Description

The SLM6550 is a 2A single cell Li-ion battery charger applied for 5V adapters. It utilizes 1.5MHz synchronous buck converter topology to reduce power dissipation and therefore reaches a high efficiency up to 90%.

The SLM6550 includes complete charge termination circuitry, automatic recharge, and a ±1% 4.35V float voltage. It also has other features include output short-circuit protection, battery temperature monitor, overheating protection, and no blocking diode is required.

The SLM6550 is available in SOP8/MSOP8 package with heat sink. Its few external component count makes the SLM6550 a high-efficient battery charger ideally suited for portable applications.

Features

• ■1.2MHz Fixed Switching Frequency
• ■High Efficiency up to 90%
• ■2.5A Maximum Charge Current
• ■No External MOSFET or Blocking Diode Required
• ■Preset 4.35V Charge Voltage with ±1% Accuracy
• ■Automatic Recharge
• ■Charge State Pairs of Output, No Battery and Fault Status Display
• ■C/10 Charge Termination
• ■140uA Supply Current in Shutdown
• ■2.9V Trickle Charge
• ■Soft-Start Limits Inrush Current
• ■Battery Temperature Monitoring
• ■Short-Circuit Protection
• ■Available in 8-Pin SOP/MSOP Package

Absolute Maximum Ratings

• ■Vcc: -0.3V~8V
• ■BAT: -0.3V~7V
• ■LX： -0.3V~7V
• ■VS： -0.3V~7V
• ■NCHRG： -0.3V~8V
• ■NSTDBY： -0.3V~8V
• ■TS： -0.3V~8V
• ■BAT Short-Circuit Duration: Continuous
• ■Maximum Junction Temperature: 145℃
• ■Operating Temperature Range: -40℃ ~85℃
• ■Storage Temperature Range: -65℃~125℃
• ■Lead Temperature (Soldering, 10 sec) 260℃

Typical Application

Datasheet

SLM6500.pdf