Ordering number : EN5982A LB1847 Monolithic Digital IC PWM Current Control Type LB1847 Allowable Operating Ranges at Ta = 25C Parameter Symbol Conditions Ratings Unit Motor supply voltage range V 10 to 45 V BB Logic supply voltage V 4.75 to 5.25 V CC Reference voltage range V 0.0 to 3.0 V REF Electrical Characteristics at Ta = 25C, V = 45V, V = 5V, V = 1.52V BB CC REF Ratings Parameter Symbol Conditions Unit min typ max Output Block Output stage supply voltage I ON 2.3 3.5 5.0 mA BB I OFF 0.5 0.8 1.1 mA BB Output saturation voltage V(sat)1 I = +1.0A, sink 1.2 1.6 V O O V(sat)2 I = +1.5A, sink 1.5 1.9 V O O V(sat)3 I = -1.0A, source 1.9 2.2 V O O V(sat)4 I = -1.5A, source 2.2 2.4 V O O Output leak current I(leak)1 V = V , sink 50 A O O BB I(leak)2 V = 0V, source -50 A O O Output sustain voltage V L = 15mH, I = 1.5A, Guaranteed design value * 45 V SUS O Logic Block Logic supply voltage I ON I = 3.2V, I = 3.2V, I = 3.2V, I = 3.2V 19.5 26 36.5 mA CC 4 3 2 1 I OFF ENABLE = 3.2V 10.5 15 19.5 mA CC Input voltage V 3.2 V IH V 0.8 V IL Input current I V = 3.2V 100 A IH IH I V = 0.8V -10 A IL IL Sensing voltage V I = 3.2V, I = 3.2V, I = 3.2V, I = 3.2V 0.470 0.50 0.525 V E 4 3 2 1 I = 3.2V, I = 3.2V, I = 3.2V, I = 0.8V 0.445 0.48 0.505 V 4 3 2 1 I = 3.2V, I = 3.2V, I = 0.8V, I = 3.2V 0.425 0.46 0.485 V 4 3 2 1 I = 3.2V, I = 3.2V, I = 0.8V, I = 0.8V 0.410 0.43 0.465 V 4 3 2 1 I = 3.2V, I = 0.8V, I = 3.2V, I = 3.2V 0.385 0.41 0.435 V 4 3 2 1 I = 3.2V, I = 0.8V, I = 3.2V, I = 0.8V 0.365 0.39 0.415 V 4 3 2 1 I = 3.2V, I = 0.8V, I = 0.8V, I = 3.2V 0.345 0.37 0.385 V 4 3 2 1 I = 3.2V, I = 0.8V, I = 0.8V, I = 0.8V 0.325 0.35 0.365 V 4 3 2 1 I = 0.8V, I = 3.2V, I = 3.2V, I = 3.2V 0.280 0.30 0.325 V 4 3 2 1 I = 0.8V, I = 3.2V, I = 3.2V, I = 0.8V 0.240 0.26 0.285 V 4 3 2 1 I = 0.8V, I = 3.2V, I = 0.8V, I = 3.2V 0.195 0.22 0.235 V 4 3 2 1 I = 0.8V, I = 3.2V, I = 0.8V, I = 0.8V 0.155 0.17 0.190 V 4 3 2 1 I = 0.8V, I = 0.8V, I = 3.2V, I = 3.2V 0.115 0.13 0.145 V 4 3 2 1 I = 0.8V, I = 0.8V, I = 3.2V, I = 0.8V 0.075 0.09 0.100 V 4 3 2 1 Reference current I V = 1.5V -0.5 A REF REF CR pin current I CR = 1.0V -4.6 -1.0 mA CR MD pin current I MD = 1.0V, CR = 4.0V -5.0 A MD DECAY pin current Low I V = 0.8V -10 A DECL DEC DECAY pin current High I V = 3.2V 5 A DECH DEC Thermal shutdown temperature TSD 170 C Logic ON voltage L 1 3.35 3.65 3.95 V VSD Logic OFF voltage L 2 3.20 3.50 3.80 V VSD LVSD hysteresis width L 0.065 0.15 0.23 V VSD No.5982-2/15