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MAX16814UUP+ Datasheet(PDF) 3 Page - Maxim Integrated Products |
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MAX16814UUP+ Datasheet(HTML) 3 Page - Maxim Integrated Products |
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3 / 25 page  Electrical Characteristics (continued) (VIN = VEN = 12V, RRT = 12.25kI, RSETI = 15kI, CVCC = 1FF, VCC = VDRV, NDRV = COMP = OUT_ = unconnected, VRSDT = VDIM = VCC, VOVP = VCS = VLEDGND = VPGND = VSGND = 0V, TA = TJ = -40NC to +125NC for MAX16814A_ _, TA = -40NC to +85NC for MAX16814BE_ _, and TA = TJ = 0NC to +85NC for MAX16814U_ _ and MAX16814BU_ _, unless otherwise noted. Typical values are at TA = +25NC.) (Note 2) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Maximum Duty Cycle fSW = 200kHz to 600kHz, MAX16814A_ _ and MAX16814U_ _ 85 89 93 % fSW = 600kHz to 2000kHz, MAX16814A_ _ and MAX16814U_ _ 82 86 90 fSW = 200kHz to 600kHz, MAX16814B_ _ 90 94 98 fSW = 600kHz to 2000kHz, MAX16814B _ _ _ 86 90 94 Oscillator Frequency Accuracy fSW = 200kHz to 2MHz, MAX16814A_ _ and MAX16814U_ _ -7.5 +7.5 % fSW = 200kHz to 2MHz, MAX16814B_ _ _ -7 +7 Sync Rising Threshold 4 V Minimum Sync Frequency 1.1fSW Hz PWM COMPARATOR PWM Comparator Leading-Edge Blanking Time 60 ns PWM to NDRV Propagation Delay Including leading-edge blanking time 90 ns SLOPE COMPENSATION Peak Slope Compensation Current Ramp Magnitude Current ramp added to the CS input, MAX16814A_ _ only 44 49 54 µA x fSW Current ramp added to the CS input, MAX16814U_ _ and MAX16814B_ _ _ 45 50 55 CS LIMIT COMPARATOR Current-Limit Threshold (Note 3) 396 416 437 mV CS Limit Comparator to NDRV Propagation Delay 10mV overdrive, excluding leading-edge blanking time 10 ns ERROR AMPLIFIER OUT_ Regulation Voltage 1 V Transconductance gM 340 600 880 µS No-Load Gain (Note 4) 75 dB COMP Sink Current VOUT_ = 5V, VCOMP = 2.5V 160 375 800 µA COMP Source Current VOUT_ = 0V, VCOMP = 2.5V 160 375 800 µA MOSFET DRIVER NDRV On-Resistance ISINK = 100mA (nMOS) 0.9 ω ISOURCE = 100mA (pMOS) 1.1 Peak Sink Current VNDRV = 5V 2.0 A Peak Source Current VNDRV = 0V 2.0 A Rise Time CLOAD = 1nF 6 ns Fall Time CLOAD = 1nF 6 ns LED CURRENT SOURCES OUT_ Current-Sink Range VOUT_ = VREF 20 150 mA Channel-to-Channel Matching IOUT_ = 100mA ±2 % IOUT_ = 100mA, all channels on ±1.5 www.maximintegrated.com Maxim Integrated │ 3 MAX16814 Integrated, 4-Channel, High-Brightness LED Driver with High-Voltage DC-DC Controller |
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