Charger IC. CN3162 Datasheet

CN3162 IC. Datasheet pdf. Equivalent


CONSONANCE CN3162
CONSONANCE
1A Lithium Battery Charger IC
CN3162
General Description:
The CN3162 is a complete constant-current /constant
voltage linear charger for single cell lithium
rechargeable battery. The device contains an on-chip
power MOSFET and eliminates the need for the
external current sense resistor and blocking diode. Its
low external component count makes CN3162
ideally suited for portable applications.
Thermal feedback regulates the charge current to
limit the die temperature during high power
operation or high ambient temperature. The
regulation voltage is internally fixed at 4.2V, it can
also be adjusted with an external resistor. The charge
current can be programmed externally with a single
resistor. When the input supply is removed, the
CN3162 automatically enters a low power sleep
mode, dropping the battery drain current to less than
3uA. Other features include under-voltage lockout,
automatic recharge, battery temperature sensing and
charging/termination indicator.
The CN3162 is available in a thermally enhanced
8-pin SOP/PP package.
Applications:
Mobile Phones
Digital Still Cameras
Power Bank
Portable Devices
Variety Of Chargers
Features:
Complete Charge Management for Single Cell
Lithium Battery
Input Voltage Range From 3.8V to 6V
On-chip Power MOSFET
No external Blocking Diode or Current Sense
Resistors Required
Constant Charge Voltage 4.2V, and also can be
adjustable by an external resistor
Precharge Conditioning for Reviving Deeply
Discharged Cells and Minimizing Heat
Dissipation During Initial Stage of Charge
Programmable Continuous Charge Current Up
to 1A
Constant-Current/Constant-Voltage/Constant-
Temp Operation with Thermal Regulation to
Maximize Charge Rate Without Risk of
Overheating
Automatic Low-Power Sleep Mode When Input
Supply Voltage is Removed
Status Indication for LEDs or uP Interface
C/10 Charge Termination
Automatic Recharge
Battery Temperature Sensing
Available in SOP8/PP Package
Pb-free, rohs-compliant, halogen free
Pin Assignment
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CN3162 Datasheet
Recommendation CN3162 Datasheet
Part CN3162
Description 1A Lithium Battery Charger IC
Feature CN3162; CONSONANCE 1A Lithium Battery Charger IC CN3162 General Description: The CN3162 is a complete cons.
Manufacture CONSONANCE
Datasheet
Download CN3162 Datasheet




CONSONANCE CN3162
CONSONANCE
Typical Application Circuit
Input Supply
C1
330
4
VIN FB 8
BAT 5
C2
Green
LED
CN3162
Red
LED
7
CHRG
1
TEMP
6
DONE
ISET 2
GND
3
RISET
R1
Battery
NTC
R2
Figure 1 Typical Application Circuit(Constant Voltage Fixed at 4.2V)
Input Supply
C1
330
4
VIN FB 8
5
BAT
C2
Green
LED
CN3162
Red
LED
7 CHRG
1
TEMP
6
DONE
ISET 2
GND
3
RISET
Rx
R1
Battery
NTC
R2
Figure 2 Application Circuit(Adjust Constant Voltage with Rx)
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CONSONANCE CN3162
CONSONANCE
In Figure 2, the BAT pin’s voltage in constant voltage mode is given by the following equation:
Vbat 4.23.01×10-6×Rx
WhereVbat’s is in volt
Rx’s is in ohm
Block Diagram
Figure 3 Block Diagram
Ordering Information
Part No. Package
Shipping
Operating Temperature Range
CN3162 SOP8/PP Tape and Reel, 4000/Reel
40to 85
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