2-Cell to 3-Cell Li-ion Battery Second Protection IC
R5435 Series are CMOS-based high voltage tolerant over-charge protection ICs for Li-ion/Li-polymer secondary battery. The R5435 can detect overcharge of 2-cell to 3-cell Li-ion/ Li-polymer batteries. The R5435 is consists of 3 voltage detectors, a voltage reference unit, an oscillator, a counter, a delay circuit, a logic circuit.
When the over-charge is detected, after the IC internally fixed delay time, the output of COUT becomes "H".
After detecting over-charge, when the cell voltage becomes lower than the over-charge released voltage, the over-charge state is released.
If all the cells voltages become equal or less than the shutdown detector threshold, all the circuits are halted and shut down, as a result, the consumption current of IC itself (Shutdown current) is extremely reduced.
By connect short 2 cells other than monitored cell, over-charge and released delay time can be shortened.
The output type is CMOS.
Operating Input Voltage 3.3 V to 15.0 V (Maximum Rating: 30 V) Number of Cells 2,3 Supply Current Typ. 3.0 µA Shutdown Detection Voltage 3.5 V Shutdown Current 0.1 µA Overcharge Detection Voltage 4.10 V to 4.55 V (0.005 V Steps) Overcharge Detection Voltage Accuracy ±20 mV Overcharge Detection Delay Time 2 s, 4 s, 6 s Package DFN(PLP)1616-6B, TSOT-23-6
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- Please contact us or our distributors for unpublished reliability information.
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|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".