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Battery Management R540xx Series


R540xx Series Specifications



The R540xx Series are protection ICs for over-charge/discharge of rechargeable one-cell Lithium-ion (Li+)/Lithium polymer excess load current, further include a short circuit protector for preventing large external short circuit current and Excess charge/discharge-current.

*High Voltage Tolerant Process Absolute Maximum Rating 35V
*Low supply current
· Supply current (At normal mode) TYP. 3.5µA
· Standby current (detecting over-discharge) MAX. 0.1µA
*High accuracy detector threshold
· Over-charge detector (Topt=25°C) ±25mV
· Over-charge detector (Topt=-5 to 55°C) ±30mV
· Over-discharge detector ±2.5%
· Excess discharge-current detector ±15mV
· Excess charge-current detector ±30mV
*Variety of detector threshold
· Over-charge detector threshold 4.0V - 4.5V step of 0.005V
· Over-discharge detector threshold 2.0V - 3.0V step of 0.005V
· Excess discharge-current threshold 0.05V-0.4V step of 0.005V
· Excess charge-current threshold Fixed at 0.1V
*Internal fixed Output delay time (Selectable with mask option)
· Over-charge detector Output Delay 250ms/1s/5s
· Over-discharge detector Output Delay 20ms
· Excess discharge-current detector Output Delay 6ms/12ms
· Short Circuit detector Output Delay 200µs, 300µs
· Excess charge-current detector Output Delay 8ms/16ms
*0V-charge option acceptable/unacceptable with mask option
*With Latch function/auto release after over-charge detection selectable with mask option
*Ultra Small package *SOT-23-5
*SOT-23-6
*PLP1820-6
*PLP1616-6

Applications



Li+ /Li Polymer protector of over-charge, over-discharge, excess-current for battery pack
High precision protectors for cell-phones and any other gadgets using on board Li+ / Li Polymer battery

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