Ordering number : ENA2205 LV8850GA Bi-CMOS IC LV8850GA Recommended Operating Conditions at Ta = 25C Ratings Parameter Symbol Conditions Unit min typ max Operating voltage V V pin 12 V CC CC *2 Operating supply voltage V V pin 4 16V CCOP CC *3 VG pin voltage range V VG pin (VCC+7V) 21V G SOSC, LIM, VCTL, PWMOSC, CSDOSC Pin voltage range V 0 VREG V L SOFTST, CTLSW, SYNSEL, F/R pin Output current range I UL, VL, WL, UH, VH, WH pin 0 25 mA O *4 Input PWM frequency range f(PWM) 20 60 kHz *2: When the voltage of VCC is reduced, the speed might not be controllable properly depending on settings. *3: For VG pin, be applied either VCC+7V or 21V, whichever is lower. *4: Make sure to adjust it according to External-FETs and types of Motor and maximum rotation speed. Electrical Characteristics at Ta = 25C, V = 12V CC Ratings Parameter Symbol Conditions Unit Min typ max Supply current I DC input mode, PWM=100% 7 10 13 mA CC Internal oscillation circuit Oscillation frequency f 8 10 12MHz (MOSC) *5 Constant voltage output (VREG pin) Output voltage1 V 3.6 4.0 4.2 V VREG Load fluctuation V Io = -5 to 0 mA 100 mV REG *6 Charge pump output (VG pin) Output voltage V Vcc+7 V VG Output block On-resister of Upper-Tr RONHH Io=-10mA 25 40 in H-side On-resister of Lower-Tr RONHL Io=10mA 40 60 in H-side On-resister of Upper-Tr RONLH Io=-10mA 40 60 in L-side On-resister of Lower-Tr 25 40 RONLL Io=10mA in L-side VCTL amplifier (VCTL pin) at DC input mode (CTLSW pin=High) Input bias current IB (CTL) 1 1 uA Gain G (CTL) 0.57 V/V 0% duty input voltage VIN1 (CTL) 3.0 3.2 3.4 V Max duty input voltage VIN2 (CTL) 1.35 1.55 1.75 V During direct PWM input (VCTL pin) at PWM input mode (CTLSW pin=Low) High level input voltage VIH (PWM) Out transistor ON VREG 1 VREG V Low level input voltage VIL (PWM) Output transistor OFF 0 1 V Input mode select pin (CTLSW pin) High level input voltage VIH(CTLSW) DC input mode VREG 1 VREG V Low level input voltage VIL(CTLSW) PWM input mode 0 1 V Internal PWM oscillator (PWMOSC pin) High level output voltage VOH (PWM) 2.7 3.0 3.3 V Low level output voltage VOL (PWM) 1.75 2.0 2.25 V Charge/ discharge current I (PWM) 2.5V 30 45 60 uA *7 Forward / Reverse switch (F/R pin) High level input voltage VIH (FR) Energization: UOUT -> VOUT -> WOUT VREG 1 VREG V Low level input voltage VIL (FR) Energization: UOUT -> WOUT -> VOUT 0 1 V Continue to the next page No.A2205-2/14