R5642 Series
1-Cell to 3-Cell Li-ion Battery Second Protection IC
R5642 Series
1-Cell to 3-Cell Li-ion Battery Second Protection IC
-
Description
The R5642 is an overcharge protection IC for 1 to 3 serial cells Li-ion / Li-polymer rechargeable battery.
This IC provides the high-accuracy voltage detection function and the shutdown function can reduce the supply current to the minimum when all cell’s voltage becomes less than the shutdown detection voltage.
Key Benefits
- Low consumption current and low shutdown current: achieving longer driving time with a battery of small capacity
-
Spec
Operating Input Voltage 1.5 V to 20 V or VC1 +5 V (Maximum Rating: 26 V) Number of Cells 1,2,3 Supply Current Typ. 0.85 µA Shutdown Detection Voltage Typ. 3.5 V ±0.3 V Shutdown Current Max. 0.1 µA Overcharge Detection Voltage 4.10 V to 4.65 V (0.005 V Steps) Overcharge Detection Voltage Accuracy ±15 mV Overcharge Detection Delay Time 2 s, 4 s, 6 s
with Delay Time Shortening Function, the delay time can be reduced down to approx. 1/90Overcharge Restoration Voltage VDET1 to VDET1-0.5 V (0.05 V Steps) Conditions for Overcharge Restoration Auto Release Package DFN2020-6 Protections / Functions
Temperature Protection Reset Alarm Cell Balance Cascadable Open Wire Detection Wakeup Short-circuit Current Detection Delay Time Shortening -
Technical
Documents-
Typical Application Circuit for 3-cell
-
-
Quality &
PackagesProduct Name Compatibility Package Marking Reliability R5642Lxxxxx-TR DFN2020-6 See datasheet R5642L - 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.
-
Sample / Buy
-
Buy Online
-
Buy, Request for Samples, Request for Information Materials
Authorized Distributors
Please contact your local distributors for any sales-related inquiry such as price, stock, delivery, etc.
-
Download Datasheet
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".