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MAX1757 Datasheet(数据表) 2 Page - Maxim Integrated Products
部件型号 &MAX1757
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制造商 &MAXIM&[Maxim Integrated Products]
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Stand-Alone, Switch-ModeLi+ Battery Charger with Internal 14V Switch2_______________________________________________________________________________________ABSOLUTE MAXIMUM RATINGSELECTRICAL CHARACTERISTICS(Circuit of Figure 1, VDCIN = VHSD = VCSSP = VCSSN = 12V, V SHDN = VVL, VCELL = GND, VBATT = VCS = 4.2V, VVADJ = VREF/2,VISETIN = VISETOUT = VREF, RTHM = 10kOhm, 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 functionaloperation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure toabsolute maximum rating conditions for extended periods may affect device reliability.BATT, CS, DCIN, CSSP, CSSN, HSD to GND ........-0.3V to +15VCSSP to CSSN.......................................................-0.6V to +0.6VBST to GND ............................................................-0.3V to +21VBST to LX..................................................................-0.3V to +6VLX to PGND ..............................................-0.6V to (VHSD + 0.3V)VL, SHDN, ISETIN, ISETOUT, REF, VADJ, CELL, TIMER1,TIMER2, CCI, CCS, CCV, THM to GND ................-0.3V to +6VFASTCHG, FULLCHG, FAULT to GND ..................-0.3V to +30VCS to BATT Current ............................................................±3.5APGND to GND .......................................................-0.3V to +0.3VVL Source Current...............................................................50mAContinuous Power Dissipation (TA = +70°C)28-Pin SSOP (derate 9.5mW/°C above +70°C) ...........762mWOperating Temperature Range ...........................-40°C to +85°CJunction Temperature ......................................................+150°CStorage Temperature Range .............................-65°C to +150°CLead Temperature (soldering, 10s) .................................+300°CVBATT = 14V, done stateFalling edgeCELL = REF, VBATT = 12V, any charging stateV SHDN = GND, VBATT =14V6V & VDCIN & 14VInternal resistor between CS and BATT,1.5A RMS operatingSee PWM Controller sectionVBST = VLX + 4.5VVLX = VHSD = VDCIN =14V, VSHDN = GNDIREF = 0 to 1mAVLX = PGND, VHSD = VDCIN = 14V,V SHDN = GNDVCSSN = VCSSP = VDCIN = 14V, VSHDN = GND6V & VDCIN & 14VRising edge6V & VDCIN & 14VIVL = 0 to 15mAIn dropout, fOSC / 46V & VDCIN & 14VNondropout fOSCCONDITIONSuA150270BATT, CS Input CurrentuA280540uA0.15mOhm110170RCSCS to BATT Current-SensingResistanceOhm12LX to PGND On-ResistancemOhm150250HSD to LX On-ResistanceuA0.110LX Off-State LeakageuA0.110HSD Off-State LeakageuA210CSSN/CSSP Off-State Leakage%9798LX Maximum Duty CyclekHz270300330fOSCPWM Oscillator FrequencyV0.0750.1250.175DCIN to BATT DropoutThreshold, DCIN FallingmA57DCIN Quiescent Supply CurrentmV614REF Load RegulationmV26REF Line RegulationVV0.200.300.40DCIN to BATT DropoutThreshold, DCIN RisingV5.105.405.70VL Output VoltagemV4465VREF4.1794.204.221REF Output VoltageUNITSMINTYPMAXSYMBOLPARAMETERV614DCIN Input Voltage RangeSUPPLY AND REFERENCESWITCHING REGULATORVL Output Load Regulation
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