MAX1870A データシートの表示（PDF） - Maxim Integrated
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MAX1870A Datasheet PDF : 32 Pages
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Step-Up/Step-Down
Li+ Battery Charger
ABSOLUTE MAXIMUM RATINGS
DCIN, CSSP, CSSS, CSSN,
VHP, VHN, DHI to GND ......................................-0.3V to +30V
VHP, DHI to VHN .....................................................-0.3V to +6V
BATT, CSIP, CSIN, BLKP to GND ..........................-0.3V to +20V
CSIP to CSIN, CSSP to CSSN,
CSSP to CSSS, PGND to GND ..........................-0.3V to +0.3V
CCI, CCS, CCV, REF, IINP to GND ..........-0.3V to (VLDO + 0.3V)
DBST to GND..........................................-0.3V to (VDLOV + 0.3V)
DLOV, VCTL, ICTL, REFIN, CELLS,
CLS, LDO, ASNS, SHDN to GND .........................-0.3V to +6V
LDO Current........................................................................50mA
Continuous Power Dissipation (TA = +70°C)
32-Pin Thin QFN 5mm x 5mm
(derate 21mW/°C above +70°C) ......................................1.7W
Operating Temperature Range
MAX1870AETJ .................................................-40°C to +85°C
Storage Temperature Range .............................-60°C to +150°C
Lead Temperature (soldering, 10s) ................................ +300°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.
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 = 0°C to +85°C, unless otherwise noted. Typical
values are at TA = +25°C.)
PARAMETER
CONDITIONS
CHARGE-VOLTAGE REGULATION
VCTL Range
VVCTL = VLDO (2 cells)
VVCTL = VLDO (3 cells)
VVCTL = VLDO (4 cells)
Battery Regulation Voltage
Accuracy
VVCTL = VREFIN (2 cells)
VVCTL = VREFIN (3 cells)
VVCTL = VREFIN (4 cells)
VVCTL = VREFIN / 20 (2 cells)
VVCTL = VREFIN / 20 (3 cells)
VCTL Default Threshold
VVCTL = VREFIN / 20 (4 cells)
VCTL rising
VCTL Input Bias Current
0 < VVCTL < VREFIN
DCIN = 0, VREFIN = VVCTL = 3.6V
VCTL = DCIN = 0, VREFIN = 3.6V
CHARGE-CURRENT REGULATION
ICTL Range
VICTL = VREFIN
Quick-Charge-Current Accuracy VICTL = VREFIN x 0.8
VICTL = VREFIN x 0.583
Trickle-Charge-Current Accuracy VICTL = VREFIN x 0.0625
BATT/CSIP/CSIN Input Voltage
Range
MIN TYP MAX UNITS
0
3.6
V
-0.5
+0.5
-0.5
+0.5
-0.5
+0.5
-0.8
+0.8
-0.8
+0.8
%
-0.8
+0.8
-1.2
+1.2
-1.2
+1.2
-1.2
+1.2
4.0
4.1
4.2
V
-1
+1
-1
+1
µA
-1
+1
0
3.6
V
67
73
79
54
59
64
mV
39
43
47
3.0
4.5
6.0
mV
0
19
V
CSIP Input Current
DCIN = 0
ICTL = 0
ICTL = REFIN
0.1
2
0.1
2
µA
350 600
2 _______________________________________________________________________________________
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