• X(Twitter)
  • Youtube
  • Linkedin
  • Newsletter

R5471 Series
High Accuracy 1-Cell Li-ion Battery Protection IC

ECAD Model: Learn more
  • RoHS
Package1
拡大
:q Package1
Package1
Package1

Description

The R5471 is high voltage CMOS-based protection ICs for over-charge/discharge of rechargeable one-cell Lithium-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, reference units, a delay circuit, a short circuit protector, an oscillator, a counter, and logic circuits.

Spec

Operating Input Voltage 1.5 V to 5.0 V (Maximum Rating: 12 V)
Charger Negative Input Voltage -30 V
Number of Cells 1
Supply Current Typ. 4.0 µA
Standby Current Typ. 0.1 µA
Overcharge Detection Voltage 4.1 V to 4.5 V
Overcharge Detection Voltage Accuracy ±10 mV
Overcharge Detection Delay Time 1 s
Overdischarge Detection Voltage 2.0 V to 3.0 V
Overdischarge Detection Voltage Accuracy ±2.5%
Overdischarge Detection Delay Time 20 ms
Discharge Overcurrent Detection Voltage 0.05 V to 0.13 V
Discharge Overcurrent Detection Voltage Accuracy ±10 mV
Discharge Overcurrent Detection Delay Time 36 ms
Charge Overcurrent Detection Voltage -0.17 V to -0.05 V
Charge Overcurrent Detection Voltage Accuracy ±20 mV
Charge Overcurrent Detection Delay Time 16 ms
Short Detection Voltage 0.35 V
Short Detection Delay Time 600 µs
Conditions for Overcharge Restoration Latch
Conditions for Overdischarge Restoration Latch
Package DFN1814-6
0 V Charge Optional

Protections / Functions

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

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 "Protecting Li-ion Batteries: Functions and Advantages".

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 "Protecting Li-ion Batteries: Functions and 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

Technical Documents

  • Typical Application

    Typical Application

Quality & Packages

Product Name Compatibility Package Marking Reliability
R5471Lxxxxx-TR
  • gradeConsumer
 DFN1814-6 R5471L R5471L
  • Refer to the datasheets for the details on the product.
  • The package file or the datasheet includes package dimensions, taping specifications, taping reels dimensions, power dissipations, and recommended land pattern.

FAQ

See all FAQs

Buy / Contact

  • Purchase, Request for samples and documents
    Sales are made through distributors. Please contact your local distributors for any sales-related inquiry such as price.
  • Available from 1 piece!
    Our electronic device products are available through our authorized online distributors.
  • Technical Support
R5471 Series