FP8202dR-G1 [FEELING]
2A Switch-Mode Li-Ion Battery Charger;
| 型号： | FP8202dR-G1 |
| 厂家： | 
Feeling Technology |
| 描述： | 2A Switch-Mode Li-Ion Battery Charger 电池 |
| 文件： | 总16页 (文件大小：653K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
FP8202
2A Switch-Mode Li-Ion Battery Charger
General Description
The FP8202 is a highly integrated switch-mode Li-Ion Battery Charger. With few external
components, FP8202 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, FP8202 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
VIN
VCC
EN
LX
VS
+
+
VCC
EN
LX
VS
FP8202
+
+
FP8202
VBAT
BAT+
VBAT
+
BAT+
CHRG
+
STDBY
STDBY
CHRG
NTC
LI-Ion
RTRICK
GND
2
TEMP
GND
LI-Ion
SOP-8L (EP)
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
FP8202
Function Block Diagram
STDBY
CHRG
Vcc
VIN
+
-
Body
Switcher
OC
VBAT
LX
145°C
TDie
-
Compensation
+
VS
-
80%
X12
VBAT
+
-
+
TEMP
+
-
45%
2.9V
+
Charging
Control
GND
VREF
-
+
VREF
VBAT
360KΩ
-
EN
4.05V
+
40KΩ
RTRICK
Charge Status Indicators
Charge Status
In Charging
CHRG (Red)
STDBY(Green)
ON
OFF
ON
Charge Termination
OFF
UVLO, OverT, UnderT,
NoBat(with TEMP used)
OFF
OFF
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
2/16
FP8202
State Diagram
Shutdown Mode
Vcc < V
UVLO or
Vcc < VBAT
=Hi-Impedance
=Hi-Impedance
CHRG
STDBY
Vcc ≥ VUVLO and
Vcc ≥ VBAT +0.1V
VBAT 2.9V
≥
Check
VBAT
VBAT < 2.9V
Pre-Charge Mode
Vcc < VUVLO or
Vcc < VBAT
Charge Current=1/10．I
BAT
CHRG=Strong Pull-Low
=Hi-Impedance
STDBY
VBAT
≥
2.9V
Constant-Current Charge Mode
Vcc < VUVLO or
Vcc < VBAT
Charge Current=IBAT
=Strong Pull-Low
CHRG
=Hi-Impedance
STDBY
VBAT > 4.05V
Constant-Voltage Charge Mode
Vcc < VUVLO or
Vcc < VBAT
Charge Voltage > 4.05V
=Strong Pull-Low
CHRG
=Hi-Impedance
STDBY
Charge Current <1/10．IBAT
Standby Mode
Charge Termination
Vcc < VUVLO
Vcc < VBAT
or
VBAT < 4.05V
=Hi-Impedance
CHRG
=Strong Pull-Low
STDBY
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
3/16
FP8202
Pin Descriptions
SOP-8L (EP)
TOP View
8
1
2
3
4
LX
GND
VS
VCC
Name No. I / O
Description
LX
GND
VS
1
2
3
4
5
6
7
8
9
I
Switch node and inductor connection pin
IC Ground
7
6
5
CHRG
STDBY
EN
P
I
Charge current-sense input
Battery Voltage
VBAT
EN
P
I
VBAT
Enable Control
O
O
P
P
Charge State Indicator2
Charge State Indicator1
Supply Voltage
STDBY
Bottom View
CHRG
VCC
EP
Exposed PAD-Must connect to Ground
EP
DFN-10L (EP)
Top View
Name No. I / O
Description
Switch node and inductor connection pin
IC Ground
LX
VCC
LX
GND
VS
1
2
I
P
I
GND
VS
CHRG
STDBY
EN
3
Charge current-sense input
Battery Voltage
VBAT
TEMP
VBAT
TEMP
RTRICK
EN
4
P
I
RTRICK
5
Battery Temperature Detector
CC Charge Current Setting & Monitor
Enable Control
6
I
Bottom View
7
I
8
O
O
P
P
Charge State Indicator2
Charge State Indicator1
Supply Voltage
STDBY
9
CHRG
VCC
EP
10
11
EP
Exposed PAD-Must connect to Ground
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
4/16
FP8202
Marking Information
SOP-8L (EP)
FP8202
-
XXx XXL
Halogen Free
Lot Number
Internal ID
Per- Half Month
Year
DFN-10L (EP)
FP8202
XXxXXL
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
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
FP8202
Ordering Information
Part Number
FP8202XR-G1
FP8202dR-G1
Operating Temperature
Package
SOP-8L(EP)
DFN-10(EP)
MOQ
2500EA
2500EA
Description
Tape & Reel
Tape & Reel
-40°C ~ +85°C
-40°C ~ +85°C
Absolute Maximum Ratings
Parameter
Min.
