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DATA SHEET
Part No. Package Code No.
AN44063A
SSOP032-P-0300B
Publication date: July 2007
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AN44063A Contents
Overview Features Package Type Applications .......................................................................................................................... 3 ............................................................................................................................ 3 ...................................................................................................................... 3 ............................................................................................................................ 3 .................................................................................................................... 4 ................................................................................................... 5 .................................................................................................... 7 .................................................................................................................. 6
................................................................................................................................ 3
Block Diagram Pin Descriptions
Application Circuit Example Absolute Maximum Ratings Electrical Characteristics
Operating Supply Voltage Range ............................................................................................. 7 ....................................................................................................... 8 Technical Data ..................................................................................................................... 10
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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
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
32-pin plastic shrink small outline package (SSOP type)
Type
Silicon monolithic Bi-CDMOS IC
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AN44063A
Block Diagram
BC1 18 BC2 17 PHB1 26
CHARGE PUMP
16 VPUMP
Gate Circuit IN3 30 IN2 29 SQ 3 BOUT2
R
5 RCSB
7 BOUT1 VREFB 20 TJMON 32 PWMSW 24 PWMSW
BLANK
15 VM2 21 VCC OSC TSD UVLO 1 VM1 9 AOUT2
VREFA 19
11 RCSA R IN1 28 IN0 27 ENABLEA 31 PHA1 25 S5 VOUT 22 VREF VM 23 GND Gate Circuit QS
13 AOUT1
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AN44063A
Application Circuit Example
BC1 18 0.01 F BC2 17 PHB1 26
CHARGE PUMP
16 VPUMP 0.01 F Gate Circuit
IN3 30 IN2 29 SQ
3 BOUT2
R
5 RCSB
7 BOUT1 VREFB 20 TJMON 32 PWMSW 24 PWMSW
BLANK
15 VM2 21 VCC 0.1 F OSC TSD UVLO 47 F 1 VM1 9 AOUT2
VREFA 19
11 RCSA R IN1 28 IN0 27 ENABLEA 31 PHA1 25 S5VOUT 22 0.1 F VREF VM 23 GND Gate Circuit QS
13 AOUT1
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AN44063A
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 29 30 31 32 Pin name VM1 N.C. BOUT2 N.C. RCSB N.C. BOUT1 N.C. AOUT2 N.C. RCSA N.C. AOUT1 N.C. VM2 VPUMP BC2 BC1 VREFA VREFB VCC S5 VOUT GND PWMSW PHA1 PHB1 IN0 IN1 IN2 IN3 ENABLEA TJMON Type Power supply Output Input / Output Output Output Input / Output Output Power supply Output Output Output Input Input Power supply Output Ground Input Input Input Input Input Input Input Input 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 Charge Pump circuit output Charge Pump capacitor connection 2 Charge Pump capacitor connection 1 Phase A torque reference voltage input Phase B torque reference voltage input Signal power supply Internal reference voltage (5-V output) Signal ground PWM frequency selection input 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/B Enable/Disable CTL VBE monitor use Description
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AN44063A
Absolute Maximum Ratings
A No. 1 2 3 4 5 6 7 8 Parameter Supply voltage1 (pin 1, pin 15) Supply voltage2 (pin 21) Power dissipation Operating ambient temperature Storage temperature Output pin voltage (pin 3, pin 7, pin 9, pin 13) Motor drive current (pin 3, pin 7, pin 9, pin 13) Flywheel diode current (pin 3, pin 7, pin 9, pin 13) Symbol VM VCC PD Topr Tstg VOUT IOUT If Rating 37 - 0.3 to +6 0.427 -20 to +70 -55 to +150 37 0.8 0.8 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 is the value of a discrete IC package without a heat sink at Ta = 70C. *3: Except for the power dissipation, operating ambient temperature, and storage temperature, all ratings are at Ta = 25C.
Operating Supply Voltage Range
Parameter Supply voltage range 1 Supply voltage range 2 Symbol VM VCC Range 16.0 to 34.0 4.5 to 5.5 Unit V V Note * *
Note) *: The values are under the condition not exceeding the above absolute maximum ratings and the power dissipation.
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AN44063A
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
Test circuits
Conditions
Limits Min Typ Max
Unit
Note
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
3 3 4 1 1
I = - 0.5 A I = 0.5 A I = 0.5 A VM = VOUT = 37 V, VRCS = 0 V ENABLEA = 5 V
VM-0.47 VM-0.31
0.71 1.5 50 6
V V V A mA

0.5
0.47 1.0 10 4
I/O Block 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 Supply current(with two circuits turned off) 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 ICC VINH VINL IINH IINL VPHAH VPHBH VPHAL VPHBL IPHAH IPHBH IPHAL IPHBL 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 1 1 ENABLEA = 5 V
IN0 = IN1 = IN2 = IN3 = 5 V IN0 = IN1 = IN2 = IN3 = 0 V
2.2 0 -10 -15 2.2 0 25 -15 2.2 0 -10 -15 2.2 0 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

PHA1 = PHB1 = 5 V PHA1 = PHB1 = 0 V ENABLEA = 5 V ENABLEA = 0 V PWMSW = 5 V PWMSW = 0 V
High-level ENABLEA input voltage VENABLEAH Low-level ENABLEA input voltage VENABLEAL High-level ENABLEA input current Low-level ENABLEA input current High-level PWMSW input voltage Low-level PWMSW input voltage High-level PWMSW input current Low-level PWMSW input current IENABLEAH IENABLEAL VPWMSWH VPWMSWL IPWMSWH IPWMSWL
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AN44063A
Electrical Characteristics at VM = 24 V, VCC = 5 V
Note) Ta = 25C2C unless otherwise specified.
B No.
Parameter
Symbol
Test circuits
Conditions
Limits Min Typ Max
Unit
Note
Torque Control Block 23 24 25 26 27 28 29 Input bias current PWM frequency1 PWM frequency2 Pulse blanking time Cmp threshold H (100%) Cmp threshold C (67%) Cmp threshold L (33%) IREFA IREFB fPWM1 fPWM2 TB VTH VTC VTL 1 2 2 2 1 1 1 VREFA = 5 V 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 34 17 0.38 475 308 151 100 52 26 0.75 500 333 167 130 70 35 1.12 525 359 184 A kHz kHz s mV mV mV
Reference Voltage Block 30 31 Reference voltage Output impedance VS5 VOUT ZS5 VOUT 1 1 IS5 VOUT = -2.5 mA IS5 VOUT = -5 mA 4.5 5.0 18 5.5 27 V
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AN44063A
Technical Data
Control mode Truth table ENABLEA "L" "L" "H" IN0/IN2 "L" "H" "L" "H" PHA1/PHB1 "H" "L" IN1/IN3 "L" "L" "H" "H" 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. Rs: current detection region 2. When ENABLEA = "H" or IN0 = IN1 = "H"/IN2 = IN3 = "H", all output transistors switch off at the same time.
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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. (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 Matsushita Electric Industrial Co., Ltd.

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