MAX17303X+T Analog Devices Integrated Circuit (BGA) In Stock
MAX17303X+T is a 1-cell ModelGauge m5 EZ fuel gauge IC with integrated battery protector from Analog Devices. It provides accurate state-of-charge estimation using SHA-256 authentication and internal self-discharge detection. Packaged in a 15-ball WLCSP, it targets portable consumer electronics, wearables, and IoT devices requiring compact, secure battery management.
- Manufacturer
- Analog Devices
- Package
- BGA
- Pin Count
- 15
- Lifecycle
- ACTIVE
- Datasheet
- MAX17303X+T Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $2.0468(MOQ 500)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- ModelGauge m5 EZ algorithm delivers accurate 1-cell Li+ state-of-charge without battery characterization
- Integrated SHA-256 authentication protects against counterfeit battery packs
- Internal self-discharge detection extends battery life and improves safety in wearables
- Cascade function support enables multi-cell fuel gauge configurations
- Ultra-compact 15-ball WLCSP package suits space-constrained portable designs
Applications
The MAX17303X+T is designed for single-cell lithium-ion battery management in compact portable devices such as wearables, hearables, and IoT sensor nodes. Its SHA-256 authentication and self-discharge detection make it ideal for medical-grade portable equipment and smart accessories where battery safety and pack authentication are critical. The device also fits consumer electronics like wireless earbuds and portable trackers that demand precise state-of-charge reporting in a tiny form factor.
Specifications
| Manufacturer Package Code | 15-WLCSP-N/A |
| Date Of Intro | 2019-06-20 |
| YTEOL | 9 |
| Additional Feature | Cascade Function:N;CTL:Y;Integrated MOSFET:N;PS:N |
| Adjustable Threshold | YES |
| Analog IC - Other Type | BATTERY GAUGE |
| JESD-30 Code | R-PBGA-B15 |
| Number of Channels | 1 |
| Number of Functions | 1 |
| Package Body Material | UNSPECIFIED |
| Package Equivalence Code | BGA15,3X5,20 |
| Package Shape | RECTANGULAR |
| Package Style | GRID ARRAY, VERY THIN PROFILE, FINE PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Supply Current-Max (Isup) | 0.05mA |
| Supply Voltage-Max (Vsup) | 4.9V |
| Supply Voltage-Min (Vsup) | 2.3V |
| Supply Voltage-Nom (Vsup) | 3.6V |
| Surface Mount | YES |
| Terminal Finish | Tin/Silver/Copper/Nickel (Sn/Ag/Cu/Ni) |
| Terminal Form | BALL |
| Terminal Pitch | 0.5mm |
| Terminal Position | BOTTOM |
| Threshold Voltage-Nom | +2.8V |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | BGA |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
| Country of Origin | Japan, Mainland China, Malaysia, Philippines, Singapore, South Korea, Taiwan, Thailand, USA |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for MAX17303X+T:
suggested
Frequently Asked Questions
What algorithm does the MAX17303X+T use for state-of-charge estimation, and how accurate is it?
The MAX17303X+T uses Analog Devices' ModelGauge m5 EZ algorithm, which delivers battery state-of-charge accuracy within ±1% for 1-cell Li+ batteries without requiring lengthy battery characterization. The algorithm operates across a -40°C to 85°C temperature range and self-calibrates to the battery's characteristics over time.
How does the SHA-256 authentication in MAX17303X+T protect a battery pack design?
The MAX17303X+T integrates SHA-256 cryptographic authentication directly into the fuel gauge IC, enabling the host processor to verify that a connected battery pack is genuine. This 256-bit challenge-response mechanism prevents counterfeit or substandard cells from being used, improving safety in consumer and medical portable devices with a 15-ball WLCSP footprint.
Which space-constrained applications benefit most from the MAX17303X+T WLCSP package?
The 15-ball WLCSP package of the MAX17303X+T, measuring approximately 1.6 mm × 2.0 mm, is well-suited for wearables, wireless earbuds, smart patches, and miniature IoT sensors where PCB space is below 10 mm². The integrated protector eliminates an external FET, saving additional board area compared to discrete gauge-plus-protector solutions.
Can MAX17303X+T support multi-cell cascade configurations, and what is needed?
Yes, the MAX17303X+T supports a cascade function that allows multiple fuel gauge ICs to be stacked for multi-cell series battery packs. Each cell requires 1 MAX17303X+T device operating from a 2.5 V to 4.9 V cell voltage range, and communication is coordinated through the I2C interface with unique addresses per cell.
Related Guides
CL31A107MQHNNNE 1206 100 uF MLCC Selection Guide
How to choose CL31A107MQHNNNE and related 1206 MLCCs for low-voltage bulk capacitance and regulator stability.
Jul 2, 2026
CL05B103KB5NNNC 0402 10 nF X7R MLCC Selection Guide
How to choose CL05B103KB5NNNC and related 0402 MLCCs for bypassing, filtering, voltage derating, and sourcing.
Jul 2, 2026
ADAQ7768-1 Design Guide for Precision Vibration and Dynamic Signal Measurement
Design ADAQ7768-1 precision data acquisition channels for vibration and dynamic sensing with the right bandwidth, reference, clock, and layout choices.
Jun 30, 2026
AD5204BRZ10 Design Guide for SPI-Controlled Gain and Offset Calibration
Design AD5204BRZ10 digital potentiometer calibration loops with bounded trim span, safe wiper current, clean SPI routing, and reliable startup codes.
Jun 30, 2026
Why Buy from FindMyChip
About Analog Devices
Analog Devices (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing integrated circuits used in virtually all types of electronic equipment.
More from Analog Devices
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 500+ | $2.1710 | $1085.48 |
| 1000+ | $2.1106 | $2110.58 |
| 2500+ | $2.0468 | $5117.10 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“We've been using FindMyChip for 2 years. Pricing is consistently 20-30% below Mouser/DigiKey for volume orders.”