TEXAS INSTRUMENTS  UC3906DW  Battery Charger Lead Acid battery, 40V input, 2A charge, SOIC-16

Technical Data Sheet (10.04KB) EN See all Technical Docs

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Product Overview

The UC3906DW is a Battery Charger Controller contains all of the necessary circuitry to optimally control the charge and hold cycle for sealed lead-acid batteries. These integrated circuits monitor and control both the output voltage and current of the charger through three separate charge states; a high current bulk-charge state, a controlled over-charge and a precision float-charge, or standby, state. Optimum charging conditions are maintained over an extended temperature range with an internal reference that tracks the nominal temperature characteristics of the lead-acid cell. A typical standby supply current requirement of only 1.6mA allows these ICs to predictably monitor ambient temperatures. Separate voltage loop and current limit amplifiers regulate the output voltage and current levels in the charger by controlling the on board driver. The driver will supply up to 25mA of base drive to an external pass device.
  • Optimum control for maximum battery capacity and life
  • Internal state logic provides three charge states
  • Precision reference tracks battery requirements over temperature
  • Controls both voltage and current at charger output
  • System interface functions
  • Typical standby supply current of only 1.6mA
  • Green product and no Sb/Br

Product Information

Battery Type:
Lead Acid
Input Voltage:
Battery Charge Voltage:
Charge Current Max:
Battery IC Case Style:
No. of Pins:
No. of Series Cells:
Operating Temperature Min:
Operating Temperature Max:
Product Range:
MSL 2 - 1 year
No SVHC (15-Jun-2015)

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  • Power Management

Legislation and Environmental

Moisture Sensitivity Level:
MSL 2 - 1 year
Country of Origin:

Country in which last significant manufacturing process was carried out

RoHS Compliant:
Tariff No:
Weight (kg):

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