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MAX1645B Datasheet(PDF) 5 Page - Maxim Integrated Products |
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MAX1645B Datasheet(HTML) 5 Page - Maxim Integrated Products |
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5 / 32 page  Advanced Chemistry-Independent, Level 2 Battery Charger with Input Current Limiting _______________________________________________________________________________________ 5 ELECTRICAL CHARACTERISTICS (continued) (Circuit of Figure 1, VDD = +3.3V, VBATT = +16.8V, VDCIN = +18V, TA = 0°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.) ELECTRICAL CHARACTERISTICS (Circuit of Figure 1, VDD = +3.3V, VBATT = +16.8V, VDCIN = +18V, TA = -40°C to +85°C, unless otherwise noted. Guaranteed by design.) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS SDA Output Data Valid from SCL tDV 1µs Maximum Charge Period Without a ChargingVoltage() or Charging Current() Loaded tWDT 140 175 210 s PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS GENERAL SPECIFICATIONS DCIN Typical Operating Range VDCIN 828 V DCIN Supply Current IDCIN 8V < VDCIN < 28V 6 mA DCIN Supply Current Charging Inhibited 8V < VDCIN < 28V 2 mA DCIN rising 7.85 DCIN Undervoltage Threshold When AC_PRESENT switches DCIN falling 7 V LDO Output Voltage VLDO 8V < VDCIN < 28V, 0 < ILDO < 15mA 5.15 5.65 V VDD Input Voltage Range 8V < VDCIN < 28V (Note 1) 2.80 5.65 V VDD rising 2.8 VDD Undervoltage Threshold When the SMB responds to commands VDD falling 2.1 V VDD Quiescent Current IDD 0 < VDCIN < 6V, VDD = 5V, VSCL = 5V, VSDA = 5V 150 µA REF Output Voltage VREF 0 < IREF < 200µA 4.035 4.157 V BATT Undervoltage Threshold When ICHARGE drops to 128mA (Note 2) 2.4 2.8 V PDS Charging Source Switch Turn-Off Threshold VPDS-OFF VCVS referred to VBATT, VCVS falling 50 150 mV PDS Charging Source Switch Threshold Hysteresis VPDS-HYS VCVS referred to VBATT 100 300 mV PDS Output Low Voltage, PDS Below CSSP IPDS = 0 8 12 V PDS Turn-On Current PDS = CSSP 100 300 µA PDS Turn-Off Current VPDS = VCSSP - 2V, VDCIN = 16V 10 mA PDL Load Switch Turn-Off Threshold VPDL-OFF VCVS referred to VBATT, VCVS rising -150 -50 mV PDL Load Switch Threshold Hysteresis VPDL-HYS VCVS referred to VBATT 100 300 mV PDL Turn-Off Current VCSSN - VPDL = 1V 6 mA |
Similar Part No. - MAX1645B |
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Similar Description - MAX1645B |
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