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| MAX1660 Datasheet, PDF (3/20 Pages) Maxim Integrated Products – Digitally Controlled Fuel-Gauge Interface | |||
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Digitally Controlled
Fuel-Gauge Interface
ELECTRICAL CHARACTERISTICS (continued)
(V SHDN = VBATT = 12V, VSCL = VSDA = 3.6V, CREF = 10nF, CVL = 0.1µF, TA = 0°C to +85°C, unless otherwise noted. Typical values
are at TA = +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
SCL, SDA, INT, RST Leakage
Current
Output forced to 5V
0.01
1
µA
SHDN Input Bias Current
RST Active Timeout Period
ISHDN
SHDN forced to 3.6V
SHDN forced to 28V
0.7
3.0
µA
20
100
25
ms
RST Output Voltage
RST Threshold Voltage
VRST
VTH1,
VTH2
VVL = 1V, ISINK = 50µA
VVL = 3V, ISINK = 1.2mA
VTH2, VL falling
VTH1, VL rising
0.3
V
0.3
1.0
1.7
2.2
V
2.75 2.90 3.05
ELECTRICAL CHARACTERISTICS
(V SHDN = VBATT = 12V, VSCL = VSDA = 3.6V, CREF = 10nF, CVL = 0.1µF, TA = -40°C to +85°C, unless otherwise noted.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
SUPPLY AND REFERENCES
BATT Input Voltage Range
VBATT
4
28
V
V SHDN = 3.3V, SOFTSHDN = 0, IVL = 0
135
BATT Supply Current
IBATT
V SHDN = 3.3V, SOFTSHDN = 1, IVL = 0
V SHDN ⤠0.4V
30
µA
1
VL Output Voltage
VVL
SOFTSHDN = 0, 0 ⤠IVL ⤠5mA
SOFTSHDN = 1, 0 ⤠IVL ⤠5mA
3.1
3.4
V
3.1
3.6
REF Output Voltage
REF Load Regulation
VREF
IREF = 0
0 ⤠IREF ⤠200µA
1.96
2.04
V
50 µV/µA
FUEL GAUGE
Discharge Coulomb-Counter
Accumulation Rate
Charge Coulomb-Counter
Accumulation Rate
VCS = 0
VCS = -120mV
VCS = 0
VCS = 120mV
0
0
49,250
12 counts/
sec
12 counts/
50,750 sec
OVERCURRENT COMPARATOR
OCI, ODI Input Offset Voltage
-10
10
mV
OCI, ODI Input Offset Current
(Note 1)
-1
1
µA
ODO Sink Current
ODO Off-Leakage Current
OCO Sink Current
OCO Off-Leakage Current
VODO = 0.4V
VODO = 28V
VODO = 0.4V
VODO = 28V
1
mA
1
µA
1
mA
1
µA
*Patent pending
_______________________________________________________________________________________ 3
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