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LV5768V Datasheet(PDF) 2 Page - Sanyo Semicon Device |
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LV5768V Datasheet(HTML) 2 Page - Sanyo Semicon Device |
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2 / 15 page  LV5768V No.A2093-2/15 Recommended Operating Range at Ta = 25 °C Parameter Symbol Conditions Ratings Unit Supply voltage range VIN 8.5 to 42 V Error amplifier input voltage VFB 0 to 1.6 V Oscillatory frequency FOSC 80 to 500 kHz Electrical Characteristics at Ta = 25°C, VIN = 12V Parameter Symbol Conditions Ratings Unit min typ max Reference voltage block Internal reference voltage Vref Including offset of E/A 0.654 0.67 0.686 V 5V power supply VDD IOUT = 0 to 5mA 4.7 5.2 5.7 V Triangular waveform oscillator block Oscillation frequency FOSC RT=220kΩ 110 125 140 kHz Frequency variation FOSC DV VIN = 8.5 to 42V 1 % Oscillation frequency fold back detection voltage VOSC FB FB voltage detection after SS ends 0.1 V Oscillation frequency after fold back FOSC FB 1/3FOSC kHz ON/OFF circuit block IC start-up voltage VEN on 2.5 3.0 3.5 V IC off voltage VEN off 1.0 1.2 1.4 V Soft start circuit block Soft start source current ISS SC EN > 3.5V 4 5 6 μA Soft start sink current ISS SK EN < 1V, VDD = 5V 2 mA UVLO circuit block UVLO lock release voltage VUVLO 8 V UVLO hysteresis VUVLO H 0.7 V Error amplifier Input bias current IEA IN 100 nA Error amplifier gain GEA 1000 1400 1800 μA/V Sink output current IEA OSK FB = 1.0V -100 μA Source output current IEA OSC FB = 0V 100 μA Current detection amplifier gain GISNS 1.5 over current limiter circuit block Reference current ILIM1 -10% 18.5 +10% μA Over current detection comparator offset voltage VLIM OFS -5 +5 mV Over current detection comparator common mode input range VIN-0.45 VIN V PWM comparator Input threshold voltage (FOSC=125kHz) Vt max Duty cycle = DMAX 0.9 1.0 1.1 V Vt0 Duty cycle = 0% 0.4 0.5 0.6 V Maximum ON duty DMAX 85 90 95 % Output block Output stage ON resistance (the upper side) RONH 5 Ω Output stage ON resistance (the under side) RONL 5 Ω Output stage ON current (the upper side) IONH 240 mA Output stage ON current (the under side) IONL 240 mA The whole device Standby current ICCS EN < 1V 10 μA Mean consumption current ICCA EN > 3.5V 3 mA Continued on next page. |
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