Typ.
Max.
6
Symbol
Vcc
Conditions
Unit
V
Supply Voltage
-0.3
LX to VCC Voltage
VDS
-7
V
All Other Pins
-0.3
-65
6
V
BAT pin Current
IBAT
TJ
2.5
+150
+150
65
A
Junction Temperature
Storage Temperature
°C
TS
℃
DFN-10L
SOP-8L
DFN-10L
SOP-8L
℃ / W
℃ / W
℃ / W
℃ / W
℃
Thermal Resistance (Junction to Ambient)
Thermal Resistance (Junction to Case)
θJA
θJC
50
10
10
Operating Temperature
-40
+85
+260
Lead Temperature (soldering, 10 sec)
℃
Suggested IR Re-flow Soldering Curve
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
6/16
FP8202
Recommended Operating Conditions
Min.
4.35
-40
Typ.
Max.
Parameter
Supply Voltage
Operating Temperature
Symbol
Conditions
Unit
V
Vcc
5.5
85
Ambient Temperature
°C
DC Electrical Characteristics (Vcc=5V, TA= 25°C, unless otherwise noted)
Min.
Typ.
Max.
Parameter
Standby Current
Symbol
Test Conditions
Unit
ISB
Charge Termination
55
100
µA
µA
VCC < VBAT , VCC< VUVLO
RPROG not connect
0℃<TA<85℃
Shutdown Supply Current
CV Output (Float) Voltage
IST
55
100
VFLOAT
4.158 4.200
4.242
2200
V
RSense=0.05Ω
RSense =0.1Ω
1800
900
450
0
2000
1000
500
-2.5
±4
mA
1100
550
-6
mA
mA
µA
RSense =0.2Ω
BAT pin Current
IBAT
Standby-Mode, VBAT=4.2V
Shutdown-Mode,
±6
µA
Sleep-Mode, VCC=0V
VBAT< VTRIKL , RSense=0.05Ω
RSense =0.1Ω, VBAT Rising
RSense =0.1Ω
-4
-6
µA
mA
V
Trickle Charge Current
ITRIKL
VTRIKL
VTRKHYS
VUV
200
2.9
200
3.7
Trickle Charge Threshold Voltage
Trickle Charge Hysteresis Voltage
VCC Under Voltage Lockout Threshold
2.8
3.5
3.0
3.9
mV
V
Vcc Rising
VCC Under Voltage Lockout Threshold
Hysteresis
VUVHYS
500
mV
Vcc Rising
Vcc Falling
250
100
260
100
200
600
100
mV
mV
mΩ
mA
mA
KHz
%
VCC-VBAT Lockout Threshold
PMOSFET On Resistance
VASD
RON
RSense =0.1Ω
RSense=0.05Ω
C/10 Termination Current Threshold
ITERM
Switching Frequency
Fsw
DMAX
500
0
700
Max. Duty
Min. Duty
DMIN
%
CHRGB pin Output Low Voltage
STDBYB pin Output Low Voltage
Battery Recharge Threshold Voltage
Thermal Shutdown
VCHRG
VSTDBY
VRECHRG
TLIM
ICHRG=5mA
ISTDBY=5mA
0.3
0.3
150
145
80
0.6
0.6
V
V
VFLOAT-VRECHRG
mV
°C
TEMP pin High Threshold Voltage
TEMP pin Low Threshold Voltage
Soft-Start Time
VTEMP-H
VTEMP-L
TSS
%
45
%
IBAT=0 to IBAT=0.1V/RS
VBAT High to Low
20
µs
Recharge Comparator Filter Time
C/10Termination Comparator Filter Time
TRECHRG
TTERM
0.8
0.8
1.8
1.8
4
4
mS
mS
IBAT Falling below ITERM
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
7/16
FP8202
Function Description
Operation
The FP8202 is a switch-mode battery charger designed primarily for charging single cell
lithium-ion batteries. The charger uses a constant-current/constant-voltage charge algorithm with
programmable current. Charging current can be programmed externally with a single current sensing
resistor between the VS pin and the BAT pin. The final battery float voltage is internally set to 4.2V.
