R5480 Series
1-Cell Li-ion Battery Protection IC with RSENSE pin
R5480 Series
1-Cell Li-ion Battery Protection IC with RSENSE pin
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Description
The R5480 is a protection IC for over-charge of rechargeable Lithium-ion (Li+)/Lithium polymer battery. The R5480 can detect over-charge, over-discharge, excess-discharge current, and excess-charge current of onecell Lithium-ion (Li+)/Lithium polymer battery. The external resistor of RSENSE pin allows a high-accuracy detection for excess current. The supply current after detecting over-discharge is suppressed as much as possible by stopping the internal circuit.
Spec
| Operating Input Voltage | 1.5 V to 5.0 V (Maximum Rating: 30 V) | ||
| Number of Cells | 1 | ||
| Supply Current | Typ. 4.0 µA | ||
| Standby Current | Max. 0.1 µA | ||
| Overcharge Detection Voltage | 4.1 V to 4.7 V (0.005 V Step) | ||
| Overcharge Detection Voltage Accuracy | ±20 mV (≤ 4.5 V) / ±25 mV (> 4.5 V) | ||
| Overcharge Detection Delay Time | 1.0 s | ||
| Overdischarge Detection Voltage | 2.1 V to 3.0 V (0.050 V Step) | ||
| Overdischarge Detection Voltage Accuracy | ±35 mV | ||
| Overdischarge Detection Delay Time | 20 ms, 132 ms | ||
| Discharge Overcurrent Detection Voltage | 0.020 V to 0.050 V (0.001 V Step) | ||
| Discharge Overcurrent Detection Voltage Accuracy | ±15% (≥ 30 mV) / ±4.5 mV (< 30 mV) | ||
| Discharge Overcurrent Detection Delay Time | 12 ms | ||
| Charge Overcurrent Detection Voltage | -0.057 V to -0.020 V (0.001 V Step) | ||
| Charge Overcurrent Detection Voltage Accuracy | ±15% | ||
| Charge Overcurrent Detection Delay Time | 16 ms, 8 ms | ||
| Short Detection Voltage | 0.14 V, 0.18 V, 0.25 V, 0.50 V | ||
| Short Detection Delay Time | 250 µs | ||
| Conditions for Overcharge Restoration | Latch | ||
| Conditions for Overdischarge Restoration | Latch | ||
| Package | DFN(PL)1414-6 | ||
| Output Delay Time Shortening | At COUT is “H”, if V- level is set at −2.0 V, the Output Delay time of detect the over-charge and over-discharge can be reduced (Delay Time for over-charge becomes about 1/100 of normal state). | ||
| 0 V Charge | Prohibited | ||
Protections / Functions
| Temperature Protection | Reset | Alarm | Cell Balance | Cascadable | Open Wire Detection | Wakeup | Short-circuit Current Detection | Delay Time Shortening |
|---|---|---|---|---|---|---|---|---|
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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".
Technical Documents
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Typical Application
Quality & Packages
| Product Name | Compatibility | Package | Marking | Reliability |
|---|---|---|---|---|
| R5480Kxxxxx-TR |
|
DFN(PL)1414-6 | See datasheet | R5480K |
- 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
Buy / Contact
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Purchase, Request for samples and documentsSales are made through distributors. Please contact your local distributors for any sales-related inquiry such as price.
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Available from 1 piece!Our electronic device products are available through our authorized online distributors.
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Technical Support
R5480 Series