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Analog Devices Inc./Maxim Integrated MAX17310G+
- Part No.:
- MAX17310G+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Battery Management
- Package:
- 14-WFDFN Exposed Pad
- Datasheet:
-
MAX17310G+.pdf
- Description:
- MODEL GAUGE M5 1S TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,185
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Product details
Overview
MAX17310G+ from Analog Devices is a stand-alone 1-cell Li-ion/polymer fuel gauge IC with integrated protector, battery internal self-discharge (ISD) detection, and SHA-256 authentication. It delivers 24µA quiescent current in active mode, monitors voltage/current/temperature in real time, enforces JEITA-compliant charging prescriptions, and provides ModelGauge m5 fuel-gauge accuracy (±1% SOC) across aging, temperature, and discharge rates - deployed in smartwatches and medical wearables.
For engineers reviewing the MAX17310G+ datasheet, MAX17310G+ pinout, MAX17310G+ application, or MAX17310G+ equivalent, this page details its pack-side protection architecture, self-discharge monitoring capability (exclusive to MAX17300/MAX17310), SHA-256 secure authentication flow, and ModelGauge m5 EZ algorithm implementation without calibration.
Technical Context
The MAX17310G+ implements a dual-path fuel-gauge architecture: coulomb counting for short-term precision and open-circuit voltage (OCV) modeling for long-term stability, dynamically mixed via ModelGauge m5. It integrates fast/slow overcurrent comparators, temperature-dependent overvoltage thresholds, and ideal diode discharge control during charge faults.
Protection logic uses external high-side N-FETs and supports parallel battery management (MAX17300/MAX17310 only). The IC executes JEITA step-charging profiles, zero-volt charging, SmartEmpty undervoltage recovery, and permanent failure detection based on configurable fault timers and ISD accumulation thresholds.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Quiescent Current | 24µA (FETs enabled, active); enables multi-year battery runtime in always-on wearables. |
| Fuel-Gauge Accuracy | ±1% state-of-charge (SOC) error over full life cycle; achieved via ModelGauge m5 OCV/coulomb mixing and aging compensation. |
| Self-Discharge Detection | Enabled only on MAX17300/MAX17310; detects abnormal internal leakage >1.5µA over 72h using nonvolatile history logging. |
| Authentication | SHA-256 with 160-bit secret key + unique 64-bit ID; prevents pack cloning in certified medical/smart battery systems. |
| Interface | I²C (2-wire) or 1-Wire®; supports host µP access to 122 bytes of user NV memory and real-time protection status registers. |
| Protection Thresholds | Configurable overvoltage (4.20–4.45V), overcurrent (±5A typical), over/undertemperature (−20°C to +85°C), and short-circuit response <500ns. |
| Dynamic Power | Estimates instantaneous max system power delivery without violating min input voltage; used for adaptive load management in handheld radios. |
Pinout & Package
MAX17310G+ is packaged in a lead-free, 3mm × 3mm, 14-pin TDFN-EP with exposed pad. Pin functions are validated per Analog Devices DS19-100463 Rev 11 (p.25–26).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PK+ | Battery pack positive terminal | Main high-side power path; connects to external CHG/DIS FET sources. |
| PK− | Battery pack negative terminal | Reference node for current sensing and protection logic ground. |
| SENSE | Current-sense resistor connection | Differential input for ±50mV full-scale shunt measurement; enables accurate coulomb counting. |
| CSN / CSP | Charge/Discharge FET gate drivers | Open-drain outputs driving external high-side N-FET gates; support ideal diode behavior during faults. |
| ALRT/PIO | Programmable I/O / alert output | Configurable as interrupt (e.g., SOC<10%, fault event) or general-purpose digital I/O. |
| SDA/DQ | Data line (I²C or 1-Wire) | Shared bidirectional interface; requires pull-up for I²C, no pull-up for 1-Wire. |
| SCL/OD | Serial clock / open-drain output | I²C clock input or 1-Wire presence-detect output; dual-function pin per interface mode. |
| TH | Thermistor input | Analog input for NTC thermistor; measures die and/or external cell temperature with 0.5°C resolution. |
