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STK672-440B-E Dataheets PDF



Part Number STK672-440B-E
Manufacturers ON Semiconductor
Logo ON Semiconductor
Description 2-phase Stepper Motor Driver
Datasheet STK672-440B-E DatasheetSTK672-440B-E Datasheet (PDF)

Ordering number : ENA1734A STK672-440B-E Thick-Film Hybrid IC 2-phase Stepping Motor Driver http://onsemi.com Overview The STK672-440B-E is a hybrid IC for use as a unipolar, 2-phase stepping motor driver with PWM current control. Applications • Office photocopiers, printers, etc. Features • Built-in motor terminal open detection function (output current OFF). • Built-in overcurrent detection function (output current OFF). • Built-in overheat detection function (output current OFF). • FAULT1 .

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Ordering number : ENA1734A STK672-440B-E Thick-Film Hybrid IC 2-phase Stepping Motor Driver http://onsemi.com Overview The STK672-440B-E is a hybrid IC for use as a unipolar, 2-phase stepping motor driver with PWM current control. Applications • Office photocopiers, printers, etc. Features • Built-in motor terminal open detection function (output current OFF). • Built-in overcurrent detection function (output current OFF). • Built-in overheat detection function (output current OFF). • FAULT1 signal (active low) is output when any of motor terminal open, overcurrent, or overheat is detected. The FAULT2 signal is used to output the result of activation of protection circuit detection at 3 levels. • Built-in power on reset function. • A micro-step sine wave-driven driver can be activated merely by inputting an external clock. • External pins can be used to select 2, 1-2 (including pseudo-micro), W1-2, 2 W1-2, or 4W1-2 excitation. • The switch timing of the 4-phase distributor can be switched by setting an external pin (MODE3) to detect either the rise and fall, or rise only, of CLOCK input. • Phase is maintained even when the excitation mode is switched. Rotational direction switching function. • Supports schmitt input for 2.5V high level input. • Incorporating a current detection resistor (0.122Ω: resistor tolerance ±2%), motor current can be set using two external resistors. • The ENABLE pin can be used to cut output current while maintaining the excitation mode. • With a wide current setting range, power consumption can be reduced during standby. • No motor sound is generated during hold mode due to external excitation current control. Semiconductor Components Industries, LLC, 2013 June, 2013 71311HKPC 018-11-0005/61610HKPC No.A1734-1/26 STK672-440B-E Specifications Absolute Maximum Ratings at Tc = 25°C Parameter Maximum supply voltage 1 Maximum supply voltage 2 Input voltage Output current 1 Output current 2 Allowable power dissipation 1 Allowable power dissipation 2 Operating substrate temperature Junction temperature Storage temperature Symbol VCC max VDD max VIN max IOP max IOH max PdMF max PdPK max Tc max Tj max Tstg Conditions No signal No signal Logic input pins 10μs, 1 pulse (resistance load) VDD=5V, CLOCK≥200Hz With an arbitrarily large heat sink. Per MOSFET No heat sink Metal surface temperature of the package Ratings 50 -0.3 to +6.0 -0.3 to +6.0 20 3.5 8.3 3.1 -20 to +105 150 -40 to +125 unit V V V A A W W °C °C °C Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability. Allowable Operating Ranges at Ta=25°C Parameter Symbol Conditions Operating supply voltage 1 VCC With signals applied Operating supply voltage 2 VDD With signals applied Input high voltage VIH Pins 10, 11, 12, 13, 14, 15, 17, VDD=5±5% Input low voltage VIL Pins 10, 11, 12, 13, 14, 15, 17, VDD=5±5% Output current IOH Tc=105°C, CLOCK≥200Hz CLOCK frequency fCL Minimum pulse width: at least 10μs Recommended Vref range Vref Tc=105°C Electrical Characteristics at Tc=25°C, VCC=24V, VDD=5.0V *1 Ratings 0 to 46 5±5% 2.5 to VDD 0 to 0.8 3.0 0 to 50 0.2 to 1.8 unit V V V V A kHz V Parameter Symbol Conditions min typ max unit VDD supply current Output average current *2 ICCO Ioave VDD=5.0V, ENABLE=Low R/L=1Ω/0.62mH in each phase 0.27 5.7 0.32 7.0 0.37 mA A FET diode forward voltage Output saturation voltage Control input pin Input voltage 5V level input current GND level input current Vref input bias current FAULT1 pin Output low voltage 5V level leakage current Vdf Vsat VIH VIL IILH IILL IIB VOLF IILF If=1A (RL=23Ω) RL=23Ω Pins 10, 11, 12, 13, 14, 15, 17 Pins 10, 11, 12, 13, 14, 15, 17 Pins 10, 11, 12, 13, 14, 15, 17=5V Pins 10, 11, 12, 13, 14, 15, 17=GND Pin 19 =1.0V Pin 16 (IO=5mA) Pin 16 =5V 1 1.6 V 0.25 0.38 V 2.5 VDD V -0.3 0.8 V 50 75 μA 0.25 10 μA 1 μA 0.5 V 10 μA FAULT2 pin Motor terminal open detection output voltage Overcurrent detection output voltage VOF1 VOF2 Pin 8 (when all protection functions have been activated) 0.0 0.01 0.2 2.4 2.5 2.6 V Overheat detection output voltage VOF3 3.1 3.3 3.5 Overheat detection temperature TSD Design guarantee 144 °C PWM frequency fc 41 48 55 kHz Drain-source cut-off current Notes IDSS VDS=100V, Pins 2, 6, 9, 18=GND 1 μA *1: A fixed-voltage power supply must be used. *2: The value for Ioave assumes that the lead frame of the product is soldered to the mounting circuit board. Continued on next page. No.A1734-2/26 STK672-440B-E Continued from preceding page. Parameter Symbol Conditions 4W1-2 2W1-2 W1-2 1-2 θ=15/16, 16/16 4W1-2 2W1-2 θ=14/16 4W1-2 θ=13/16 4W1-2 2W1-2 W1-2 θ=12/16 4W1-2 θ=11/16 A•B Chopper Current Ratio 4W1-2 2W1-2 θ=10/16 4W1-2 θ=9/16 4W1-2 4W1-2 .


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