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MAX782C/D Datasheet(PDF) 3 Page - Maxim Integrated Products |
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MAX782C/D Datasheet(HTML) 3 Page - Maxim Integrated Products |
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3 / 32 page  Triple-Output Power-Supply Controller for Notebook Computers _______________________________________________________________________________________ 3 PARAMETER CONDITIONS MIN TYP MAX UNITS D1-D3 Trip Voltage Falling edge, hysteresis = 1% Q1-Q3 Output Low Voltage VL Output Voltage REF Fault Lockout Voltage Falling edge 2.4 3.2 ON5 = ON3 = 0V, 5.5V < V+ < 30V, 0mA < IL < 25mA V REF Output Voltage No external load (Note 2) 3.24 3.36 V 4.5 5.5 REF Load Regulation 0mA < IL < 5mA 30 75 mV V+ Standby Current 70 110 µA 1.61 1.69 V D1-D3 Input Current D1 = D2 = D3 = 0V to 5V V D1 = D2 = D3 = DA0 = DA1 = DB0 = DB1 = 0V, FB5 = CS5 = 5.25V, FB3 = CS3 = 3.5V 6.0 8.6 ±100 mW V+ Off Current nA FB5 = CS5 = 5.25V, VL switched over to FB5 30 60 µA Q1-Q3 Source Current VH = 15V, Q1-Q3 forced to 2.5V 12 20 30 µA Q1-Q3 Sink Current VL Fault Lockout Voltage VH = 15V, Q1-Q3 forced to 2.5V 200 500 1000 µA Q1-Q3 Output High Voltage ISOURCE = 5µA, VH = 3V VH-0.5 V ISINK = 20µA, VH = 3V 0.4 V Quiescent VH Current VH = 18V, D1 = D2 = D3 = 5V, no external load Falling edge, hysteresis = 1% 3.6 4.2 V 610 µA VL/FB5 Switchover Voltage Rising edge of FB5, hysteresis = 1% 4.2 4.7 V Note 1: Output current is further limited by maximum allowable package power dissipation. Note 2: Since the reference uses VL as its supply, V+ line regulation error is insignificant. ELECTRICAL CHARACTERISTICS (continued) (V+ = 15V, GND = PGND = 0V, IVL = IREF = 0mA, ON3 = ON5 = 5V, other digital input levels are 0V or +5V, TA = TMIN to TMAX, unless otherwise noted.) Quiescent Power Consumption (both PWM controllers on) D1 = D2 = D3 = ON3 = ON5 = DA0 = DA1 = DB0 = DB1 = 0V, V+ = 30V SYNC Low Pulse Width 200 ns SYNC High Pulse Width 200 ns Oscillator Frequency SYNC = 0V or 5V 170 200 230 kHz SYNC = 3.3V 270 300 330 Maximum Duty Cycle SYNC = 0V or 5V 92 95 % SYNC = 3.3V 89 92 Oscillator SYNC Range 240 350 kHz SYNC Rise/Fall Time Not tested 200 ns Input Low Voltage ON3, ON5, DA0, DA1, DB0, DB1, SYNC 0.8 V ON3, ON5, DA0, DA1, DB0, DB1 2.4 Input Current ON3, ON5, DA0, DA1, DB0, DB1, VIN = 0V or 5V ±1 µA DL3/DL5 Sink/Source Current DL3, DL5 forced to 2V 1 A DL3/DL5 On Resistance High or low 7 Ω DH3/DH5 On Resistance High or low, BST3-LX3 = BST5-LX5 = 4.5V 7 Ω Input High Voltage SYNC VL-0.5 V DH3/DH5 Sink/Source Current BST3-LX3 = BST5-LX5 = 4.5V, DH3, DH5 forced to 2V 1 A INTERNAL REGULATOR AND REFERENCE COMPARATORS OSCILLATOR AND INPUTS/OUTPUTS |
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