SLA7020

SLA7020M SANKEN | Alldatasheet

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Absolute Motor supply FET output Control TTL input Reference Output Power Channel Storage maximum Voltage breakdown voltage voltage voltage current dissipation temperature temperature ratings voltage Type No. V CC VDS V S V IN VREF IO P D Tch Tstg SLA7020M 1.5 SLA7021M 46 100 32 7 2 3 4.5 (No Fin) 150 –40 to +150 n Characteristics (1) DC Characteristics Electrical Control Control FET turn-on voltage FET drain TTL input TTL input TTL input TTL input TTL input TTL input charac- current voltage leak current current current voltage voltage voltage voltage teristics (OUT) (OUT) (mA) (V) (V) (mA) ( µA) (mA) (V) (V) (V) (V) VS = 30V (7020M) ID =1A, VS =14V V DSS = 100V V IH = 2.4V V IL = 0.4V ID = 1A V DSS = 100V V DSS = 100V I D = 1A(7021M) ID =3A, VS =14V V S = 30V V S = 30V V S = 30V IS VS VDS IDSS IIH IIL VIH VIL V IH VIL Type No. min typ max min typ max min typ max min typ max min typ max min typ max min typ max min typ max min typ max min typ max SLA7020M 0.6 (2) AC Characteristics Electrical FET diode Switching time charac- forward voltage teristics (V) ( µs) (7020M) ISD = 1A V S = 24V (7021M) ISD = 3A I D = 1A V SD Tr Tstg Tf Type No. min typ max min typ max min typ max min typ max SLA7020M 1.1 0.5 0.7 0.1 SLA7021M 2.3 Unipolar Driver ICs WITH MOSFETs

n Internal circuit diagram (enclosed with chain line) R S C 3 Reg Reg INA OUT A OUT A 15 8 VCC VS

14 INB

Vb(5V) TDA REF A GND A GND B REF B TDB R SB R S 10 15OUT B OUT B – + D bD a Vs=10~30V R·C for setting chopper OFF time V S r5/r6 C 3/C 4 Vb Reference voltage r3/r4 C 1/C 2 R·C for protection against chopping malfunctions REF Current peak detector circuit T d Chopper OFF time control circuit GND Excitation signal transfer circuit IN OUT OUT Auxiliary power supply Excitation signal VCC Motor main power supply R S R S Current detection resistor Current control and counter EMF canceller circuit Motor D a/D b

n Diagram of standard external circuit (Recommended circuit constants) n External dimensions (Unit: mm) Excitation signal time chart 2-phase excitation clock 01230 1 INA HHL LH H INB LHHLL H 1-2 phase excitation clock 0 1 2 3 4 5 6 7 0 1 2 3 INA HHHHL L L LHHHH tdA LLLHLLLHLLLH INB L LHHHHL L L LHH tdB LHLLLHLLLHLL

• tdA and tdB are signals before the inverter stage. r1 510Ω r2 100Ω (VR) r3 47kΩ r4 47kΩ r5 2.4kΩ r6 2.4kΩ C 1 470pF C 2 470pF C 3 2200pF C 4 2200pF 7020M 7021M Da. Db EK03 RK34 Rs 1 Ω typ 0.68 Ω typ Forming number No. 853 Forming number No. 855 Epoxy resin package 81 61 0 1 5 VS OUT A OUT B OUT BOUT A R SA REF A REF B R SB G A G B 7 3 13 9 4 12 C 4 r6r5 r1r4r3 C 1 C 2 TdA TdB INA INB INA INB VCC (46V max) VREF (5V) RsRs C 3 SLA7020M SLA7021M11 Open collector tdA tdB D b VS (10~30V) D a 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 Type 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 1.15 +0.2 –0.1 0.65 +0.2 –0.1 31.3±0.2 0.65 +0.2 –0.1 3±0.6 0.55 +0.2 –0.12.2±0.4 6.3±0.6 7.5±0.6 4.6±0.6 1.6±0.6 1.15 +0.2 –0.1

