DATA SHEET Part No. AN44063A Package Code No. SSOP032-P-0300B Publication date: July 2007 SDL00009AEB 1 AN44063A Contents Overview ………….………………………………………………………………………………………………. 3 Features …………………………………...………………………………………………………………………. 3 Applications Package Type ………………………………………………………………………………………………………. 3 …………………………………...………………………………………………………………………. 3 ……….…….………………………………………………………………………………………………… 3 Block Diagram ….………….……...……………………………………………………………………………… 4 Application Circuit Example Pin Descriptions ………..……………………………………………………………………………. 5 …………………..………………………………………………………………………………. 6 Absolute Maximum Ratings ……………………..……………..…………………………......………………… 7 Operating Supply Voltage Range …………………………………………..……………………………………. 7 Electrical Characteristics …………….……………………………………..……………………………………. 8 Technical Data ………………………...……………………………………..……………………………………. 10 SDL00009AEB 2 AN44063A AN44063A Driver IC for Stepping Motor Overview AN44063A 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 y 4-phase input (W 1- and 2-phase excitation enabled; exclusive OR function incorporated for simultaneous-ON prevention) y Built-in CR chopping (with frequency selected) y Built-in thermal protection and low voltage detection circuit y Built-in 5 V power supply Applications y IC for stepping motor drives Package y 32-pin plastic shrink small outline package (SSOP type) Type y Silicon monolithic Bi-CDMOS IC SDL00009AEB 3 AN44063A Block Diagram BC1 18 BC2 17 CHARGE PUMP 16 VPUMP PHB1 26 Gate Circuit IN3 30 3 BOUT2 SQ R IN2 29 5 RCSB 7 BOUT1 VREFB 20 15 VM2 TJMON 32 21 VCC PWMSW 24 PWMSW TSD OSC UVLO BLANK VREFA 19 1 VM1 9 AOUT2 QS R 11 RCSA IN1 28 13 AOUT1 IN0 27 ENABLEA 31 Gate Circuit PHA1 25 S5 VOUT 22 VREF VM 23 GND SDL00009AEB 4 AN44063A Application Circuit Example BC1 18 0.01 μF BC2 17 CHARGE PUMP 16 VPUMP 0.01 μF PHB1 26 Gate Circuit IN3 30 3 BOUT2 SQ R IN2 29 5 RCSB 7 BOUT1 VREFB 20 15 VM2 TJMON 32 21 VCC 0.1 μF PWMSW 24 PWMSW TSD OSC BLANK VREFA 19 UVLO 47 μF 1 VM1 9 AOUT2 QS R 11 RCSA IN1 28 13 AOUT1 IN0 27 ENABLEA 31 Gate Circuit PHA1 25 S5VOUT 22 0.1 μF VREF VM 23 GND SDL00009AEB 5 AN44063A Pin Descriptions Pin No. Pin name Type Description 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 Output Charge Pump circuit output 17 BC2 Output Charge Pump capacitor connection 2 18 BC1 Output Charge Pump capacitor connection 1 19 VREFA Input Phase A torque reference voltage input 20 VREFB Input Phase B torque reference voltage input 21 VCC 22 S5 VOUT Output Internal reference voltage (5-V output) 23 GND Ground Signal ground 24 PWMSW Input PWM frequency selection input 25 PHA1 Input Phase A phase selection input 26 PHB1 Input Phase B phase selection input 27 IN0 Input Phase A output torque control 1 28 IN1 Input Phase A output torque control 2 29 IN2 Input Phase B output torque control 1 30 IN3 Input Phase B output torque control 2 31 ENABLEA Input Phase A/B Enable/Disable CTL 32 TJMON Output ⎯ Input / Output ⎯ Output ⎯ Output ⎯ Input / Output ⎯ Output Power supply Output Motor power supply 1 N.C. Phase B motor drive output 2 N.C. Phase B current detection N.C. Phase B motor drive output 1 N.C. Phase A motor drive output 2 N.C. Phase A current detection N.C. Phase A motor drive output 1 N.C. Motor power supply 2 Signal power supply VBE monitor use SDL00009AEB 6 AN44063A Absolute Maximum Ratings A No. Parameter Symbol Rating Unit Note 1 Supply voltage1 (pin 1, pin 15) VM 37 V *1 2 Supply voltage2 (pin 21) VCC − 0.3 to +6 V *1 3 Power dissipation PD 0.427 W *2 4 Operating ambient temperature Topr −20 to +70 °C *3 5 Storage temperature Tstg −55 to +150 °C *3 6 Output pin voltage (pin 3, pin 7, pin 9, pin 13) VOUT 37 V *1 7 Motor drive current (pin 3, pin 7, pin 9, pin 13) IOUT ±0.8 A *1 8 Flywheel diode current (pin 3, pin 7, pin 9, pin 13) If 0.8 A *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 is the value of a