MAX17058G+T10 ,1-Cell/2-Cell Li+ ModelGauge ICsFeatures and BenefitsThe MAX17058/MAX17059 ICs are tiny fuel gauges S MAX17058: 1 Cell, MAX17059: 2 ..
MAX1705EEE ,1- to 3-Cell / High-Current / Low-Noise / Step-Up DC-DC Converters with Linear RegulatorELECTRICAL CHARACTERISTICS(V = V = V = 3.6V, CLK/SEL = FB = LBN = LBO = ONA = ONB = TRACK = GND, RE ..
MAX1705EEE ,1- to 3-Cell / High-Current / Low-Noise / Step-Up DC-DC Converters with Linear RegulatorApplications __________Typical Operating CircuitDigital Cordless Phones PCS PhonesPersonal Communic ..
MAX1705EEE ,1- to 3-Cell / High-Current / Low-Noise / Step-Up DC-DC Converters with Linear Regulatorapplications. They use a syn-chronous rectifier pulse-width-modulation (PWM) boost' Step-Up Output ..
MAX1705EEE ,1- to 3-Cell / High-Current / Low-Noise / Step-Up DC-DC Converters with Linear RegulatorGeneral Description ________
MAX1705EEE+ ,1 to 3 Cell, High Current, Low-Noise, Step-Up DC-DC Converters with Linear RegulatorApplications __________Typical Operating CircuitDigital Cordless Phones PCS PhonesPersonal Communic ..
MAX4524CUB+ ,Low-Voltage, Single-Supply Multiplexer and SwitchELECTRICAL CHARACTERISTICS—Single +5V Supply(V+ = 4.5V to 5.5V, GND = 0V, V = 2.4V, V = 0.8V, T = T ..
MAX4524CUB+T ,Low-Voltage, Single-Supply Multiplexer and SwitchELECTRICAL CHARACTERISTICS—Single +5V Supply(V+ = 4.5V to 5.5V, GND = 0V, V = 2.4V, V = 0.8V, T = T ..
MAX4524CUB-T ,Low-Voltage, Single-Supply Multiplexer and SwitchApplicationsMAX4524EUB -40°C to +85°C 10 µMAX —Battery-Operated Equipment 10 TDFN-EP**MAX4524ETB -4 ..
MAX4524EUB ,Low-Voltage / Single-Supply Multiplexer and SwitchMAX4524/MAX452519-1332; Rev 0; 1/98Low-Voltage, Single-Supply Multiplexer and Switch ______________ ..
MAX4524EUB ,Low-Voltage / Single-Supply Multiplexer and SwitchELECTRICAL CHARACTERISTICS—Single +5V Supply(V+ = +4.5V to +5.5V, GND = 0V, V = 2.4V, V = 0.8V, T = ..
MAX4524EUB ,Low-Voltage / Single-Supply Multiplexer and SwitchELECTRICAL CHARACTERISTICS—Single +5V Supply(V+ = +4.5V to +5.5V, GND = 0V, V = 2.4V, V = 0.8V, T = ..
MAX17058G+T10
1-Cell/2-Cell Li+ ModelGauge ICs
MAX17058/MAX17059
1-Cell/2-Cell Li+ ModelGauge ICs
Simplified Operating Circuit
General Description
The MAX17058/MAX17059 ICs are tiny fuel gauges
for lithium-ion (Li+) batteries in handheld and portable
equipment. The MAX17058 operates with a single Li+
cell and the MAX17059 with two Li+ cells in series.
The ICs use the sophisticated Li+ battery-modeling
algorithm ModelGaugeK to track the battery relative
state-of-charge (SOC) continuously over a widely varying
charge/discharge conditions. The ModelGauge algo-
rithm eliminates current-sense resistor and battery-learn
cycles required by other fuel gauges. Temperature
compensation is implemented using the system micro-
controller.
On battery insertion, the ICs debounce initial voltage
measurements to improve the initial SOC estimate,
allowing them to be located on system side. SOC and
voltage information is accessed using the I2C interface.
The ICs are available in a tiny 0.9mm x 1.7mm, 8-bump
wafer-level package (WLP) or a 2mm x 2mm, 8-pin TDFN
package.
