Ordering number : ENA2307 STK672-432BN-E Thick-Film Hybrid IC 2-phase Stepper Motor Driver STK672-432BN-E Allowable Operating Ranges at Tc=25C Parameter Symbol Conditions Ratings unit Operating supply voltage 1 V With signals applied 0 to 46 V CC Operating supply voltage 2 V With signals applied 55% V DD Input high voltage V Pins 10, 11, 12, 13, 14, 15, 17, V =55% 2.5 to V V IH DD DD Input low voltage V Pins 10, 11, 12, 13, 14, 15, 17, V =55% 0 to 0.8 V IL DD CLOCK frequency f Minimum pulse width: at least 10s 0 to 50 kHz CL Output current I Tc=105C, CLOCK200Hz 2.0A OH Recommended operating Tc No condensation 0 to 105 C substrate temperature Recommended Vref range Vref Tc=105C 0.14 to 1.48 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 7.2 8.5 mA DD CCO DD Output average current *2 Ioave R/L=1/0.62mH in each phase 0.19 0.23 0.27A FET diode forward voltage Vdf If=1A (R =23) 1 1.6V L Output saturation voltage Vsat R =23 0.35 0.50V L Input voltage V Pins 10, 11, 12, 13, 14, 15, 17 2.5 V V IH DD V Pins 10, 11, 12, 13, 14, 15, 17 0.3 0.8 V Control IL input pin 5V level input current I Pins 10, 11, 12, 13, 14, 15, 17=5V 50 75 A ILH GND level input current I Pins 10, 11, 12, 13, 14, 15, 17=GND 10 A ILL Vref input bias current I Pin 19 =1.0V 1 A IB FAULT1 Output low voltage V Pin 16 (I=5mA) 0.25 0.5V OLF O pin 5V level leakage current I Pin 16 =5V 10 A ILF Motor terminal open detection V 1 0.0 0.01 0.2 OF output voltage FAULT2 Overcurrent detection output Pin 8 (when all protection functions have V2 2.4 2.5 2.6 V OF pin voltage been activated) Overheat detection output V3 3.1 3.3 3.5 OF voltage Overheat detection temperature TSD Design guarantee 144 C PWM frequency fc 41 48 55 kHz Drain-source cut-off current I V =100V, Pins 2, 6, 9, 18=GND 1 A DSS DS 4W1-2 2W1-2 W1-2 1-2 =15/16, 16/16 100 4W1-2 2W1-2 =14/16 97 4W1-2 =13/16 95 4W1-2 2W1-2 W1-2 =12/16 93 4W1-2 =11/16 87 4W1-2 2W1-2 =10/16 83 4W1-2 =9/16 77 4W1-2 2W1-2 W1-2 1-2 Vref =8/16 71 % 4W1-2 *3 =7/16 64 4W1-2 2W1-2 =6/16 55 4W1-2 =5/16 47 4W1-2 2W1-2 W1-2 =4/16 40 4W1-2 =3/16 30 4W1-2 2W1-2 =2/16 20 4W1-2 =1/16 11 2 100 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. *3: The values given for Vref are design targets, no measurement is performed. 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.A2307-2/28 AB Chopper Current Ratio