MAX1909 Description
The MAX1909/MAX8725 highly integrated control ICs simplify construction of accurate and efficient multichemistry battery chargers. The MAX1909/MAX8725 use analog inputs to control charge current and voltage, and can be programmed by a host microcontroller (µC) or hardwired. High efficiency is achieved through use of buck topology with synchronous rectification.
MAX1909 Key Features
- Precise Measurement Improves Safety and
- ±0.5% Accurate Charge Voltage (0°C to +85°C)
- ±3% Accurate Input Current Limiting
- ±5% Accurate Charge Current
- Analog Inputs Control Charge Current and Charge
- Charge Any Battery Chemistry: Li+, NiCd, NiMH
- Up to 17.65V (max) Battery Voltage
- Maximum 28V Input Voltage
- Programmable Charge Current > 4A
- Intelligent AC Adapter Interface Makes Design Easier