R5650T Series 3 to 5 Serial Cell Li-ion Battery Protection IC NO.EA-401-200629 OUTLINE The R5650T is an overcharge and discharge protection IC for 3- to 5- series cell Li-ion / Li-polymer rechargeable battery pack, further includes a short-circuit and protection circuits for charge / discharge overcurrent. The R5650T supports 3 to 5 cells connected in series, forcing a certain voltage on SEL1 and SEL2 pins can select any number of cells. FEATURES High Voltage Tolerant Process Absolute Maximum Ratings 30 V Low Supply Current Normal operation with using 5 cells Typ. 12.0 A Standby Typ. 5.0 A High-accuracy Voltage Detection (1) Overcharge detection voltage (V ) 3.6 V to 4.5 V (in 5 mV steps) DET1n Overcharge detection voltage accuracy 25 mV (Ta = 25C) Overcharge release voltage V - 0.1V to V - 0.4V (in 50mV steps) DET1n DET1n (1) Overdischarge detection voltage (V ) 2.0 V to 3.2 V (in 5 mV steps) DET2n Overdischarge detection voltage accuracy 50 mV (Ta = 25C) Overdischarge release voltage V + 0.0 V to V + 0.7 V (in 100mV steps) DET2n DET2n - provided, Max.value is 3.2 V. Discharge overcurrent detection voltage1 (V ) 0.03 V to 0.10 V (in 10 mV steps) DET31 Discharge overcurrent detection voltage accuracy 0.03 V to 0.05 V: 5 mV, 0.05 V to 0.10 V: 10% Discharge overcurrent detection voltage2 (V ) 2 / 2.5 / 3 times V DET32 DET31 (2) Short-circuit detection voltage 0.1 V to 0.6 V (in 20 mV steps) Charge overcurrent detection voltage (V ) -0.015 V to -0.025 V, -0.030 V to -0.050 V DET4 (in 5 mV steps) Charge overcurrent detection voltage accuracy -0.015 V to -0.025 V: 5 mV, -0.030 V to -0.050 V: 20%, or Disable Temperature Protection Charge high-temperature (T ) 45 / 50 / 55 C DCH Charge high-temperature accuracy 5C Charge low-temperature (T ) -5 / -3 / 0 C DCL Charge low-temperature accuracy 3C Discharge high-temperature (T ) 70 / 75 C DDH Discharge high-temperature accuracy 5C (1) V : n =1, 2, 3, 4, 5 DET1n (2) VDET32 is not detected when VDET32 is higher than VSHORT. 1 R5650T NO.EA-401-200629 Each Detection Delay Time Overcharge detection delay time 1.0 sec Overdischarge detection delay time settable by external capacitor Discharge overcurrent detection delay time 1/2 settable by external capacitor Charge overcurrent detection delay time R5650TxxxAx: 256 ms R5650TxxxBx: 8 ms Short-circuit detection delay time Typ. 500 s Selectable 0 V Battery Charging Permit / Inhibition Overcharge Release Condition Voltage release type Overdischarge Release Condition Voltage release type 3 to 5 Cells Selectable Battery Protection Delay Time Shortening Function Temperature Protection by External NTC Thermistor Discharging Current Detection for Temperature Protection Package TSSOP-20 (EIJA: 225 MIL) APPLICATIONS Li-Ion or Li-Polymer Battery Protection for a power tool and cordless / robot vacuum cleaners. 2