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MC33063A Arkusz danych(PDF) 3 Page - ON Semiconductor |
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MC33063A Arkusz danych(HTML) 3 Page - ON Semiconductor |
3 / 15 page MC34063A, MC33063A, SC34063A, SC33063A, NCV33063A http://onsemi.com 3 ELECTRICAL CHARACTERISTICS (VCC = 5.0 V, TA = Tlow to Thigh [Note 4], unless otherwise specified.) Characteristics Symbol Min Typ Max Unit OSCILLATOR Frequency (VPin 5 = 0 V, CT = 1.0 nF, TA = 25°C) fosc 24 33 42 kHz Charge Current (VCC = 5.0 V to 40 V, TA = 25°C) Ichg 24 35 42 mA Discharge Current (VCC = 5.0 V to 40 V, TA = 25°C) Idischg 140 220 260 mA Discharge to Charge Current Ratio (Pin 7 to VCC, TA = 25°C) Idischg/Ichg 5.2 6.5 7.5 − Current Limit Sense Voltage (Ichg = Idischg, TA = 25°C) Vipk(sense) 250 300 350 mV OUTPUT SWITCH (Note 5) Saturation Voltage, Darlington Connection (ISW = 1.0 A, Pins 1, 8 connected) VCE(sat) − 1.0 1.3 V Saturation Voltage (Note 6) (ISW = 1.0 A, RPin 8 = 82 W to VCC, Forced b ] 20) VCE(sat) − 0.45 0.7 V DC Current Gain (ISW = 1.0 A, VCE = 5.0 V, TA = 25°C) hFE 50 75 − − Collector Off−State Current (VCE = 40 V) IC(off) − 0.01 100 mA COMPARATOR Threshold Voltage TA = 25°C TA = Tlow to Thigh Vth 1.225 1.21 1.25 − 1.275 1.29 V Threshold Voltage Line Regulation (VCC = 3.0 V to 40 V) MC33063, MC34063 MC33063V, NCV33063 Regline − − 1.4 1.4 5.0 6.0 mV Input Bias Current (Vin = 0 V) IIB − −20 −400 nA TOTAL DEVICE Supply Current (VCC = 5.0 V to 40 V, CT = 1.0 nF, Pin 7 = VCC, VPin 5 > Vth, Pin 2 = GND, remaining pins open) ICC − − 4.0 mA 4. Tlow = 0°C for MC34063, SC34063; −40°C for MC33063, SC33063, MC33063V, NCV33063 Thigh = +70°C for MC34063, SC34063; +85°C for MC33063, SC33063; +125°C for MC33063V, NCV33063 5. Low duty cycle pulse techniques are used during test to maintain junction temperature as close to ambient temperature as possible. 6. If the output switch is driven into hard saturation (non−Darlington configuration) at low switch currents (≤ 300 mA) and high driver currents (≥ 30 mA), it may take up to 2.0 ms for it to come out of saturation. This condition will shorten the off time at frequencies ≥ 30 kHz, and is magnified at high temperatures. This condition does not occur with a Darlington configuration, since the output switch cannot saturate. If a non−Darlington configuration is used, the following output drive condition is recommended: Forced b of output switch : IC output IC driver – 7.0 mA * w 10 * The 100 W resistor in the emitter of the driver device requires about 7.0 mA before the output switch conducts. |
Podobny numer części - MC33063A |
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Podobny opis - MC33063A |
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