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DATA SHEET Part No. Package Code No. AN44065A HSOP042-P-0400D Publication date: October 2008 SDL00010BEB 1 AN44065A Contents Overview Features Package Type ........................................................................................................................... 3 ........................................................................................................................... 3 ...................................................................................................................... 3 ............................................................................................................................ 3 Applications ............................................................................................................................... 3 .................................................................................................................. 5 .................................................................................................... 6 ...................................................................................................... 7 ............................................................. 9 Application Circuit Example (Block Diagram) ............................................................................. 4 Pin Descriptions Absolute Maximum Ratings Electrical Characteristics Technical Data Usage Notes Operating Supply Voltage Range ............................................................................................. 6 Electrical Characteristics (Reference values for design) .................................................................................................................. 10 ...................................................................................................................... 20 SDL00010BEB 2 AN44065A AN44065A Driver IC for Stepping Motor Overview AN44065A is a two channels H-bridge driver IC. Bipolar stepping motor can be controlled by a single driver IC. 2-phase,1-2 (type 2) phase, W1-2 phase can be selected. Features 4-phase input (W 1- and 2-phase excitation enabled; exclusive OR function incorporated for simultaneous-ON prevention) Built-in CR chopping (with frequency selected) Built-in thermal protection and low voltage detection circuit Built-in 5-V power supply Applications IC for stepping motor drives Package 28 pin plastic small outline package with heat sink (SOP type) Type Silicon monolithic IC SDL00010BEB 3 AN44065A Application Circuit Example BC1 19 0.01 F BC2 20 PHB1 2 ENABLEB 9 IN3 6 IN2 5 CHARGE PUMP 21 VPUMP 0.01 F Gate Circuit 12 BOUT2 SQ R 13 RCSB 14 BOUT1 VREFB 24 TJMON 10 PWMSW 28 VREFA 23 PWMSW BLANK 22 VM2 25 VCC 0.1 F OSC TSD UVLO 47 F 8 VM1 15 AOUT2 0.1 F 16 RCSA R IN0 3 IN1 4 ENABLEA 7 PHA1 1 S5 VOUT 27 0.1 F VREF VM Gate Circuit 26 GND 17 AOUT1 QS SDL00010BEB 4 AN44065A Pin Descriptions Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 FIN Pin name PHA1 PHB1 IN0 IN1 IN2 IN3 ENABLEA VM1 ENABLEB TJMON N.C. BOUT2 RCSB BOUT1 AOUT2 RCSA AOUT1 N.C BC1 BC2 VPUMP VM2 VREFA VREFB VCC GND S5 VOUT PWMSW FIN Type Input Input Input Input Input Input Input Power supply Input Output Output Input / Output Output Output Input / Output Output Output Output Output Power supply Input Input Power supply Ground Output Input earth Phase A phase selection input Phase B phase selection input Phase A output torque control 1 Phase A output torque control 2 Phase B output torque control 1 Phase B output torque control 2 Phase A Enable/Disable CTL Motor power supply 1 Phase B Enable/Disable CTL VBE monitor use Phase B motor drive output 2 Phase B current detection Phase B motor drive output 1 Phase A motor drive output 2 Phase A current detection Phase A motor drive output 1 Charge Pump capacitor connection 1 Charge Pump capacitor