HYCON HY2120-CB

The series of HY2120 ICs is best created for 2-cell lithium-ion/lithium polymer rechargeable battery protection and it also comprises high-accuracy voltage detectors and delay circuits. These ICs are suitable for protecting 2-cell rechargeable lithium-ion/lithium polymer battery packs against the problems of overcharge, overdischarge and overcurrent.

• High-accuracy voltage detection circuit
• Overcharge detection voltage V_CUn (n = 1,2): 4.10 to 4.50V Accuracy ±25mV
• Overcharge release voltage VCRn (n = 1,2): 3.90 to 4.30V Accuracy ±50mV
• Overdischarge detection voltage V_DLn (n = 1,2): 2.00 to 3.20V Accuracy ±80mV
• Overdischarge release voltage VDRn (n = 1,2): 2.30 to 3.40V Accuracy ±100mV
• Discharge overcurrent detection voltage (by option)
• Charge overcurrent detection voltage (by option) Accuracy ±30mV
• Short-circuiting detection voltage 1.0V (fixed) Accuracy ±0.4V
• Delay times are generated by an internal circuit (external capacitors are unnecessary).
• Overcharge delay time 1000ms typ.
• Overdischarge delay time 110ms typ.
• Discharge overcurrent delay time 10ms typ.
• Charge overcurrent detection voltage 7ms typ.
• Short circuit delay time 250μs typ.
• Low current consumption (Products with Power-down Function)
• Operation mode 5.0μA typ., 9.0μA max. (VDD = 7.8V)
• Ultra low power-down current at 0.1μA max. (VDD = 4.0V)
• High-withstanding-voltage device is used for charger connection pins (CS pin and OC pin : Absolute maximum rating = 33V)
• 0 V battery charge function “available” / “unavailable” are selectable
• Wide operating temperature range -40°C to +85°C
• Small package SOT-23-6
• The HY2120 series are Halogen-free, green package

• 2-cell lithium-ion rechargeable battery packs
• 2-cell lithium polymer rechargeable battery packs