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MAX5070AASA Datasheet(PDF) 2 Page - Maxim Integrated Products |
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MAX5070AASA Datasheet(HTML) 2 Page - Maxim Integrated Products |
2 / 22 page High-Performance, Single-Ended, Current-Mode PWM Controllers 2 _______________________________________________________________________________________ ABSOLUTE MAXIMUM RATINGS ELECTRICAL CHARACTERISTICS (VCC = +15V, RT = 10kΩ, CT = 3.3nF, VVREF = OPEN, CVREF = 0.1µF, COMP = OPEN, VFB = 2V, CS = GND, TA = -40°C to +85°C, unless otherwise noted.) (Note 1) Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. VCC (Low-Impedance Source) to GND ..................-0.3V to +30V VCC (ICC < 30mA).....................................................Self Limiting OUT to GND ...............................................-0.3V to (VCC + 0.3V) OUT Current.............................................................±1A for 10µs FB, SYNC, COMP, CS, RT/CT, VREF to GND ...........-0.3V to +6V COMP Sink Current (MAX5070)..........................................10mA Continuous Power Dissipation (TA = +70°C) 8-Pin µMAX (derate 4.5mW/°C above +70°C) .............362mW 8-Pin SO (derate 5.9mW/°C above +70°C)...............470.6mW Operating Temperature Range (Automotive) ....-40°C to +125°C Maximum Junction Temperature .....................................+150°C Storage Temperature Range .............................-65°C to +150°C Lead Temperature (soldering, 10s) .................................+300°C PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS REFERENCE Output Voltage VVREF TA = +25°C, IVREF = 1mA 4.950 5.000 5.050 V Line Regulation ∆VLINE 12V < VCC < 25V, IVREF = 1mA 0.4 4 mV Load Regulation ∆VLOAD 1mA < IVREF < 20mA 6 25 mV Total Output Variation VREFT 1mA < IVREF < 20mA, 12V < VCC < 25V 4.9 5.1 V Reference Output-Noise Voltage VNOISE 10Hz < f < 10kHz, TA = +25°C 50 µV Reference Output Short Circuit IS_SC VVREF = 0V -30 -100 -180 mA OSCILLATOR Initial Accuracy TA = +25°C 51 54 57 kHz Voltage Stability 12V < VCC < 25V 0.2 0.5 % Temp Stability -40°C < TA < +85°C 0.5 % RT/CT Voltage Ramp (P-P)VRAMP 1.7 V RT/CT Voltage Ramp Valley VRAMP_VALLEY 1.1 V Discharge Current IDIS VRT/CT = 2V, TA = +25°C 7.9 8.3 8.7 mA Frequency Range fOSC 20 1000 kHz ERROR AMPLIFIER (MAX5070A/MAX5070B) FB Input Voltage VFB FB shorted to COMP 2.465 2.5 2.535 V FB Input Bias Current IB(FB) -0.01 -0.1 µA Open-Loop Voltage Gain AVOL 2V ≤ VCOMP ≤ 4V 100 dB Unity-Gain Bandwidth fGBW 1 MHz Power-Supply Rejection Ratio PSRR 12V ≤ VCC ≤ 25V (Note 2) 60 80 dB COMP Sink Current ISINK VFB = 2.7V, VCOMP = 1.1V 2 6 mA COMP Source Current ISOURCE VFB = 2.3V, VCOMP = 5V -0.5 -1.2 -1.8 mA COMP Output High Voltage VCOMPH VFB = 2.3V, RCOMP = 15kΩ to GND 5 5.8 V COMP Output Low Voltage VCOMPL VFB = 2.7V, RCOMP = 15kΩ to VREF 0.1 0.5 V CURRENT-SENSE AMPLIFIER Gain ACS (Notes 3, 4) 2.85 3 3.26 V/V MAX5070A/B (Note 3) 0.95 1 1.05 Maximum Current-Sense Signal VCS_MAX VCOMP = 5V, MAX5071_ 0.95 1 1.05 V |
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