SLA7024M, SLA7026M, SLA7027MU, SLA7022MU, SLA7029M, SMA7022MU, SMA7029M, SLA7020M, SLA7021M and SDK03M Fig. 1 Waveform of coil current (Phase A excitation ON) Fig. 3 Circuit for fixing the coil current Fig. 4 Circuit for fixing the coil current Fig. 5 Circuit for fixing the coil current Fig. 2 Circuit for fixing the coil current Application Note n Determining the output current Fig. 1 shows the waveform of the output current (motor coil current). The method of determining the peak value (lo) of the output current based on this waveform is shown below. <Parameters for determining the output current lo> V b : Reference supply voltage r1, r2 : Voltage-divider resistors for the reference supply voltage R s : Current detection resistor (1) Normal rotation mode lo is determined as follows when current flows at the maximum level during motor rotation. See Fig. 2, 3 and r 2 Vb (2) Power down mode The circuits in Fig. 5, 6 and 7 (rx and Tr) are added in order to decrease the coil current. lo is then determined as follows. b 1+ r2•rx To determine rx, equation w can be modified to obtain equation e. . . Phase A Phase A IO SLA7022MU SLA7029M SMA7022MU SMA7029M SLA7020M SLA7021M R S C 3r2 Vb(5V) 7,(9) 3,(13) SLA7024M SLA7026M SLA7027MU R S C 3r2 Vb(5V) 9,(10) 3,(14) SDK03M R S C 3r2 Vb(5V) 13 15 SLA7022MU SLA7029M SMA7022MU SMA7029M SLA7020M SLA7021M R S C 3 Vb(5V) 7,(9) 3,(13) rX Tr Power down signal . .

SLA7024M, SLA7026M, SLA7027MU, SLA7022MU, SLA7029M, SMA7022MU, SMA7029M, SLA7020M, SLA7021M and SDK03M Application Note Fig. 6 Circuit for fixing the coil current Fig. 7 Circuit for fixing the coil current Fig. 8 and 9 show the graphs of equations q and w, respectively. Fig. 8 Output current Io vs. Current detection resistor Rs Fig. 9 Output current lOPD vs. Variable current resistor rx NOTE: Ringing noise is produced in the current detection resistor Rs when the MOSFET is switched ON and OFF through chopping. This noise is also generated in feedback signals from Rs which may therefore causes the comparator to malfunction. To prevent chopping malfunctions, r 5(r6) and C3(C4) are added in order to act as noise filter. However, when the values of these constants are increased, the response from Rs to the comparator becomes slow. Hence, the value of the output current lo is higher to some extent than the computed value. SLA7024M SLA7026M SLA7027MU C 3 r1 r6 Vb(5V) 9,(10) 3,(14) rX Tr Power down signal SDK03M R S C 3 Vb(5V) rX Tr Power down signal 13 15 001234 Current detection resistor R S (Ω ) Output current IO (A) SLA7024M, SLA7026M, SLA7029M, SLA7027MU, SLA7022MU, SLA7020M, SLA7021M, SMA7029M, SMA7022MU, SDK03M IO = r1+r2 RS r1=510Ω r2=100Ω rx=∞ Vb=5V r2 · Vb 1.5 0.5 00 2.0 4.0 6.0 8.00 Variable current resistor rX (Ω ) Output current IOPD (A) SLA7024M, SLA7026M, SLA7029M, SLA7027MU, SLA7022MU, SLA7020M, SLA7021M, SMA7029M, SMA7022MU, SDK03M 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

SLA7024M, SLA7026M, SLA7027MU, SLA7022MU, SLA7029M, SMA7022MU, SMA7029M, SLA7020M, SLA7021M and SDK03M Application Note n Determining the chopper frequency Determining TOFF : SLA7000M series, SMA7000M series and SDK03M are self-excited choppers. The chopping OFF time T OFF is fixed by r3/C1 and r4/C2 connected to terminal Td. T OFF can be computed through the following formula: 22TOFF = –r3•C1Rn(1– ) = –r4•C2Rn(1– )Vb Vb The circuit constants and the TOFF value shown below are recommended. TOFF = 12 µs r3 = 47 KΩ C 1 = 500 pF Vb =5 V n Thermal design An outline on the method of computing heat dissipation is shown below. (1) Obtain the PH that corresponds to the motor coil current IO from Fig. 11 “Heat dissipation per phase PH vs. Out- put current lo”. (2) The power dissipation Pdiss is obtained through the following formula.