Applications
Wireless Handsets
Smartphones/PDAs
Tablets and Handheld Computers
Portable Game Players
e-Readers
Digital Still and Video Cameras
Portable Medical Equipment
Features and Benefits
S MAX17058: 1 Cell, MAX17059: 2 Cells
S Precision ±7.5mV/Cell Voltage Measurement
S ModelGauge Algorithm Provides Accurate State-of-Charge Compensates for Temperature/Load Variation Does Not Accumulate Errors, Unlike Coulomb
Counters Eliminates Learning Eliminates Current-Sense Resistor
S Low Quiescent Current: 23µA
S Battery-Insertion Debounce Best of 16 Samples Estimates Initial SOC
S Programmable Reset for Battery Swap 2.28V to 3.48V Range
S Low SOC Alert Indicator
S I2C Interface
Ordering Information appears at end of data sheet.
EVALUATION KIT AVAILABLEONLY ONE
EXTERNAL
COMPONENT
VDDALRT
SDA
SCL
CELL
QSTRT
CTG
GND
SYSTEMMAX17058
MAX17058/MAX17059
1-Cell/2-Cell Li+ ModelGauge ICs
CELL to GND .........................................................-0.3V to +12V
All Pins (excluding CELL) to GND ..........................-0.3V to +6V
Continuous Sink Current, SDA, ALRT ................................20mA
Operating Temperature Range ..........................-40NC to +85NC
Storage Temperature Range ............................-55NC to +125NC
Lead Temperature (TDFN only) (soldering, 10s) ...........+300NC
Soldering Temperature (reflow) ......................................+260NC
ABSOLUTE MAXIMUM RATINGS
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional opera-
tion 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
(2.5V < VDD < 4.5V, -20NC < TA < +70NC, unless otherwise noted. Typical values are at TA = +25NC.) (Note 1)
ELECTRICAL CHARACTERISTICS (I2C INTERFACE)
(2.5V < VDD < 4.5V, -20NC < TA < +70NC, unless otherwise noted.) (Note 1)
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS
Supply VoltageVDD(Note 2)2.54.5V
Fuel-Gauge SOC Reset
(VRESET Register)VRSTConfiguration range, in 40mV steps2.283.48V
Trimmed at 3V2.853.03.15V
Data I/O PinsSCL, SDA,
ALRT(Note 2)-0.3+5.5V
Supply CurrentIDD0Sleep mode, TA < +50NC0.52FAIDD1Active mode2340
Time Base AccuracytERRActive mode (Note 3)-3.5Q1+3.5%
ADC Sample PeriodActive mode250ms
Voltage ErrorVERRVCELL = 3.6V, TA = +25NC (Note 4)-7.5+7.5mV/cell-20NC < TA < +70NC-20+20
Voltage-Measurement Resolution1.25mV/cell
Voltage-Measurement RangeMAX17058: VDD pin2.55VMAX17059: CELL pin510
SDA, SCL, QSTRT Input Logic-HighVIH1.4V
SDA, SCL, QSTRT Input Logic-LowVIL 0.5V
SDA, ALRT Output Logic-LowVOLIOL = 4mA 0.4V
SDA, SCL Bus Low-Detection
CurrentIPDVSDA = VSCL = 0.4V (Note 5)0.20.4FA
Bus Low-Detection TimeouttSLEEP(Note 6)1.752.5s
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS
SCL Clock FrequencyfSCL(Note 7)0400kHz
Bus Free Time Between a STOP and
START ConditiontBUF1.3Fs
START Condition (Repeated) Hold
TimetHD:STA(Note 8)0.6Fs
Low Period of SCL ClocktLOW1.3Fs
MAX17058/MAX17059
1-Cell/2-Cell Li+ ModelGauge ICs
Note 1: Specifications are tested 100% at TA = +25NC. Limits over the operating range are guaranteed by design and
characterization.
Note 2: All voltages are referenced to GND.
Note 3: Test is performed on unmounted/unsoldered ports.
Note 4: The voltage is trimmed and verified with 16x averaging.
Note 5: This current is always present.
Note 6: The IC enters sleep mode after SCL < VIL and SDA < VIL for longer than 2.5s.
