GR5300AA

GR5300 Monitor and Timing Management for Single-Loop NiMH Battery Charger Features ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● Description The GR5300 is ideal for standalone charging of 1 to multiple AA or AAA NiMH “loose” cells. NiCd cells can also be charged. Temperature, voltage and charge time are monitored to provide proper fast/slow charging control algorithms for Nickel Metal Hydride (NiMH) batteries. The GR5300 detects the battery chemistry and proceeds with the optimal charging and termination algorithms. This process eliminates undesirable undercharged or Detects and avoids charging alkaline cells Monitors voltage, temperature and time for safety and secondary termination Drivers PNP type pass element Pre-charge qualification for detecting shorted, damaged, or deeply depleted cells Automatic recharge keeps batteries charged Optional temperature qualified charging Applications Portable computer, cellular phone and PDA Charging docks and cradles Portable consumer electronics Desktop/standalone charger (AAA/AA) Digital still camera Music player (MP3) Game Toy Emergency lights overcharged conditions and allows accurate and safe termination of fast/slow charge. Battery tests are included to detect defective or inappropriate cells such as Alkaline primary batteries. The GR5300 supports a parallel charging topology. The GR5300AA supports one loop single cell charging topology, with monitoring and controls of cell. The GR5300DA supports one loop two parallel cells charging topology,...