• SLA7000M and SMA7000M series 2-phase excitation : Pdiss = 2PH + 0.015 x Vs (W) 31-2 phase excitation : Pdiss = PH + 0.015 x Vs (W)2
• SDK03M 2-phase excitation : Pdiss = PH + 0.015 x Vs (W) 31-2 phase excitation : Pdiss = PH + 0.015 x Vs (W)4 (3) Obtain the temperature rise that corresponds to the computed Pdiss from Fig. 12 “Temperature rise curve.” Fig. 10 Chopper frequency vs. Motor coil resistance . . . . . . . . Fig. 11 Heat dissipation per phase PH vs. Output current lo Output current IO (A) Heat dissipation per phase PH (W) Typ. Motor : 23LM-C004 Holding mode VCC =44V 36V 24V 15V SLA7024M, SLA7029M, SMA7029M and SLA7020M 1.2 1.0 0.8 0.6 0.4 0.2 02468 1 0 1 2 1 4 1 6 Motor coil resistance Rm (Ω ) ON time TON ( s) VCC =24V VCC =36V TOFF =12 s R S =1Ω Lm =1~3ms Rm = =r3 47kΩ 500PF Chopping frequency (KHz) µ µ Heat dissipation per phase P H (W) Typ. Motor : 23PM-C503 Rm=1.16 Ω / Lm=2.9mA/ Holding mode φ φ 36V 15V 24V SLA7026M and SLA7021M VCC =44V 4.0 3.0 2.0 1.0 0 1.0 2.0 3.0 Output current I O (A) 1.4 1.2 0.8 0.6 0.4 0.2 0 0 0.2 0.4 0.6 0.8 1 36V 24V 15V VCC =44V Heat dissipation per phase P H (W) SLA7022MU, SLA7027MU, SMA7022MU and SDK03M Output current IO (A) Typ. Motor : 23LM-C202 Holding mode

SLA7024M, SLA7026M, SLA7027MU, SLA7022MU, SLA7029M, SMA7022MU, SMA7029M, SLA7020M, SLA7021M and SDK03M Application Note Fig. 12 Temperature rise curve Comparison of losses Power dissipation P H (W) Supply voltage VCC (V) 0 10 20 30 40 50 Motor : 23LM-C202 IO : Output current 2-phase excitation, holding mode IO =1A IO =1A SLA7024M, SLA7029M, SMA7029M and SLA7020M Sanken product : SI-7300A ΔTj–a ΔTC–a ΔTj SLA7000M series 10 2345 ΔTC Natural cooling Without heatsink 150 100 Total power (W) (°C)ΔTj–a ΔTC–a ΔTj SMA7000M series 102 3 4 ΔTC Natural cooling Without heatsink 150 100 Total power (W) (°C) ΔTj SDK03M 102 3 ΔTC Glass epoxy board (mounted on level surface) (95×69×1.2mm) Natural cooling 150 100 Total power (W) ΔTj–a ΔTC–a (°C)

SLA7024M, SLA7026M, SLA7027MU, SLA7022MU, SLA7029M, SMA7022MU, SMA7029M, SLA7020M, SLA7021M and SDK03M Application Note Heat dissipation characteristics 0200 500 1K 2K Case temperature rise ΔT C–a (°C) SDK03M Response frequency (pps) TC ( 9 pin) Natural cooling Glass epoxy board (mounted on level surface) (95×69×1.2mm) Motor : PH265-01B (Rm=7 Ω / , Lm=9mH/ ) Motor current I O =0.8A Ta=25°C VCC =24V, VS=24V 2-phase excitation φφ 0200 500 1K 2K Case temperature rise ΔT C–a (°C) Motor : PH265-01B (Rm=7 Ω / , Lm=9mH/ ) Motor current IO =0.8A Ta=25°C VCC =24V, VS=24V 2-phase excitation φφ SLA7024M, SLA7029M and SLA7020M Response frequency (pps) Without heatsink Natural cooling TC ( 4 pin) 200 500 1K 2K Case temperature rise ΔT C–a (°C) Motor : PH265-01B (Rm=7 Ω / , Lm=9mH/ ) Motor current IO =0.8A Ta=25°C VCC =24V, VS=24V 2-phase excitation φφ SLA7022MU and SLA7027MU Response frequency (pps) Without heatsink Natural cooling TC ( 4 pin) 0200 500 1K 2K Case temperature rise ΔT C–a (°C) Motor : PH265-01B (Rm=7 Ω / , Lm=9mH/ ) Motor current IO =0.8A Ta=25°C VCC =24V, VS=24V 2-phase excitation φφ SMA7029M Response frequency (pps) Without heatsink Natural cooling TC ( 4 pin) 200 500 1K 2K Case temperature rise ΔT C–a (°C) Motor : PH265-01B (Rm=7 Ω / , Lm=9mH/ ) Motor current IO =0.8A Ta=25°C VCC =24V, VS=24V 2-phase excitation φφ SMA7022MU Response frequency (pps) Without heatsink Natural cooling TC ( 4 pin) 100 500 1K 5K Case temperature rise ΔT C–a (°C) SLA7026M and SLA7021M Response frequency (pps) TC ( 4 pin) Without heatsink Natural cooling Motor : 23PM-C705 (Rm=1.27 Ω / , Lm=1.8mH/ ) VCC =24V, VS=24V, IO =1.5A 2-phase excitation φφ

