Ordering number : ENA1864A LV8740V Monolithic Linear IC LV8740V Recommended Operating Conditions at Ta = 25C Parameter Symbol Conditions Ratings Unit Supply voltage range V VM , VM1 , VM2 9 to 35 V M Logic input voltage V ST , OE , DM , MD1/DC11 , MD2/DC12 , 0 to 5.5 V IN FR/DC21 , STP/DC22 , RST , EMM , ATT1 , ATT2 VREF input voltage range VREF 0 to 3.0 V Electrical Characteristics at Ta = 25C, V = 24V, VREF = 1.5V M Ratings Parameter Symbol Conditions Unit min typ max Standby mode current drain IMstn ST = L , I(VM)+I(VM1)+I(VM2) 180 250 A Current drain IM ST = H, OE = L, no load 3 5mA I(VM)+I(VM1)+I(VM2) VREG5 output voltage Vreg5 I=-1mA 4.75.0 5.3V O Thermal shutdown temperature TSD Design guarantee 150 180 210 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 0.2 0.25 O Output leakage current Ileak VM=35V 50 A O Diode forward voltage VD ID = -2.5A 1.1 1.3 V ST pin input current IL V = 0.8V 3 8 15 A ST IN IH V = 5V 48 80 112 A ST IN Logic pin input current I L OE , DM , MD1/DC11 , MD2/DC12 , 38 15 A IN (other ST pin) FR/DC21 , STP/DC22 , RST , EMM , ATT1 , ATT2 , V = 0.8V IN IH V = 5V 30 50 70 A IN IN Logic input voltage High V h ST , OE , DM , MD1/DC11 , MD2/DC12 , 2.0 5.5 V IN FR/DC21 , STP/DC22 , RST , EMM , ATT1 , Low Vl 0 0.8V IN ATT2 Current setting Quarter Vtdac0 W Step 0(When initialized : channel 1 0.290 0.300 0.310 V comparator step comparator level) threshold voltage resolution Vtdac1 W Step 1 (Initial state+1) 0.2600.270 0.280V (Current step Vtdac2 W Step 2 (Initial state+2) 0.2000.210 0.220V switch) Vtdac3 W Step 3 (Initial state+3) 0.0950.105 0.115V Half step Vtdac0 H Step 0 (When initialized: channel 1 0.290 0.300 0.310 V resolution comparator level) Vtdac2 H Step 2 (Initial state+1) 0.2000.210 0.220V Half step Vtdac0 HF Step 0 (Initial state, channel 1 comparator 0.290 0.300 0.310 V resolution level) (full torque) Vtdac2 HF Step 2 (Initial state+1) 0.2900.300 0.310V Full step Vtdac2 F Step 2 0.290 0.300 0.310 V resolution Current setting comparator Vtatt00 ATT1=L, ATT2=L 0.290 0.300 0.310 V threshold voltage Vtatt01 ATT1=H, ATT2=L 0.190 0.200 0.210 V (Current attenuation rate switch) Vtatt10 ATT1=L, ATT2=H 0.140 0.150 0.160 V Vtatt11 ATT1=H, ATT2=H 0.090 0.100 0.110 V Chopping frequency Fchop RCHOP = 20k 4562.5 75kHz VREF pin input current Iref VREF = 1.5V -0.5 A MONI pin saturation voltage Vsatmon I=1mA 50 100mV MONI Charge pump VG output voltage VG 28 28.7 29.8 V Rise time tONG VG = 0.1F , Between CP1-CP2 0.1uF 0.5 ms ST=H VG=VM+4V Oscillator frequency Fosc RCHOP = 20k 90125 150kHz Continued on next page. No.A1864-2/25