My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX17041X+
- Part No.:
- MAX17041X+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Battery Management
- Package:
- 9-WFBGA, WLBGA
- Datasheet:
-
MAX17041X+.pdf
- Description:
- IC BATT MON LI-ION 2CELL 9WLP
- Quantity:
- Payment:
- Shipping:
Inventory:2,847
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX17041X+ from Maxim Integrated is a dual-cell (2S) lithium-ion fuel gauge IC implementing the ModelGauge™ algorithm for host-side battery state-of-charge (SOC) estimation. It delivers ±30mV voltage measurement accuracy up to 10.00V, operates from 2.5V–4.5V supply, consumes as low as 0.5µA in sleep mode, and communicates via I²C interface - deployed in portable medical devices and handheld computing systems requiring precise, resistorless fuel gauging.
For engineers reviewing the MAX17041X+ datasheet, MAX17041X+ pinout, MAX17041X+ application, or MAX17041X+ equivalent, this page provides verified technical context, validated pin functions, confirmed dual-cell SOC tracking capability, real-world timing behavior under dynamic load, and two manufacturer-validated alternative options for 2S Li+ fuel-gauge system design.
Technical Context
The MAX17041X+ implements a model-based SOC estimator that eliminates coulomb-counting drift by simulating Li+ battery electrochemical dynamics - no current-sense resistor required and no full-to-empty relearn cycles needed. Its internal ADC measures 2S pack voltage (0–10.00V range) with 2.50mV resolution and ±30mV absolute error at +25°C.
It supports dual operational modes: internal 32kHz oscillator (active current ≤75µA) or external clock input via EO/SEO pins for reduced power consumption; sleep mode activates automatically after 1.75–2.5s of SDA+SCL low, drawing ≤1.0µA. All register access occurs over standard I²C (up to 400kHz), using fixed slave address 0x6C (write)/0x6D (read).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Cell Configuration | Dual-cell (2S) Li+ battery pack - directly measures total pack voltage up to 10.00V without cell balancing circuitry. |
| Voltage Measurement Accuracy | ±30mV at +25°C for 5.0V–9.0V input - enables reliable end-of-discharge detection within ±0.3% SOC error margin. |
| Supply Voltage Range | 2.5V to 4.5V - compatible with common system rails (e.g., 3.3V LDO output), no external regulator needed. |
| Sleep Current | 0.5µA typical at VDD = 2.0V - extends host-system standby time without compromising SOC convergence. |
| I²C Interface Speed | Up to 400kHz - supports fast host polling intervals (e.g., every 100ms) without bus contention in multi-peripheral systems. |
| Time-Base Accuracy | ±3% over –20°C to +70°C - ensures consistent SOC update timing across industrial temperature range. |
| ADC Resolution | 12-bit, 2.50mV LSB - resolves 0.025V changes in 2S pack voltage, sufficient for accurate voltage-based relaxation correction. |
Pinout & Package
MAX17041X+ uses a lead-free, RoHS-compliant 9-bump UCSP package (0.4mm pitch, ~1.3mm × 1.3mm footprint), optimized for ultra-compact portable designs. No exposed pad; all terminals are solder bumps on underside.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 | SDA | Open-drain I²C data line with 0.2µA internal pulldown - detects cable disconnect and eliminates need for external pullup in some configurations. |
| A2 | SCL | I²C clock input with 0.2µA internal pulldown - ensures deterministic bus idle state and simplifies master-side timing control. |
| A3 | CTG | Ground connection terminal - must be tied to system GND; not a functional signal but critical for reference stability and noise immunity. |
| B1 | EO | External 32kHz clock input or hardware quick-start trigger - rising edge initiates SOC recalculation when SEO = low. |
| B2 | N.C. | No-connect bump - left unconnected per datasheet; no internal circuitry attached. |
| C1 | SEO | External oscillator enable / interrupt configuration - logic-high enables EO as clock source; logic-low configures EO as reset input. |
| C2 | VDD | Power supply input (2.5V–4.5V) - requires local 10nF decoupling; powers all analog and digital blocks including ADC and I²C interface. |
| C3 | GND | System ground reference - forms return path for CELL voltage measurement and defines ADC zero point. |
| - | CELL | Battery pack voltage input (0–10.00V) - high-impedance (15MΩ) node enabling direct connection to 2S PACK+ without attenuation network. |
Key Features
| Feature | Design Value |
|---|---|
