Teknik Özellikler
MAX17049G+T10 is a micropower 2-series Li-ion battery fuel gauge IC from Analog Devices (Maxim Integrated). The suffix T10 represents tape-and-reel bulk packaging for automated SMT assembly. Equipped with proprietary ModelGauge™ algorithm, it realizes accurate battery state-of-charge (SOC) detection without sense resistors or battery full-empty calibration, optimized for dual-cell lithium-powered portable and industrial battery equipmentAnalog Devices.
MAX17049G+T10 Package
8-WFDFN Outline
👉 It differs from single-cell MAX17048 counterpart. MAX17049 supports two Li-ion cells in series, with per-cell ±7.5mV high-precision voltage sampling, ultra-low hibernate power consumption and flexible interrupt alert functions, greatly simplifying dual-cell battery management circuit design.
Temel Özellikler
- Proprietary ModelGauge™ Fuel Gauge Core
- No current-sense resistor required; no mandatory battery full-to-empty learning cycle
- Fusion of voltage-model and coulomb-counting logic, no cumulative offset error
- Automatically calculates SOC, battery voltage, charge/discharge rate for host MCU reading
- Battery insertion 16-sample voltage debounce for stable initial SOC estimation after battery replacement
- Supports programmable reset threshold (2.28V ~ 3.48V) for hot-swap battery systems
- Ultra-Low Power Consumption
- Active operating current: 23µA typical
- Auto-trigger hibernate mode under light load, only 3µA standby while maintaining accurate gauging
- Auto wake-up when battery charge/discharge current rises, no extra MCU control logic needed
- Minimizes quiescent drain to extend lithium battery service life
- High-Precision Dual-Cell Voltage Monitoring
- ±7.5mV per cell measurement accuracy for dual-series Li-ion packs
- Real-time per-cell voltage readback via I²C bus
- Multi-type configurable hardware alert interrupt:
- Low SOC warning
- SOC 1% abrupt change trigger
- Battery overvoltage / undervoltage protection alert
- Battery reset threshold crossing flag
- I²C Communication & Built-In Resources
- Standard 400kHz Fast-Mode I²C two-wire interface, compatible with all 3.3V embedded MCUs
- 8-bit factory programmable OTP ID register for device batch traceability
- Outputs real-time battery voltage, remaining capacity percentage and charge/discharge rate registers
- Package & Environmental Specifications
- Package: 8-pin WFDFN (TDFN-EP), compact 2mm × 2mm footprint with exposed thermal pad
- Operating temperature grade: Commercial -20°C ~ +70°C
- MSL 1 unlimited floor life, lead-free, halogen-free, fully RoHS compliant
- Suffix +T10 = tape-and-reel packaging for mass-volume SMT production lines
Tipik Uygulamalar
Dual-cell lithium handheld industrial test & measurement instruments
Portable medical diagnostic devices powered by 2S Li-ion packs
High-end smart cameras, action cam and portable video equipment
2S battery wireless speakers, Bluetooth portable audio terminals
Wearable sports equipment, high-capacity smartwatch power management
Field environmental wireless data loggers with dual lithium battery packs
Handheld barcode scanners, portable industrial access control terminals
Small robotics, mini UAV auxiliary dual-cell battery monitoring
Portable charging power bank dual-cell SOC detection modules
Education embedded development board 2S lithium battery demonstration systems
LXB Semicon supplies original Analog Devices MAX17049G+T10 micropower 2-series Li-ion ModelGauge fuel gauge IC
