an44066a Panasonic Corporation of North America, an44066a Datasheet
an44066a
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an44066a Summary of contents
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... DATA SHEET Part No. Package Code No. Publication date: July 2009 AN44066A SSOP032-P-0300B SDL00014AEB 1 ...
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... AN44066A Overview ……………………………………………………………………………………………………………. 3 Features … ...
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... AN44066A AN44066A Driver IC for Stepping Motor Overview AN44066A is a two channels H-bridge driver IC. Bipolar stepping motor can be controlled by this single driver IC. 2-phase, half-step, 1-2 phase, W1-2 phase can be selected. Features 2-phase input control by rationalization of interface (2-phase excitation, half-step, and 1-2 phase excitation enabled) 4-phase input control (W1-2 phase excitation enabled) ...
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... AN44066A Application Circuit Example BC1 18 CHARGE 0.01 μF BC2 17 PUMP PHB1 26 IN0 IN3 30 IN2 29 VREFB 20 TJMON 32 24 PWMSW PWMSW VREFA 19 IN1 28 27 IN0 ENABLEA 31 PHA1 25 STBY 22 S5VOUT 21 0.1 μF Note) This application circuit is shown as an example but does not guarantee the design for mass production set. ...
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... AN44066A Pin Descriptions Pin No. Pin name 1 VM1 Power supply 2 N.C. 3 BOUT2 4 N.C. 5 RCSB 6 N.C. 7 BOUT1 8 N.C. 9 AOUT2 10 N.C. 11 RCSA 12 N.C. 13 AOUT1 14 N.C. 15 VM2 Power supply 16 VPUMP 17 BC2 18 BC1 19 VREFA 20 VREFB 21 S5VOUT 22 STBY 23 GND 24 PWMSW 25 PHA1 26 PHB1 27 IN0 28 IN1 29 IN2 30 IN3 31 ENABLEA ...
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... AN44066A Absolute Maximum Ratings Note) Absolute maximum ratings are limit values which are not destructed, and are not the values to which operation is guaranteed. A No. Parameter 1 Supply voltage (Pin 1, 15) 2 Power dissipation 3 Operating ambient temperature 4 Storage temperature 5 Output pin voltage (Pin 13) ...
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... AN44066A Allowed Voltage and Current Ranges Notes) Rating Voltage is voltage of pin on GND Do not apply current or voltage from outside to any pin not listed above. For the circuit currents, "+" denotes current flowing into the IC, and "−" denotes current flowing out of the IC. ...
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... AN44066A Electrical Characteristics at V Note 25°C±2°C unless otherwise specified Parameter No. Power Block 1 High-level output saturation voltage 2 Low-level output saturation voltage 3 Flywheel diode forward voltage 4 Output leakage current Supply current (at when only control 5 system and charge Pump circuit are ...
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... AN44066A Electrical Characteristics (continued Note 25°C±2°C unless otherwise specified Parameter No. Torque Control Block 27 Input bias current 28 PWM frequency1 29 PWM frequency2 30 Pulse blanking time 31 Comp threshold H (100%) 32 Comp threshold C (67%) 33 Comp threshold L (33%) Reference Voltage Block 34 Reference voltage ...
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... AN44066A Electrical Characteristics (Reference values for design Notes 25°C±2°C unless otherwise specified. a The characteristics listed below are reference values derived from the design of the IC and are not guaranteed by inspection problem does occur related to these characteristics, we will respond in good faith to user concerns. ...
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... AN44066A Technical Data Circuit diagrams of the input/output part and pin function descriptions Note) The characteristics listed below are reference values based on the IC design and are not guaranteed. Pin Waveform No. and voltage ― ― 17 BC2 17 Internal circuit Pin3 BOUT2 ...
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... AN44066A Technical Data (continued) Circuit diagrams of the input/output part and pin function descriptions (continued) Note) The characteristics listed below are reference values based on the IC design and are not guaranteed. Pin Waveform No. and voltage 18 ― 19 ― 20 Internal circuit 150 BC1 18 200 Pin19 VREFA ...
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... AN44066A Technical Data (continued) Circuit diagrams of the input/output part and pin function descriptions (continued) Note) The characteristics listed below are reference values based on the IC design and are not guaranteed. Pin Waveform No. and voltage 21 ― 22 ― Internal circuit Pin21 S5VOUT 21 2k 102k ...
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... AN44066A Technical Data (continued) Circuit diagrams of the input/output part and pin function descriptions (continued) Note) The characteristics listed below are reference values based on the IC design and are not guaranteed. Pin Waveform No. and voltage Pin24 PWMSW 24 ― Pin 25 PHA1 26 PHB1 25 ― 26 Internal circuit ...
