MAX1660 Datasheet, PDF (2/20 Pages) Maxim Integrated Products – Digitally Controlled Fuel-Gauge Interface

Digitally Controlled
Fuel-Gauge Interface
ABSOLUTE MAXIMUM RATINGS
BATT, ODO, OCO, SHDN to GND .........................-0.3V to +30V
SCL, SDA, INT, RST to GND ....................................-0.3V to +6V
REF, ODI, OCI to GND..................................-0.3V to (VL + 0.3V)
VL to GND ................................................................-0.3V to +6V
CS to GND...................................................................-2V to +6V
AGND to GND .............................................................-1V to +1V
Continuous Power Dissipation (T_A = +70°C)
16-Pin QSOP (derate 8.3mW/°C above +70°C).............667mW
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range .............................-65°C to +165°C
Lead Temperature (soldering, 10sec) .............................+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
(V _SHDN = V_BATT = 12V, V_SCL = V_SDA = 3.6V, C_REF = 10nF, C_VL = 0.1µF, T_A = 0°C to +85°C, unless otherwise noted. Typical values
are at T_A = +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
SUPPLY AND REFERENCES
BATT Input Voltage Range
V_BATT
4
28
V
BATT Supply Current
I_BATT
V _SHDN = 3.3V, SOFTSHDN = 0, I_VL = 0
V _SHDN = 3.3V, SOFTSHDN = 1, I_VL = 0
V _SHDN ≤ 0.4V
80
135
15
30
µA
0.02
1
VL Output Voltage
V_VL
SOFTSHDN = 0, 0 ≤ I_VL ≤ 5mA
SOFTSHDN = 1, 0 ≤ I_VL ≤ 5mA
3.1
3.25
3.4
V
3.1
3.25
3.6
REF Output Voltage
REF Load Regulation
FUEL GAUGE
V_REF
I_REF = 0
0 ≤ I_REF ≤ 200µA
1.96 2.00 2.04
V
10
50 µV/µA
CS to AGND Input Resistance
100
kΩ
Discharge Coulomb-Counter
Accumulation Rate
V_CS = 0
V_CS = -120mV
0
2
12 _counts/
49,500 50,000 50,500 ^sec
Charge Coulomb-Counter
Accumulation Rate
V_CS = 0
V_CS = 120mV
0
2
12 _counts/
49,500 50,000 50,500 ^sec
OVERCURRENT COMPARATOR
OCI, ODI Input Offset Voltage
-7
0
7
mV
OCI, ODI Input Offset Current
(Note 1)
-1
0.01
1
µA
Propagation Delay
1
µs
ODO Sink Current
ODO Off-Leakage Current
OCO Sink Current
OCO Off-Leakage Current
INTERFACE-LOGIC LEVELS
V_ODO = 0.4V
V_ODO = 28V
V_OCO = 0.4V
V_OCO = 28V
1
2.5
mA
0.01
1
µA
1
2.5
mA
0.01
1
µA
Input High Voltage
Input Low Voltage
V_IH
SHDN, SCL, SDA
SCL, SDA
V_IL
SHDN
2.2
V
0.8
V
0.6
SDA Output Low Sink Current
INT Output Low Sink Current
V_OL
V_SDA = 0.6V
V_OL
V _INT = 0.4V
6
mA
2
mA
*Patent pending
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