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R5611 Series

1-Cell Li-ion Battery Protection IC with High-accuracy Overcurrent Detection, Reset Signal

  • RoHS

The R5611 is a one-cell Li- ion / polymer battery protection IC provides an overcurrent detection with using an external resistor. An external FET can be switched ON / OFF by the reset signal of RST. The discharge overcurrent can be detected with high-accuracy of ±3.0 mV (-20°C ≤ Ta ≤ 60°C).

Specs & Datasheets

Operating Input Voltage 1.5 V to 5.0 V (Absolute Maximum Rating 12 V)
Number of Cells 1
Supply Current Typ. 3.0 µA
Max. 6 µA
Standby Current Max. 0.5 µA
Overcharge Detection Voltage 4.430 V to 4.495 V (0.005 V step)
Overcharge Detection Voltage Accuracy ±20 mV
Overcharge Detection Delay Time 1.0 s
Overcharge Restoration Voltage 4.030 V to 4.495 V (0.005 V step)
Overdischarge Detection Voltage 2.1 V to 3.0 V (0.050 V step)
Overdischarge Detection Voltage Accuracy ±55 mV
Overdischarge Detection Delay Time 64 ms
Discharge Overcurrent Detection Voltage 0.015 V to 0.025 V (0.001 V step)
Discharge Overcurrent Detection Voltage Accuracy ±3 mV
Discharge Overcurrent Detection Delay Time 4096 ms
Charge Overcurrent Detection Voltage -0.024 V to -0.017 V (0.001 V step)
Charge Overcurrent Detection Voltage Accuracy ±3 mV
Charge Overcurrent Detection Delay Time 17 ms
Short Detection Voltage 0.055 V to 0.200 V (0.010 V step)
Short Detection Voltage Accuracy ±20 mV
Short Detection Delay Time 280 µs
Conditions for Overcharge Restoration Voltage Release
Conditions for Overdischarge Restoration Voltage Release
Package DFN1616-8
0 V Charge Available
Reset Detection/Release Voltage 1.2 V ±0.3 V
Reset Detection Delay Time 50 ms

Download Datasheet

Protections / Functions

Functional Description

Temperature Protection Reset Alarm Cell Balance Cascadable Open Wire Detection Wakeup Short-circuit Current Detection Delay Time Shortening

Technical Documents

Typical Application

Typical Application

Quality & Packages

Product Name Compatibility Package Marking Reliability
  • gradeConsumerC
DFN1616-8 R5611L R5611L

Refer to the datasheets for the details on the product.
The package file includes package dimensions, taping specifications, taping reels dimensions, power dissipations, and recommended land pattern.
Please contact us or our distributors for unpublished reliability information.

Sample / Buy

Functional Description

Temperature Protection Temperature Protection
Reset Reset Function
Alarm Alarm Function
Cell Balance Cell Balance Function
Cascadable Cascade Connect Function
Open Wire Detection Open Wire Detect Function
Wakeup Wakeup Function
Short-circuit Current Detection Short-circuit Current Protection
Delay Time Shorting Output Delay Time Short Function

For more details, please refer to "Externally Configurable Protections and Their Advantages".

Search for similar products under conditions below.

Category:Lithium-ion Battery Protection ICs

Features Battery Protection
Cell 1
Functions Reset,Short-circuit Current Detection,Delay Time Shortening