connection 2 Charge Pump circuit output Motor power supply 2 Phase A torque reference voltage input Phase B torque reference voltage input Signal power supply Signal ground Internal reference voltage (5-V output) PWM frequency selection input Description SDL00010BEB 5 AN44065A Absolute Maximum Ratings A No. 1 2 3 4 5 6 7 8 Parameter Supply voltage1 (Pin 8, Pin 22) Supply voltage2 (Pin 25) Power dissipation Operating ambient temperature Storage temperature Output pin voltage (Pin 12, Pin 14, Pin 15, Pin 17) Motor drive current (Pin 12, Pin 14, Pin 15, Pin 17) Flywheel diode current (Pin 12, Pin 14, Pin 15, Pin 17) Symbol VM VCC PD Topr Tstg VOUT IOUT If Rating 30 - 0.3 to +6 0.717 -20 to +70 -55 to +150 30 1.5 1.5 Unit V V W C C V A A Note *1 *1 *2 *3 *3 *1 *1 *1 Note) *1: Do not apply current or voltage from outside to any pin not listed above. In the circuit current, (+) means the current flowing into IC and (-) means the current flowing out of IC. *2: The power dissipation shown is the value in free-air for the independent IC package. When using this IC, refer to the PD - Ta diagram in the Technical Data and use under the condition not exceeding the allowable value. *3: Except for the storage temperature, operating ambient temperature, and power dissipation all ratings are for Ta = 25C. Operating Supply Voltage Range Parameter Operating supply voltage range1 Operating supply voltage range2 Symbol VM VCC Range 18.0 to 28.0 4.5 to 5.5 Unit V V Note Note) The values under the condition not exceeding the above absolute maximum ratings and the power dissipation. SDL00010BEB 6 AN44065A Electrical Characteristics at VM = 24 V, VCC = 5 V Note) Ta = 25C2C unless otherwise specified. B No. Output Drivers 1 2 3 4 5 Parameter Symbol Conditions Limits Min VM - 0.75 -- 0.5 -- -- Typ VM - 0.5 0.55 1.0 10 3.7 Max Unit Not e High-level output saturation voltage Low-level output saturation voltage Flywheel diode forward voltage Output leakage current 1 Supply current (with two circuits turned off) VOH VOL VDI ILEAK1 IM I = -1.0 A I = 1.0 A I = 1.0 A VOUT = 30 V, VRCS = 0 V ENABLEA = ENABLEB = 5 V -- 0.825 1.5 50 5.7 V V V A mA -- -- -- -- -- I/O Block 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 Supply current High-level IN input voltage Low-level IN input voltage High-level IN input current Low-level IN input current High-level PHA1/PHB1 input voltage Low-level PHA1/PHB1 input voltage High-level PHA1/PHB1 input current Low-level PHA1/PHB1 input current High-level ENABLEA/ENABLEB input voltage Low-level ENABLEA/ENABLEB input voltage High-level ENABLEA/ENABLEB input current Low-level ENABLEA/ENABLEB input current High-level PWMSW input voltage Low-level PWMSW input voltage High-level PWMSW input current Low-level PWMSW input current ICC VINH VINL IINH IINL VPHAH VPHBH VPHAL VPHBL IPHAH IPHBH IPHAL IPHBL VENABLEAH VENABLEBH VENABLEAL VENABLEBL ENABLEA = ENABLEB = 5 V -- -- IN0 = IN1 = IN2 = IN3 = 5 V IN0 = IN1 = IN2 = IN3 = 0 V -- -- PHA1 = PHB1 = 5 V PHA1 = PHB1 = 0 V -- -- -- 2.2 GND - 10 - 15 2.2 GND 25 - 15 2.2 GND - 10 - 15 2.2 GND 25 - 15 1.4 -- -- -- -- -- -- 50 -- -- -- -- -- -- -- 50 -- 2.2 VCC 0.6 10 15 VCC 0.6 100 15 VCC 0.6 10 15 VCC 0.6 100 15 mA V V A A V V A A V V A A V V A A -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- IENABLEAH ENABLEA = NABLEB = 5 V IENABLEBH IENABLEAL ENABLEA = ENABLEB = 0 V IENABLEBL VPWMSWH VPWMSWL IPWMSWH IPWMSWL -- -- PWMSW = 5 V PWMSW = 0 V SDL00010BEB 7 214406500705100 AN44065A Electrical Characteristics at VM = 24 V, VCC = 5 V (continued) Note) Ta = 25C2C unless otherwise specified. B No. Parameter Symbol Conditions Limits Min Typ Max Unit Note Torque Control Block 23 24 25 26 27 28 29 Input bias current PWM frequency 1 PWM frequency 2 Pulse blanking time Cmp threshold H (100%) Cmp threshold C (67%) Cmp threshold L (33%) IREFA IREFB fPWM1 fPWM2 TB VTH VTC VTL