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

Product Attributes

Introduction

LGS550X 5V PD 9V 12V 2/3/4-cell wide input range 3.0V - 12.3V, maximum continuous charge current up to 2A, fully integrated power MOSFET with internal 650kHz switching frequency and comprehensive protection features, supporting trickle, constant current, and constant voltage charging for series-connected battery packs. It also features programmable input voltage threshold adaptive input current limiting, requires no external power MOSFETs or Schottky diodes, minimal peripheral components, and achieves charging efficiency exceeding 90%.

Features

• Fixed charging current up to 2A (limited by actual thermal dissipation and input power)
• Supports 8.4V/12.6V/16.8V (other battery types require customization: 7.3V, 8.8V)
• Input overvoltage protection up to 28V
• Battery terminal overvoltage protection up to 28V
• 3.0V - 6.3V/9.3V/12.3V
• Peak efficiency up to 96%, heavy-load efficiency up to 90%
• Thermal regulation of charging current up to 110°C
• Complete charge status indication with single/dual LED selection
• ESOP8
• Adaptive input current limiting with maximum power tracking via input voltage regulation, compatible with various adapters
• Input protection: input undervoltage lockout, input overvoltage protection
• Battery terminal protection: short-circuit protection, overvoltage protection
• Overtemperature protection at 160°C
• Hot-swap charging support for battery packs with integrated NTC resistors

Applications

• Power bank
• MP3
• MP4
• PSP
• NDS
• Smart door lock