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LM3622 - Lithium-Ion Battery Charger Controller

Download the LM3622 datasheet PDF. This datasheet also covers the LM3 variant, as both devices belong to the same lithium-ion battery charger controller family and are provided as variant models within a single manufacturer datasheet.

General Description

The LM3622 is a charge controller for Lithium-Ion batteries.

This monolithic integrated circuit accurately controls an external pass transistor for precision Lithium-Ion battery charging.

Key Features

  • n Versions for charging of 1 cell (4.1V or 4.2V) or 2 cells (8.2V or 8.4V) n Versions for coke or graphite anode n Precision ( ± 30mV/cell) end-of-charge control n Wide input range: 4.5V-24V n Low battery drain leakage: 200nA n 15 mA available to drive low cost PNP.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (LM3-622.pdf) that lists specifications for multiple related part numbers.

📁 Similar Datasheet

Part Number Description Manufacturer
LM3622 Lithium-Ion Battery Charger Controller Texas Instruments
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LM36272 Two-Channel LCD Backlight Driver Texas Instruments
LM36273 Three-Channel LCD Backlight Driver Texas Instruments
LM36274 Four-Channel LCD Backlight Driver Texas Instruments

Other Datasheets by National Semiconductor (now Texas Instruments)

Part Number Description
LM3620 Lithium-Ion Battery Charger Controller
LM3621 Single Cell Lithium-Ion Battery Charger Controller
LM3625 dual high speed MOS sense amp
LM360 High Speed Differential Comparator
LM361 High Speed Differential Comparators

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
LM3622 Lithium-Ion Battery Charger Controller February 2000 LM3622 Lithium-Ion Battery Charger Controller General Description The LM3622 is a charge controller for Lithium-Ion batteries. This monolithic integrated circuit accurately controls an external pass transistor for precision Lithium-Ion battery charging. The LM3622 provides a constant voltage or constant current (CVCC) configuration that changes, as necessary, to optimally charge lithium-ion battery cells. Voltage charging versions (4.1V, 4.2V, 8.2V, and 8.4V) are available for one or two cell battery packs and for coke or graphite anode battery chemistry. The LM3622 accepts input voltages from 4.5V to 24V. Controller accuracy over temperature is ± 30mV/cell for A grade and ± 50mV/cell for the standard grade.