High Accuracy 2-Cell Li-ion Battery Protection IC
The R5462 Series are high voltage CMOS-based protection ICs for over-charge/discharge of rechargeable two-cell Li-ion/Lithium polymer, further include a short protection for preventing large external short circuit current and the protection circuits against the excess discharge-current and excess charge current. Each of these ICs is composed of six detectors, a temperature detector, reference units, a delay circuit, a short circuit protector, an oscillator, a counter, and logic circuits. The Over-charge detector threshold is high accuracy such as ±10mV. DFN(PLP)1820-6B package is available.
Operating Input Voltage 1.5 V to 10.0 V (Maximum Rating: 12 V) Charger Negative Input Voltage -30 V Number of Cells 2 Supply Current Typ. 4.0 µA Standby Current Max. 0.1 µA or Max. 2.0 µA Overcharge Detection Voltage 3.65 V to 4.32 V Overcharge Detection Voltage Accuracy ±10 mV Overcharge Detection Delay Time 1 s Overdischarge Detection Voltage 2.0 V to 3.2 V Overdischarge Detection Voltage Accuracy ±1.0% Overdischarge Detection Delay Time 128 ms Discharge Overcurrent Detection Voltage 0.05 V to 0.20 V Discharge Overcurrent Detection Voltage Accuracy ±10 mV Discharge Overcurrent Detection Delay Time 12 ms Charge Overcurrent Detection Voltage -0.2 V to -0.1 V Charge Overcurrent Detection Voltage Accuracy ±20 mV Charge Overcurrent Detection Delay Time 8 ms Short Detection Voltage Typ. 1.0 V Short Detection Delay Time 300 µs Conditions for Overcharge Restoration Voltage Release Conditions for Overdischarge Restoration Latch / Voltage Release Package DFN(PLP)1820-6B 0 V Charge Available / Unavailable
Protections / Functions
Temperature Protection Reset Alarm Cell Balance Cascadable Open Wire Detection Wakeup Short-circuit Current Detection Delay Time Shortening
- 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- Please contact us or our distributors for unpublished reliability information.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
Buy, Request for Samples, Request for Information Materials
Please contact your local distributors for any sales-related inquiry such as price, stock, delivery, etc.
|Temperature Protection||Temperature Protection|
|Cell Balance||Cell Balance Function|
|Cascadable||Cascade Connect Function|
|Open Wire Detection||Open Wire Detect 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".