lv51140t Sanyo Semiconductor Corporation, lv51140t Datasheet - Page 7

• Manufacturer Part Number: lv51140t
• Description: 1-cell Lithium-ion Battery Protection Ic
• Manufacturer: Sanyo Semiconductor Corporation

Application Circuit Example
External Components
• The supply voltage (V DD ) to this IC is stabilized by R1 and C1. Moreover, R1 and R2 act as the current restriction
• If the value of R1 is too large, the over-charge detection voltage will become high due to the current consumption of this
• If the value of C1 is too small, this IC may be in a shutdown state at the time of the discharge over-current or the load
• Use the value within the limits shown in the table about the value of R2. In order to reduce the current at the time of
Note 1 : The connection diagram and each value of external components shown above are just recommendation. Including
Note 2 : The IC is susceptible to static electricity and some pins are easily damaged by it. Handle the IC carefully.
Resistor 1
Capacitor 1
Resistor 2
resistances at the time of reverse-connecting a charger, or at the time of connecting a charger which outputs the voltage
exceeding the absolute maximum rating of this IC. Be sure to connect these components.
IC. 330Ω is recommended.
short-circuiting. 0.1µF is recommended.
reverse-connecting a charger, we recommend to choose R1 and R2 so that the sum total of resistance values is more than
4kΩ. The recommended value of R2 is 3.9kΩ.
a battery and FETs, determine the circuit after sufficient evaluation about your actual application.
Items
Battery
Symbol
C1, 2
R1
R2
R1
C1
V DD
V SS
Recommended value
LV51140T
Do
0.1µF
3.9kΩ
330Ω
C2
LV51140T
Co
V M
R2
No.A1024-7/13