双节8.4V锂电池充电IC

双节8.4V锂电池充电IC

双节8.4V锂电池充电IC

The XA4217 is a complete constant-current/ constant voltage linear charger for cell lithium-ion batteries. Its package and low external component count make the XA4217 ideally suited for portable applications. The charge current can be programmed externally with a single resistor. XA4217 determines the charge mode by detecting the battery voltage: Pre-charge, constant current charging, constant voltage charging. The charge current of pre-charging and constant -current charging is adjustable. The XA4217 is monitored by temperature monitor during the constant-current and constant-voltage charging. There are two LEDs indicate the charge mode.

The XA4217 is available in the SOP -8L package (or upon request).

  Features

Preset 8.4V Charge Voltage with 1%

Accuracy

Programmable Charge CurrentUp to 1A

Input Voltage:9-10V DC

Pre-Charging, the Charge Current is adjustable

ldeal for Dual-Cell 08.4V) Li-lon Batteries

Constant -Current Charging, the Charge

Current is adjustable

Constant-Voltage Charging

Constant- Current/Constant-Voltage

Charging with Temperature Monitoring

Automatic Recharge

Double LEDs Charge Status Indication

Available in SOP-8L Package

  Applications

Charger for Li-lon Coin Cell Batteries

Portable MP3 Players, Wireless Headsets

Multifunction Wristwatches

Bluetooth Applications