Description

The SLM4900 is a complete constant-current constant-voltage linear charger for single cell lithium-ion batteries. Its SOT-23-6L package and low external component count make the SLM4900 ideally suited for portable applications.Furthermore,the SLM4900 is specifically designed to work within USB power specifications.

Features

• ■Programmable Charge Current Up to 800mA
• ■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
• ■Battery Reversal Protection
• ■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

Absolute Maximum Ratings

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

Typical Application

Datasheet

SLM4900.pdf