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MAX1747EUP Datasheet(PDF) 2 Page - Maxim Integrated Products |
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MAX1747EUP Datasheet(HTML) 2 Page - Maxim Integrated Products |
2 / 13 page Triple Charge-Pump TFT LCD DC-DC Converter 2 _______________________________________________________________________________________ ABSOLUTE MAXIMUM RATINGS ELECTRICAL CHARACTERISTICS (VIN = VSUPM = +3.0V, VSUPP = VSUPN = +5V, TGND = PGND = GND, I SHDN = 22µA, COUT = 2 ✕ 4.7µF, CREF = 0.22µF, CINTG = 1500pF, VOUT = +5V, TA = 0°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.) Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. IN, SUPM, OUT, TGND to GND................................-0.3V to +6V SHDN........................................................................-0.3V to +1V PGND to GND.....................................................................±0.3V SUPM to IN .........................................................................±0.3V CXN to PGND.........................................-0.3V to (VSUPM + 0.3V) CXP to PGND ............................(VSUPM - 0.3V) to (VOUT + 0.3V) DRVN to GND .........................................-0.3V to (VSUPN + 0.3V) DRVP to GND..........................................-0.3V to (VSUPP + 0.3V) RDY to GND ...........................................................-0.3V to +14V SUPP, SUPN to GND..............................................-0.3V to +14V INTG, REF, FB, FBN, FBP to GND ...............-0.3V to (VIN + 0.3V) Continuous Current into: SUPM, CXN, CXP, OUT ..............................................±800mA SUPP, SUPN, DRVN, DRVP........................................±200mA SHDN...........................................................................+100µA All Other Pins ....................................................................±10mA Continuous Power Dissipation (TA = +70°C) 20-Pin TSSOP (derate 10.9mW/°C above +70°C) .......879mW Operating Temperature Range............................-40°C to +85°C Junction Temperature ......................................................+150°C Storage Temperature Range .............................-65°C to +150°C Lead Temperature (soldering, 10s) .................................+300°C PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Input Supply Range VIN 2.7 4.5 V Input Undervoltage Threshold VUVLO VIN falling, 40mV hysteresis (typ) 2.2 2.4 2.6 V Input Quiescent Supply Current IIN + ISUPM VFB = VFBP = 1.5V, VFBN = -0.2V, VOUT = 5V, no load on DRVN and DRVP; CXN and CXP open 0.9 1.0 mA Output Quiescent Supply Current IQ(OUT) VFB = VFBP = 1.5V, VFBN = -0.2V, VOUT = 5V, no load on DRVN and DRVP; CXN and CXP open 2.5 4.0 mA Shutdown Supply Current V SHDN = 0, VSUPM = 5V 0.1 20 µA Operating Frequency fOSC I SHDN = 22 µA 0.65 1 1.2 MHz MAIN CHARGE PUMP Output Voltage Range VOUT 4.5 5.5 V Maximum Output Current IOUT(MAX) CX = 0.47 µF 200 mA FB Regulation Voltage VFB 1.237 1.248 1.263 V FB Input Bias Current IFB VFB = 1.25V -50 +50 nA Integrator Transconductance 530 µS FB Power-Ready Trip Level Rising edge 1.09 1.125 1.16 V FB Fault Trip Level Falling edge 1.100 V Main Soft-Start Period 4.096 / FOSC s NEGATIVE LOW-POWER CHARGE PUMP SUPN Input Supply Range VSUPN 2.7 13 V SUPN Quiescent Current ISUPN VFBN = -0.2V, no load on DRVN 0.6 0.8 mA SUPN Shutdown Current V SHDN = 0, VSUPN = 13V 0.1 10 µA FBN Regulation Voltage VFBN -50 0 +50 mV |
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