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MAX1757 Datasheet(PDF) 2 Page - Maxim Integrated Products |
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MAX1757 Datasheet(HTML) 2 Page - Maxim Integrated Products |
2 / 17 page Stand-Alone, Switch-Mode Li+ Battery Charger with Internal 14V Switch 2 _______________________________________________________________________________________ ABSOLUTE MAXIMUM RATINGS ELECTRICAL 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 = 10k Ω, 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. BATT, CS, DCIN, CSSP, CSSN, HSD to GND ........-0.3V to +15V CSSP to CSSN.......................................................-0.6V to +0.6V BST to GND ............................................................-0.3V to +21V BST to LX..................................................................-0.3V to +6V LX 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 +6V FASTCHG, FULLCHG, FAULT to GND ..................-0.3V to +30V CS to BATT Current ............................................................±3.5A PGND to GND .......................................................-0.3V to +0.3V VL Source Current...............................................................50mA Continuous Power Dissipation (TA = +70°C) 28-Pin SSOP (derate 9.5mW/°C above +70°C) ...........762mW 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 VBATT = 14V, done state Falling edge CELL = REF, VBATT = 12V, any charging state V SHDN = GND, VBATT =14V 6V < VDCIN < 14V Internal resistor between CS and BATT, 1.5A RMS operating See PWM Controller section VBST = VLX + 4.5V VLX = VHSD = VDCIN =14V, VSHDN = GND IREF = 0 to 1mA VLX = PGND, VHSD = VDCIN = 14V, V SHDN = GND VCSSN = VCSSP = VDCIN = 14V, VSHDN = GND 6V < VDCIN < 14V Rising edge 6V < VDCIN < 14V IVL = 0 to 15mA In dropout, fOSC / 4 6V < VDCIN < 14V Nondropout fOSC CONDITIONS µA 150 270 BATT, CS Input Current µA 280 540 µA 0.1 5 m Ω 110 170 RCS CS to BATT Current-Sensing Resistance Ω 12 LX to PGND On-Resistance m Ω 150 250 HSD to LX On-Resistance µA 0.1 10 LX Off-State Leakage µA 0.1 10 HSD Off-State Leakage µA 210 CSSN/CSSP Off-State Leakage % 97 98 LX Maximum Duty Cycle kHz 270 300 330 fOSC PWM Oscillator Frequency V 0.075 0.125 0.175 DCIN to BATT Dropout Threshold, DCIN Falling mA 57 DCIN Quiescent Supply Current mV 614 REF Load Regulation mV 26 REF Line Regulation V V 0.20 0.30 0.40 DCIN to BATT Dropout Threshold, DCIN Rising V 5.10 5.40 5.70 VL Output Voltage mV 44 65 VREF 4.179 4.20 4.221 REF Output Voltage UNITS MIN TYP MAX SYMBOL PARAMETER V 614 DCIN Input Voltage Range SUPPLY AND REFERENCE SWITCHING REGULATOR VL Output Load Regulation |
Similar Part No. - MAX1757 |
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Similar Description - MAX1757 |
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