LT8490IUKJ#PBF

LT8490IUKJ#PBF is a high-voltage, switch-mode battery charger controller from Analog Devices (formerly Linear Technology). It drives an external MOSFET and inductor to implement a complete charger for single‑cell Li‑ion/Li‑poly, and other chemistries, with wide input range and external components.
Key points:
- Wide input range (high-voltage) and external FET/inductor required
- Programmable charge current and constant‑current/constant‑voltage (CC/CV) regulation with termination
- Preconditioning for deeply discharged cells; temperature sensing (NTC) and safety protections
- Status/fault indicators and typical charger use in solar, automotive, or wall‑adapter designs
- IUKJ and #PBF indicate a specific package variant and Pb‑free/RoHS packaging
Note: Exact electrical specs (max input, charge current, termination, etc.) depend on external R, sense resistor, and configuration. Refer to the LT8490 datasheet for complete details and the packaging guide for IUKJ/PBF specifics.

LT8490IUKJ#PBF features (highlights):
- High-voltage, high-efficiency battery charger controller for Li-ion/Li‑poly packs
- Input range up to 60V; integrated switching regulator with external MOSFETs
- Programmable constant-current/constant-voltage charging with adjustable end voltage and charge current
- Trickle/precharge and support for multi‑cell packs via selectable end‑voltage
- Power-path/load‑sharing to charge battery while powering the system
- End‑of‑charge termination by current/voltage with user‑adjustable thresholds
- Temperature sensing with thermal regulation and shutdown
- Comprehensive safety: UVLO, OVP, OCP, OTP, reverse polarity, short‑circuit protection
- Fault/status outputs and soft‑start for system stability
- Pb‑free packaging (PBF); device code IUKJ indicates package/temperature variant
Note: exact programmable ranges and terminal configurations depend on the specific bailout pins and external components per the datasheet.

- Pin count: 28 pins (QFN package).
- Function: LT8490IUKJ#PBF is a high-efficiency switch‑mode battery charger controller with integrated MOSFETs and power‑path management for Li‑ion/Li‑poly batteries (used for solar/AC adapter inputs and load sharing).

The LT8490IUKJ#PBF is manufactured by Analog Devices, Inc. Analog Devices is a multinational semiconductor company that designs and manufactures high-performance analog, mixed-signal, and DSP integrated circuits (the Linear Technology line is now part of ADI).

LT8490IUKJ#PBF is a high‑current, wide‑input Li‑ion/Li‑polymer battery charger with integrated power-path. Typical applications include:
- Solar/power-harvesting charging systems (PV to Li‑ion packs)
- Standalone/off‑grid battery chargers and energy storage
- UPS, telecom and industrial backup power with seamless charge/load management
- Automotive and rugged environments with wide input sources
- Multi‑cell Li‑ion packs in portable tools and equipment

8-pin MSOP package (3×3 mm), Pb-free. PBF indicates Pb-Free package.