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UC3715 датащи(PDF) 3 Page - Texas Instruments |
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UC3715 датащи(HTML) 3 Page - Texas Instruments |
3 / 8 page 3 UC1714/5 UC2714/5 UC3714/5 ELECTRICAL CHARACTERISTICS: Unless otherwise stated, VCC = 15V, ENBL ≥ 2V, RT1 = 100kΩ from T1 to GND, RT2 = 100kΩ from T2 to GND, and −55°C < TA < 125°C for the UC1714/5, −40°C < TA < 85°C for the UC2714/5, and 0°C < TA < 70 °C for the UC3714/5, TA = TJ. PARAMETER TEST CONDITIONS MIN TYP MAX UNITS Auxiliary Driver (AUX) AUX Output Low, Sat (VAUX) VIN = 2.0V, IOUT = 20mA 0.3 0.8 V VIN = 2.0V, IOUT = 200mA 1.8 2.6 V AUX Output High, Sat (VCC – VAUX)VIN = 0.8V, IOUT = -10mA 2.1 3.0 V VIN = 0.8V, IOUT = -100mA 2.3 3.0 V Rise Time CL = 1000pF 45 60 ns Fall Time CL = 1000pF 30 60 ns T2 Delay, PWR to AUX INPUT falling edge, RT2 = 10kΩ (Note 4) 20 50 80 ns T2 Delay, PWR to AUX INPUT falling edge, RT2 = 100kΩ (Note 4) 250 350 550 ns AUX Prop Delay INPUT rising edge, 50% (Note 3) 35 80 ns Enable (ENBL) Input Threshold 0.8 1.2 2.0 V Input Current, IIH ENBL = 15V 1 10 µA Input Current, IIL ENBL = 0V −1 −10 µA T1 Current Limit T1 = 0V −1.6 −2mA Nominal Voltage at T1 2.7 3 3.3 V Minimum T1 Delay T1 = 2.5V, (Note 4) 40 70 ns T2 Current Limit T2 = 0V −1.2 −2mA Nominal Voltage at T2 2.7 3 3.3 V Minumum T2 Delay T2 = 2.5V, (Note 4) 50 100 ns Input (INPUT) Input Threshold 0.8 1.4 2.0 V Input Current, IIH INPUT = 15V 1 10 µA Input Current, IIL INPUT = 0V −5 −20 µA Note 3: Propagation delay times are measured from the 50% point of the input signal to the 10% point of the output signal’s transi- tion with no load on outputs. Note 4: T1 delay is defined from the 50% point of the transition edge of AUX to the 10% of the rising edge of PWR. T2 delay is de- fined from the 90% of the falling edge of PWR to the 50% point of the transition edge of AUX. PIN DESCRIPTIONS AUX: The AUX switches immediately at INPUT’s rising edge but waits through the T2 delay after INPUT’s falling edge before switching. AUX is capable of sourcing 0.5A and sinking 1.0A of drive current. See the Time Relation- ships diagram below for the difference between the UC1714 and UC1715 for INPUT, MAIN, and AUX. During sleep mode, AUX is inactive with a high impedance. ENBL: The ENBL input switches at TTL logic levels (ap- proximately 1.2V), and its input range is from 0V to 20V. The ENBL input will place the device into sleep mode when it is a logical low. The current into VCC during the sleep mode is typically 220 µA. GND: This is the reference pin for all input voltages and the return point for all device currents. It carries the full peak sinking current from the outputs. Any tendency for the outputs to ring below GND voltage must be damped or clamped such that GND remains the most negative potential. |
Аналогичный номер детали - UC3715 |
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Аналогичное описание - UC3715 |
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