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... AN44066A Technical Data (continued) Circuit diagrams of the input/output part and pin function descriptions (continued) Note) The characteristics listed below are reference values based on the IC design and are not guaranteed. Pin Waveform No. and voltage Pin27 IN0 ― ― Sym ― ...
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... AN44066A Technical Data Control mode 1. Truth table 1) Control/Charge pump circuit STBY ENABLE High — Low High Low Low 2) Output polarity ENABLEA PHA1/PHB1 Low High Low Low High — 3) Output current of 2-phase excitation / half step / 1-2 phase excitation IN0 IN2 Low Low High ...
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... AN44066A Technical Data (continued) Control mode (continued) 2. Output wave 1) Drive of 2-phase excitation (4steps sequence) (IN0 to IN3 = Low PHA1 V PHB1 A-ch. Motor current B-ch. Motor current A-ch. Motor current B-ch. Motor current FWD SDL00014AEB PHA1 V PHB1 REV 17 ...
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... AN44066A Technical Data (continued) Control mode (continued) 2. Output wave (continued) 2) Drive of half step (8-steps sequence) (IN1 = IN3 = Low) (Ex PHA1 V PHB1 V IN0 V IN2 A-ch. Motor current B-ch. Motor current A-ch. Motor current B-ch. Motor current FWD REV SDL00014AEB ...
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... AN44066A Technical Data (continued) Control mode (continued) 2. Output wave (continued) 3) Drive of 1-2 phase excitation (8-steps sequence) (IN1 = IN3 = Low) (Ex PHA1 V PHB1 V IN0 V IN2 A-ch. Motor current B-ch. Motor current A-ch. Motor current B-ch. Motor current FWD REV SDL00014AEB ...
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... AN44066A Technical Data (continued) Control mode (continued) 2. Output wave (continued) 4) Drive of W1-2 phase excitation (16-steps sequence 101112 13 1415 16 V PHA1 V PHB1 V IN0 V IN1 V IN2 V IN3 A-ch. Motor current B-ch. Motor current A-ch. Motor current B-ch. Motor current FWD REV SDL00014AEB 1011 12 131415 16 ...
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... AN44066A Technical Data (continued) ⎯ diagram D a SDL00014AEB 21 ...
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... AN44066A Usage Notes Special attention and precaution in using 1. This IC is intended to be used for general electronic equipment and driving stepping motor. Consult our sales staff in advance for information on the following applications: Special applications in which exceptional quality and reliability are required the failure or malfunction of this IC may directly jeopardize life or harm the human body ...
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... AN44066A Usage Notes (continued) Notes of Power LSI 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 ...
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... AN44066A Usage Notes (continued) 8. Pulse blanking time In order to prevent mistakes in current detection resulting noise, this IC is provided with a pulse blanking time of 0.75 μs (typ.). The motor current will not be less than the current determined by the pulse blanking time. Pay utmost attention at the time of minute current control ...
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... AN44066A Usage Notes (continued) 11. Notes at the clear of standby mode / the rise of VM supply In this LSI, all phases are forced OFF for about 300 μs (typ.) after the clear of standby mode or the rise of VM supply. (See the following figure.) This is why the operation mode can be started after the charge pump circuit voltage boosts efficiently at shift to operation mode from standby mode / VM supply = OFF, when the charge pump operation stops ...
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... AN44066A Usage Notes (continued) 12. PWMSW, PHA1, PHB1 pins Under conditions where VM power supply is shutdown in standby mode (STBY pin = High level), when applying approx. 0.7 V (TYP) or more to PWMSW (Pin 24), PHA1 (Pin 25), PHB1 (Pin 26), the current flows into above-mentioned pins owing to parasitic elements in the LSI and the current flowing into the above-mentioned pins varies from the current determined by pull down resistance. In addition, the current flowing into PHA1/PHA2 is 341.4 μ ...
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... AN44066A Usage Notes (continued) 13. In the case of measuring the chip temperature of the IC, measure the voltage of TJMON (Pin 32) and presume chip temperature from following data. Use the following data as reference data. Before applying the product, conduct a sufficient reliability test of the IC along with the evaluation of the product with the IC incorporated. ...
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... AN44066A Usage Notes (continued) 15. RCS line Take consideration in the following figure and the points and design PCB pattern. (1) Point 1 Design so that the wiring to the current detection pins of this IC (RCSA, RCSB) should be thick and short in order to lower the impedance. This is why the current cannot be detected correctly owing to the wiring impedance, and the current might not be supplied to a motor sufficiently ...
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Request for your special attention and precautions in using the technical information and (1) If any of the products or technical information described in this book exported or provided to non-residents, the laws and regulations of the ...