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R5434 Series
2-Cell to 5-Cell Li-ion Battery Second Protection IC
The R5434 is an overcharge protection IC for 2 to 5 serial Li-ion/Li-polymer secondary battery. When an overcharge is detected, after the IC internally fixed delay time, the output of COUT becomes "H". After detecting the overcharge, when the cell voltage becomes lower than the overcharge release voltage, the overcharge state is released. The output type is CMOS.
Specs & Datasheets
| Operating Input Voltage | 4.0 V to 25.0 V (Maximum Rating: 30 V) | ||
| Number of Cells | 2,3,4,5 | ||
| Supply Current | Typ. 3.0 µA | ||
| Overcharge Detection Voltage | 3.6 V to 4.6 V (0.005 V Steps) | ||
| Overcharge Detection Voltage Accuracy | ±25 mV | ||
| Overcharge Detection Delay Time | 1.5 s | ||
| Conditions for Overcharge Restoration | Voltage Release | ||
| Package | SON-8 | ||
Protections / Functions
| Temperature Protection | Reset | Alarm | Cell Balance | Cascadable | Open Wire Detection | Wakeup | Short-circuit Current Detection | Delay Time Shortening |
|---|---|---|---|---|---|---|---|---|
 |
Technical Documents
Typical Application: 5-cell Protection Circuit
R1 to R5: 330 Ω, C1 to C5: 0.1 µF
Quality & Packages
| Product Name | Compatibility | Package | Marking | Reliability |
|---|---|---|---|---|
| R5434DxxxAA-TR-FE |
|
SON-8 | R5434D | R5434D-FE |
C
P
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Please contact us or our distributors for unpublished reliability information.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
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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.
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".