Battery Protection IC for
1-Cell Lithium-Ion with
Integrated Power MOSFET
LC05111CMT
Overview
The LC05111CMT is a protection IC for 1−cell lithium−ion
secondary batteries with integrated power MOSFET. Also it integrates
highly accurate detection circuits and detection delay circuits to
prevent batteries from over−charging, over−discharging, over−current
discharging and over−current charging.
A battery protection system can be made by only LC05111CMT and
few external parts.
Features
• Charge−and−discharge Power MOSFET are Integrated at
Ta = 25_C, VCC = 4.5 V
♦ ON Resistance (total of charge and discharge) 11.2 mW (typ)
• Highly Accurate Detection Voltage/Current at Ta = 25°C, VCC = 3.7 V
♦ Over−charge Detection
±25 mV
♦ Over−discharge Detection
±50 mV
♦ Charge Over−current Detection ±0.7 A
♦ Discharge Over−current Detection ±0.7 A
• Delay Time for Detection and Release (fixed internally)
• Discharge/Charge Over−current Detection is Compensated for
Temperature Dependency of Power FET
• 0 V Battery Charging
: “Permission”
• Auto Wake−up Function Battery Charging: “Permission”
• Over Charge Detection Voltage : 4.0 V to 4.5 V (5 mV steps)
• Over Charge Release Hysteresis : 0 V to 0.3 V (100 mV steps)
• Over Discharge Detection Voltage : 2.2 V to 2.7 V (50 mV steps)
• Over Discharge Release Hysteresis at Auto Wake−up : 0 V to 0.6 V
(200 mV steps)
• Over Discharge Release Hysteresis : 0 V to 0.075 V (25 mV steps)
• Discharge Over Current Detection : 2.0 A to 8.0 A (0.5 A steps)
• Charge Over Current Detection : −8.0 A to −2.0 A (0.5 A steps)
Typical Applications
• Lithium Ion Battery Protection
www.onsemi.com
WDFN6 2.6x4.0, 0.65P,
DUAL FLAG
CASE 511BZ
MARKING DIAGRAM
XXXXX
AYWWG
XXXXX = Specific Device Code
A
= Assembly Location
Y
= Year
WW = Work Week
G
= Pb−Free Package
(Note: Microdot may be in either location)
*This information is generic. Please refer to
device data sheet for actual part marking.
ORDERING INFORMATION
See detailed ordering and shipping information on page 15 of
this data sheet.
© Semiconductor Components Industries, LLC, 2017
1
September, 2019 − Rev. 13
Publication Order Number:
LC05111CMT/D