2-Cell Lithium-Ion Secondary Battery Protection IC
Description
Ordering number : ENA1227A
LV51130T
CMOS IC
2-Cell Lithium-Ion Secondary Battery Protection IC
http://onsemi.
com
Overview
The LV51130T is a protection IC for 2-cell lithium-ion secondary batteries.
Features
• Monitoring function for each cell: • High detection voltage accuracy: • Hysteresis cancel function: • Discharge current monitoring function: • Low current consumption: • 0V cell charging function:
Detects overcharge and over-discharge conditions and controls the
charging and discharging operation of each cell.
Over-charge detection accuracy ±25mV
Over-discharge detection accuracy ±100mV
The hysteresis of over-discharge detection voltage is cancelled by
connection of a load after overcharging has been detected.
Detects over-currents, load shorting, and excessively high voltage of a
charger.
Normal operation mode typ.
6.
0μA
Stand by mode
max.
0.
2μA
Charging is enabled even when the cell voltage is 0V by giving a
voltage between the VDD pin and V- pin.
Specifications
Absolute Maximum Ratings at Ta = 25°C
Parameter
Power supply voltage
Input voltage
Charger minus voltage
Output voltage
Cout pin voltage
Dout pin voltage
Allowable power dissipation
Operating ambient temperature
Storage temperature
Symbol
VDD V-
Conditions
Vcout Vdout Pd max Topr Tstg
Independent IC
Ratings -0.
3 to +12
VDD-28 to VDD+0.
3
Unit V V
VDD-28 to VDD+0.
3 VSS-0.
3 to VDD+0.
3
170
-30 to +85
-40 to +125
V V mW °C °C
Stresses exceeding Maximum Ratings may damage the device.
Maximum Ratings are stress ratings only.
Functional operation above the Recommended Operating Conditions is not implied.
Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability.
Semiconductor Components Industries, LLC, 2013 August, 2013
81011HKPC/60408MSPC 20080522-S00003 No.
A1227-1/8
LV51130T
Electrical Characteristics at Ta = 25°C, unless especially specified.
Parameter
Symbol
Conditions
Operation input voltage
0V cell charging minimum...
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