AT1457 - Aimtron Technology

AT1457 1-CELL LITHIUM AND LITHIUM POLYMER CHARGE MANAGEMENT IC

The AT1457 series Lithium-Ion (Li-Ion) and Lithium-Polymer (Li-Pol) linear charge ICs are designed for cost-sensitive and compact portable electronics. They combine high-accuracy current and voltage regulation, battery conditioning, temperature monitoring, charge termination, and charge-status indication in a single 8-pin IC. MSOP package options are offered.

Features

• Ideal for Single-Cell (4.1 V or 4.2 V) and Li-Ion or Li-Pol Packs
• Better Than ±1% Voltage Regulation Accuracy With Preset Voltages
• Optional Cell-Temperature Monitoring Before and During Charge
• Integrated Voltage and Current Regulation With Programmable Charge-Current and High or Low-Side Current Sensing
• Charge Status Output for Single or Dual Led or Host Processor Interface
• Automatic Battery-Recharge Feature
• Charge Termination by Minimum Current
• Automatic Low-Power Sleep Mode When VCC is Removed
•Requires Small Number of External Components
• Packaging: 8-Pin MSOP General Desc.