Ordering number : EN6193B LB1945H Monolithic Digital IC PWM Current Control Type LB1945H Allowable Operating Ranges at Ta = 25C Parameter Symbol Conditions Ratings Unit Motor supply voltage V 10 to 28 V BB Logic supply voltage V 4.75 to 5.25 V CC Reference voltage V 1.5 to 5.0 V REF Electrical Characteristics at Ta = 25C, V = 24V, V = 5V, V = 5.0V BB CC REF Ratings Parameter Symbol Conditions Unit min typ max Output Block Output stage supply current I ON I = 0.8V, I = 0.8V, ENABLE = 0.8V 0.5 1.0 2.0 mA BB 1 2 I OFF ENABLE = 3.2V 0.2 mA BB Output saturation voltage Vsat1 I = +0.5A, sink 0.3 0.5 V O O Vsat2 I = +0.8A, sink 0.5 0.7 V O O Vsat3 I = -0.5A, source 1.6 1.8 V O O Vsat4 I = -0.8A, source 1.8 2.0 V O O Output leakage current I1(leak) V = V , sink 50 A O O BB I2(leak) V = 0V, source -50 A O O Output sustain voltage V L = 3.9mH, I = 1.0A, Design guarantee value * 30 V SUS O Logic Block Logic supply current I ON I = 0.8V, I = 0.8V, ENABLE = 0.8V 50 70 92 mA CC 1 2 I OFF ENABLE = 3.2V 7 10 13 mA CC Input voltage V 3.2 V IH V 0.8 V IL Input current I V = 3.2V 35 50 65 A IH IH I V = 0.8V 7 10 13 A IL IL Set current control threshold Vref/Vsen I = 0.8V, I = 0.8V 9.5 10 10.5 1 2 value I = 3.2V, I = 0.8V 13.5 15 16.5 1 2 I = 0.8V, I = 3.2V 25.5 30 34.5 1 2 Reference current Iref Vref = 5.0V, I = 0.8V, I = 0.8V 17.5 25 32.5 A 1 2 CR pin current I CR = 1.0V -1.0 mA CR Thermal shutdown temperature T-TSD Design guarantee value * 170 C Temperature hysteresis width Ts hys 40 C * Design guarantee value, Do not measurement. No.6193-2/7