MC33340EVB

The MC33340EVB is an evaluation board to evaluate MC33340 monolithic control that is specifically designed as fast charge controllers for nickel cadmium (NiCd) and nickel metal hydride (NiMH) batteries. The MC33340 contains many of the building blocks and protection features that are employed in modern high performance battery charger controllers that are specifically designed for nickel cadmium and nickel metal hydride 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 4.0mV 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/under temperature detection
• Battery over and undervoltage fast charge protection
• Power supply input undervoltage lockout with hysteresis
• Operating voltage range from 3.25V to 18V
• 177 seconds fast change hold off time