DS2715 - Dallas Semiconducotr

DS2715 NiMH Battery Pack Charge Controller

The DS2715 is well suited for cost-sensitive charger applications where the battery is either internal or in a unique battery pack. It has been optimized for safe reliable charging of 1 to10 NiMH cells in series. The DS2715 has an internal gain block that can be selected as either a comparator or transconductance amplifier for charge current regulation. The .

Features

§ § § § § § § § § Charges 1 to 10 NiMH Cells Fast Charges up to a 2C Rate Pre-Charge and Top-Off Charge Modes Help Cell Conditioning Load Detection Allows the DS2715 to Enter Low Power Sleep Mode (Less than 10µA) while the Cell Pack is Discharged dT/dt Charge Termination Eliminates Cell Charge Stress Monitors Voltage, Temperature, and Time for Safety and Secondary Termination Regulates Current through Either Linear Control or Switch-Mode Control LED Outputs Display Charge State Small 16-Pin SO Package + Denotes lead-free package. OPERATIONAL DIAGRAM CHARGE SOURCE/LOAD Vch Vdd Vbatt Divide b.