Ordering number : ENA2297 STK672-632AN-E Thick-Film Hybrid IC 2-phase Stepper Motor Driver STK672-632AN-E Allowable Operating Ranges at Tc=25C Parameter Symbol Conditions Ratings unit Operating supply voltage 1 V With signals applied 0 to 42 V CC Operating supply voltage 2 V With signals applied 55% V DD Input high voltage V Pins 10, 12, 13, 14, 15, 17, V =55% 2.5 to V V IH DD DD Input low voltage V Pins 10, 12, 13, 14, 15, 17, V =55% 0 to 0.8 V IL DD Tc=105C, CLOCK200Hz, Output current 1 I 1 2.0 A OH Continuous operation, duty=100% Tc=80 C, CLOCK200Hz, Output current 2 I 2 Continuous operation, duty=100%, 2.2 A OH See the motor current (I ) derating curve OH CLOCK frequency f Minimum pulse width: at least 10s 0 to 50 kHz CL Recommended operating Tc No condensation 0 to 105 C substrate temperature Recommended Vref range Vref Tc=105C 0.14 to 1.38 V Functional operation above the stresses listed in the Recommended Operating Ranges is not implied. Extended exposure to stresses beyond the Recommended Operating Ranges limits may affect device reliability. Electrical Characteristics at Tc=25C, V =24V, V =5.0V *1 CC DD Parameter Symbol Conditions min typ max unit V supply current I V =5.0V, ENABLE=Low 4.4 8.0 mA DD CCO DD Output average current *2 Ioave R/L=1/0.62mH in each phase 0.273 0.329 0.385A FET diode forward voltage Vdf If=1A (R =23) 0.92 1.6V L Output saturation voltage Vsat R =23 0.33 0.48V L Input high voltage V Pins 10, 12, 13, 14, 15, 17 2.5 V V IH DD Input low voltage V Pins 10, 12, 13, 14, 15, 17 0.3 0.8 V Control IL Input pin 5V level input current Pins 10, 12, 13, 14, 15, 17=5V I 50 75 A ILH GND level input current Pins 10, 12, 13, 14, 15, 17=GND I 10 A ILL Output low voltage V Pin 16 (I=5mA) 0.25 0.5V FAULT OLF O pin 5V level leakage current Pin 16 =5V I 10 A ILF Vref input bias current I Pin 19 =1.0V 10 15 A IB PWM frequency fc 29 45 61 kHz Overheat detection temperature TSD Design guarantee 144 C Drain-source cut-off current I V =100V, Pins 2, 6, 9, 18=GND 1 A DSS DS Notes *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. Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product performance may not be indicated by the Electrical Characteristics if operated under different conditions. No.A2297-2/28