FP6290H [FEELING]
Low-Noise Step-Up Current Mode PWM Converter;
| 型号： | FP6290H |
| 厂家： | 
Feeling Technology |
| 描述： | Low-Noise Step-Up Current Mode PWM Converter |
| 文件： | 总14页 (文件大小：841K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
FP6290H
Low-Noise Step-Up Current Mode PWM Converter
General Description
The FP6290H is a current mode boost DC-DC converter. Its PWM circuitry with built-in 0.15Ω
power MOSFET makes this converter highly power efficiently. Selectable high switching frequency
allows faster loop response and easy filtering with a low noise output. The non-inverting input its error
amplifier is connected to an internal 1.24V precision reference voltage. Soft-Start time can be
programmed with an external capacitor, which sets the input current ramp rate. Current mode control
and external compensation network make it easy and flexible to stabilize the system.
The FP6290H is available in the SOP-8L (EP) and DFN-8L package. Combined with low ESR
capacitors, it reduced PCB space for step-up applications.
Features
Adjustable Output from VCC to 12V
Internal Fixed PWM Frequency: 640KHz / 1.2MHz
Frequency Selection Pin
Precision Feedback Reference Voltage: 1.24V
Internal 0.15Ω, 3A, 14V Power MOSFET
External Programmable Soft-Start Function (SS)
Shutdown Current : 0.1µA
Over Current Protection
Package: SOP-8L (EP), DFN-8L
Applications
LCD Displays
Digital Cameras
Handheld Devices
Portable Products
Typical Application Circuit
VOUT /
9.2V
VIN
/
3~3.6V
D
SM340A
5
2
6
3
VCC
EN
LX
FB
FP6290H
1
4
+
7
FREQ
COMP
8
SS
GND
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. 0.66
1/14
FP6290H
Function Block Diagram
Vcc
EN
4µA
Power
ON / OFF
BIAS
SOFT
START
SS
+
+
COMP
LX
FB
CONTROL
AND
DRIVER
LOGIC
+
Error Amp.
1.24V
PWM
Comp.
SLOPE
COMPEN-
SATION
+
FREQ
Σ
OSCILLATOR
GND
Current
Sense Amp.
5
µA
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. 0.66
2/14
FP6290H
Pin Descriptions
SOP-8L (EP)
Top View
Name No. I / O
Description
1
8
SS
COMP
COMP
FB
1
2
3
4
5
6
7
8
9
O
I
Error Amplifier Compensation Output
Error Amplifier Inverting Input
Enable Control
2
FB
FREQ
VCC
LX
7
6
5
EN
I
EN
3
GND
LX
P
O
P
O
I
IC Ground
Switch Output
4
GND
VCC
IC Power Supply
FREQ
SS
Frequency Selection
Soft-Start Control
Bottom View
EP
P
Exposed PAD. Must connect to GND
EP
DFN-8L
Top View
Name No. I / O
Description
Error Amplifier Compensation Output
Error Amplifier Inverting Input
Enable Control
SS
COMP
FB
COMP
FB
1
2
3
4
5
6
7
8
9
O
I
FREQ
CC
V
EN
EN
I
GND
LX
GND
LX
P
O
P
O
I
IC Ground
Switch Output
VCC
IC Power Supply
Bottom View
FREQ
SS
Frequency Selection
Soft-Start Control
EP
P
Exposed PAD. Must connect to GND
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. 0.66
3/14
FP6290H
Marking Information
SOP-8L (EP)
6290H
-
XXx XXL
Halogen Free
Lot Number
Internal ID
Per- Half Month
Year
DFN-8L
6290H
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. 0.66
4/14
FP6290H
Ordering Information
Part Number
FP6290HXR-G1
FP6290HdR-G1
Operating Temperature
Package
SOP-8L (EP)
DFN-8L
MOQ
2500EA
2500EA
Description
Tape & Reel
Tape & Reel
-40°C ~ +85°C
-40°C ~ +85°C
Absolute Maximum Ratings
Min.
Typ.
Max.
6
Parameter
Symbol
Conditions
Unit
V
Supply Voltage
VCC
LX to GND
-0.3
-0.3
-0.3
14
V
SS,COMP to GND
EN,FREQ,FB to GND
Junction Temperature
Storage Temperature
VCC+0.3
VCC
V
V
TJ
+150
+150
+60
℃
TS
-65
℃
θJA
θJC
θJA
θJC
℃ / W
℃ / W
℃ / W
℃ / W
℃
SOP-8L (EP)
+4
Thermal Resistance
Lead Temperature
+68
DFN-8L
+4.2
+260
(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. 0.66
5/14
FP6290H
Recommended Operating Conditions
Min.