VREFA = VREFB = 5 V PWMSW = 0 V PWMSW = 5 V VREFA = VREFB = 0 V IN0 = IN1 = 0 V IN2 = IN3 = 0 V IN0 = 5 V, IN1 = 0 V IN2 = 5 V, IN3 = 0 V IN0 = 0 V, IN1 = 5 V IN2 = 0 V, IN3 = 5 V 70 38 19 0.6 479 308 151 99.5 58 29 1.2 503 333 167 130 78 39 1.8 528 359 184 A kHz kHz s mV mV mV -- -- -- -- -- -- -- Reference Voltage Block 30 31 Reference voltage Output impedance VS5 VOUT VM = 24 V, IS5 VOUT = -2.5 mA ZS5 VOUT VM = 24 V, IS5 VOUT = -5 mA 4.5 -- 5.0 14 5.5 21 V -- -- SDL00010BEB 8 AN44065A Electrical Characteristics (Reference values for design) at VM = 24 V, VCC = 5 V Note) Ta = 25C2C unless otherwise specified. B No. Output Drivers 32 33 34 Parameter Symbol Test circuits Conditions Reference Min Typ Max Unit Note Output slew rate 1 Output slew rate 2 Dead time VTr VTf TD TSDon TSD -- -- -- Rising edge Falling edge -- -- -- -- 240 240 2.2 -- -- -- V/s V/s s C C -- -- -- Thermal Protection 35 36 Thermal protection operating temperature Thermal protection hysteresis width -- -- -- -- -- -- 155 45 -- -- -- -- Note) The above characteristics are reference values for design of the IC and are not guaranteed by inspection. If a problem does occur related to these characteristics, Panasonic will respond in good faith to user concerns. SDL00010BEB 9 AN44065A Technical Data I/O block circuit diagrams and pin function descriptions Note) The characteristics listed below are reference values based on the IC design and are not guaranteed. Pin No. Waveform and voltage Internal circuit Impedance Description Pin 1 PHA1 2 PHB1 28 PWMSW 1 2 28 -- 1 100k Pin1: Phase A phase selection input 2: Phase B phase selection input 28: PWM frequency selection input 100k 3 4 5 6 7 9 Pin 3 IN0 4 IN1 5 IN2 6 IN3 7 ENABLEA 9 ENABLEB -- 3 Pin3: Phase A output torque control 1 4: Phase A output torque control 2 5: Phase B output torque control 1 6: Phase B output torque control 2 7: Phase A Enable/Disable CTL 9: Phase B Enable/Disable CTL Pin 12 BOUT2 14 BOUT1 12 13 14 12 -- 0.6 Pin12: Phase B motor drive output 2 13: Phase B current detection 14: Phase B motor drive output 1 RCSB 13 SDL00010BEB 10 AN44065A Technical Data (continued) I/O block circuit diagrams and pin function descriptions (continued) Note) The characteristics listed below are reference values based on the IC design and are not guaranteed. Pin No. Waveform and voltage Internal circuit Impedance Description Pin 15 AOUT2 17 AOUT1 15 16 17 -- 15 0.6 Pin15: Phase A motor drive output 2 16: Phase A current detection 17: Phase A motor drive output 1 RCSA 16 19 -- BC1 19 Pin19: Charge Pump capacitor connection 1 20 21 -- BC2 VPUMP Pin20: Charge Pump capacitor connection 2 21: Charge Pump circuit output 20 21 SDL00010BEB 11 AN44065A Technical Data (continued) I/O block circuit diagrams and pin function descriptions (continued) Note) The characteristics listed below are reference values based on the IC design and are not guaranteed. Pin No. Waveform and voltage Internal circuit Pin 23 VREFA Impedance Description 23 24 VREFB 23 24 -- Pin23: Phase A torque reference voltage input 50.25k 24: Phase B torque reference voltage input 10 -- TJMON 10 Pin10: VBE monitor use 27 -- 27 S5 VOUT 14 Pin27: Internal reference voltage (5-V output) SDL00010BEB 12 AN44065A Technical Data (continued) I/O block circuit diagrams and pin function descriptions (continued) Note) The characteristics listed below are reference values based on the IC design and are not guaranteed. Pin No. Waveform and voltage Internal circuit Impedance Description VCC (Pin 25) VM(Pin 8, Pin 22) Symbols -- Diode Zener diode Ground (FIN) -- -- SDL00010BEB 13 AN44065A Technical Data (continued) Control mode 1. Truth table ENABLEA/ENABLEB "L" "L" "H" IN0/IN2 "L" "H" "L" "H" IN1/IN3 "L" "L" "H" "H" PHA1/PHB1 "H" "L" -- AOUT1/BOUT1 "H" "L" OFF Output Current (VREF / 10) x (1 / Rs *) = IOUT (VREF / 10) x (1 / Rs *) x (2 / 3) = IOUT (VREF / 10) x (1 / Rs *) x (1 / 3) = IOUT 0 AOUT2/BOUT2 "L" "H" OFF Note) 1. ENABLEA/ENABLEB = "H" or, IN0 = IN1 = "H"/IN2 = IN3 = "H" , output = OFF 2.