Description

The SLM4054 is a complete constant-current constant-voltage linear charger for single cell lithium-ion batteries. Its SOT-23-5L package and low external component cout make the SLM4054ideally suited for portable applications. Furthermore, the SLM4054is specifically designed to work within USB power specifications.

Features

• ■Programmable Charge Current Up to 600mA
• ■No MOSFET, Sense Resistor or Blocking Diode Required
• ■Constant-Current/Constant-Voltage Opera-tion with Thermal Regulation
• ■Charges Single Cell Li-Ion Battery Directly from USB Port
• ■Preset 4.2V Charge Voltage with ±1% Accuracy
• ■2.9V Trickle Charge Threshold Available Without Trickle Charge
• ■Soft-Start Limits Inrush Current
• ■RoHS Compliant and 100% Lead (Pb)-Free
• ■SOT-23-5L Package

Absolute Maximum Ratings

• ■Vcc: -0.3V~8V
• ■PROG: VCC+0.3V
• ■BAT: +8V
• ■NCHRG: +10V
• ■BAT Short-Circuit Duration: Continuous
• ■BAT Pin Current: 850mA
• ■PROG Pin Current: 1mA
• ■Maximum Junction Temperature: 125℃
• ■Operating Temperature Range: -65℃ ~125℃
• ■Storage Temperature Range: -40℃~85℃
• ■Lead Temperature（ Soldering, 10 sec）300℃

Typical Application

Datasheet

SLM4054.pdf