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Analog Devices Inc./Maxim Integrated MAX17215G+00E
- Part No.:
- MAX17215G+00E
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Battery Management
- Package:
- 14-WFDFN Exposed Pad
- Datasheet:
-
MAX17215G+00E.pdf
- Description:
- IC BATT MFUNC 2-3CELL 14TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,001
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Product details
Overview
The MAX17215G+00E from Maxim Integrated is a stand-alone ModelGauge™ m5 fuel gauge IC designed for 2S/3S lithium-ion battery packs, featuring integrated cell balancing, SHA-256 authentication with 160-bit secret key, and precision current/voltage/temperature measurement. It delivers industry-leading state-of-charge (SOC) accuracy in % and mAh across temperature, aging, and discharge-rate variations, and supports time-to-empty/full estimation and Cycle+ age forecasting.
For engineers reviewing the MAX17215G+00E datasheet, MAX17215G+00E pinout, MAX17215G+00E application, or MAX17215G+00E equivalent, this page provides verified technical context, package mapping to 15-bump WLP, real-world use cases in portable medical equipment and handheld radios, and two confirmed alternative fuel gauges with documented functional and interface differences.
Technical Context
The MAX17215G+00E implements the ModelGauge m5 algorithm-hybridizing coulomb counting and voltage-based SOC estimation with automatic temperature, aging, and rate compensation. It operates autonomously without host configuration and invokes special error correction near empty voltage.
It supports up to two external thermistors via ratiometric auxiliary inputs, measures cell voltages per series string (Cell1–Cell3), and performs active cell balancing on 2S/3S packs using internal FETs. Communication occurs over Maxim 1-Wire® interface (DQ/SDA pin), and it complies with SBS 1.1 register structure.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Cell Support | Monitors and balances 2-series or 3-series Li-ion packs; enables per-cell voltage tracking (VCELL1–VCELL3) and balancing control. |
| Interface | Maxim 1-Wire® (single-pin DQ/SDA); compatible with SBS 1.1 register map for seamless integration into existing fuel gauge firmware stacks. |
| Quiescent Current | 25µA active mode, 12µA hibernate mode-optimized for ultra-low-power portable applications where runtime and shelf life are critical. |
| Fuel Gauge Accuracy | Industry-leading SOC accuracy across temperature (-20°C to +60°C), aging, and load profiles; eliminates coulomb-counter drift and empty-voltage error. |
| Authentication | Integrated SHA-256 engine with 160-bit secret key storage and unique 64-bit ROM ID-prevents pack cloning and ensures supply-chain integrity. |
| Temperature Sensing | Dies temperature + up to two external thermistors measured ratiometrically; supports accurate thermal modeling for safety-critical battery management. |
| Age Forecasting | Cycle+™ forecasts remaining lifespan using three independent metrics: capacity fade, resistance growth, and cycle odometer-enables predictive maintenance. |
Pinout & Package
The MAX17215G+00E is packaged in a lead-free, 1.6mm × 2.4mm, 15-bump Wafer-Level Package (WLP).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| DQ/SDA | 1-Wire data I/O | Single-wire bidirectional communication interface; requires pull-up resistor; supports SBS 1.1 register access and firmware updates. |
| PACK+ | High-side pack voltage sense | Connects to top of series stack; used for total pack voltage measurement and balancing reference. |
| PACK− | Low-side pack ground reference | System ground return path; serves as reference for current sensing and cell voltage measurements. |
| RSENSE | Coulomb counter current sense input | Accepts voltage drop across external sense resistor; enables high-accuracy current integration for precise charge tracking. |
| VBATT | Battery supply input | Powers internal circuitry from pack voltage; operates over 2.5V to 4.5V range-supports full 2S/3S Li-ion operating window. |
| CSN | Chip select (active low) | Enables device during multi-drop 1-Wire bus operation; allows multiple MAX17215G+00E devices on shared bus with individual addressing. |
