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MAX8795AGCJ+ Datasheet(PDF) 3 Page - Maxim Integrated Products |
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MAX8795AGCJ+ Datasheet(HTML) 3 Page - Maxim Integrated Products |
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3 / 31 page  TFT-LCD DC-DC Converter with Operational Amplifiers _______________________________________________________________________________________ 3 ELECTRICAL CHARACTERISTICS (continued) (VIN = 3V, VMAIN = VSUP = 14V, VPGND = VAGND = VBGND = 0V, IREF = 25µA, TA = 0°C to +85°C. Typical values are at TA = +25°C, unless otherwise noted.) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS FB Transconductance ∆ICOMP = ±2.5µA 75 160 280 µS FB Voltage Gain From FB to COMP 700 V/ V LX On-Resistance RLX(ON) ILX = 200mA 160 260 m Ω LX Leakage Current ILX VLX = 19V 10 20 µA LX Current Limit ILIM VFB = 1.2V, duty cycle = 75% 2.5 3.0 3.5 A Current-Sense Transresistance 0.1 0.2 0.3 V/A Soft-Start Period tSS 14 ms Soft-Start Step Size VREF / 128 V OPERATIONAL AMPLIFIERS SUP Supply Range VSUP 6.0 18.0 V SUP Overvoltage Fault Threshold 18.0 19 19.9 V SUP Supply Current ISUP Buffer configuration, VPOS_ = VSUP / 2, no load 3.5 5.0 mA Input Offset Voltage VOS (VNEG_, VPOS_, VOUT_) ≅ VSUP / 2 0 12 mV Input Bias Current IBIAS (VNEG_ , VPOS_, VOUT_) ≅ VSUP / 2 -50 0 +50 nA Input Common-Mode Voltage Range VCM 0VSUP V Common-Mode Rejection Ratio CMRR 0 ≤ (VNEG_, VPOS_) ≤ VSUP 45 80 dB Open-Loop Gain 125 dB Output Voltage Swing, High VOH IOUT_ = 5mA VSUP - 100 VSUP - 50 mV Output Voltage Swing, Low VOL IOUT_ = -5mA 50 100 mV Short-Circuit Current To VSUP / 2, source or sink 75 130 mA Power-Supply Rejection Ratio PSRR DC, 6V ≤ VSUP ≤ 18V, (VNEG_, VPOS_) ≅ VSUP / 2 60 dB Slew Rate 45 V/µs -3dB Bandwidth RL = 10k Ω, CL = 10pF, buffer configuration 20 MHz GATE-ON LINEAR-REGULATOR CONTROLLER FBP Regulation Voltage VFBP IDRVN = 100µA 1.231 1.250 1.269 V FBP Fault Trip Level VFBP falling 0.96 1.00 1.04 V FBP Input Bias Current IFBP VFBP = 1.25V -50 +50 nA FBP Effective Load-Regulation Error (Transconductance) VDRVP = 10V, IDRVP = 50µA to 1mA -0.7 -1.5 % FBP Line (IN) Regulation Error IDRVP = 100µA, 2.5V < VIN < 6V ±1 ±10 mV DRVP Sink Current IDRVP VFBP = 1.1V, VDRVP = 10V 1 5 mA DRVP Off-Leakage Current VFBP = 1.4V, VDRVP = 34V 0.01 10 µA Soft-Start Period tSS 14 ms Soft-Start Step Size VREF / 128 V |
Similar Part No. - MAX8795AGCJ+ |
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Similar Description - MAX8795AGCJ+ |
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