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MAX1908 데이터시트(PDF) 3 Page - Maxim Integrated Products

부품명 MAX1908
상세설명  Low-Cost Multichemistry Battery Chargers
PDF  27 Pages
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제조업체  MAXIM [Maxim Integrated Products]
홈페이지  https://www.maximintegrated.com/en.html
Logo MAXIM - Maxim Integrated Products

MAX1908 데이터시트(HTML) 3 Page - Maxim Integrated Products

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Low-Cost Multichemistry Battery Chargers
_______________________________________________________________________________________
3
ELECTRICAL CHARACTERISTICS (continued)
(VDCIN = VCSSP = VCSSN = 18V, VBATT = VCSIP = VCSIN = 12V, VREFIN = 3V, VVCTL = VICTL = 0.75 x VREFIN, CELLS = float, 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
VDCIN = 5V, VREFIN = 3V
-1
+1
REFIN Input Bias Current
VREFIN = 5V
-1
+1
µA
ICHG Transconductance
GICHG
VCSIP - VCSIN = 45mV
2.7
3
3.3
µA/mV
VCSIP - VCSIN = 75mV
-6
+6
VCSIP - VCSIN = 45mV
-5
+5
ICHG Accuracy
VCSIP - VCSIN = 5mV
-40
+40
%
ICHG Output Current
VCSIP - VCSIN = 150mV, VICHG = 0
350
µA
ICHG Output Voltage
VCSIP - VCSIN = 150mV, ICHG = float
3.5
V
INPUT CURRENT REGULATION
CSSP-to-CSSN Full-Scale
Current-Sense Voltage
72
75
78
mV
VCLS = VREF
-4
+4
Input Current-Limit Accuracy
VCLS = VREF / 2
-7.5
+7.5
%
CSSP, CSSN Input Voltage
Range
8
28
V
VDCIN = 0
0.1
1
CSSP, CSSN Input Current
VCSSP = VCSSN = VDCIN > 8V
350
600
µA
CLS Input Range
1.6
REF
V
CLS Input Bias Current
VCLS = 2V
-1
+1
µA
IINP Transconductance
GIINP
VCSSP - VCSSN = 75mV
2.7
3
3.3
µA/mV
VCSSP - VCSSN = 75mV
-5
+5
IINP Accuracy
VCSSP - VCSSN = 37.5mV
-7.5
+7.5
%
IINP Output Current
VCSSP - VCSSN = 150mV, VIINP = 0
350
µA
IINP Output Voltage
VCSSP - VCSSN = 150mV,VIINP = float
3.5
V
SUPPLY AND LDO REGULATOR
DCIN Input Voltage Range
VDCIN
8
28
V
VDCIN falling
7
7.4
DCIN Undervoltage-Lockout Trip
Point
VDCIN rising
7.5
7.85
V
DCIN Quiescent Current
IDCIN
8.0V < VDCIN < 28V
3.2
6
mA
VBATT = 19V, VDCIN = 0
1
BATT Input Current
IBATT
VBATT = 2V to 19V, VDCIN = 19.3V
200
500
µA
LDO Output Voltage
8V < VDCIN < 28V, no load
5.25
5.4
5.55
V
LDO Load Regulation
0 < ILDO < 10mA
34
100
mV
LDO Undervoltage-Lockout Trip
Point
VDCIN = 8V
3.20
4
5.15
V
REFERENCE
REF Output Voltage
0 < IREF < 500µA
4.072
4.096
4.120
V



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