*: Rs: current detection region SDL00010BEB 14 AN44065A Technical Data (continued) Control mode (continued) 2. drive of full step (4steps sequence) (IN0 to IN3 = const.) 1 2 3 4 1 2 3 4 VPHA1 VPHA1 VPHB1 VPHB1 flow-in flow-out flow-in FWD flow-in B-ch. Motor current B-ch. Motor current flow-out flow-in A-ch. Motor current flow-out A-ch. Motor current flow-out REV SDL00010BEB 15 AN44065A Technical Data (continued) Control mode (continued) 3. drive of half step (8 steps sequence) (Ex.) 12345678 12345678 VPHA1 VPHB1 VIN0 VIN1 VPHA1 VPHB1 VIN0 VIN1 VIN2 VIN3 VIN2 VIN3 flow-in flow-in FWD flow-in B-ch. Motor current flow-out B-ch. Motor current flow-out flow-in A-ch. Motor current flow-out A-ch. Motor current flow-out REV SDL00010BEB 16 AN44065A Technical Data (continued) Control mode (continued) 4. 1-2 phase excitation (8 steps sequence) (Ex.) 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 VPHA1 VPHB1 VIN0 VIN1 VPHA1 VPHB1 VIN0 VIN1 VIN2 VIN3 VIN2 VIN3 flow-in flow-in flow-in B-ch. Motor current flow-out B-ch. Motor current flow-out flow-in A-ch. Motor current flow-out A-ch. Motor current flow-out FWD REV SDL00010BEB 17 AN44065A Technical Data (continued) Control mode (continued) 5. W1-2 phase excitation (16 steps sequence) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 VPHA1 VPHB1 VIN0 VIN1 VIN2 VIN3 VPHA1 VPHB1 VIN0 VIN1 VIN2 VIN3 flow-in flow-in FWD flow-in B-ch. Motor current flow-out B-ch. Motor current flow-out flow-in A-ch. Motor current flow-out A-ch. Motor current flow-out REV SDL00010BEB 18 AN44065A Technical Data (continued) PD -- Ta diagram SDL00010BEB 19 AN44065A Usage Notes 1. Perform thermal design work with consideration of a sufficient margin to keep the power dissipation based on supply voltage, load, and ambient temperature conditions. (The IC is recommended that junctions are designed below 70% to 80% of Absolute Maximum Rating.) 2. The protection circuit is incorporated for the purpose of securing safety if the IC malfunctions. Therefore, design the protection circuit so that the protection circuit will not operate under normal operating conditions. The temperature protection circuit, in particular, may be destructed before the temperature protection circuit operates if the area of safety operation of the device or the maximum rating is exceeded instantaneously due to the short-circuiting between the output pin and VM pin or a ground fault caused by the output pin and ground pin. 3. Pay utmost attention to the pattern layout in order to prevent the IC from destruction resulting from the short-circuiting of pins. See Pin Descriptions for allocations of the pins of the IC. 4. When driving a motor coil or transformer (L) load, the device may be destructed as a result of a negative or excessive voltage generated at the time of turning the load on and off. Unless otherwise provided in the specifications, do not apply any negative or excessive voltage. 5. Do not make mistakes in the PCB mounting direction. If power is supplied with the pins mounted in the wrong direction, the IC may be destructed. 6. The IC may be destructed by the solder bridge between the pins of semiconductor devices. Fully make a visual check on the PCB before supplying power. Furthermore, the IC may be destructed if conductive foreign matters like solder chips are stuck to the IC during transportation after PCB mounting. Therefore, conduct full technical verification of the mounting quality of the IC. 7. The IC is destructed under an abnormal condition, such as the short-circuiting between the output and VM pins, output and ground pins, or output pins (i.e., load short-circuiting), in which case smoke may be generated. Pay utmost attention to the use of the