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MAX1908 Datasheet(PDF) 8 Page - Maxim Integrated Products

Part # MAX1908
Description  Low-Cost Multichemistry Battery Chargers
PDF  30 Pages
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Manufacturer  MAXIM [Maxim Integrated Products]
Direct Link  https://www.maximintegrated.com/en.html
Logo MAXIM - Maxim Integrated Products

MAX1908 Datasheet(HTML) 8 Page - Maxim Integrated Products

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Low-Cost Multichemistry Battery Chargers
8
_______________________________________________________________________________________
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 = -40°C to +85°C, unless otherwise noted.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
VCSIP - VCSIN = 75mV
-7.5
+7.5
VCSIP - VCSIN = 45mV
-7.5
+7.5
ICHG Accuracy
VCSIP - VCSIN = 5mV
-40
+40
%
INPUT-CURRENT REGULATION
CSSP-to-CSSN Full-Scale
Current-Sense Voltage
71.25
78.75
mV
VCLS = VREF
-5
+5
VCLS = VREF/2
-7.5
+7.5
Input Current-Limit Accuracy
VCLS = 1.1V (MAX8765/MAX8765A only)
-10
+10
%
Input Current-Limit Gain Error
(MAX8765/MAX8765A Only)
-2
+2
%
Input Current-Limit Offset
(MAX8765/MAX8765A Only)
-2
+2
mV
CSSP, CSSN Input Voltage
Range
8
28
V
VDCIN = 0V
1
CSSP, CSSN Input Current
(MAX1908/MAX8724 Only)
VCSSP = VCSSN = VDCIN > 8V
600
µA
VDCIN = 0V
1
CSSP Input Current
(MAX8765/MAX8765A Only)
VCSSP = VCSSN = 28V
VDCIN = 28V
650
µA
VDCIN = 0V
1
CSSN Input Current
(MAX8765/MAX8765A Only)
VCSSP = VCSSN = 28V
VDCIN = 28V
1
µA
CLS Input Range
(MAX1908/MAX8724 Only)
1.6
REF
V
CLS Input Range
(MAX8765/MAX8765A Only)
1.1
REF
V
IINP Transconductance
(MAX1908/MAX8724 Only)
GIINP
VCSSP - VCSSN = 75mV
2.7
3.3
µA/mV
IINP Transconductance
(MAX8765/MAX8765A Only)
GIINP
VCSSP - VCCSN = 75mV
2.785
3.225
µA/mV
IINP Transconductance Error
(MAX8765/MAX8765A Only)
-7.5
+7.5
%
IINP Transconductance Offset
(MAX8765/MAX8765A Only)
-12
+12
µA
VCSSP - VCSSN = 75mV
-7.5
+7.5
IINP Accuracy
VCSSP - VCSSN = 37.5mV
-7.5
+7.5
%



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