1-Cell Li-ion Battery Protection IC with Built-in Driver for High-side Nch FETs and Temperature Protection

1-Cell Li-ion Battery Protection IC with Built-in Driver for High-side Nch FETs and Temperature Protection

534
Views
0 Comments

RICOH has introduced R5445 Series of 1-Cell Li-ion battery protection IC with built-in driver for high-side Nch FETs and temperature protection. This new IC serves as Li+ / Li-polymer protector of overcharge, over-discharge, and over current for battery pack.

The R5445 Series IC can drive external high-side Nch MOSFETs and provide high-accuracy detection at overcharge and overcurrent, and a high-accuracy charge inhibition for 0V battery. Additionally, it can help reduce the supply current after over-discharge detection to a minimum by stopping the internal circuits. Using the CTL pin can forcefully enter the IC into standby mode.

Key Features of R5445 Series IC

  • 6.5 V Absolute Maximum Rating
  • Typ.5.0 µA Supply Current at Normal Mode
  • Max.0.04 µA Standby Current
  • 4.2 V to 4.6 V (in 0.005 V step, ±10 mV) Overcharge Detection Voltage

These ICs are suitable to be used as high precision protectors for smart-phones or any other electronic gadgets using on-board Li+ / Li polymer battery.

more information: https://www.n-redc.co.jp/en/pdf/datasheet/r5445-ea.pdf

Mike is the founder and editor of Electronics-Lab.com, an electronics engineering community/news and project sharing platform. He studied Electronics and Physics and enjoys everything that has moving electrons and fun. His interests lying on solar cells, microcontrollers and switchmode power supplies. Feel free to reach him for feedback, random tips or just to say hello :-)

view all posts by admin
Subscribe
Notify of
guest
0 Comments
Inline Feedbacks
View all comments
Archives