IC. Pay special attention to the following pins so that they are not short-circuited with the VM pin, ground pin, other output pin, or current detection pin. (1) AOUT1 (pin 17), AOUT2 (pin 15), BOUT1 (pin 14), BOUT2 (pin 12) (2) BC2 (pin 20), VPUMP (pin 21) (3) VM1 (pin 8), VM2 (pin 22), VREG (pin 25) (4) RCSA (pin 16), RCSB (pin 13) The higher the current capacity of power supply is, the higher the possibility of the above destruction or smoke generation. Therefore, it is recommended to take safety countermeasures, such as the use of a fuse. 8. When using the IC for model expansion or new sets, be sure to make full safety checks including a long-term reliability check on each set. 9. Set the value of the capacitor between the VPUMP and GND pins so that the voltage on the VPUMP pin (pin 21) will not exceed 40 V in any case regardless of whether it is a transient phenomenon or not while the motor standing by is started. 10. This IC employs a PWM drive method that switches the high-current output of the output transistor. Therefore, the IC is apt to generate noise that may cause the IC to malfunction or have fatal damage. To prevent these problems, the power supply must be stable enough. Therefore, the capacitance between the VCC and GND pins must be a minimum of 0.1 F and the one between the VM and GND pins must be a minimum of 47 F and as close as possible to the IC so that PWM noise will not cause the IC to malfunction or have fatal damage. SDL00010BEB 20 AN44065A Usage Notes (continued) 11. In order to prevent mistakes in current detection resulting noise, this IC is provided with a pulse blanking time of 1.2 s (typ.). The motor current will not be less than the current determined by blanking time. Pay utmost attention at the time of minute current control. The graph on the right-hand side shows the relationship between the pulse blanking time and minute current value. The increase or decrease in the motor current is determined by the resistance of the internal winding of the motor. RCS current waveform while in normal operation Set current RCS current waveform when the set current is less than the minimum current Minimum current Set current TB 1 fPWM fPWM: PWM frequency (See No. 24,25 of Electrical Characteristics.) TB: Pulse blanking time (See No. 26 of Electrical Characteristics.) 12. A high current flows into the IC. Therefore, the common impedance of the PCB pattern cannot be ignored. Take the following points into consideration and design the PCB pattern of the motor. A high current flows into the line between the VM1 (pin 8) and VM2 (pin 22) pins. Therefore, noise is generated with ease at the time of switching due to the inductance (L) of the line, which may result in the malfunctioning or destruction of the IC (see the circuit diagram on the left-hand side). As shown in the circuit diagram on the right-hand side, the escape way of the noise is secured by connecting a capacitor to the connector close to the VM pin of the IC. This makes it possible to suppress the direct VM pin voltage of the IC. Make the settings as shown in the circuit diagram on the right-hand side as much as possible. Noise is generated with ease Recommended PCB VM GND Low spike amplitude due to the capacitance between the VM pin and ground pin VM VM L IC RCS C C IC RCS GND GND SDL00010BEB GND VM L 21 AN44065A Usage Notes (continued) 13. In the case of measuring the chip temperature of the IC,measure the voltage of TJMON (pin 10) and presume chip temperature from following data. Use the following data as reference data. Before applying the IC to a product, conduct a sufficient reliability test of the IC along with the evaluation of the product with the IC incorporated. The temperature characteristic of TJMON VBE[V] VBE/temp = -1.85 [mV/C] 0 Temp [C] 150 14. Power Supply Sequence If two types of power supply are used Rise: This IC is recommended rise of 5 V power supply before rise of 24 V power supply. Fall : Although there is no particular rule, check that VM fall time is about 1sec. When recommended sequence is difficult, take the diagram below indicates into consideration and design. Also, rise slew rate design VM: below 0.1 V/s, VCC: below 0.1 V/s Power Supply VM VCC Delay: below 100 msec If one type of power supply is used Rise slew rate design VM: below 0.1 V/s 15. Check the risk that is caused by the failure of external components. 