LT8490IUKJ#PBF

LT8490IUKJ#PBF is the Pb-free, RoHS variant of Analog Devices’ LT8490 battery charger/controller. It’s designed to charge Li‑ion/Li‑polymer cells with PowerPath capability to power the system while charging the battery, suitable for solar or other external inputs.
Key points:
- PowerPath-enabled charger: can supply the system load while charging the battery and protects both source and cell.
- Programmable charging: set charge current and battery voltage with external components; supports preconditioning, taper/termination, and safety protections.
- Protections: overvoltage, undervoltage, overcurrent, thermal, and reverse-polarity protections.
- Simple interface: status/flag signals and programming pins; designed to pair with an external MOSFET/pass element per the reference designs.
- Packaging/ID: IUKJ indicates the specific package variant; PBF denotes Pb-free packaging.
For exact electrical specs, pinout, and application notes, consult the LT8490 datasheet and the product page for the IUKJ#PBF variant.

Here are the typical features of the LT8490IUKJ#PBF (lead-free, RoHS) version:
- Wide input range up to about 60 V, suitable for automotive and solar inputs
- Buck/Boost DC-DC controller topology for battery charging applications
- Current-mode control with cycle-by-cycle current limit
- Programmable charging parameters: charge voltage, charge current, and taper/termination profiles
- Battery temperature sensing input (NTC) for temp-compensated charging
- Protection: UVLO, OVLO, overcurrent, overtemperature; short-circuit protection and thermal shutdown
- Soft-start with programmable preconditioning and efficient operation modes
- Fault/status reporting and diagnostic pins; PWM dimming/control options
- High efficiency across operating range (typical: very high for DC-DC charging)
- Package: IUKJ variant with RoHS-compliant PBF lead-free packaging
Note: Exact current capability, protection thresholds, and pinout depend on the specific schematic and external components used; consult the LT8490 datasheet for precise specifications and design guidelines.

Pb-free 20-pin TSSOP package.

- Pin count: 20 pins (TSSOP-20/VSSOP-20 package variant for LT8490IUKJ#PBF).
- Function: High‑voltage battery charge controller that uses external MOSFETs to implement CC/CV charging (suitable for Li‑ion and similar chemistries), with input up to about 60V and protections/regulation for efficient charging.

Analog Devices, Inc. (the Linear Technology line). Analog Devices is a global American semiconductor company that designs and manufactures analog, mixed-signal, and DSP integrated circuits.

LT8490IUKJ#PBF is a high‑voltage battery‑charger controller. Applications include solar/off‑grid charging systems, Li‑ion/Li‑polymer single‑ and multi‑cell packs, automotive and industrial battery management, renewable energy storage and backup power supplies, portable tools and field equipment chargers, and telecom standby/battery‑backed power modules.