| GND | Ground reference | Power and signal return; tied to EP (exposed pad) for thermal dissipation and noise immunity. |
Key Features
| Feature | Design Value |
|---|---|
| ModelGauge m5 EZ Algorithm | Delivers %SOC, mAh capacity, time-to-empty/full, cycle count, and Cycle+™ age forecast without factory calibration or learning cycles. |
| Battery Internal Self-Discharge Detection | Monitors cumulative leakage current over 72h; triggers nonvolatile fault log and ALRT if threshold exceeded - exclusive to MAX17300/MAX17310. |
| JEITA Charging Prescription | Enforces temperature-compensated voltage/current limits per JEITA standard; prevents thermal runaway during charging in medical devices. |
| Pushbutton Wakeup | Eliminates system-level standby current until physical button press; reduces host µP power consumption in smart battery packs. |
| Nonvolatile History Logging | Stores 100 records of voltage/current/temperature/fault events; enables field failure analysis and battery health trending. |
| SHA-256 Authentication | Verifies pack authenticity using challenge-response protocol; blocks counterfeit batteries in regulated healthcare and premium consumer applications. |
Applications
| Smart Wearables | Medical Monitoring Devices |
|---|---|
|
Use Scenario: Continuous heart-rate and SpO₂ monitoring in wrist-worn fitness trackers with 7-day battery life. IC Role / Device Role / Timing Role: Pack-side fuel gauge and protector managing single-cell Li-poly battery safety and precise SOC reporting to BLE host. Use Value: ±1% SOC accuracy ensures reliable low-battery alerts; 24µA IQ extends runtime without compromising protection responsiveness. |
Use Scenario: Portable ECG and glucose meters requiring FDA-compliant battery safety and tamper-proof authentication. IC Role / Device Role / Timing Role: Certified safety monitor enforcing JEITA thermal limits and SHA-256 identity verification before enabling therapy delivery. Use Value: Permanent failure detection and ISD monitoring meet IEC 62366 usability requirements; nonvolatile logging supports audit trails. |
| Smartphones & Tablets | Handheld Radios & Terminals |
|
Use Scenario: Dual-role battery management in compact 2-in-1 laptops with detachable keyboard and dynamic power budgeting. IC Role / Device Role / Timing Role: Stand-alone gauge providing dynamic power estimation and SmartEmpty recovery to sustain USB-C PD negotiation under low-Vbat. Use Value: Dynamic power output calculation enables real-time system load throttling without host intervention; zero-volt charging restores deeply discharged cells. |
Use Scenario: Ruggedized two-way radios operating in extreme ambient temperatures (−20°C to +60°C) with mission-critical uptime. IC Role / Device Role / Timing Role: High-reliability protector detecting overtemperature faults within 50ms and disabling FETs before thermal damage occurs. Use Value: Fast overcurrent comparators (<500ns) prevent MOSFET avalanche during antenna VSWR events; ideal diode discharge avoids reverse current during charge faults. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fuel gauge with protector applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BQ34Z100-G1 | No integrated SHA-256 or ISD detection; uses TI Impedance Track™ instead of ModelGauge m5; requires external MCU for JEITA enforcement. | Lacks secure authentication and self-discharge monitoring - unsuitable for anti-cloning or predictive maintenance use cases. | Select when cost sensitivity outweighs security needs and host MCU can handle JEITA logic. |
| MAX17205 | Lower IQ (18µA hibernate), no ISD detection, no SHA-256, smaller 12-pin WLP package; ModelGauge m3 algorithm (±5% SOC typical). | Targeted at cost-optimized wearables where cryptographic security and leakage monitoring are not required. | Choose for space-constrained designs needing basic fuel gauging without advanced diagnostics or authentication. |
Compared with BQ34Z100-G1 and MAX17205, the MAX17310G+ uniquely combines hardware-accelerated SHA-256, ISD detection, and ModelGauge m5's ±1% SOC accuracy - making it the only option for medical-grade smart batteries requiring both security and predictive health analytics.