1 sec time SDL00010BEB 22 Request for your special attention and precautions in using the technical information and semiconductors described in this book (1) If any of the products or technical information described in this book is to be exported or provided to non-residents, the laws and regulations of the exporting country, especially, those with regard to security export control, must be observed. (2) The technical information described in this book is intended only to show the main characteristics and application circuit examples of the products. No license is granted in and to any intellectual property right or other right owned by Panasonic Corporation or any other company. Therefore, no responsibility is assumed by our company as to the infringement upon any such right owned by any other company which may arise as a result of the use of technical information described in this book. (3) The products described in this book are intended to be used for standard applications or general electronic equipment (such as office equipment, communications equipment, measuring instruments and household appliances). Consult our sales staff in advance for information on the following applications: - Special applications (such as for airplanes, aerospace, automobiles, traffic control equipment, combustion equipment, life support systems and safety devices) in which exceptional quality and reliability are required, or if the failure or malfunction of the products may directly jeopardize life or harm the human body. - Any applications other than the standard applications intended. (4) The products and product specifications described in this book are subject to change without notice for modification and/or improvement. At the final stage of your design, purchasing, or use of the products, therefore, ask for the most up-to-date Product Standards in advance to make sure that the latest specifications satisfy your requirements. (5) When designing your equipment, comply with the range of absolute maximum rating and the guaranteed operating conditions (operating power supply voltage and operating environment etc.). Especially, please be careful not to exceed the range of absolute maximum rating on the transient state, such as power-on, power-off and mode-switching. Otherwise, we will not be liable for any defect which may arise later in your equipment. Even when the products are used within the guaranteed values, take into the consideration of incidence of break down and failure mode, possible to occur to semiconductor products. Measures on the systems such as redundant design, arresting the spread of fire or preventing glitch are recommended in order to prevent physical injury, fire, social damages, for example, by using the products. (6) Comply with the instructions for use in order to prevent breakdown and characteristics change due to external factors (ESD, EOS, thermal stress and mechanical stress) at the time of handling, mounting or at customer's process. When using products for which damp-proof packing is required, satisfy the conditions, such as shelf life and the elapsed time since first opening the packages. (7) This book may be not reprinted or reproduced whether wholly or partially, without the prior written permission of our company. 20080805 |
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