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PDF FP8203 Data sheet ( Hoja de datos )

Número de pieza FP8203
Descripción 2A Switch-Mode Li-Ion Battery Charger
Fabricantes Feeling Technology 
Logotipo Feeling Technology Logotipo



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No Preview Available ! FP8203 Hoja de datos, Descripción, Manual

2A Switch-Mode Li-Ion Battery Charger
FP8203
General Description
The FP8203 is a highly integrated switch-mode Li-Ion Battery Charger. With few external
components, FP8203 is well suited for a wide range of portable applications. Charging current can be
programmed by an external current sensing resistor. With 600KHz switching frequency, FP8203 can
use of small external components. Other features include UVLO, automatic recharge, charge status
indicators and battery temperature monitor.
Features
Up to 2A Programmable Charge Current
No external MOSFET, Sense Resistor, or Blocking Diode Required
Switch-model Charger for single cell Li-Ion Batteries
Preset Charge Voltage with ±1% Accuracy
Automatic Recharge
2.9V Trickle Charge Voltage
C/10 Charge Termination
Thermal Protection
Charge Status Indicators for No Battery and Charge Failure Display
Applications
Portable Information Appliances
Charging Docks & Cradles
Cellular Phones & PDAs
Handheld Computers
Typical Application Circuit
VIN
+
VCC
LX
FP8203 VS
EN
VBAT
STDBY
CHRG
GND
2
+
+
BAT+
LI-Ion
SOP-8L (EP)
VIN
+
VCC
LX
EN
VS
FP 8203
CHRG
VBAT
STDBY
+
+
BAT+
RTRICK
GND TEMP
NTC
LI- Ion
DFN-10L (EP)
This datasheet contains new product information. Feeling Technology reserves the rights to modify the product specification without notice.
No liability is assumed as a result of the use of this product. No rights under any patent accompany the sales of the product.
Website: http://www.feeling-tech.com.tw
Rev. 0.64
1/16

1 page




FP8203 pdf
Marking Information
SOP-8L (EP)
FP8203
XXx-XXL
Halogen Free
Lot Number
Internal ID
Per - Half Month
Year
DFN-10L (EP)
FP8203
XXx XXL
Halogen Free
Lot Number
Internal ID
Per-Half Month
Year
Halogen Free: Halogen free product indicator
Lot Number: Wafer lot number’s last two digits
For Example
Lot : 123456 XXx-56L
Internal ID: Internal Identification Code
Per-Half Month: Production period indicator in half month time unit
For Example : A → First Half Month of January
B → Second Half Month of January
C → First Half Month of February
D → Second Half Month of February
Year: Production year’s last digit
FP8203
This datasheet contains new product information. Feeling Technology reserves the rights to modify the product specification without notice.
No liability is assumed as a result of the use of this product. No rights under any patent accompany the sales of the product.
Website: http://www.feeling-tech.com.tw
Rev. 0.64
5/16

5 Page





FP8203 arduino
FP8203
Manual shutdown
At any point in the charge cycle, the FP8203 can be put into shutdown mode when put the EN pin
to the low-level voltage. This reduces the battery drain current to about to 2uA and the supply current to
less than 55uA.
Automatic Recharge
Once the charge cycle is terminated, the FP8203 continuously monitors the voltage on the BAT
pin using a comparator with a 1.8ms filter time (TRECHARGE). A charge cycle restarts when the battery
voltage falls below 4.15V (which corresponds to approximately 80% to 90% battery capacity).This
ensures that the battery is kept at or near a fully charged condition and eliminated the need for periodic
charge cycle initiations. CHRG output enters a strong pull-down state during recharge cycles.
Programming Trickle Charge Current
If the battery voltage is below the trickle charge threshold, the FP8203 delivers a small current
to charge the battery until the battery voltage reaches the fast charge threshold value. the trickle
charge current is set by the external resistor RTRICK. For applications that do not need to set the trickle
charge current, short the RTRICK pin to the GND. The FP8203 supplies approximately 1/10 the
programmed charging current to bring the battery voltage up to a safe level. The trickle charge current
value can be calculated with following equation:
40 k + Rtrick
ITRICK = 400 k + Rtrick x ICHG
360k
Vref
VTRICK
40k
RTRICK
RTRICK
This datasheet contains new product information. Feeling Technology reserves the rights to modify the product specification without notice.
No liability is assumed as a result of the use of this product. No rights under any patent accompany the sales of the product.
Website: http://www.feeling-tech.com.tw
Rev. 0.64
11/16

11 Page







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