2.6
Typ.
Max.
5.5
Parameter
Supply Voltage
Operating Temperature
Symbol
Conditions
Unit
V
VIN
-40
+85
°C
DC Electrical Characteristics (VIN=3V, TA= 25°C, VFREQ=0V, unless otherwise noted)
Min.
Typ.
Max.
Parameter
Reference Section
Output Voltage
Symbol
Test Conditions
Unit
VREF
COMP connected to FB
1.222
1.240
0.05
1.258
V
△ VREF
/
VCC=2.6V～5.5V
Line Regulation
% / V
VREF
1
1
%
%
TA=-40℃ to 25℃
TA= 25℃ to 85℃
Output Voltage Change with
Temperature
Under Voltage Lockout Section
Upper Threshold Voltage (VCC
Lower Threshold Voltage (VCC
)
)
VUPPER
VLOW
VHYS
2.38
2.33
50
2.53
2.48
V
V
TA=25℃
Hysteresis (VCC
)
mV
Soft-Start Section
Reset Switch Resistance
Input Source Current
Oscillator Section
RSS
ISS
100
7.0
Ω
VSS=1.2V
1.5
4.0
μA
FREQ=GND
FREQ=VCC
540
640
1.22
2
740
KHZ
MHz
% / V
Frequency
fosc
1.00
1.50
△ f / △ V
△ f / △ V
Frequency Change with Voltage
VCC=2.6V to 5.5V
Frequency Change with
Temperature
10
%
TA=-40℃ to 85℃
FREQ=GND
FREQ=VCC
79
70
88
88
%
%
Maximum Duty Cycle
TDUTY
Error–Amplifier Section
FB Input Bias Current
Trans-conductance
IBIAS
gm
Av
VFB=1.24V
40
nA
140
700
240
△ I=5μA
μA / V
V / V
Voltage Gain
Output Section
NMOS Current Limit
NMOS On Resistance
Output Leakage Current
Current-Sense Trans-Resistance
ILIM
VFB=1V,Duty Cycle=65%
3
A
Ω
RDS (ON) ILX=1.2A
ILXOFF VLX=12V
RCS
0.15
0.01
0.35
0.5
20
μA
V / A
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. 0.66
6/14
FP6290H
Min.
Typ.
Max.
Parameter
Symbol
Test Conditions
Unit
Control Input Section
EN, FREQ pin
VCC=2.6V~5.5V
EN, FREQ pin
VCC=2.6V～5.5V
Input High Voltage
Input Low Voltage
VIH
VIL
0.7×VCC
V
V
0.3× VCC
Hysteresis
EN,FREQ
0.1×VCC
V
FREQ Pull-Down Current
EN Input Current
IFREQ
IEN
1.8
5
1
9
μA
nA
Total Device
Disable Supply Current
Standby Supply Current
Average Supply Current
IDISABLE EN=GND
0.1
0.20
2.0
10
0.35
5.0
μA
mA
mA
ISBY
IAVG
VFB=1.3V
VFB=1.0V
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. 0.66
7/14
FP6290H
Typical Operating Characteristics
(VCC=3.3V, VOUT=5V, TA= 25°C, unless otherwise noted)
Efficiency vs. Output Current
NO-Load Supply Current vs. Input Voltage
100
90
80
70
60
50
40
30
20
10
0
0.35
0.3
0.25
0.2
640KHz
1.2MHz
640KHz
1.2MHz
0.15
0.1
VOUT=5V
VCC=3.3V
VOUT=5V
0.05
0
2.5
3
3.5
4
4.5
5
5.5
1
1
1
10
100
1000
10000
1000
1000
Output Current (mA)
Input Voltage(V)
Efficiency vs. Output Current
Output Voltage vs. Output Current
100
90
80
70
60
50
40
30
20
10
0
12.2
12.1
12
TA=-30℃
TA=25℃
TA=85℃
11.9
11.8
11.7
11.6
11.5
640KHz
1.2MHz
VCC=3.3V
VOUT=12V
Fosc=640KHZ
10
100
0
100
200
300
400
500
600
Output Current (mA)
Output Current (mA)
Efficiency vs. Output Current
Maximum Output Current vs. Input Voltage
100
90
80
70
60
50
40
30
20
10
0
5
4.5
4
Fosc=640KHZ
3.5
3
640KHz
1.2MHz
Vout=5V
2.5
2
Vout=12V
1.5
1
VCC=5V
VOUT=12V
0.5
0
3
3.2 3.4 3.6 3.8
4
4.2 4.4 4.6 4.8
5
10
100
Output Current (mA)
Input Voltage (V)
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. 0.66
8/14
FP6290H
CH1=Inductor Current,CH4= VOUT
VCC=3.3V, VOUT=12V
ILOAD=10mA
CH1=Inductor Current,CH3=EN,CH4=VOUT
VCC=3.3V, VOUT=12V
ILOAD=100mA~500mA
Frequency=640KHz
Frequency=640KHz
CH1=Inductor Current,CH3=LX,CH4= VOUT
AC-Coupled
VCC=3.3V, VOUT=12V
ILOAD=600mA
CH1=Inductor Current,CH3=EN,CH4=VOUT
VCC=3.3V, VOUT=12V
ILOAD=600mA
Freq=640KHz
Freq=1.2MHz
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. 0.66
9/14
FP6290H
Voltage Reference
A 1.24V reference regulator supplies to the FP6290H error amplifier’s non-inverting terminal.