discrete IC package without a heat sink at Ta = 70°C. *3: Except for the power dissipation, operating ambient temperature, and storage temperature, all ratings are at Ta = 25°C. Operating Supply Voltage Range Parameter Symbol Range Unit Note Supply voltage range 1 VM 16.0 to 34.0 V * Supply voltage range 2 VCC 4.5 to 5.5 V * Note) *: The values are under the condition not exceeding the above absolute maximum ratings and the power dissipation. SDL00009AEB 7 AN44063A Electrical Characteristics at VM = 24 V, VCC = 5 V Note) Ta = 25°C±2°C unless otherwise specified. B No. Limits Parameter Symbol Test circuits 1 High-level output saturation voltage VOH 3 I = – 0.5 A 2 Low-level output saturation voltage VOL 3 I = 0.5 A ⎯ 3 Flywheel diode forward voltage VDI 4 I = 0.5 A 4 Output leakage current 1 ILEAK1 1 5 Supply current (with two circuits turned off) IM Unit Note ⎯ V ⎯ 0.47 0.71 V ⎯ 0.5 1.0 1.5 V ⎯ VM = VOUT = 37 V, VRCS = 0 V ⎯ 10 50 μA ⎯ 1 ENABLEA = 5 V ⎯ 4 6 mA ⎯ ICC 1 ENABLEA = 5 V ⎯ 1.4 2.2 mA ⎯ Conditions Min Typ Max Output Drivers VM–0.47 VM–0.31 I/O Block 6 Supply current(with two circuits turned off) 7 High-level IN input voltage VINH 1 ⎯ 2.2 ⎯ VCC V ⎯ 8 Low-level IN input voltage VINL 1 ⎯ 0 ⎯ 0.6 V ⎯ 9 High-level IN input current IINH 1 IN0 = IN1 = IN2 = IN3 = 5 V –10 ⎯ 10 μA ⎯ 10 Low-level IN input current IINL 1 IN0 = IN1 = IN2 = IN3 = 0 V –15 ⎯ 15 μA ⎯ 11 High-level PHA1/PHB1 input voltage VPHAH VPHBH 1 ⎯ 2.2 ⎯ VCC V ⎯ 12 Low-level PHA1/PHB1 input voltage VPHAL VPHBL 1 ⎯ 0 ⎯ 0.6 V ⎯ 13 High-level PHA1/PHB1 input current IPHAH IPHBH 1 PHA1 = PHB1 = 5 V 25 50 100 μA ⎯ 14 Low-level PHA1/PHB1 input current IPHAL IPHBL 1 PHA1 = PHB1 = 0 V –15 ⎯ 15 μA ⎯ 15 High-level ENABLEA input voltage VENABLEAH 1 ⎯ 2.2 ⎯ VCC V ⎯ 16 Low-level ENABLEA input voltage VENABLEAL 1 ⎯ 0 ⎯ 0.6 V ⎯ 17 High-level ENABLEA input current IENABLEAH 1 ENABLEA = 5 V –10 ⎯ 10 μA ⎯ 18 Low-level ENABLEA input current IENABLEAL 1 ENABLEA = 0 V –15 ⎯ 15 μA 19 High-level PWMSW input voltage VPWMSWH 2 ⎯ 2.2 ⎯ VCC V ⎯ 20 Low-level PWMSW input voltage VPWMSWL 2 ⎯ 0 ⎯ 0.6 V ⎯ 21 High-level PWMSW input current IPWMSWH 1 PWMSW = 5 V 25 50 100 μA ⎯ 22 Low-level PWMSW input current IPWMSWL 1 PWMSW = 0 V –15 ⎯ 15 μA ⎯ SDL00009AEB ⎯ 8 AN44063A Electrical Characteristics at VM = 24 V, VCC = 5 V Note) Ta = 25°C±2°C unless otherwise specified. B No. Parameter Symbol Test circuits Conditions Limits Min Typ Max Unit Note Torque Control Block 23 Input bias current IREFA IREFB 1 VREFA = 5 V VREFB = 5 V 70 100 130 μA ⎯ 24 PWM frequency1 fPWM1 2 PWMSW = 0 V 34 52 70 kHz ⎯ 25 PWM frequency2 fPWM2 2 PWMSW = 5 V 17 26 35 kHz ⎯ 26 Pulse blanking time TB 2 VREFA = VREFB = 0 V 0.38 0.75 1.12 μs ⎯ 27 Cmp threshold H (100%) VTH 1 IN0 = IN1 = 0 V IN2 = IN3 = 0 V 475 500 525 mV ⎯ 28 Cmp threshold C (67%) VTC 1 IN0 = 5 V, IN1 = 0 V IN2 = 5 V, IN3 = 0 V 308 333 359 mV ⎯ 29 Cmp threshold L (33%) VTL 1 IN0 = 0 V, IN1 = 5 V IN2 = 0 V, IN3 = 5 V 151 167 184 mV ⎯ Reference Voltage Block 30 Reference voltage VS5 VOUT 1 IS5 VOUT = –2.5 mA 4.5 5.0 5.5 V ⎯ 31 Output impedance ZS5 VOUT 1 IS5 VOUT = –5 mA ⎯ 18 27 Ω ⎯ SDL00009AEB 9 AN44063A Technical Data y Control mode Truth table ENABLEA PHA1/PHB1 AOUT1/BOUT1 AOUT2/BOUT2 "L" "H" "H" "L" "L" "L" "L" "H" "H" ⎯ OFF OFF IN0/IN2 IN1/IN3 Output Current "L" "L" (VREF / 10) × (1 / Rs) = IOUT "H" "L" (VREF / 10) × (1 / Rs) × (2 / 3) = IOUT "L" "H" (VREF / 10) × (1 / Rs) × (1 / 3) = IOUT "H" "H" 0 Note) 1. Rs: current detection region 2. When ENABLEA = "H" or IN0 = IN1 = "H"/IN2 = IN3 = "H", all output transistors switch off at the same time. SDL00009AEB 10 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, and no license is granted under any intellectual property right or other right owned by our company 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. 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