Normal Charge Cycle
A charge cycle begins when the voltage at the VCC pin rises above the UVLO threshold. If the
BAT pin voltage is smaller than 2.9V, the charger enter trickle charge mode. In this mode, the FP8202
supplies approximately 1/10 the programmed charging current to bring the battery voltage up to a safe
level for full current charging. When the BAT pin voltage rises above 2.9V, the charger enters
constant-current mode, where the full programmed charge current is supplied to the battery. When the
BAT pin voltage approaches 4V, the FP8202 enters the constant-voltage mode and the charge current
begins to decrease. When the charge current drops to 1/10 of the programmed value, the charge cycle
ends.
Programming Charge Current
When the battery voltage exceeds the trickle charge threshold, the charger goes into the full
scale constant current charge mode. In constant current mode, the charge current is set by the
external sense resistor RSENSE and an internal 100mV reference, The required resistor value can be
calculated from the charge current with following equation:
100mV
Rsense
=
ICHG
Charge Termination
A charge cycle is terminated when the charge current falls to 1/10 the programmed value after
the final float voltage is reached. This condition is detected by using an internal filtered comparator to
monitor the sense voltage. When the voltage between the VS pin and the BAT pin falls below 10mV for
longer then TTERM (1.8ms), charging is terminated. The charge current is latched of and the FP8202
enters standby mode, where the input supply current drops to 55uA. The FP8202 draws no current
from the battery in standby mode. This feature reduces the charge and discharge cycles on the battery,
further prolonging the battery life.
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
8/16
FP8202
Thermal Protection
FP8202 will shutdown automatically when the internal junction temperature reaches 140℃ to
protect both the part and the system.
Battery Temperature Fault Monitoring
In the event of a battery over-temperature condition, the charging control will turn off the
internal pass device and report a battery temperature fault on the TEMP pin. Inside the FP8202, two
internal voltage references VTEMP-H and VTEMP-L are fixed at 80% ×VCC and 45% ×VCC respectively. As
the TEMP pin voltage rises above VTEMP-H or falls below VTEMP-L, the FP8202 stops charging and
indicates a fault condition. After the system recovers from a temperature fault, the device will resume
charging operation. For applications that do not need to monitor the battery temperature, short the
TEMP pin to the GND.
The values of R1 and R2 are set according to the battery temperature range and the value of
thermal sensitive resistor. If the battery is equipped with NTC(Negative Temperature Coefficient)
thermistor and the temperature monitor range is TL~TH(TL< TH), then RT, the thermistor resistance,
decreases as temperature increases from TL to TH, means RTL>RTH.
The TEMP pin voltage can be calculated as:
R2//RT
VTEMP
Vcc
R1 R2//RT
Thus, this VTEMP decreases as the temperature increase from TL to TH.
To set proper R1 and R2 value for temperature protection, we set:
R2//RTL
0.8×Vcc= VTEMPH
=
Vcc at TL
Vcc at TH
R1 R2//RTL
R2//RTH
0.45×Vcc= VTEMPL
=
R1 R2//RTH
Where RTL and RTH are the thermistor resistances at TL and TH respectively.
So R1 and R2 can be derived as following:
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
9/16
FP8202
RTL RTH (K2 -K1)
RTL RTH 35
R1=
R2=
=
(RTL -RTH)K1 K2 (RTL -RTH)36
RTL RTH (K2 - K1)
RTL RTH 35
RTL 9 -RTH 44
=
RTL(K1 - K1K2) - RTH(K2 - K1K2)
where K1=0.45 and K2=0.8
VIN
Li-ion Battery
Vcc
R1
R2
BAT
Bat+
Bat-
NTC
FP8202
TEMP
GND
Under Voltage Lockout (UVLO)
An internal under voltage lockout circuit monitors the input voltage and keeps the charger in
shutdown mode until Vcc rises above the under voltage lockout threshold. The UVLO circuit has a
built-in hysteresis of 500mV. Furthermore, to protect against reverse current in the power MOSFET, the
UVLO circuit keeps the charge in shutdown mode if Vcc falls to within 100mV of the battery voltage, If
the UVLO comparator is tripped, the charger will not come out of shutdown mode until Vcc rises
250mV above the battery voltage.
