Battery Fast Charge Controllers

The MC33340 and MC33342 are monolithic control IC’s that are specifically designed as fast charge controllers for Nickel Cadmium (NiCd) and Nickel Metal Hydride (NiMH) batteries. These devices feature negative slope voltage detection as the primary means for fast charge termination. Accurate detection is ensured by an output that momentarily interrupts the charge current for precise voltage sampling. An additional secondary backup termination method can be selected that consists of either a programmable time or temperature limit.

• Negative Slope Voltage Detection with 4.0 mV Sensitivity

• Accurate Zero Current Battery Voltage Sensing

• High Noise Immunity with Synchronous VFC/Logic

• Programmable 1 to 4 Hour Fast Charge Time Limit

• Programmable Over/Undertemperature Detection

• Battery Over and Undervoltage Fast Charge Protection

• Power Supply Input Undervoltage Lockout with Hysteresis

• Operating Voltage Range of 3.25 V to 18 V

• 177 seconds Fast Change Holdoff Time (MC33340)

• 708 seconds Fast Change Holdoff Time (MC33342)

• Pb−Free Packages are Available

MC33342属于集成电路（IC） > 电池充电器。安森美半导体公司制造生产的MC33342电池充电器电池充电器 PMIC（电源管理集成电路）是元器件级产品系列，用于在电子设备中实现电池充电控制和充电管理功能。这些器件主要根据电池化学及其设计用于的电池数量来分类，可提供电化学电池和超级电容器安全充电所必需的电流或电压调节和监视功能。