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SGM4054 - Standalone Linear Li-Ion Battery SGM4054 Charger

General Description

The SGM4054 is a complete constant-current/constantvoltage linear charger for single cell lithium-ion batteries.

Its SOT23-5 small package and low external component count make the SGM4054 ideally suited for portable applications.

Key Features

  • include charge current monitor, undervoltage lockout, automatic recharge and a status pin to indicate charge termination and the presence of an input voltage. The SGM4054 has lead (Pb) free SOT23-5 package and is rated over the -40°C to +85°C temperature range.

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Datasheet Details

Part number SGM4054
Manufacturer SG Micro
File Size 378.58 KB
Description Standalone Linear Li-Ion Battery SGM4054 Charger
Datasheet download datasheet SGM4054 Datasheet

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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.

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SGM4054 Preliminary Data Sheet Standalone Linear Li-Ion Battery Charger with Thermal Regulation GENERAL DESCRIPTION The SGM4054 is a complete constant-current/constantvoltage linear charger for single cell lithium-ion batteries. Its SOT23-5 small package and low external component count make the SGM4054 ideally suited for portable applications. Besides wall adapter’s 5V power supply, the SGM4054 is specifically designed to work within USB power specifications. SGM4054 is high integrated charger, there is no external current sense resistor and MOSFET, and no Blocking diode is required due to the internal MOSFET architecture. Thermal feedback regulates the charge current to limit the die temperature during high power operation or high ambient temperature. The charge voltage is fixed at 4.