R5460x2xx SERIES Li-ION/POLYMER 2-CELL PROTECTOR NO.EA-165-190704 OUTLINE The R5460x2xxxx 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. When the over-charge voltage threshold or excess-charge current threshold crosses the each detector threshold from a low value to a high value, the output of COUT pin switches to L level after internal fixed delay time. To release over-charge detector after detecting over-charge, the detector can be reset and the output of COUT becomes when a kind of load is connected to VDD after a charger is disconnected from the battery pack and the cell voltage becomes lower than over-charge detector threshold. In case that a charger is continuously connected to the battery pack, if the cell voltage becomes lower than the over-charge released voltage, over-charge state is also released. The output of DOUT pin, the output of the over-discharge detector and the excess discharge-current detector, switches to L level after internally fixed delay time, when discharged voltage crosses the detector threshold from a high value to a value lower than VDET2. The conditions to release over-discharge voltage detector after detecting over-discharge voltage are as follows: A/D versions: after connecting a charger, when the cell voltage becomes higher than over-discharge detector threshold or, without connecting charger, when the cell voltage becomes equal or higher than over-discharge released voltage. C version: after connecting a charger, when the cell voltage becomes higher than over-discharge detector threshold voltage. E version: whether connecting a charger, or not, when the cell voltage becomes higher than released voltage from over- discharge. F version: after connecting a charger, when the cell voltage becomes higher than released voltage from over-discharge. In case that connecting a charger, for A/C/D versions, there is no hysteresis for over-discharge detector. E/F versions, even if a charger is connected to the battery pack, the hysteresis of over-discharge detector exists. To satisfy the release conditions for over-discharge voltage protector, the output voltage of DOUT becomes. Even if a battery is discharged to 0V, charge current is acceptable. After detecting excess-discharge current or short current, when the load is disconnected, the excess discharged or short condition is released and DOUT becomes H. After detecting over-discharge voltage, supply current will be kept extremely low by halting internal circuits operation. When the output of COUT is H, if V- pin level is set at -1.6V, the delay time of over-charge and over-discharge detector can be shortened. Especially, the delay time of the over-charge detector can be reduced into approximately 1/60 and test time for protection circuit PCB can be reduced. The output type of COUT and DOUT is CMOS. 1 R5460x2xx NO.EA-165-190704 FEATURES Manufactured with High Voltage Tolerant Process................... Absolute Maximum Rating 30V Low supply current ................................................... Supply current (At normal mode) Typ. 4.0A Standby current Typ. 1.2A (A/ D/ E version) Max. 0.1 A (C/ F version) High accuracy detector threshold ............................. Over-charge detector (Ta=25C) 25mV (Ta=-5 to 55C) 30mV Over-discharge detector 2.5% Excess discharge-current detector 15mV Excess charge-current detector 40mV Variety of detector threshold Over-charge detector threshold (A/C/E/F version) 4.1V-4.5V step of 0.005V (VD1U/VD1L) Over-charge detector threshold (D version) 3.5V-4.0V step of 0.005V (VD1U/VD1L) Over-discharge detector threshold 2.0V-3.0V step of 0.005V (VD2U/VD2L) Excess discharge-current threshold 0.05V-0.20V step of 0.005V 3 options of Excess charge-current threshold (1) -0.4V 40mV (2) -0.2V 30mV (3) -0.1V 30mV Over-charge released voltage 0.1V-0.4V step of 0.05V (VH1U/VH1L) Over-discharge released voltage 0.2V-0.7V step of 0.1V (VH2U/VH2L) Internal fixed Output delay time ............................... Over-charge detector Output Delay 1.0s Over-discharge detector Output Delay 128ms Excess discharge-current detector Output Delay 12ms Excess charge-current detector Output Delay 8ms Short Circuit detector Output Delay 300s Output Delay Time Shortening Function.................. At COUT is H, if V- level is set at 1.6V, the Output Delay time of detect the over-charge and over-discharge can be reduced. (Delay Time for over-charge becomes about 1/60 of normal state.) 0V-battery charge ..................................................... acceptable Ultra Small package ................................................. SOT-23-6, DFN(PLP)1820-6 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 2