dissipation per phase PH (W) Motor : 23LM-C004 Holding mode 1.2 1.0 0.8 0.6 0.4 0.2 VCC =44V 36V 24V 15V ∆Tj–a ∆TC –a ∆Tj 102 3 4 5 ∆TC Natural cooling Without heatsink 150 100 Total Power (W) (°C) Heat dissipation per phase P H (W) Motor : 23PM-C503 Holding mode 36V 15V 24VVCC =44V 4.0 3.0 2.0 1.0 00 1.0 2.0 3.0 Output current I O (A) SLA7032M SLA7033M I Thermal Design An outline of the method for calculated heat dissipation is shown below. (1) Obtain the value of PH that corresponds to the motor coil current IO from Fig. 6 "Heat dissipation per phase PH vs. Output current IO ." (2)The power dissipation Pdiss is obtained using the following formula. 2-phase excitation: Pdiss ≅ 2PH +0.015×VS (W) 1-2 phase excitation: Pdiss ≅ PH +0.015×VS (W) (3)Obtain the temperature rise that corresponds to the computed value of Pdiss from Fig. 7 "Temperature rise."

34 SLA7032M/SLA7033M

SLA7032M/SLA7033M2-Phase Stepper Motor Unipolar Driver IC (2-Phase/1-2 Phase Excitation) I Supply Voltage VCC vs. Supply Current ICC Supply current I CC (mA) Supply voltage VCC (V) 500 400 300 200 100 10 20 30 40 50 0.2A 0.5A IO =1A Motor : 23LM-C004 1-phase excitation Holding mode IO : Output current I Torque Characteristics 100 Pull-out torque (kg-cm) Response frequency (pps) 2.0 1.5 1.0 0.5 0 5K 1K500 Motor : 23LM-C202 Output current IO =0.8A Motor supply voltage VCC =24V 2-phase excitation Supply current I CC (A) Supply voltage VCC (V) 1.5 1.0 0.5 10 20 30 40 50 Motor : 23PM-C503 1-phase excitation Holding mode I O : Output current IO =1A IO =2A IO =3A 100 Pull-out torque (kg-cm) Response frequency (pps) 6.0 5.0 4.0 3.0 2.0 1.0 0 5K 10K1K500 Motor : 23PM-C705 Output current IO =2.5A Motor supply voltage VCC =24V 2-phase excitation SLA7032M SLA7033M SLA7032M SLA7033M

SLA7032M/SLA7033M2-Phase Stepper Motor Unipolar Driver IC (2-Phase/1-2 Phase Excitation) I Handling Precautions The input terminals of this product use C-MOS circuits. Observe the following precautions. G Carefully control the humidity of the room to prevent the buildup of static electricity. Since static electricity is particularly a problem during the winter, be sure to take sufficient precautions. G T ake care to make sure that static electricity is not applied to the IC during wiring and assembly. T ake precautions such as shorting the terminals of the printed wiring board to ensure that they are at the same electrical potential. Active Low Input Corresponding output INA (pin6) OUT A (pin8) INA (pin5) OUT A (pin1) INB (pin17) OUT B (pin18) INB (pin16) OUT B (pin11) Active High Input Corresponding output INA (pin6) OUT A (pin1) INA (pin5) OUT A (pin8) INB (pin17) OUT B (pin11) INB (pin16) OUT B (pin18) I Note The excitation input signals of the SLA7032M, SLA7033M can be used as either Active High or Active Low. Note, however, that the corresponding output (OUT) changes depending on the input (IN). I Chopper frequency vs. Supply voltage f (kHz) VCC (V) 0 10 20 30 40 50 Motor : 23LM-C202 IO = 0.8A at VCC =24V R S=1Ω I Chopper frequency vs. Output current f (kHz) IO (A) Motor : 23LM-C202 VCC =24V R S=1Ω