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MAX188 Datasheet(PDF) 3 Page - Maxim Integrated Products |
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MAX188 Datasheet(HTML) 3 Page - Maxim Integrated Products |
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3 / 32 page  Triple-Output TFT LCD Power Supply with Fault Protection _______________________________________________________________________________________ 3 ELECTRICAL CHARACTERISTICS (continued) (VIN = 3V, SHDN = IN, CREF = 0.22µF, PGND = GND, TA = 0°C to +85°C. Typical values are at TA = +25°C, unless otherwise noted.) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS FBP Line Regulation IDRVP = 0.2mA, VIN = 2.7V to 5.5V 1 mV Bandwidth (Note 3) 200 kHz DRVP Sink Current IDRVP VFBP = 1.1V, VDRVP = 10V 5 mA DRVP Off-Leakage Current VFBP = 1.1V, VDRVP = 28V 0.1 10 µA NEGATIVE LINEAR-REGULATOR CONTROLLER FBN Regulation Voltage VFBN IDRVN = 0.2mA 95 125 155 mV FBN Fault Trip Level VFBN rising 325 400 475 mV FBN Input Bias Current IFBN VFBN = 0V -50 +50 nA FBN Effective Transconductance VDRVN = -10V, IDRVN = 0.1mA to 2mA 75 mS FBN Line Regulation IDRVN = 0.2mA, VIN = 2.7V to 5.5V 1 mV Bandwidth (Note 2) 200 kHz DRVN Sink Current IDRVN VFBN = 200mV, VDRVN = -10V 5 mA DRVN Off-Leakage Current VFBP = -0.1V, VDRVN = -20V 0.1 10 µA LOGIC SIGNAL (SHDN) Input Low Voltage 100mV typical hysteresis, VIN = 2.7V to 5.5V 0.4 V Input High Voltage VIN = 2.7V to 5.5V 1.6 V Input Current ISHDN 0.01 1µA LOGIC SIGNAL (FREQ) Input Low Voltage 0.15 x VIN typical hysteresis 0.3 x VIN V Input High Voltage 0.7 x VIN V Input Current IFREQ 0.01 1µA OVERCURRENT COMPARATOR Input Offset Voltage -5 +5 mV Input Bias Current IOCN, IOCP VOCN = VOCP = VIN -50 +50 nA OCN, OCP Input Common-Mode Range 1.5 0.8 x VIN V FAULT TIMER AND GATE DRIVER VFREQ = 0V, 32768/fOSC 64 Fault Timer Period tFAULT VFREQ = VIN, 65536/fOSC 64 ms GATE Output Sink Current During Slew IGATE VGATE = 1.5V, during turn-on transition 6 12 18 µA GATE Output Pulldown Resistance VGATE < 0.5V 200 Ω GATE Output Pullup Resistance 200 Ω |
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