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MAX1909 - Multichemistry Battery Charger

This page provides the datasheet information for the MAX1909, a member of the MAX8725 Multichemistry Battery Charger family.

Datasheet Summary

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.

Features

  • Precise Measurement Improves Safety and Performance.
  • ±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 Voltage.
  • Charge Any Battery Chemistry: Li+, NiCd, NiMH, Lead Acid, etc.
  • Up to 17.65V (max) Battery Voltage.
  • Maximum 28V Input Voltage.
  • Programmable Charge Current > 4A.
  • Intelligent AC Adapter Int.

📥 Download Datasheet

Datasheet preview – MAX1909

Datasheet Details

Part number MAX1909
Manufacturer Maxim Integrated Products
File Size 403.95 KB
Description Multichemistry Battery Charger
Datasheet download datasheet MAX1909 Datasheet
Additional preview pages of the MAX1909 datasheet.

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Full PDF Text Transcription

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MAX1909/MAX8725 EVALUATION KIT AVAILABLE Multichemistry Battery Chargers with Automatic System Power Selector General 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. The maximum current drawn from the AC adapter is programmable to avoid overloading the AC adapter when supplying the load and the battery charger simultaneously.
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