HY2122
Two-Cell Li-ion/Polymer Battery Protection

HY2122 Series Features
  • Built-in high precision voltage detection circuit and delay circuit
  • Low current consumption:
    • Operation mode < 9μA (VDD=6.4V)
    • Standby mode < 0.1μA (VDD=3.4V)
  • Charger connected pin adopts high-withstand-voltage design
  • (CS/OC pin absolute max. rating: 33V)
  • 0V battery charge function: “Available” or “Unavailable” is optional
  • Small package: SOT-23-6
  • Wide operation temperature range: -40℃~+85℃
  • All products are in Green packages: Pb & Halogen-free
  • Auto overdischange recovery function “Yes” or “No” is selectable

DataSheet

Product Name Overcharge  Detection Voltage
VCU
Overcharge  Release   Voltage
VCR
Overdischarge  Detection  Voltage
VDL
Overdischarge  Release   Voltage
VDR
Discharge  Overcurrent  Detection  Voltage
VDIP
Short Circuit Detection Voltage
VSIP
Charge
Overcurrent
Detection
Voltage
VCIP
0V Battery  Charge  Function V0CH Overcharge Detection Delay Time  TOC Overdischarge Detection
Delay Time
TOD
Discharge Overcurrent Detection Delay Time TDIP Charge Overcurrent Detection Delay Time TCIP Load Short Circuiting Detection Delay Time  TSIP Power-down Function/         Auto Overdischarge Recovery Function
Notice(1)
Over-charge release mode
HY2122-AB1A 3.650 V 3.450 V 2.000 V 2.500 V 200 mV 1.0 V -200 mV Available 1000 ms 110 ms 10 ms 7 ms 250 µs P Unavailable
HY2122-AB1B 3.650 V 3.450 V 2.000 V 2.500 V 200 mV 1.0 V -200 mV Available 1000 ms 110 ms 10 ms 7 ms 250 µs A Unavailable
HY2122-BB1A 3.750 V 3.250 V 1.800 V 2.300 V 200 mV 1.0 V -200 mV Available 1000 ms 110 ms 10 ms 7 ms 250 µs P Unavailable
HY2122-EB1A 3.900 V 3.500 V 2.200 V 2.500 V 200 mV 1.0 V -200 mV Available 1000 ms 110 ms 10 ms 7 ms 250 µs P Unavailable

Notice(1):Power-down Function=P;Auto Overdischarge Recovery Function=A

SelectionGuide