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MAX8753ETI Datasheet(PDF) 5 Page - Maxim Integrated Products |
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MAX8753ETI Datasheet(HTML) 5 Page - Maxim Integrated Products |
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5 / 20 page  TFT LCD DC-DC Converter with Integrated Charge Pumps _______________________________________________________________________________________ 5 ELECTRICAL CHARACTERISTICS (Circuit of Figure 1, VIN = 3.0V, SHDN = LCDON = IN, VSUPP = VSUPN = 10V, PGND = GND, CREF = 0.22µF, CINTG = 470pF, TA = -40°C to +85°C. Typical values are at TA = +25°C, unless otherwise noted.) (Note 1) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS INPUT SUPPLIES Input Supply Range VIN 2.6 5.5 V Input Undervoltage Threshold VUVLO VIN rising, 100mV hysteresis (typ) 2.1 2.5 V IN Quiescent Supply Current IIN VFB = VFBP = 1.5V, VFBN = -0.2V 1.5 mA SUPP Supply Range VSUPP 713 V SUPP Quiescent Current ISUPP VFBP = 1.5V 0.8 mA SUPN Supply Range VSUPN 724 V SUPN Quiescent Current ISUPN VFBN = -0.2V 0.8 mA MAIN BOOST CONVERTER Output Voltage Range VMAIN VIN 13 V FB Regulation Voltage VFB 1.225 1.258 V FB Undervoltage Shutdown Threshold FB falling 75 200 mV Operating Frequency fOSC 0.75 1.25 MHz LX Switch On-Resistance RLX(ON) ILX = 100mA 0.7 Ω LX Current Limit ILX(MAX) Phase IV = fully on (> 3.0ms) 1.08 1.8 A POSITIVE CHARGE PUMP VSUPP Input Supply Range VSUPP 713 V VSUPP Overvoltage Threshold VSUPP = rising, hysteresis (typ) = 200mV 13.2 14.0 V FBP Regulation Voltage VFBP 1.213 1.287 V NEGATIVE CHARGE PUMP VSUPN Input Supply Range VSUPN 724 V FBN Regulation Voltage VFBN 213 287 mV VLOGIC REGULATOR FBL Regulation Voltage VFBL IOUTL = 0 to 300mA 1.220 1.275 V OUTL On-Resistance VIN = 3.3V, IOUTL = 100mA 1.5 Ω REFERENCE Reference Voltage VREF -2µA < IREF < +50µA 1.225 1.269 V Reference Undervoltage Threshold VREF rising 0.9 1.2 V LOGIC SIGNALS LCDON, SHDN Input Low Voltage Hysteresis = 0.15 x VIN (typ) 0.9 V LCDON, SHDN Input High Voltage 2.1 V |
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