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MinebeaMitsumi Inc. (hereinafter “MinebeaMitsumi”) has developed a lithium-ion battery protection IC, MQC860, which maximizes the quick-charging performance of smartphones. MQC860 can complement the performance of the charging system for Qualcomm® Snapdragon™ mobile platforms.
Recent products powered by lithium-ion batteries, especially smartphones, increasingly have a larger battery capacity, and it takes longer to charge the batteries with the current charging system. This increases needs for a system that is capable of quick charging. To respond to such market needs and to complement the performance of charging system and battery fuel gauge systems, we have developed a product that can accurately monitor cell voltage by adding a cell voltage monitoring terminal to a battery protection IC.
MinebeaMitsumi is the world’s leading supplier of 1-cell lithium-ion battery protection IC and MQC857 that we developed in 2018, and is the first product compatible with Qualcomm® Quick Charge™ technology, currently used for many high-end smartphones.
Though most smartphones used to use one lithium-ion battery (1-cell) before, more smartphones use two lithium-ion batteries (2-cell) to shorten the charging time. By using core technology applied to MQC860 series, we are also developing next-generation products, scheduled to be released in 2021, which support 2-cell products (MQC883) to complement Quick Charge 5 technology released by Qualcomm Technologies, Inc. in July 2020.
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Features Overview
i) MQC860 is an upgrade product of the first generation product, MQC857.
ii) Impedance of cell voltage monitor terminal reduced to 100 Ω or less
iii) Built-in temperature protection function by NTC thermistor
Main Applications
i) Smartphones and tablets
ii) Other mobile devices
Features of MQC860
Overcharge detection voltage: 4.1 to 5. 0V (5mV step), ±20mV accuracy
Overdischarge detection voltage: 2.1 to 3. 0V (50mV step), ±35mV accuracy
Discharge over-current detection voltage 1: 6mV – 50mV (1mV step), ±1.0mV accuracy
Discharge over-current detection voltage 2: 15 mV – 100mV (1mV step), ±2.0mV accuracy
Charge over-current detection voltage: -50mV to- -6mV (1mV step), ±1.0mV accuracy
Short-circuit detection voltage: 30 – 200mV (10mV step), ±5.0mV accuracy
Package: SSON-8K or 8L
External Dimensions: 1.6mm × 1.6mm × 0.4mm (W×D×H)
MQC860 Production Plan
Mass production start: March 2021
Mass production volume: 5 million pcs / month
Production site: Japan (Chitose Plant, Mitsumi Electric)
Sample price: 50 yen (excluding tax)/pcs
Product Photos
![](https://www.nmb-minebea.fr/wp-content/uploads/2021/01/Japan_Battery_Protection_MQC860-_2_-1024x689.png)
Products inquiries: Strategy Engineering Department, Semiconductor Business Unit, MITSUMI Business Headquarters MinebeaMitsumi Inc.
Phone: +81-(0)46-230-3470
Media inquiries:Corporate Communications and Investor Relations Office MinebeaMitsumi Inc.
Phone: +81-(0)3-6758-6703
Mail: koffice@minebeamitsumi.com
* Qualcomm, Quick Charge and Snapdragon are trademarks or registered trademarks of Qualcomm Incorporated.
* Qualcomm Snapdragon and Qualcomm Quick Charge are products of Qualcomm Technologies, Inc. and/or its subsidiaries.