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
10/16
FP8202
Manual shutdown
At any point in the charge cycle, the FP8202 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 FP8202 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 4.05V (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. CHRGoutput enters a strong pull-down state during recharge cycles.
Programming Trickle Charge Current
If the battery voltage is below the trickle charge threshold, the FP8202 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 FP8202 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:
40k +Rtrick
ITRICK
=
x ICHG
400k +Rtrick
Vref
360k
40k
VTRICK
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
FP8202
Application Information
Inductor Selection
Inductance value is decided based on different condition. 3.3uH to 4.7µH inductance value is
recommended for general application circuit. There are three important inductor specifications, DC
resistance, saturation current and core loss. Low DC resistance has better power efficiency.
Capacitor Selection
Use Low ESR capacitors are preferred to reduce the input inrush voltage, Ceramic capacitor of
X5R and X7R are recommended, which have low equivalent series resistance (ESR) and wider
operation temperature range.
Diode Selection
Schottky diodes with fast recovery times and low forward voltages are recommended. Ensure the
diode average and peak current rating exceed the average output current and peak inductor current. In
addition, the diode’s reverse breakdown voltage must exceed the Vcc voltage.
Layout Considerations
1. The power traces, consisting of the GND trace, the LX trace and the battery trace should be kept
short,direct and wide.
2. Layout switching node LX, inductor and diode connection traces wide and short to reduce EMI.
3. Place CIN nearby VCC pin as closely as possible to maintain input voltage steady and filter out the
pulsing input current.
4. The GND of the CIN and Schottky should be connected close together and directly to a ground
plane.
5. Place RSENSE nearby BAT pin and VS pin.
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
12/16
FP8202
C1
GND
Vcc
D1
1
2
8
7
R1
L1
FP8202
3
4
6
5
RS
C3
VIA to Vcc
C2
BAT
SOP-8L (EP) Suggested Layout
C1
GND
Vcc
D1
1
10
9
R1
2
3
L1
FP8202
8
7
6
RS
C3
4
5
VIA to Vcc
C2
BAT
DFN-10L (EP) Suggested Layout
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
13/16
FP8202
Typical Application
VIN
VCC
EN
LX
VS
+
8
5
1
L1
4.7uH
R1
FP8202
10k
3
4
R2
1k
R3
1k
+
C1
RS
C3
D1
0.05
10uF/X5R
4.7uF
SM340A
VBAT
BAT+
+
C2
10uF
STDBY
CHRG
6
7
LI-Ion
GND
2
SOP-8L (EP)
VIN
+
C1
R2
1k
VCC
LX
VS
10
R1
1
3
10uF/X5R
L1
4.7uH
10k
EN
7
+
C3
4.7uF
RS
D1
RTS1
0.05
FP8202
SM340A
VBAT
BAT+
CHRG
4
9
8
+
C2
10uF
STDBY
NTC
RTS2
RTRICK
6
TEMP
GND
5
2
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
14/16
FP8202
Package Outline
SOP-8L (EP)
Symbols
Min. (mm)
1.346
Max. (mm)
1.752
0.152
1.498
4.978
3.987
6.197
1.270
8°
A
A1
A2
D
0.050
4.800
3.810
5.791
0.406
0°
E
H
L
θ°
UNIT: mm
Exposed PAD Dimensions:
Symbols
Min. (mm)
1.94
Max. (mm)
2.29
E1
D1
1.94
2.29
Note:
1. Package dimensions are in compliance with JEDEC outline: MS-012 AA.
2. Dimension ”D” does not include molding flash, protrusions or gate burrs.
3. Dimension “E” does not include inter-lead flash or protrusions.
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
15/16
FP8202
DFN-10L (EP)
Unit: mm
Symbols
Min. (mm)
0.700
Max. (mm)
0.800
A
A1
A3
b
0.000
0.050
0.20REF
0.180
0.300
D
3.00
3.00
E
D2
E2
e
2.200
1.400
2.700
1.750
0.500
L
0.300
0.200
0.500
K
Note:
1. JEDEC Outline :N/A
2. Dimensions “D” does not include mold flash, protrusions or gate burrs mold flash
3. Protrusions and gate burrs shall not exceed .15mm (.006in) per side.
Dimensions “E” does not include inter-lead flash or protrusions inter-lead flash and protrusions
4. Shall not exceed 25mm (.010in) per side.
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
16/16
相关型号：
©2020 ICPDF网 联系我们和版权申明