SLA7024M, SLA7026M, SLA7027MU, SLA7022MU, SLA7029M, SMA7022MU, SMA7029M, SLA7020M, SLA7021M and SDK03M Application Note Supply voltage Vcc vs. Supply current Icc Torque characteristics 100 Pull-out torque (kg-cm) SLA7027MU, SLA7022MU, SMA7022MU and SDK03M Response frequency (pps) 2.0 1.5 1.0 0.5 10k3k1k500 Motor : PX244-02 Output current IO =0.6A Motor supply voltage VCC =24V 2-phase excitation 100 Pull-out torque (kg-cm) SLA7024M, SLA7029M, SMA7029M and SLA7020M Response frequency (pps) 2.0 1.5 1.0 0.5 4k3k2k1k500 Motor : 23LM-C202 (1V/1.1A) Output current IO =0.8A Motor supply voltage VCC =24V 2-phase excitation 100 Pull-out torque (kg-cm) SLA7026M and SLA7021M Response frequency (pps) 6.0 5.0 4.0 3.0 2.0 1.0 10k3k1k500 Motor : 23PM-C705 Rm=1.27Ω / Lm=1.8mH/ VCC =24V IO =2.5A 2-phase excitation φ φ Supply current I CC (mA) SLA7024M, SLA7029M, SMA7029M and SLA7020M Supply voltage VCC (V) 500 400 300 200 100 10 20 30 40 50 Motor : 23LM-C004 (6V/1.2A) 1-phase excitation Holding mode Chopper period T = 47 s I O : Output current IO =0.2A IO =0.5A IO =1A µ Supply current I CC (A) SLA7026M and SLA7021M Supply voltage VCC (V) 1.5 1.0 0.5 10 20 30 40 50 Motor : 23PM-C503 Rm=1.16Ω / Lm=2.9mH/ 1-phase excitation, holding mode I O : Output current IO =1A IO =2A IO =3A φ φ Supply current I CC (mA) SLA7022MU, SLA7027MU, SMA7022MU and SDK03M Supply voltage VCC (V) 500 400 300 200 100 10 20 30 40 50 Motor : 23LM-C202 (4V/1A) 1-phase excitation, holding mode I O : Output current IO =1A 0.4A 0.2A

SLA7024M, SLA7026M, SLA7027MU, SLA7022MU, SLA7029M, SMA7022MU, SMA7029M, SLA7020M, SLA7021M and SDK03M Application Note Chopper frequency vs. Output current n NOTE Either active high or active low excitation input signals can be used for SLA7024M, SLA7026M, SLA7027MU and SDK03M. However, take note of the output that corresponds to a specified input as shown in the table below.

• SLA7024M, SLA7026M and SLA7027MU Active High Input Output INA (6 pin) OUT A (1 pin) INA (5 pin) OUT A (8 pin) INB (17 pin) OUT B (11 pin) INB (16 pin) OUT B (18 pin) Active Low Input Output INA (6 pin) OUT A (8 pin) INA (5 pin) OUT A (1 pin) INB (17 pin) OUT B (18 pin) INB (16 pin) OUT B (11 pin)
• SDK03M Active High Input Output IN1 (6 pin) OUT 1 (1, 16 pin) IN2 (5 pin) OUT 2 (8, 9 pin) Active Low Input Output IN1 (6 pin) OUT 1 (8, 9 pin) IN2 (5 pin) OUT 2 (1, 16 pin) Chopper frequency vs. Supply voltage f (kHz) VCC (V) 0 10 20 30 40 50 Motor : 23LM-C202 (1V/1.1A) IO = 0.8A at VCC =24V R S=1Ω f (kHz) IO (A) Motor : 23LM-C202 (1V/1.1A) VCC =24V R S=1Ω