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MAX1870 Datasheet(PDF) 6 Page - Maxim Integrated Products |
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MAX1870 Datasheet(HTML) 6 Page - Maxim Integrated Products |
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6 / 32 page  Step-Up/Step-Down Li+ Battery Charger 6 _______________________________________________________________________________________ PARAMETER CONDITIONS MIN TYP MAX UNITS CHARGE-VOLTAGE REGULATION VCTL Range 0 3.6 V VVCTL = VLDO (2 cells) -0.8 +0.8 VVCTL = VLDO (3 cells) -0.8 +0.8 VVCTL = VLDO (4 cells) -0.8 +0.8 VVCTL = VREFIN (2 cells) -1.2 +1.2 VVCTL = VREFIN (3 cells) -1.2 +1.2 VVCTL = VREFIN (4 cells) -1.2 +1.2 VVCTL = VREFIN / 20 (2 cells) -1.4 +1.4 VVCTL = VREFIN / 20 (3 cells) -1.4 +1.4 Battery Regulation Voltage Accuracy VVCTL = VREFIN / 20 (4 cells) -1.4 +1.4 % VCTL Default Threshold VCTL rising 4.0 4.2 V CHARGE-CURRENT REGULATION ICTL Range 0 3.6 V VICTL = VREFIN 66 80 VICTL = VREFIN x 0.8 53 65 Quick-Charge-Current Accuracy VICTL = VREFIN x 0.583 38 48 mV BATT/CSIP/CSIN Input Voltage Range 0 19 V CSIP Input Current ICTL = REFIN 600 µA ICTL Power-Down-Mode Threshold Voltage REFIN / 100 REFIN / 32 V INPUT-CURRENT REGULATION CLS = REF 95 115 Charger-Input Current-Limit Accuracy (VCSSP - VCSSN) CSSS = CSSP CLS = REF x 0.845 79 97 mV CLS = REF 95 115 System-Input Current-Limit Accuracy (VCSSP - VCSSS) CSSN = CSSP CLS = REF x 0.845 79 97 mV CSSP/CSSS/CSSN Input Voltage Range 8 28 V CSSP Input Current VCSSP = VCSSN = VCSSS = VDCIN = 8V, 28V 1200 µA CLS Input Range VREF / 2 VREF V IINP Transconductance VCSSP - VCSSS = 102mV, CSSN = CSSP 2.5 3.1 µA/mV VCSSP - VCSSN = 200mV, VIINP = 0V 350 IINP Output Current VCSSP - VCSSS = 200mV, VIINP = 0V 350 µA VCSSP - VCSSN = 200mV, IINP float 3.5 IINP Output Voltage VCSSP - VCSSS = 200mV, IINP float 3.5 V ELECTRICAL CHARACTERISTICS (Circuit of Figure 2, VDCIN = VCSSP = VCSSN = VCSSS = VVHP = 18V, VBATT = VCSIP = VCSIN = VBLKP = 12V, VREFIN = 3.0V, VICTL = 0.75 x VREFIN, VCTL = LDO, CELLS = FLOAT, GND = PGND = 0, VDLOV = 5.4V, TA = -40°C to +85°C.) (Note 1) |
Similar Part No. - MAX1870 |
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Similar Description - MAX1870 |
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