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MAX17085BETL+ Datasheet(PDF) 4 Page - Maxim Integrated Products |
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MAX17085BETL+ Datasheet(HTML) 4 Page - Maxim Integrated Products |
4 / 37 page Integrated Charger, Dual Main Step-Down Controllers, and Dual LDO Regulators 4 ______________________________________________________________________________________ ELECTRICAL CHARACTERISTICS (continued) (Circuit of Figure 1, no load on LDO5, LDO3, OUT5, OUT3, and REF, VCC = 5V, ON3 = ON5 = VCC, VDCIN = VLXC = VCSSP = VCSSN = 19V, VBSTC - VLXC = 5V, VBATT = VCSIP = VCSIN = 12.6V, VVCTL = VISET = 1.8V, CELLS = open, TA = 0°C to +85°C, unless oth- erwise noted. Typical values are at TA = +25°C.) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS DH3 On-Time tON3 IN = 12V, VOUT3 = 3.3V (Note 3) RTON = 549kI (300kHz - 10%) 866 1019 1171 ns RTON = 202kI (800kHz - 10%) 325 382 439 Minimum Off-Time tOFF(MIN) (Note 3) 210 270 330 ns Extended On-Time Blanking Duty cycle > 50%; not for production test 300 360 ns Soft-Start Time tSS Rising edge on ON_ 2 ms Ultrasonic Operating Frequency fSW(USONIC) SKIP = GND 15 22 kHz MAIN SMPS FAULT DETECTION OUT_ Overvoltage Trip Threshold (PGOOD Pulled Low Above This Level) With respect to error comparator threshold 13 16 19 % OUT_Overvoltage Fault Propagation Delay tOVP FB_ forced 50mV above trip threshold 10 F s OUT_ Undervoltage Protection Trip Threshold With respect to error comparator threshold 65 70 75 % OUT_ Output Undervoltage Fault Propagation Delay tUVP 10 F s PGOOD Lower Trip Threshold With respect to error comparator threshold, falling edge, hysteresis = 15mV -350 -250 -150 mV PGOOD Propagation Delay tPGOOD OUT5 or OUT3 forced 50mV beyond PGOOD trip threshold, falling edge 10 F s PGOOD Output Low Voltage PGOOD low impedance, ON5 = ON3 = GND, ISINK = 4mA 0.3 V PGOOD Leakage Current IPGOOD PGOOD high impedance, SMPS in regulation, PGOOD forced to 5.5V, TA = +25 °C 1 F A Fault Reset Timer 7 10 ms MAIN SMPS CURRENT LIMIT ILIM_ Adjustment Range 0.2 2.1 V ILIM_ Leakage Current TA = +25 °C -0.1 +0.1 F A Valley Current-Limit Threshold (Adjustable) VLIM_ (VAL) VAGND - VLX_ VILIM_ = 0.5V 40 50 60 mV VILIM_ = 1.00V 87 100 113 VILIM_ = 2.10V 184 210 236 Ultrasonic Negative Current-Limit Threshold INEG(US) 72 mV Current-Limit Threshold (Zero Crossing) VZX VAGND - VLX_, SKIP = VCC or GND, VILIM = 1V 1.5 mV |
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