Battery Charger. CN3058 Datasheet

CN3058 Charger. Datasheet pdf. Equivalent

CN3058 Datasheet
Recommendation CN3058 Datasheet
Part CN3058
Description 500mA LiFePO4 Battery Charger
Feature CN3058; CONSONANCE 500mA LiFePO4 Battery Charger CN3058 General Description: The CN3058 is a complete const.
Manufacture CONSONANCE
Datasheet
Download CN3058 Datasheet




CONSONANCE CN3058
CONSONANCE
500mA LiFePO4 Battery Charger
CN3058
General Description:
The CN3058 is a complete constant-current /constant
voltage linear charger for single cell LiFePO4
rechargeable batteries. The device contains an
on-chip power MOSFET and eliminates the need for
the external sense resistor and blocking diode. Its
low external component count makes CN3058
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 3.6V with
1.5% accuracy, it can also be adjusted with an
external resistor. The charge current can be
programmed externally with a single resistor. When
the input supply (wall adapter or USB supply) is
removed, the CN3058 automatically enters a low
power sleep mode , dropping the battery drain
current to less than 3uA. Other features include
undervoltage lockout, automatic recharge, battery
temperature sensing and charging/termination
indicator.
The CN3058 is available in 8-pin SOP package.
Applications:
Miner's lamp
LiFePO4 battery applications
Lead-acid batteries
A variety of chargers
Features:
Complete Charge Management for Single Cell
LiFePO4 Battery
Input voltage range from 3.8V to 6V
On-chip Power MOSFET
No external Blocking Diode or Current Sense
Resistors Required
Preset 3.6V Regulation Voltage with 1.5%
Accuracy, adjustable with 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 500mA
Constant-Current/Constant-Voltage/Constant-
Temperature 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 Package
Pb-free, rohs compliant and Halogen free
Pin Assignment
TEMP 1
8 FB
ISET 2
GND 3
VIN 4
CN3058E
7 CHRG
6 DONE
5 BAT
www.consonance-elec.com
1
REV 1.1



CONSONANCE CN3058
CONSONANCE
Typical Application Circuit
Figure 1 Typical Application Circuit(Constant Voltage Level 3.6V)
Figure 2 Application Circuit(Adjust Constant Voltage Level with Rx)
www.consonance-elec.com
2
REV 1.1



CONSONANCE CN3058
CONSONANCE
In Figure 2, the BAT pin’s voltage in constant voltage mode is given by the following equation:
Vbat 3.63.61×10-6×Rx
WhereVbat’s is in volt
Rx’s is in ohm
Block Diagram
www.consonance-elec.com
Figure 3 Block Diagram
3
REV 1.1







@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site (Privacy Policy & Contact)