Note 7: Timing must be fast enough to prevent the IC from entering sleep mode due to bus low for period > tSLEEP.
Note 8: fSCL must meet the minimum clock low time plus the rise/fall times.
Note 9: The maximum tHD:DAT has to be met only if the device does not stretch the low period (tLOW) of the SCL signal.
Note 10: This device internally provides a hold time of at least 100ns for the SDA signal (referred to the VIH,MIN of the SCL signal)
to bridge the undefined region of the falling edge of SCL.
Note 11: Filters on SDA and SCL suppress noise spikes at the input buffers and delay the sampling instance.
Note 12: CB is total capacitance of one bus line in pF.
ELECTRICAL CHARACTERISTICS (I2C INTERFACE) (continued)
(2.5V < VDD < 4.5V, -20NC < TA < +70NC, unless otherwise noted.) (Note 1)
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS
High Period of SCL ClocktHIGH0.6Fs
Setup Time for a Repeated START
ConditiontSU:STA0.6Fs
Data Hold TimetHD:DAT(Notes 9, 10)00.9Fs
Data Setup TimetSU:DAT(Note 9)100ns
Rise Time of Both SDA and SCL
SignalstR20 + 0.1CB300ns
Fall Time of Both SDA and SCL
SignalstF20 + 0.1CB300ns
Setup Time for STOP ConditiontSU:STO0.6Fs
Spike Pulse Widths Suppressed by
Input FiltertSP(Note 11)0.650ns
Capacitive Load for Each Bus LineCB(Note 12)400pF
SCL, SDA Input CapacitanceCB,IN60pF
SDA
SCL
tLOW
tHD:STA
tHD:DAT
tSU:STAtSU:STO
tSU:DATtHD:STA
tSPtRtBUF
SSrPS
MAX17058/MAX17059
1-Cell/2-Cell Li+ ModelGauge ICs
Typical Operating Characteristics
(TA = +25NC, battery is Sanyo UF504553F, unless otherwise noted.)
QUIESCENT CURRENT vs. SUPPLY
VOLTAGE (ACTIVE MODE)
MAX17058 toc01
VCELL (V)
QUIESCENT CURRENT (µA)
TA = +70°C
TA = +25°C
TA = -20°C
SOC ACCURACY TA = 0°C
MAX17058 toc03
TIME (Hr)
SOC (%)
ERROR (%)64
REFERENCE SOCMODELGAUGE SOCERROR
SOC ACCURACY TA = +40°C
MAX17058 toc05
SOC (%)
ERROR (%)64
REFERENCE SOCMODELGAUGE SOCERROR
VOLTAGE ADC ERROR vs. TEMPERATURE
MAX17058 toc02
TEMPERATURE (°C)
VOLTAGE ADC ERROR (mV/CELL)40-51025
VCELL = 3.6V
VCELL = 2.5V
VCELL = 4.5V
SOC ACCURACY TA = +20°C
MAX17058 toc04
TIME (Hr)
SOC (%)
ERROR (%)64
REFERENCE SOCMODELGAUGEERROR
-10010
MAX17058/MAX17059
1-Cell/2-Cell Li+ ModelGauge ICs
Typical Operating Characteristics (continued)
(TA = +25NC, battery is Sanyo UF504553F, unless otherwise noted.)
ZIGZAG PATTERN SOC ACCURACY (1/3)
MAX17058 toc06
TIME (Hr)
SOC (%)
ERROR (%)6040
REFERENCE SOCMODELGAUGE SOCERROR
ZIGZAG PATTERN SOC ACCURACY (3/3)
MAX17058 toc08
TIME (Hr)
SOC (%)
ERROR (%)
REFERENCE SOCMODELGAUGE SOCERROR
NO ERROR ACCUMULATED AFTER
100 HOURS
ZIGZAG PATTERN SOC ACCURACY (2/3)
MAX17058 toc07
TIME (Hr)
SOC (%)
ERROR (%)
REFERENCE SOCMODELGAUGE SOCERROR
MAX17058 toc09
4ms/div
DEBOUNCE
COMPLETED
DEBOUNCE
BEGINS
VCELL
OCV
BATTERY-INSERTION DEBOUNCE/
OCV ACQUISITION
