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AN44071A Dataheets PDF



Part Number AN44071A
Manufacturers Panasonic
Logo Panasonic
Description 37V / 1.0A & 1.7A Dual Microstepping Motor Driver
Datasheet AN44071A DatasheetAN44071A Datasheet (PDF)

AN44071A 37V/1.0A&1.7A Dual Microstepping Motor Driver FEATURES ・Built-in thermal protection (TSD) ・2-channel stepping motor driver If chip junction temperature rises and reaches to the A signal driver controls 2 stepping motors ・Built-in decoder for micro steps (2-phase, half step, setup temperature, all motor outputs are turned OFF. ・Built-in abnormal detection output function 1-2 phase, W1-2 phase and 2W1-2 phase excitation) If OCP or TSD operates, an abnormal detection signal Stepp.

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AN44071A 37V/1.0A&1.7A Dual Microstepping Motor Driver FEATURES ・Built-in thermal protection (TSD) ・2-channel stepping motor driver If chip junction temperature rises and reaches to the A signal driver controls 2 stepping motors ・Built-in decoder for micro steps (2-phase, half step, setup temperature, all motor outputs are turned OFF. ・Built-in abnormal detection output function 1-2 phase, W1-2 phase and 2W1-2 phase excitation) If OCP or TSD operates, an abnormal detection signal Stepping motor can be driven by only external clock signal. is output. ・PWM can be driven by built-in CR (3-value can be selected・Built-in standby function during PWM OFF period.) The operation of standby function can lower current The selection of PWM OFF period enables the best PWM consumption of this LSI. drive. ・Built-in Home Position function ・Mix Decay control (4-value can be selected for Fast Decay Home Position function can detect the position of motor. ratio) ・Built-in step detection output function Mix Decay control can improve accuracy of motor current If step detection output function detects clock input waveform. ・Built-in over-current protection (OCP) If the current flows to motor output more than the setup signal, it outputs a signal. ・Built-in 5 V power supply (accuracy : ±5%) ・56 pin Plastic Small Outline Package With Heat Sink value due to ground-fault etc., the OCP operates and all (SOP Type) motor outputs are turned OFF. ・Built-in under voltage lockout (UVLO) If supply voltage falls to less than the operating supply voltage range, the UVLO operates and all motor outputs are turned OFF. APPLICATIONS ・LSI for stepping motor drives DESCRIPTION AN44071A is a quad channel H-bridge driver LSI. Two bipolar stepping motor can be controlled by a single driver LSI. Interface control is 1CLK_type, it can be selected 2-phase excitation, half- step, 1-2 phase excitation, W1-2 phase excitation and 2W1-2 phase excitation. SIMPLIFIED APPLICATION 10 kΩ ENABLEAB 40 DECAY1AB 23 DECAY2AB 34 STPHAB 20 CLKAB 39 DIRAB 38 ST1AB 35 ST2AB 36 ST3AB 37 VREFAB 21 PWMSWAB 22 16 BC1 17 BC2 0.01 μF 18 VPUMP 0.01 μF 29 AOUT2 31 RCSA 33 AOUT1 24 BOUT2 26 RCSB TjmonABCD 10 0.1 μF S5VOUT 13 STBY 44 28 AOUT1 41 VM2 0.1 μF NFAULT 11 10 kΩ TEST 12 + 43 VM1 47 μF PWMSWCD 7 VREFCD 8 56 COUT2 CLKCD 46 DIRCD 47 ST1CD 50 54 RCSC 52 COUT1 ST2CD 49 ST3CD 48 5 DOUT2 STPHCD 9 10 kΩ ENABLECD 45 3 RCSD DECAY1CD 6 1 DOUT1 DECAY2CD 51 14 GND Notes) This application circuit is an example. The operation of mass production set is not guaranteed. You should perform enough evaluation and verification on the design of mass production set. You are fully responsible for the incorporation of the above application circuit and information in the design of your equipment. Mix Decay effect for Motor current 【Fig1:Slow Decay】 +OUT -OUT 2ms/div distortion 【Fig2:Mix Decay(25%)】 Motor Current +OUT -OUT Motor Current 2ms/div distortionless Condition: excitation mode :2W1-2 phase drive fig1 DECAY1=L DECAY2=L fig2 DECAY1=L DECAY2=H Publication date: November 2012 1 Ver. BEB AN44071A ABSOLUTE MAXIMUM RATINGS Parameter Symbol Rating Unit Note Supply voltage (Pin 41, 43) VM Power dissipation PD Operating ambient temperature Topr Operating junction temperature Tj Storage temperature Tstg Output pin voltage (Pin 1, 5, 24, 28, 29, 33, 52, 56) VOUT Motor drive current 1 (Pin 24, 28, 29, 33) IOUT1 Motor drive current 2 (Pin 1, 5, 52, 56) IOUT2 Flywheel diode current 1(Pin 24, 28, 29, 33) If1 Flywheel diode current 2 (Pin 1, 5, 52, 56) If2 VRCSA,VRCSB,VRCSC,VRCSD; VDECAY2CD,VDECAY2AB VDECAY1CD,VDECAY1AB VPWMSWAB,VPWMSWCD VVREFAB,VVREFCD VSTPHAB,VSTPHCD VNFAULT VTEST Input Voltage Range VBC2 VVPUMP VST1AB,VST2AB,VST3AB VST1CD,VST2CD,VST3CD VDIRAB,VDIRCD VCLKAB,VCLKCD VENABLEAB,VENABLECD VSTBY ISTPHAB,ISTPHCD INFAULT IS5VOUT ESD HBM (Human Body Model) CDM (Charge Device Model) 37 448 –20 to +85 –20 to + 150 –55 to +150 37 ±1.0 ±1.7 ±1.0 ±1.7 2.5 -0.3 to 6 -0.3 to 6 -0.3 to 6 -0.3 to 6 -0.3 to 6 -0.3 to 6 (VM-1) to 43 (VM-2) to 43 -0.3 to 6 -0.3 to 6 -0.3 to 6 -0.3 to 6 -0.3 to 6 2 2 -7 to 0 ±2 ±1 V mW °C °C °C V A A A A V V V V V V V V V V V V V V mA mA mA kV kV *1 *2 *3 *3 *3 *4 *5 *5 *5 *5 — — — — *6 *6 — *7 *7 — — — — — *6 *6 — — — Notes). This product may sustain permanent damage if subjected to conditions higher than the above stated absolute maximum rating. This rating is the maximum rating and device operating at this range is not guaranteeable as it is higher than our stated recommended operating range. When subjected under the absolute maximum rating for a long time, the reliability of the product may be affected. *1 : The values under the condition not exceeding the above absolute maximum ratings and the power dissipation. *2 : The power dissipation shown is the value at Ta = 85°C for the independent (unmounted) LSI package without a heat sink. When using this LSI, re.


AN44071A-VF AN44071A MT516


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