MAX17201G+ by Analog Devices

Stand-Alone ModelGauge m5 Fuel Gauge with SHA-256 Authentication

Status: Active
Series: MAX17201
RoHS: Unknown
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The MAX1720x/MAX1721x are ultra-low power stand-alone fuel gauge ICs that implement the Maxim ModelGauge™ m5 algorithm without requiring host interaction for configuration. This feature makes the MAX1720x/MAX1721x excellent pack-side fuel gauges. The MAX17201/MAX17211 monitor a single cell pack. The MAX17205/MAX17215 monitor and balance a 2S or 3S pack or monitor a multiple-series cell pack. To prevent battery pack cloning, the ICs integrate SHA-256 authentication with a 160-bit secret key. Each IC incorporates a unique 64-bit ID. The ModelGauge™ m5 algorithm combines the short-term accuracy and linearity of a coulomb counter with the long-term stability of a voltage-based fuel gauge, along with temperature compensation to provide industry-leading fuel gauge accuracy. The IC automatically compensates for cell aging, temperature, and discharge rate, and provides accurate state of charge (SOC) in milliampere-hours (mAh) or percentage (%) over a wide range of operating conditions. As the battery approaches the critical region near empty, the ModelGauge m5 algorithm invokes a special error correction mechanism that eliminates any error. The ICs provide accurate estimation of time-to-empty and time-to-full, Cycle+™ age forecast, and three methods for reporting the age of the battery: reduction in capacity, increase in battery resistance, and cycle odometer. The ICs provide precision measurements of current, voltage, and temperature. Temperature of the battery pack is measured using an internal temperature measurement and up to two external thermistors supported by ratiometric measurements on auxiliary inputs. A Maxim 1-Wire® (MAX17211/MAX17215) or 2-wire I2C (MAX17201/MAX17205) interface provides access to data and control registers. The ICs are available in lead-free, 3mm × 3mm, 14-pin TDFN and 1.6mm × 2.4mm 15-bump WLP packages. Design Solution: Advanced Battery Management for the Rest of Us › How to Prevent Battery Cloning Using the MAX17211EVKIT

Prices starting from US$2.71


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Logo for Newark Electronics Newark Electronics US$3.07
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Logo for element14 element14 US$2.84
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Logo for Farnell Farnell US$2.71
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Features

ModelGauge m5 Algorithm Eliminates Error when Approaching Empty Voltage Eliminates Coulomb-Counter Drift Current, Temperature, and Age Compensated Does Not Require Empty, Full, or Idle States No Characterization Required for EZ Performance (See the ModelGauge m5 EZ Performance Section) Cycle+ Age Forecasting Observes Lifespan
Eliminates Error when Approaching Empty Voltage
Eliminates Coulomb-Counter Drift
Current, Temperature, and Age Compensated
Does Not Require Empty, Full, or Idle States
No Characterization Required for EZ Performance (See the ModelGauge m5 EZ Performance Section)
Cycle+ Age Forecasting Observes Lifespan
Nonvolatile Memory for Stand-Alone Operation Learned Parameters and History Logging Up to 75 Words Available for User Data
Learned Parameters and History Logging
Up to 75 Words Available for User Data
Precision Measurement System No Calibration Required
No Calibration Required
Time-to-Empty and Time-to-Full Estimation
Temperature Measurement Die Temperature Up to Two External Thermistors
Die Temperature
Up to Two External Thermistors
Multiple Series Cell Pack Operation
Low Quiescent Current MAX172x1: 18µA Active, 9µA Hibernate MAX172x5: 25µA Active, 12µA Hibernate
MAX172x1: 18µA Active, 9µA Hibernate
MAX172x5: 25µA Active, 12µA Hibernate
Alert Indicator for Voltage, SOC, Temperature, Current, and 1% SOC Change
High-Speed Overcurrent Comparators
Predicts Remaining Capacity Under Theoretical Load
SHA-256 Authentication
Maxim 1-Wire or 2-Wire (I2C) Interface
SBS 1.1 Compatible Register Set

Specifications

Functions Fuel GaugeSHA-256 AuthenticationStatus Monitor
Interface 2-Wire
User Data Storage (bits) 1248 NVM
VSUPPLY (V) 2.3 to 4.9
Package/Pins TDFN-CU/14WLP/15
Oper. Temp. (°C) -40 to +85
BudgetaryPrice (See Notes) 1.69


MAX17201G+ Semiconductors - ICs by Analog Devices

BATT FUEL GAUGE LI-ION 4.9V TDFN-14

Status: Unknown
Series: -
RoHS: Unknown
View Datasheet Manufacturer Site View Pricing & Stock

Specifications

Battery Management Function Fuel Gauge
Battery Type Li-Ion
Supply Voltage Min 2.3V
Supply Voltage Max 4.9V
Battery IC Case Style TDFN
No. of Pins 14Pins
IC Interface Type I2C
Operating Temperature Min -40°C
Operating Temperature Max 85°C
Product Range -
RoHS Phthalates Compliant To Be Advised
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)

Alternative Descriptions

MODELGAUGE M5 1S I2C TDFN | RS
Batt Fuel Gauge, Li-Ion, 4.9V, Tdfn-14 | Newark Electronics
BATT FUEL GAUGE, LI-ION, 4.9V, TDFN-14 | element14

Frequently Asked Questions

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Is the MAX17201G+ RoHS compliant?

This part has not been flagged as RoHS Compliant.

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Authorised distributors including RS, Newark Electronics, element14 and Farnell have stock available or on a lead time for MAX17201G+ .

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