Ordering number : EN7115 LB1946 Monolithic Digital IC PWM Current Control Stepping Motor Driver LB1946 Allowable Operating Ranges at Ta = 25C Parameter Symbol Conditions Ratings Unit Motor supply voltage VBB 10 to 45 V Logic supply voltage V 4.5 to 5.5 V CC Reference voltage VREF 0.0 to 3.0 V Electrical Characteristics at Ta = 25C, V = 5V, VBB = 45V, VRES = 1.52V CC Ratings Parameter Symbol Conditions unit min typ max Output Block Output stage supply current IBB ON 1.6 2.4 3.5mA IBB OFF 1.3 1.9 2.5mA Output saturation voltage 1 Vsat1 I =+1.0A (sink) 1.2 1.6 V O O Output saturation voltage 2 Vsat2 I =+1.5 A (sink) 1.5 1.9 V O O Output saturation voltage 3 Vsat3 I =-1.0 A (source) 1.9 2.2 V O O Output saturation voltage 4 Vsat4 I =-1.5 A (source) 2.2 2.4 V O O Output leakage current I 1 (leak) V =VBB (sink) 50 A O O I 2 (leak) V =0V (source) -50 A O O Output sustain voltage V sus L=15mH I =1.5A * 45 V O O Logic Block Logic system supply current I ON D0=1,D1=1,D2=1,D3=1 CC 25.5 37 48.5 mA When these data values are set I OFF1 D0=0,D1=0,D2=0,D3=0 18 26 34mA CC I OFF2 ST=LOW 0.01 0.05 0.1mA CC Input voltage V 2 V IH V 0.8V IL Input current I V=2V 35 A IH IH I V=0.8V 6 A IL IL Sense voltages VE D0=1,D1=1,D2=1,D3=1 0.470 0.50 0.525 V When these data values are set D0=1,D1=1,D2=1,D3=0 0.445 0.48 0.505V D0=1,D1=1,D2=0,D3=1 0.425 0.46 0.485V D0=1,D1=1,D2=0,D3=0 0.410 0.43 0.465V D0=1,D1=0,D2=1,D3=1 0.385 0.41 0.435V D0=1,D1=0,D2=1,D3=0 0.365 0.39 0.415V D0=1,D1=0,D2=0,D3=1 0.345 0.37 0.385V D0=1,D1=0,D2=0,D3=0 0.325 0.35 0.365V D0=0,D1=1,D2=1,D3=1 0.280 0.30 0.325V D0=0,D1=1,D2=1,D3=0 0.240 0.26 0.285 V D0=0,D1=1,D2=0,D3=1 0.195 0.22 0.235V D0=0,D1=1,D2=0,D3=0 0.155 0.17 0.190V D0=0,D1=0,D2=1,D3=1 0.115 0.13 0.145V D0=0,D1=0,D2=1,D3=0 0.075 0.09 0.100V Reference current IREF VREF=1.5V -0.5 A CR pin current ICR CR=1.0V -1.7 -1.25 -0.9mA MD pin current IMD MD=1.0V, CR=4.0V -5.0 A Logic system on voltage VLSDON 2.6 2.8 3.0V Logic system off voltage VLSDOFF 2.45 2.65 2.85V LVSD hysteresis VLHIS 0.03 0.15 0.35V Thermal shutdown temperature Ts 170 C *Design guaranteed value No.7115-2/16