MAX17224ENT+T

MAX17224ENT+T is Maxim Integrated’s single‑cell Li‑ion battery fuel gauge/monitor IC. The ENT suffix denotes extended temperature operation, and +T indicates tape‑and‑reel packaging.
Key points:
- Provides coulomb counting, voltage/temperature sensing, and state‑of‑charge estimation (SOC) for a single-cell Li‑ion battery.
- I2C/SMBus compatible digital interface for host MCU, with programmable alerts/interrupts.
- Monitors pack health and remaining capacity, helping to optimize battery life and safety.
- Designed for portable devices (wearables, handhelds, IoT sensors, medical/devices) that require accurate fuel gauging with minimal external components.
Design notes:
- Typically used with a sense resistor to measure current.
- Check datasheet for exact electrical specs, pinout, and recommended application circuit.
- ENT+T packaging suited for industrial/edge environments; verify packaging options in the ordering guide.
For detailed features, electrical specs, and implementation, refer to the MAX17224 datasheet and product page.

Here are key features of the MAX17224ENT+T (battery fuel gauge IC for single-cell Li‑ion packs):
- ModelGauge-based SOC and remaining capacity with auto-learning for accurate estimation
- I2C-compatible serial interface for easy host MCU communication
- Coulomb counting with programmable update rate
- Measures pack voltage, current (via external sense resistor), and temperature
- Programmable alerts/interrupts for SOC, voltage, and temperature thresholds
- Low quiescent current with wake/sleep modes for long standby
- Wide operating range ~2.7–4.5 V (single-cell Li‑ion); T-range typically -40°C to +85°C
- Small RoHS/lead-free package (ENT+T) suitable for compact devices
- Suitable for portable/mobile applications requiring reliable battery fuel gauging and status feedback

The MAX17224ENT+T is supplied in a 10-pin, 3 mm × 3 mm thin DFN (TDFN) package with an exposed thermal pad. The “+T” denotes tape-and-reel shipping.

Manufacturer: Maxim Integrated (now part of Analog Devices, Inc.).
What kind of company: a semiconductor firm that designs and supplies analog and mixed‑signal integrated circuits — notably power‑management ICs, battery fuel gauges, sensors, interface ICs and related components for consumer, industrial, communications and automotive markets.

Applications of MAX17224ENT+T:
- Portable battery-powered devices (single/dual-cell Li‑ion) needing high-efficiency buck/boost regulation
- Energy-harvesting and solar-powered systems requiring efficient power conversion
- Embedded IoT sensors and wearables with compact PMIC power management
- USB-powered peripherals and adapters
- Lightweight industrial/medical electronics demanding compact, efficient DC‑DC regulation