مدار مجتمع (آی سی) آی‌سی مدیریت توان (پی‌ام‌آی‌سی) مدیریت باتری (بی‌ام‌اس)

Product Attributes

Introduction

The DS6521 series is a highly integrated linear charger component for lithium-ion and lithium-polymer batteries, designed for portable electronic applications where space is constrained. Battery charging proceeds in three stages: conditioning, constant current, and constant voltage. Throughout all charging stages, an internal control loop monitors the charger temperature and reduces the charging current when the internal temperature threshold is exceeded.

The charger integrates power components with programmable charging current capability, featuring high-accuracy current and voltage regulation loops, charge status indication, and charge termination functionality.

The fast-charge current can be programmed via an external resistor.

Features

• 28V input rating; with 6V input overvoltage protection
• 1% charge voltage accuracy
• Programmable charge current 50mA to 1A
• 125°C charge current auto-adjustment
• Programmable charge termination current 5mA to 100mA
• Pre-charge current fixed at ISET / 10
• JEITA-compliant charge profile via battery NTC
• 0.1uA ultra-low battery leakage current
• Reverse battery protection
• Available in SOT-23-6 & ESOP-8 & DFN2x2-10L & DFN2x3-10L & DFN3x3-10L packages

Applications

• Handheld, battery-powered devices
• Laptops, palmtops, and PDAs
• Smartphones
• MP3 players
• Low-power handheld devices
• TWS Bluetooth earbuds
• E-cigarettes
• Dash cams
• Electric toothbrushes