Battery Charger. CN3058E Datasheet

CN3058E Charger. Datasheet pdf. Equivalent


CONSONANCE CN3058E
CONSONANCE
1A LiFePO4 Battery Charger
CN3058E
General Description:
The CN3058E 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 CN3058E
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 CN3058E 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 CN3058E is available in a thermally enhanced
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 1A
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 thermally enhanced SOP8 Package
Pb-free, rohs compliant and Halogen free
Pin Assignment
TEMP 1
ISET 2
GND 3
VIN 4
CN3058E
8 FB
7 CHRG
6 DONE
5 BAT
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CN3058E Datasheet
Recommendation CN3058E Datasheet
Part CN3058E
Description 1A LiFePO4 Battery Charger
Feature CN3058E; CONSONANCE 1A LiFePO4 Battery Charger CN3058E General Description: The CN3058E is a complete consta.
Manufacture CONSONANCE
Datasheet
Download CN3058E Datasheet




CONSONANCE CN3058E
CONSONANCE
Typical Application Circuit
Input Supply
C1
330
4
VIN FB 8
BAT 5
C2
Green
LED
CN3058E
Red
LED
7
CHRG
1
TEMP
6
DONE
ISET 2
GND
3
RISET
R1
Battery
NTC
R2
Figure 1 Typical Application Circuit(Constant Voltage Level 3.6V)
Input Supply
C1
330
4
VIN FB 8
5
BAT
C2
Green
LED
CN3058E
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 Level with Rx)
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CONSONANCE CN3058E
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
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Figure 3 Block Diagram
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