Evaluation Module for Multi Cell Synchronous Notebook Charger and System Power Selector Status: ACTIVE

Product Information

Description

The bq24751A evaluation module is a complete charger module for evaluating a multi cell synchronous notebook charge and path selection solution using the bq24751A devices. It is designed to deliver up to 6A of charge current to Li-Ion or Li-Pol applications. The charge current is programmable by external voltage input.

The bq24751A has a highly integrated battery charge controller designed to work with external host commands. The battery voltage, charge current, input current limit and other system parameters are pin-programmable. The dynamic power management (DPM) function modifies the charge current depending on system load conditions, avoiding ac adapter overload. High accuracy current sense amplifiers enable accurate measurement of the ac adapter current, allowing monitoring of overall system power.

Features

• Evaluation Module For the bq24751A
• High Efficiency NMOS-NMOS Synchronous Buck Charger With 300 kHz Frequency
• Battery/Adapter to System Power Selector Function
• User-Selectable 2-cell, 3-cell or 4-cell Li-ion Battery Voltage
• User-Programmable Battery Regulation Voltage with External Voltage Source (4.2 V/cell by Default)
• User-Programmable Charge Current with External Voltage Source (3 A by Default)
• User-Programmable Input Current Limit with External Voltage Source (4.5 A by Default)
• Pin Programmable Interface for Control and Status Communications with Host
• AC Adapter Operating Range 18 V to 22 V
• Adapter Overcurrent Protection
• ACFET Overpower Protection
• LED Indication for Control and Status Signals
• Test Points for Key Signals Available for Testing Purpose. Easy Probe Hook-up