| GND | Ground terminal | Dedicated ground bump; must be connected to low-impedance system ground plane to ensure measurement stability and noise immunity. |
Key Features
| Feature | Design Value |
|---|---|
| ModelGauge m5 Algorithm | Combines coulomb counting and OCV modeling with real-time temperature/aging/rate compensation-delivers <2% SOC error across full lifecycle without calibration or characterization. |
| Stand-Alone Operation | Nonvolatile memory stores learned parameters and history logs; eliminates need for host microcontroller intervention during initialization or runtime adaptation. |
| Cell Balancing Control | Integrated balancing FETs enable passive balancing per cell in 2S/3S configurations; configurable thresholds and duty cycles support safe, efficient capacity equalization. |
| SHA-256 Authentication | Hardware-accelerated cryptographic engine validates pack authenticity using factory-programmed 160-bit key-blocks counterfeit battery modules in OEM systems. |
| Time-to-Empty/Full Estimation | Real-time calculation based on dynamic load profile, temperature, and aging-provides actionable battery runtime predictions for UI and power management subsystems. |
Applications
| Smartphones and Tablets | Portable Medical Equipment |
|---|---|
Use Scenario: Compact, high-density battery packs requiring precise remaining capacity reporting under variable discharge loads and thermal conditions. IC Role / Device Role / Timing Role: Primary fuel gauge IC performing autonomous SOC, SOH, and time-to-empty estimation without host CPU involvement. Use Value: Enables accurate battery-level UI indicators and low-battery warnings while extending usable runtime through optimized charge/discharge algorithms. | Use Scenario: Battery-powered diagnostic devices (e.g., handheld ultrasound, glucose meters) demanding clinical-grade runtime predictability and tamper-proof battery authentication. IC Role / Device Role / Timing Role: Safety-critical fuel gauge providing authenticated, drift-free SOC and cycle-count-based end-of-life alerts. Use Value: Ensures regulatory compliance by preventing unauthorized battery replacements and delivering consistent, traceable battery health metrics. |
| Handheld Radios | e-Readers |
Use Scenario: Ruggedized two-way radios with 2S Li-ion packs operating across wide ambient temperatures (-20°C to +60°C) and intermittent high-current transmit bursts. IC Role / Device Role / Timing Role: Fuel gauge with high-speed overcurrent comparators and robust thermal compensation for burst-load accuracy. Use Value: Prevents unexpected shutdown during mission-critical transmissions by maintaining ±2% SOC accuracy even after hundreds of charge cycles. | Use Scenario: Low-power e-readers with long shelf life requirements and infrequent charging cycles over multi-year product lifetime. IC Role / Device Role / Timing Role: Stand-alone gauge storing learned aging models in nonvolatile memory to maintain accuracy across years of light usage. Use Value: Delivers reliable "% remaining" display after months of standby-no recalibration needed due to zero-drift coulomb counting and voltage hybridization. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fuel gauge applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX17205G+00E | I²C interface (2-wire) instead of 1-Wire; identical ModelGauge m5 algorithm, balancing, and authentication features. | Suitable for systems with I²C infrastructure but no 1-Wire support; requires different pull-up and address configuration. | Select when host MCU lacks 1-Wire peripheral or when multi-device I²C bus simplifies layout. |
| BQ34Z100-G1 | TI Impedance Track™ algorithm; supports 3–16 series cells; uses I²C; no integrated SHA-256 or 1-Wire option. | Broader cell count range but lacks hardware authentication and 1-Wire simplicity; requires more complex host calibration. | Choose for higher-series packs (>3S) or TI ecosystem designs where cryptographic security is handled externally. |
Compared with MAX17205G+00E and BQ34Z100-G1, the MAX17215G+00E uniquely combines 1-Wire simplicity, built-in SHA-256 anti-cloning, and guaranteed 2S/3S balancing-all in a 1.6mm × 2.4mm WLP footprint ideal for space-constrained portable designs.
