Ordering number : ENA1674A LV8712T Bi-CMOS LSI PWM Constant-Current Control LV8712T Allowable Operating Ratings at Ta = 25C Parameter Symbol Conditions Ratings Unit Motor supply voltage range VM 4 to 16 V Logic supply voltage range V 2.7 to 5.5 V CC Logic input voltage V -0.3 tp V +0.3 V IN CC VREF input voltage range VREF 0 to V -1.8 V CC Electrical Characteristics at Ta = 25C, VM = 12V, V = 3.3VVREF = 1.0V CC Ratings Parameter Symbol Conditions Unit min typ max Standby mode current drain IMstn PS = L, no load 1 A I stn PS = L, no load 1 A CC Current drain IM PS = H, no load 0.3 0.5 0.7 mA I PS = H, no load 0.9 1.3 1.7 mA CC Thermal shutdown temperature TSD Design guarantee 180 C Thermal hysteresis width TSD Design guarantee 40 C V low voltage cutting voltage VthV 2.1 2.4 2.7 V CC CC Low voltage hysteresis voltage VthHIS 100 130 160 mV REG5 output voltage Vreg5 I = -1mA 4.5 5 5.5 V O Output on resistance RonU I = -800mA, Source-side on resistance 0.78 1.0 O RonD I = 800mA, Sink-side on resistance 0.32 0.43 O Output leakage current Ileak V = 15V 10 A O O Diode forward voltage VD ID = -800mA 1.0 1.2 V Logic pin input current IL V = 0.8V 4 8 12 A IN IN IH V = 3.3V 22 33 45 A IN IN Logic high-level input voltage VH 2.0 V IN Logic low-level input voltage VL 0.8 V IN VREF input current I VREF = 1.0V -0.5 A REF Current setting 2W1-2-phase Vtdac0 2W Step 0 (When initialized : channel 1 0.191 0.2 0.209 V comparator drive comparator level) threshold Vtdac1 2W Step 1 (Initial state+1) 0.187 0.196 0.205 V voltage Vtdac2 2W Step 2 (Initial state+2) 0.175 0.184 0.193 V (current step Vtdac3 2W Step 3 (Initial state+3) 0.158 0.166 0.174 V switching) Vtdac4 2W Step 4 (Initial state+4) 0.132 0.140 0.148 V Vtdac5 2W Step 5 (Initial state+5) 0.102 0.110 0.118 V Vtdac6 2W Step 6 (Initial state+6) 0.068 0.076 0.084 V Vtdac7 2W Step 7 (Initial state+7) 0.032 0.040 0.048 V W1-2-phase Vtdac0 W Step 0 (When initialized : channel 1 0.191 0.200 0.209 V drive comparator level) Vtdac2 W Step 2 (Initial state+1) 0.175 0.184 0.193 V Vtdac4 W Step 4 (Initial state+2) 0.132 0.140 0.148 V Vtdac6 W Step 6 (Initial state+3) 0.068 0.076 0.084 V 1-2 phase drive Vtdac0 H Step 0 (When initialized : channel 1 0.191 0.200 0.209 V comparator level) Vtdac4 H Step 4 (Initial state+1) 0.132 0.140 0.148 V 2 phase drive Vtdac4 F Step 4 (When initialized : channel 1 0.191 0.200 0.209 V comparator level) Current setting comparator Vtatt00 ATT1 = L, ATT2 = L 0.191 0.200 0.209 V threshold voltage Vtatt01 ATT1 = H, ATT2 = L 0.152 0.160 0.168 V (current attenuation rate switching) Vtatt10 ATT1 = L, ATT2 = H 0.112 0.120 0.128 V Vtatt11 ATT1 = H, ATT2 = H 0.072 0.080 0.088 V Chopping frequency Fchop Cchop = 220pF 36 45 54 kHz CHOP pin threshold voltage V H 0.6 0.7 0.8 V CHOP V L 0.17 0.2 0.23 V CHOP CHOP pin charge/discharge current Ichop 7 10 13 A MONI pin saturation voltage Vsatmon Imoni = 1mA 250 400 mV No.A1674-2/14