R5460x2 Series
2-Cell Li-ion Battery Protection IC
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Description
The R5460x2 Series are high voltage CMOS-based protection ICs for over-charge/discharge of rechargeable two-cell Lithium-ion (Li+) / Lithium polymer, further include a short circuit protection circuit 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 voltage detectors, a reference unit, a delay circuit, a short circuit protector, an oscillator, a counter, and a logic circuit. In addition to SOT-23-6 packages, DFN(PL)1820-6 is also available.
Related Products
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Spec
Operating Input Voltage 1.5 V to 10.0 V (Absolute Maximum Rating: 12 V) Charger Negative Input Voltage -30 V Number of Cells 2 Supply Current Typ. 4.0 µA Standby Current R5460x2xxxC/F: Max. 0.1 µA
R5460x2xxxA/D/E: Max. 2.0 µAOvercharge Detection Voltage R5460x2xxxA/C/E/F: 4.1 V to 4.5 V (0.005 V Steps)
R5460x2xxxD: 3.5 V to 4.0 V (0.005 V Steps)Overcharge Detection Voltage Accuracy ±25 mV (Ta = 25°C)
±30 mV (-5°C ≤ Ta ≤ 55°C)Overcharge Detection Delay Time 1.0 s Overdischarge Detection Voltage 2.0 V to 3.0 V (0.005 V Steps) Overdischarge Detection Voltage Accuracy ±2.5% Overdischarge Detection Delay Time 128 ms Discharge Overcurrent Detection Voltage 0.05 V to 0.20 V (0.005 V Steps) Discharge Overcurrent Detection Voltage Accuracy ±15 mV Discharge Overcurrent Detection Delay Time 12 ms Charge Overcurrent Detection Voltage -0.10 V, -0.20 V, -0.40 V Charge Overcurrent Detection Voltage Accuracy ±30 mV or ±40 mV Charge Overcurrent Detection Delay Time 8 ms Short Detection Voltage Typ. 1.1 V Short Detection Delay Time Typ. 300 µs Conditions for Overcharge Restoration Voltage Release Conditions for Overdischarge Restoration Latch / Voltage Release Package DFN(PL)1820-6, SOT-23-6 0 V Charge Available Protections / Functions
Temperature Protection Reset Alarm Cell Balance Cascadable Open Wire Detection Wakeup Short-circuit Current Detection Delay Time Shortening -
Technical
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Typical Application
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Quality &
PackagesProduct Name Compatibility Package Marking Reliability R5460K2xxAx-TR DFN(PL)1820-6 See datasheet R5460K R5460N2xxAx-TR-FE SOT-23-6 See datasheet R5460N-FE - 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.
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Sample / Buy
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Buy Online
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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.
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Functional Description
Temperature Protection | Temperature Protection |
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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".