1909ETI - Maxim Integrated Products

1909ETI MAX1909ETI

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 rectificati.

Features

±0.5% Accurate Charge Voltage (0°C to +85°C) ±3% Accurate Input Current Limiting ±5% Accurate Charge Current Programmable Charge Current >4A Automatic System Power-Source Selection Analog Inputs Control Charge Current and Charge Voltage Monitor Outputs for Current Drawn from AC Input Source AC Adapter Presence Up to 17.65V (max) Battery Voltage Maximum 28V Input Voltage Greater than 95% Efficiency Charge Any Battery Chemistry: Li+, NiCd, NiMH, Lead Acid, etc. MAX1909/MAX8725 Ordering Information PART MAX1909ETI MAX1909ETI+ MAX8725ETI MAX8725ETI+ +Denotes TEMP RANGE -40°C to +85°C -40°C to +.