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R5405 Series

1-Cell Li-ion Battery Protection IC

  • RoHS

R5405 Series are high input voltage CMOS-based protection ICs for over-charge/discharge of rechargeable one-cell Lithium-ion (Li-ion) / Lithium polymer excess load current, further include a short circuit protector for preventing large external short circuit current and excess charge/discharge-current. Each of these ICs is composed of four voltage detectors, a reference unit, a delay circuit, a short circuit protector, an oscillator, a counter, and a logic circuit. In addition to SOT-23-6 packages, DFN(PLP)1616-6 and DFN1814-6 are also available.

Specs & Datasheets

Operating Input Voltage 1.5 V to 5.0 V (Maximum Rating: 12 V)
Charger Negative Input Voltage -30 V (Maximum Rating)
Number of Cells 1
Supply Current Typ. 4.0 µA
Standby Current Max. 0.1 µA (Ver. C,E,G)
Typ. 1.2 µA (Ver. D,F)
Overcharge Detection Voltage 4.0 V to 4.5 V (0.005 V Steps)
Overcharge Detection Voltage Accuracy ±25 mV
Overcharge Detection Delay Time 1.0 s
Overdischarge Detection Voltage 2.0 V to 3.0 V (0.100 V Steps)
Overdischarge Detection Voltage Accuracy ±2.5%
Overdischarge Detection Delay Time 20 ms
Discharge Overcurrent Detection Voltage 0.05 V to 0.20 V (0.005 V Steps)
Discharge Overcurrent Detection Voltage Accuracy ±15 mV
Discharge Overcurrent Detection Delay Time 6 ms, 12 ms, 18 ms
Charge Overcurrent Detection Voltage -0.20 V to -0.05 V (0.005 V Steps)
Charge Overcurrent Detection Voltage Accuracy ±30 mV
Charge Overcurrent Detection Delay Time 8 ms, 16 ms
Short Detection Voltage 0.8 V
Short Detection Delay Time 200 µs, 300 µs, 400 µs
Conditions for Overcharge Restoration Latch or Auto Release
Conditions for Overdischarge Restoration Latch / Voltage Release
Package SOT-23-6, DFN(PLP)1616-6, DFN1814-6
0V-battery Charge Option Available / Unavailable

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
DFN(PLP)1616-6 R5405K R5405K
  • gradeConsumerC
DFN1814-6 R5405L R5405L
  • gradeConsumerC
SOT-23-6 R5405N R5405N-FE

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 Short-circuit Current Detection,Delay Time Shortening