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MAX16990ATCF Datasheet(PDF) 3 Page - Maxim Integrated Products |
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MAX16990ATCF Datasheet(HTML) 3 Page - Maxim Integrated Products |
3 / 21 page Electrical Characteristics (continued) (VSUP = 14V, TA = TJ = -40NC to +125NC, unless otherwise noted. Typical values are at TA =+25NC.) (Note 2) www.maximintegrated.com Maxim Integrated │ 3 MAX16990/MAX16992 36V, 2.5MHz Automotive Boost/ SEPIC Controllers PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS OSCILLATOR Switching Frequency fSW RFSET = 69kI 360 400 440 kHz RFSET = 12kI 2000 2200 2400 Spread-Spectrum Spreading Factor SS B, D, and F versions Q 6 % of fSW Switching Frequency Range fSWR When set with resistor on pin MAX16990 100 1000 kHz MAX16992 1000 2500 FSET/SYNC Frequency Range fSYNC Using external SYNC signal MAX16990 220 1000 kHz MAX16992 1000 2500 FSET Regulation Voltage VFSET 12kI < RFSET < 69kI 0.9 V Soft-Start Time tSS Internally set 6 9 12 ms Hiccup Period tHICCUP 55 ms Maximum Duty Cycle DCMAX MAX16990, RFSET = 69kI 93 % MAX16992, RFSET = 12kI 85 Minimum On-Time tON 50 80 110 ns THERMAL SHUTDOWN Thermal-Shutdown Temperature TS Temperature rising 165 N C Thermal-Shutdown Hysteresis TH 10 N C GATE DRIVERS DRV Pullup Resistance RDRVH IDRV = 100mA 3 5.5 I DRV Pulldown Resistance RDRVL IDRV = -100mA 1.4 2.5 I DRV Output Peak Current IDRV Sourcing, CDRV = 10nF 0.75 A Sinking, CDRV = 10nF 1 REGULATION/CURRENT SENSE FB Regulation Voltage VFB VREFIN = VPVL Across full line, load, and temperature range 0.99 1 1.01 V VREFIN = 2V 1.98 2 2.02 VREFIN = 0.5V 0.495 0.5 0.505 FB Input Current IFB -0.5 +0.5 F A ISNS Threshold 212 250 288 mV ISNS Leading-Edge Blanking Time tBLANK MAX16990 60 ns MAX16992 40 Current-Sense Gain AVI 8 V/V Peak Slope Compensation Current-Ramp Magnitude Added to ISNS input 40 50 60 F A PGOOD Threshold VPG Percentage of final value Rising 85 90 95 % Falling 80 85 90 |
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