LV8772-E ON Semiconductor

Ordering number : ENA1975 LV8772 Bi-CMOS LSI PWM Constant-Current Control LV8772 Allowable Operating Ratings at Ta = 25C Parameter Symbol Conditions Ratings Unit Supply voltage range VM 9 to 32 V Logic input voltage V 0 to 5.5 V IN VREF input voltage range VREF 0 to 3 V Electrical Characteristics at Ta = 25C, VM = 24V, VREF = 1.5V Ratings Parameter Symbol Conditions Unit min typ max Standby mode current drain IMst ST = L 100 400 A Current drain IM ST = H, with no load 3.2 5 mA VREG5 output voltage Vreg5 I = -1mA 4.5 5 5.5 V O Thermal shutdown temperature TSD Design guarantee 150 180 200 C Thermal hysteresis width TSD Design guarantee 40 C Motor driver Output on resistance Ronu I = 2.5A, Upper-side on resistance 0.3 0.4 O Rond I = 2.5A, Lower-side on resistance 0.25 0.33 O Output leakage current Ileak 50 A O Diode forward voltage VD ID = -2.5A 1.2 1.4 V Logic pin input current IL V = 0.8V 4 8 12 A IN IN IH V = 5V 30 50 70 A IN IN Logic high-level input voltage VH 2.0 V IN Logic low-level input voltage VL 0.8 V IN Current setting 4W1-2-phase Vtdac0 4W Step 0 (When initialized : channel 1 0.291 0.3 0.309 V comparator drive comparator level) threshold Vtdac1 4W Step 1 (Initial state+1) 0.291 0.3 0.309 V voltage Vtdac2 4W Step 2 (Initial state+2) 0.285 0.294 0.303 V (current step Vtdac3 4W Step 3 (Initial state+3) 0.279 0.288 0.297 V switching) Vtdac4 4W Step 4 (Initial state+4) 0.267 0.276 0.285 V Vtdac5 4W Step 5 (Initial state+5) 0.255 0.264 0.273 V Vtdac6 4W Step 6 (Initial state+6) 0.240 0.249 0.258 V Vtdac7 4W Step 7 (Initial state+7) 0.222 0.231 0.240 V Vtdac8 4W Step 8 (Initial state+8) 0.201 0.210 0.219 V Vtdac9 4W Step 9 (Initial state+9) 0.180 0.189 0.198 V Vtdac10 4W Step 10 (Initial state+10) 0.157 0.165 0.173 V Vtdac11 4W Step 11 (Initial state+11) 0.134 0.141 0.148 V Vtdac12 4W Step 12 (Initial state+12) 0.107 0.114 0.121 V Vtdac13 4W Step 13 (Initial state+13) 0.080 0.087 0.094 V Vtdac14 4W Step 14 (Initial state+14) 0.053 0.060 0.067 V Vtdac15 4W Step 15 (Initial state+15) 0.023 0.030 0.037 V W1-2-phase Vtdac0 W Step 0 (When initialized : channel 1 0.291 0.3 0.309 V drive comparator level) Vtdac4 W Step 4 (Initial state+1) 0.267 0.276 0.285 V Vtdac8 W Step 8 (Initial state+2) 0.201 0.21 0.219 V Vtdac12 W Step 12 (Initial state+3) 0.107 0.114 0.121 V 1-2 phase drive Vtdac0 H Step 0 (When initialized : channel 1 0.291 0.3 0.309 V comparator level) Vtdac8 H Step 8 (Initial state+1) 0.201 0.21 0.219 V 2 phase drive Vtdac8 F Step 8 (When initialized : channel 1 0.291 0.3 0.309 V comparator level) Current setting comparator Vtatt00 ATT1 = L, ATT2 = L 0.291 0.3 0.309 V threshold voltage Vtatt01 ATT1 = H, ATT2 = L 0.232 0.24 0.248 V (current attenuation rate switching) Vtatt10 ATT1 = L, ATT2 = H 0.143 0.15 0.157 V Vtatt11 ATT1 = H, ATT2 = H 0.053 0.06 0.067 V Chopping frequency Fchop Cchop = 180pF 45 55 65 kHz CHOP pin charge/discharge current Ichop 7 10 13 A Continued on next page. No.A1975-2/17