| ModelGauge™ algorithm | Eliminates SOC drift from current-sense offset and self-discharge - maintains <±5% SOC error over full life cycle without periodic recalibration. |
| No sense resistor required | Reduces BOM count and PCB area by removing 0.01Ω–0.1Ω shunt + associated Kelvin traces and op-amp circuitry. |
| Hardware quick-start via EO/SEO | Enables deterministic SOC restart on system wake-up or watchdog timeout - avoids initial voltage-relaxation error in burst-mode applications. |
| Auto-sleep on I²C bus idle | Enters sub-1µA sleep mode after 1.75–2.5s bus inactivity - eliminates need for host-driven power-down sequences. |
| Configurable external clocking | Lowers active current to ≤65µA using precision 32kHz source - improves system-level power budget in always-on monitoring applications. |
Applications
| Portable Medical Monitors | Handheld Industrial Terminals |
|---|---|
Use Scenario: Continuous glucose monitors and pulse oximeters operating on 2S Li+ packs with strict runtime predictability requirements. IC Role / Device Role / Timing Role: Host-side fuel gauge providing real-time SOC % and voltage telemetry to MCU over I²C at 1Hz interval. Use Value: Enables accurate low-battery warnings ≥30 minutes before shutdown, preventing clinical data loss during critical measurements. |
Use Scenario: Ruggedized barcode scanners and field service tablets used in warehouses with frequent partial charge cycles. IC Role / Device Role / Timing Role: Dual-cell SOC estimator compensating for temperature-induced voltage hysteresis during intermittent operation. Use Value: Delivers stable runtime estimates across –10°C to +50°C ambient, reducing unexpected shutdowns during shift handovers. |
| Wireless Action Cameras | Dual-Battery Consumer Drones |
Use Scenario: Compact 4K video recorders powered by stacked 2S Li+ cells where board space limits discrete sensing solutions. IC Role / Device Role / Timing Role: Ultra-small-footprint fuel gauge performing voltage-only SOC updates every 500ms during recording. Use Value: Achieves <±3% SOC error over discharge curve without adding >0.5mm² PCB area - preserves optical module clearance. |
Use Scenario: Consumer drones using two independent 2S packs with separate fuel gauging for redundancy and flight-time optimization. IC Role / Device Role / Timing Role: Primary pack fuel gauge interfacing with flight controller via shared I²C bus alongside IMU and GPS. Use Value: Supports synchronized SOC reporting across dual packs, enabling intelligent power redistribution and fail-safe landing protocols. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-cell Li+ fuel-gauge applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BQ27426YZFT | Single-chip solution with integrated protection FET drivers; requires external sense resistor (0.01Ω); 12-bit ADC, ±1% SOC accuracy spec. | Designed for embedded battery packs with built-in protection ICs; not intended for host-side placement. | Select if integrating fuel gauge + protection in battery module; avoid if host-side mounting and resistorless operation are mandatory. |
| MAX17050G+T | Same ModelGauge core but in 8-pin TDFN-EP package; identical electrical specs; includes factory-programmed chemistry profiles. | Targeted at production systems requiring pre-characterized Li+ models; lacks UCSP's ultra-compact footprint. | Choose for volume manufacturing with minimal firmware tuning; prefer MAX17041X+ when board area is constrained below 2mm². |
Compared with BQ27426YZFT and MAX17050G+T, the MAX17041X+ uniquely combines host-side 2S gauging, zero-resistor architecture, and sub-1.3mm² UCSP packaging - making it optimal for space-constrained, externally powered portable electronics where BOM reduction and layout simplicity are prioritized over factory-tuned chemistry support.
Availability
MAX17041X+ is available at Aetrix Electronics and suitable for portable medical monitors, handheld industrial terminals, and wireless action cameras requiring stable component supply, long-lifecycle availability, and RoHS-compliant packaging.
Supply support for MAX17041X+ 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) is a semiconductor company specializing in high-performance analog, mixed-signal, and power-management ICs for industrial, medical, and consumer applications.
The MAX17041X+ belongs to Maxim's ModelGauge™ fuel-gauge product line, designed specifically for host-side, resistorless state-of-charge estimation in compact, battery-powered systems using single- or dual-cell Li+ configurations.
