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MAX16818 Datasheet(PDF) 3 Page - Maxim Integrated Products |
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MAX16818 Datasheet(HTML) 3 Page - Maxim Integrated Products |
3 / 25 page 1.5MHz, 30A High-Efficiency, LED Driver with Rapid LED Current Pulsing _______________________________________________________________________________________ 3 ELECTRICAL CHARACTERISTICS (continued) (VCC = 5V, VDD = VCC, TA = TJ = TMIN to TMAX, unless otherwise noted. Typical specifications are at TA = +25°C.) (Note 1) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS CLKOUT Phase Shift φ_CLKOUT With respect to DH, fSW = 125kHz 180 Degrees CLKOUT Output Low Level VCLKOUTL ISINK = 2mA 0.4 V CLKOUT Output High Level VCLKOUTH ISOURCE = 2mA 4.5 V SYNC Input-High Pulse Width tSYNC 200 ns SYNC Input Clock High Threshold VSYNCH 2.0 V SYNC Input Clock Low Threshold VSYNCL 0.4 V SYNC Pullup Current ISYNC_OUT VRT/SYNC = 0V 250 750 µA SYNC Power-Off Level VSYNC_OFF 0.4 V INDUCTOR CURRENT LIMIT Average Current-Limit Threshold VCL CSP to CSN 24.0 26.9 28.2 mV Reverse Current-Limit Threshold VCLR CSP to CSN -3.2 -2.3 -0.1 mV Cycle-by-Cycle Current Limit CSP to CSN 60 mV Cycle-by-Cycle Overload VCSP to VCSN = 75mV 260 ns Hiccup Divider Ratio LIM to VCM, no switching 0.547 0.558 0.565 V/V Hiccup Reset Delay 200 ms LIM Input Impedance LIM to SGND 55.9 k Ω CURRENT-SENSE AMPLIFIER CSP or CSN Input Resistance RCS 4k Ω Common-Mode Range VCMR(CS) VIN = 7V to 28V 0 5.5 V Input Offset Voltage VOS(CS) 0.1 mV Amplifier Gain AV(CS) 34.5 V/V 3dB Bandwidth f3dB 4 MHz CURRENT-ERROR AMPLIFIER (TRANSCONDUCTANCE AMPLIFIER) Transconductance gm 550 µS Open-Loop Gain AVOL(CE) No load 50 dB DIFFERENTIAL VOLTAGE AMPLIFIER FOR LED CURRENT (DIFF) Common-Mode Voltage Range VCMR(DIFF) 0 +1.0 V DIFF Output Voltage VCM VSENSE+ = VSENSE- = 0V 0.6 V Input Offset Voltage VOS(DIFF) -1 +1 mV Amplifier Gain AV(DIFF) 0.994 1 1.006 V/V 3dB Bandwidth f3dB CDIFF = 20pF 3 MHz Minimum Output-Current Drive IOUT(DIFF) 4mA SENSE+ to SENSE- Input RVS VSENSE- = 0V 50 100 k Ω V_IOUT AMPLIFIER Gain-Bandwidth Product VV_IOUT = 2.0V 4 MHz 3dB Bandwidth VV_IOUT = 2.0V 1 MHz Output Sink Current 30 µA Output Source Current 90 µA |
Similar Part No. - MAX16818_09 |
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Similar Description - MAX16818_09 |
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