Availability
MAX17310G+ is available at Aetrix Electronics and suitable for smart wearables, portable medical devices, and handheld industrial terminals requiring stable component supply, long-lifecycle support, and traceable sourcing for ISO 13485 and IATF 16949 compliance.
Supply support for MAX17310G+ 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
Analog Devices (acquired Maxim Integrated in 2021) is a global leader in high-performance analog, mixed-signal, and digital signal processing technologies, serving industrial, automotive, communications, and healthcare markets.
The MAX17300–MAX17313 family was designed specifically for secure, stand-alone battery management in space-constrained, safety-critical portable electronics - emphasizing fuel-gauge accuracy, cryptographic authentication, and autonomous protection.
FAQ
What distinguishes MAX17310G+ from MAX17300G+?
The MAX17310G+ and MAX17300G+ share identical functionality, pinout, and electrical specifications. The '10' suffix denotes the same device variant - both support internal self-discharge detection, SHA-256 authentication, ModelGauge m5 EZ, and JEITA charging. No functional difference exists between MAX17300G+ and MAX17310G+; they are orderable equivalents per Analog Devices documentation.
Does MAX17310G+ support both I²C and 1-Wire interfaces simultaneously?
No. The MAX17310G+ supports either I²C or 1-Wire operation, selected at power-up via the SCL/OD pin configuration. In I²C mode, SCL/OD serves as clock input; in 1-Wire mode, it becomes an open-drain presence-detect output. Both interfaces provide full register access, but concurrent use is not supported.
How does the internal self-discharge (ISD) detection work in MAX17310G+?
The MAX17310G+ measures cumulative current imbalance over 72 hours using its coulomb counter and triggers ISD detection when net leakage exceeds 1.5µA. Results are stored in nonvolatile fault logs (nFaultLog Register 1AEh) and reported via ALRT/PIO. This feature is exclusive to MAX17300/MAX17310 and requires no external components.
Can MAX17310G+ operate without external FETs?
No. The MAX17310G+ is a controller-only IC and requires external high-side N-channel FETs for charge/discharge switching and protection enforcement. Its CSN/CSP pins drive FET gates; absence of external FETs leaves the battery unprotected and disables all overcurrent/short-circuit responses.
What is the role of the ModelGauge m5 EZ algorithm in MAX17310G+?
The ModelGauge m5 EZ algorithm in MAX17310G+ fuses coulomb counting and voltage-based OCV modeling to deliver ±1% SOC accuracy across aging, temperature, and load. It auto-compensates for cell impedance changes and eliminates factory calibration - enabling out-of-box accuracy for rapid product deployment.
MAX17310G+ 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:
- Fuel Gauge
- Battery Chemistry:
- Lithium Ion/Polymer
- Number of Cells:
- 1
- Fault Protection:
- Over Current, Over Temperature, Over/Under Voltage, Short Circuit
- Interface:
- 1-Wire
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TDFN (3x3)
MAX17310G+ FAQ
1.How can I place an order for MAX17310G+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX17310G+ 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 MAX17310G+ reliable?
The price and inventory of MAX17310G+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX17310G+ is usually 5 days.
3.What payment methods are accepted for MAX17310G+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX17310G+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX17310G+?
MAX17310G+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX17310G+ 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 MAX17310G+?
For technical support, including MAX17310G+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX17310G+ requirements.
6.How does Aetrix verify that MAX17310G+ is sourced from the original manufacturer or authorized distributors?
All MAX17310G+ 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 MAX17310G+ meets industry standards.
7.What is the process for return or replacement of MAX17310G+?
All MAX17310G+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX17310G+, 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 MAX17310G+ part is unused and in its original packaging.
Return procedure for MAX17310G+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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