Availability
MAX17215G+00E is available at Aetrix Electronics and suitable for smartphones and tablets, portable medical equipment, and handheld radios requiring stable component supply, long-term lifecycle support, and secure battery authentication.
Supply support for MAX17215G+00E includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Maxim Integrated (now part of Analog Devices) designs precision analog, mixed-signal, and power management ICs for demanding industrial, medical, and portable applications.
The MAX172xx family targets secure, autonomous battery fuel gauging-specifically engineered to eliminate host dependency, prevent cloning, and maintain accuracy across battery aging and environmental stress.
FAQ
What is the primary function of the MAX17215G+00E in a battery management system?
The MAX17215G+00E serves as a stand-alone fuel gauge IC that autonomously estimates state of charge (SOC), time-to-empty/full, battery age, and health-without host processor configuration. Its ModelGauge m5 algorithm fuses coulomb counting and voltage analysis, and the MAX17215G+00E integrates SHA-256 authentication and 2S/3S cell balancing to deliver secure, high-accuracy battery monitoring in compact portable systems.
Does the MAX17215G+00E require calibration or characterization during manufacturing?
No, the MAX17215G+00E does not require factory calibration or battery characterization. Its ModelGauge m5 algorithm learns battery behavior dynamically and stores parameters in nonvolatile memory. The MAX17215G+00E achieves <2% SOC error out-of-box across temperature, aging, and load conditions-enabling EZ performance and reducing production test complexity.
How does the MAX17215G+00E support battery pack security and anti-cloning?
The MAX17215G+00E embeds a hardware SHA-256 engine and stores a unique 64-bit ROM ID plus a programmable 160-bit secret key in secured memory. During authentication, it signs challenge data to verify pack legitimacy-blocking counterfeit batteries. This security is intrinsic to the MAX17215G+00E and requires no external crypto components or host software overhead.
What package type and size is the MAX17215G+00E supplied in?
The MAX17215G+00E is supplied in a lead-free, 1.6mm × 2.4mm, 15-bump Wafer-Level Package (WLP). This ultra-compact footprint minimizes PCB area and thermal mass-ideal for thin, space-constrained consumer and medical devices where board real estate is at a premium.
Can the MAX17215G+00E monitor more than three series cells?
No, the MAX17215G+00E is specifically designed for 2-series or 3-series Li-ion packs. It provides dedicated registers and balancing control for Cell1, Cell2, and Cell3 (via PACK+, PACK−, and internal FETs). Monitoring four or more series cells requires a different device such as the MAX17215's sibling MAX17217 or alternate solutions like the BQ34Z100-G1.
MAX17215G+00E Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- ModelGauge™
- Package/Case:
- 14-WFDFN Exposed Pad
- Packaging:
- Tray
- Product Status:
- Active
- Function:
- Multi-Function Controller
- Battery Chemistry:
- -
- Number of Cells:
- 2 ~ 3
- Fault Protection:
- -
- Interface:
- 1-Wire
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TDFN (3x3)
MAX17215G+00E FAQ
1.How can I place an order for MAX17215G+00E through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX17215G+00E on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MAX17215G+00E reliable?
The price and inventory of MAX17215G+00E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX17215G+00E is usually 5 days.
3.What payment methods are accepted for MAX17215G+00E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX17215G+00E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX17215G+00E?
MAX17215G+00E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX17215G+00E order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MAX17215G+00E?
For technical support, including MAX17215G+00E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX17215G+00E requirements.
6.How does Aetrix verify that MAX17215G+00E is sourced from the original manufacturer or authorized distributors?
All MAX17215G+00E products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MAX17215G+00E meets industry standards.
7.What is the process for return or replacement of MAX17215G+00E?
All MAX17215G+00E units undergo pre-shipment inspection (PSI). If there is an issue with MAX17215G+00E, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MAX17215G+00E part is unused and in its original packaging.
Return procedure for MAX17215G+00E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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