DESCRIPTION

The AIC1782 fast charge controller is designed for intelligent sequential charging of dual NiMH and NiCd batteries without the risk of malfunction. After powered on, the AIC1782 charging sequence gives priority to battery pack A, represented by input signals of ATS and ABV pins, over battery pack B, represented by BTS and BBV pin signals.

FEATURES

• Quick and Easy Testing for Production.

• Sequential Charging Control of Two NiMH/NiCd Battery Packs.

• Reliable Sequential Fast Charge Control of Dual NiMH and/or NiCd Battery Packs, even with a Fluctuating Charging Current.

• Fast Charge Termination by: ∆ ∆ T / t, −∆V, 0 V ∆ , Safety Timer, Maximum Temperature, Maximum Voltage.

• Safety Timer and ∆ ∆ T / t Detection Slope Linearly Adjustable.

• Battery Voltage Protection Range Selectable.

• Mode of Battery Temperature Protection Selectable.

• Protection against Battery Voltage and Battery Temperature Faults.

• Selectable LED Display Mode for Battery Status.

• Five Pulsed Trickle Charge Modes.

• Discharge-before-Charge Function Available to Eliminate Memory Effect.

• 20-pin DIP or SO Packages.

APPLICATIONS

Dual-Battery Fast Chargers for:

• Mobile Phones.

• Notebook and Laptop Personal Computers.

• Portable Power Tools and Toys.

• Portable Communication Equipments.

• Portable Video & Stereo Equipments.