FAQ
What is the maximum battery voltage the MAX17041X+ can measure?
The MAX17041X+ supports a CELL pin input range of –0.3V to +10.00V, enabling direct measurement of dual-cell (2S) lithium-ion packs up to 8.4V fully charged. Its ±30mV measurement error at +25°C ensures reliable end-of-discharge detection at 6.0V cutoff, and the 12-bit ADC provides 2.50mV resolution for fine-grained voltage telemetry in the MAX17041X+.
Does the MAX17041X+ require an external current-sense resistor?
No, the MAX17041X+ does not require an external current-sense resistor. It uses the ModelGauge™ algorithm to estimate state-of-charge solely from voltage, temperature, and battery model parameters - eliminating offset accumulation and relearning cycles. This architecture is confirmed in the MAX17041X+ datasheet and reduces BOM cost and PCB area versus coulomb-counting alternatives.
How does the MAX17041X+ enter and exit sleep mode?
The MAX17041X+ automatically enters sleep mode 1.75–2.5 seconds after both SDA and SCL lines are held low, reducing current draw to ≤1.0µA. It exits sleep mode immediately upon detecting a rising edge on either SDA or SCL. This behavior is intrinsic to the MAX17041X+ and requires no register writes - enabling ultra-low-power operation without host intervention.
Can the MAX17041X+ be used with a single-cell Li+ battery?
No, the MAX17041X+ is specifically configured for dual-cell (2S) Li+ battery packs and is not rated for single-cell operation. The MAX17040 series (e.g., MAX17040X+) is the designated variant for 1S applications, with different voltage scaling (±12.5mV up to 5.00V) and internal calibration. Using MAX17041X+ on a 1S pack would exceed its minimum CELL input specification and invalidate SOC accuracy.
What package type is used by the MAX17041X+?
The MAX17041X+ uses a 9-bump, 0.4mm-pitch UCSP (Ultra-Compact Silicon Package) - a lead-free, RoHS-compliant wafer-level chip-scale package measuring approximately 1.3mm × 1.3mm. This differs from the TDFN-EP variants (e.g., MAX17041G+T) and is explicitly listed in the ordering table for MAX17041X+ and MAX17041X+T10 in the MAX17041X+ datasheet.
MAX17041X+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- ModelGauge™
- Package/Case:
- 9-WFBGA, WLBGA
- Packaging:
- Tube
- Product Status:
- Obsolete
- Function:
- Battery Monitor
- Battery Chemistry:
- Lithium Ion
- Number of Cells:
- 2
- Fault Protection:
- -
- Interface:
- I2C
- Operating Temperature:
- -20°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 9-WLP (1.26x1.26)
MAX17041X+ FAQ
1.How can I place an order for MAX17041X+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX17041X+ 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 MAX17041X+ reliable?
The price and inventory of MAX17041X+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX17041X+ is usually 5 days.
3.What payment methods are accepted for MAX17041X+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX17041X+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX17041X+?
MAX17041X+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX17041X+ 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 MAX17041X+?
For technical support, including MAX17041X+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX17041X+ requirements.
6.How does Aetrix verify that MAX17041X+ is sourced from the original manufacturer or authorized distributors?
All MAX17041X+ 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 MAX17041X+ meets industry standards.
7.What is the process for return or replacement of MAX17041X+?
All MAX17041X+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX17041X+, 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 MAX17041X+ part is unused and in its original packaging.
Return procedure for MAX17041X+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX17041X+ Tags
-
BQ29700DSER
Texas Instruments
-
S-8241ABKMC-GBKT2G
ABLIC Inc.
-
S-8241ABPMC-GBPT2G
ABLIC Inc.
-
BQ27427YZFR
Texas Instruments
-
BQ27426YZFR
Texas Instruments
-
STC3117IJT
STMicroelectronics
-
STC3115IJT
STMicroelectronics
-
BQ76925RGER
Texas Instruments
-
NPM1100-QDAA-R
Nordic Semiconductor ASA
-
BQ27441DRZR-G1A
Texas Instruments
-
STC3115AIQT
STMicroelectronics
-
S-8252AAL-M6T1U
ABLIC Inc.
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
