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R5441 Series

1-Cell Li-ion Battery Protection IC with Temperature Protection

  • RoHS

The R5441 is one-cell Li-ion / polymer battery protection IC provides overcharge, overdischarge, discharge / charge overcurrent, and temperature detections. One of the features of this device is a high-accuracy detection at overcharge and overcurrent. The supply current after overdischarge detection can be reduced to a minimum by stopping the internal circuits. The small WLCSP package is available.

Specs & Datasheets

   
Operating Input Voltage 1.5 V to 5.0 V (Maximum Rating: 12 V)
Number of Cells 1
Supply Current Typ. 3.5 µA
Standby Current Typ. 0.04 µA
Overcharge Detection Voltage 4.2 V to 4.6 V (0.005 V step)
Overcharge Detection Voltage Accuracy ±10 mV (0°C ≤ Ta ≤ 50°C)
Overcharge Detection Delay Time 1.0 s
Overdischarge Detection Voltage 2.0 V to 3.4 V (0.005 V step)
Overdischarge Detection Voltage Accuracy ±2.0%
Overdischarge Detection Delay Time 16 ms, 32 ms, 128 ms
Discharge Overcurrent Detection Voltage 0.015 V to 0.150 V
(0.015 V to 0.050 V: 0.001 V step)
(0.050 V to 0.150 V: 0.005 V step)
Discharge Overcurrent Detection Voltage Accuracy ±3 mV (0.015 V to 0.030 V)
±10% (0.030 V to 0.050 V)
±5 mV (0.050 V to 0.150 V)
Discharge Overcurrent Detection Delay Time 8 ms, 16 ms, 32 ms, 128 ms, 256 ms, 512 ms, 1024 ms, 3072 ms
Charge Overcurrent Detection Voltage -0.150 V to -0.015 V
(-0.030 V to -0.015 V: 0.001 V step)
(-0.150 V to -0.030 V: 0.005 V step)
Charge Overcurrent Detection Voltage Accuracy ±4 mV (-0.020 V to -0.015 V)
±20% (-0.040 V to -0.020 V)
±8 mV (-0.150 V to -0.040 V)
Charge Overcurrent Detection Delay Time 8 ms
Short Detection Voltage 0.040 V to 0.280 V (5 mV step)
Short Detection Voltage Accuracy ±5 mV
Short Detection Delay Time 280 µs
Conditions for Overcharge Restoration Latch
Conditions for Overdischarge Restoration Latch
Package WLCSP-8-P2
0 V Charge Optional

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
R5441Zxxxxx-E2-F
  • gradeConsumerC
WLCSP-8-P2 R5441Z R5441Z-F

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 Temperature Protection,Short-circuit Current Detection,Delay Time Shortening