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MAX8724ETI+ Datasheet(PDF) 6 Page - Maxim Integrated Products |
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MAX8724ETI+ Datasheet(HTML) 6 Page - Maxim Integrated Products |
6 / 30 page Low-Cost Multichemistry Battery Chargers 6 _______________________________________________________________________________________ ELECTRICAL CHARACTERISTICS (continued) (VDCIN = VCSSP = VCSSN = 18V, VBATT = VCSIP = VCSIN = 12V, VREFIN = 3V, VVCTL = VICTL = 0.75 x VREFIN, CELLS = open, CLS = REF, VBST - VLX = 4.5V, ACIN = GND = PGND = 0, CLDO = 1µF, LDO = DLOV, CREF = 1µF; CCI, CCS, and CCV are compensated per Figure 1a; TA = 0°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS ERROR AMPLIFIERS GMV Amplifier Transconductance GMV VVCTL = VLDO, VBATT = 16.8V, CELLS = VREFIN 0.0625 0.125 0.2500 µA/mV GMI Amplifier Transconductance GMI VICTL = VREFIN, VCSIP - VCSIN = 75mV 0.5 1 2.0 µA/mV GMS Amplifier Transconductance GMS VCLS = VREF, VCSSP - VCSSN = 75mV 0.5 1 2.0 µA/mV CCI, CCS, CCV Clamp Voltage 0.25V < VCCV,CCS,CCI < 2V 150 300 600 mV LOGIC LEVELS CELLS Input Low Voltage 0.4 V CELLS Input Open Voltage CELLS = open (VREFIN /2) - 0.2V VREFIN/ 2 (VREFIN /2) + 0.2V V CELLS Input High Voltage VREFIN - 0.4V V CELLS Input Bias Current CELLS = 0V or VREFIN -2 +2 µA ACOK AND SHDN ACOK Input Voltage Range 0 28 V ACOK Sink Current VACOK = 0.4V, VACIN = 3V 1 mA ACOK Leakage Current VACOK = 28V, VACIN = 0V 1 µA SHDN Input Voltage Range 0 LDO V VSHDN = 0V OR VLDO -1 +1 SHDN Input Bias Current VSHDN = 0V OR VSHDN = 5V -1 +1 µA SHDN Threshold VSHDN falling 22 23.5 25 % of VREFIN SHDN Threshold Hysteresis 1 % of VREFIN |
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