Error Amplifier
The error amplifier compares a sample of the dc-dc converter output voltage with the 1.24V (VREF
reference and generates an error signal for the PWM comparator. Output voltage of dc-dc converter is
setting with the resistor divider by the following equation:
)
R1
R2
VOUT 1
1.24
VOUT
T
R1
R2
Error Amplifier
2
1
1.24V
RCOMP
FP6290H
CCOMP
Oscillator
The switching frequency of FP6290H can be selected to operate at either 640KHz or 1.2MHz.
Connect the FREQ pin to GND for 640KHz operation, or VCC for 1.2MHz operation. FREQ pin has an
internal pull-down current around 5μ A. It gives user the option of selecting 640KHz operation by
leaving FREQ unconnected.
Soft Start
The soft start is functional after power on. The interval of soft start time is determined by a
capacitor connected to SS pin. When EN pin is taken high, the soft start capacitor (CSS) is charged by a
constant current of 4μ A (typ). During this interval, the SS voltage directly controls the peak inductor
current. The maximum load current is available after the soft-start interval is completed. Once the EN
pin is taken low, the soft-start capacitor is discharged to ground to prepare for next start-up.
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. 0.66
10/14
FP6290H
The load must wait for the soft-start interval to finish before drawing a significant amount of load
current. The duration after which the load can begin to draw maximum load current is:
TMAX 6.77 105 CSS
EN
The FP6290H can be turn off to reduce the supply current to 0.1μ A when EN is low. In this mode,
the internal reference, error amplifier, comparators, and biasing circuitry turn off while the N-channel
MOSFET is turned off. The boost converter’s output is connected to VCC by the external inductor and
catch diode.
Output Current Capability
The output current capability of the FP6290H is a function of current limit, input voltage, operation
frequency, and inductor value. Because of the slope compensation used to stabilize the feedback loop,
the duty cycle affects the current limit. The output current capability is governed by the following
equation:
IOUT
(MAX)
ILIM (1.26 0.4Duty) 0.5Duty VIN /(foscL) VIN /VOUT
Where:
ILIM=current limit specified at 65%
(VOUT VIN VDIODE)
VOUT ILIM RON VDIODE
Duty=duty cycle=
VDIODE=catch diode forward voltage at ILIM
η=conversion efficiency,85%nominal
Current Limitation
The internal power-MOS switch current is monitored cycle-by-cycle and is limited to the value not
exceed 3A (Typ.). When the switch current reaches the limited value, the internal power-MOS is turned
off immediately until the next cycle.
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. 0.66
11/14
FP6290H
Typical Application
Figure 1 Typical Application Circuits
Figure 2 TFT Panel Power Supply Application Circuits
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. 0.66
12/14
FP6290H
Package Outline
SOP-8L (EP)
UNIT: mm
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°
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. 0.66
13/14
FP6290H
DFN-8L
Unit: mm
Symbols
Min. (mm)
0.700
Max. (mm)
0.800
A
A1
A3
b
0.000
0.050
0.20REF
m
0.25
0.35
D
3.000 BSC
3.000 BSC
0.650 BSC
E
e
K
0.200
-
Exposed PAD Dimensions:
Symbols
Min. (mm)
1.600
Max. (mm)
1.800
E2
D2
L
1.900
2.050
0.350
0.450
Note:
1. Package dimensions are in compliance with JEDEC outline: MO-229
2. Dimension b applied to metalized terminal and is measured between 0.15mm and
0.30mm from the terminal tip. If the terminal has the optional radius on the other end
of the terminal, the dimension b should not be measured in that radius area.
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. 0.66
14/14
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