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MAX1772 Datasheet(PDF) 5 Page - Maxim Integrated Products |
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MAX1772 Datasheet(HTML) 5 Page - Maxim Integrated Products |
5 / 20 page Low-Cost, Multichemistry Battery- Charger Building Block _______________________________________________________________________________________ 5 ELECTRICAL CHARACTERISTICS (VDCIN = VCSSP = VCSSN = 18V, VBATT = VCSIP = VCSIN = 12V, VREFIN = 3.0V, VVCTL = VICTL = 0.75 VREFIN, VCELLS = 2.0V, VACIN = 0V, CLS = REF, VBST - VLX = 4.5V, VGND = VPGND = 0V, CLDO = 1µF, LDO = DLOV, CREF = 1µF; pins CCI, CCS, and CCV are compensated per Figure 1a; TA = -40°C to +85°C, unless otherwise noted.) (Note 1) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS SUPPLY AND LDO REGULATOR DCIN Input Voltage Range VDCIN 8.0 28.0 V VDCIN falling 7 DCIN Undervoltage Lockout Trip Point VDCIN rising 7.85 V DCIN Quiescent Current IDCIN 8.0V < VDCIN < 28V 6 mA LDO Output Voltage 8.0V < VDCIN < 28V, no load 5.25 5.65 V TRIP POINTS BATT POWER_FAIL Threshold VCSSP falling 50 150 mV BATT POWER_FAIL Threshold Hysteresis 100 300 mV ACIN Threshold VACIN rising 2.007 2.089 V ACIN Threshold Hysteresis 0.5% of REF 10 30 mV ACIN Input Bias Current VACIN = 2.048V -1 +1 µA CLS Input Range 1.6 REF V CLS Input Bias Current VCLS = 2.0V -1 +1 µA SWITCHING REGULATOR Minimum Off-Time VBATT = 16.8V 1 1.5 µs Maximum On-Time 5 15 ms Oscillator Frequency fOSC (Note 1) 400 kHz DHI Maximum Duty Cycle 99 % VBATT = 19V, VDCIN = 0V 5 BATT Input Current IBATT VBATT = 2V to 19V, VDCIN > VBATT + 0.3V 500 µA VDCIN = 0V 5 CSIP/CSIN Input Current VCSIP = VCSIN = 12V 800 µA VDCIN = 0V 0.3 CSSP/CSSN Input Current VCSSP = VCSSN = VDCIN > 8.0V 800 µA BATT/CSIP/CSIN Input Voltage Range 0 19 V CSIP to CSIN Full-Scale Current-Sense Voltage VBATT = 12V 189 219 mV CSSP to CSSN Full-Scale Current-Sense Voltage 189 219 mV CURRENT AND VOLTAGE SETTING ICTL = REFIN (see Equation 2) -8 +8 Charging Current Accuracy ICTL = REFIN/32 (see Equation 2) -55 +55 % VVCTL = VICTL = VREFIN = 3V -1 +1 ICTL, VCTL, REFIN Input Bias Current VDCIN = 0V, VVCTL = VICTL = VREFIN = 5V -1 +1 µA |
Similar Part No. - MAX1772 |
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Similar Description - MAX1772 |
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