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PDF FP6290 Data sheet ( Hoja de datos )
| Número de pieza | FP6290 | |
| Descripción | Low-Noise Step-Up Current Mode PWM Converter | |
| Fabricantes | Feeling Technology | |
| Logotipo |  |
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FP6290
Low-Noise Step-Up Current Mode PWM Converter
General Description
The FP6290 is a current mode boost DC-DC converter. Its PWM circuitry with built-in 0.2Ω
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 FP6290 is available in the MSOP-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 0.2Ω, 1.6A, 14V Power MOSFET
External Programmable Soft-Start Function (SS)
Shutdown Current : 0.1µA
Over Current Protection
Package: MSOP-8L
Applications
LCD Display
Digital Camera
Handheld Device
Portable Product
Typical Application Circuit
VIN /
3~3.6V
6 VCC
5
LX
3 EN
FB 2
FP6290
1
COMP
FREQ 7
4 GND
SS 8
D SM340A
VOUT /
9.2V
+
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. 0.62
1/12
1 page  
FP6290
Recommended Operating Conditions
Parameter
Symbol
Conditions
Supply Voltage
VIN
Operating Temperature
Min.
2.6
-40
Typ.
Max.
5.5
85
Unit
V
°C
DC Electrical Characteristics (VIN=3V, TA= 25°C, VFREQ=0V, unless otherwise noted)
Parameter
Symbol Test Conditions
Reference Section
Output Voltage
Line Regulation
Output Voltage Change with
Temperature
VREF
△VREF /
VREF
COMP connected to FB
VCC=2.6V～5.5V
TA=-40℃ to 25℃
TA= 25℃ to 85℃
Under Voltage Lockout Section
Upper Threshold Voltage (VCC)
VUPPER
Lower Threshold Voltage (VCC)
VLOW
Hysteresis (VCC)
VHYS
TA=25℃
Soft-Start Section
Reset Switch Resistance
Input Source Current
RSS
ISS VSS=1.2V
Oscillator Section
Frequency
Frequency Change with Voltage
Frequency Change with
Temperature
Maximum Duty Cycle
Error–Amplifier Section
FB Input Bias Current
Trans-conductance
Voltage Gain
f
△f / △V
FREQ=GND
FREQ=VCC
VCC=2.6V to 5.5V
△f / △V TA=-40℃ to 85℃
TDUTY
FREQ=GND
FREQ=VCC
IBIAS
gm
Av
VFB=1.24V
△I=5μA
Output Section
NMOS Current Limit
NMOS On Resistance
Output Leakage Current
Current-Sense Trans-Resistance
ILIM
RDS (ON)
ILXOFF
RCS
VFB=1V,Duty Cycle=65%
ILX=1.2A
VLX=12V
Min.
1.222
1.5
540
1.00
79
70
1.2
Typ.
1.240
0.05
1
1
2.38
2.33
50
4.0
640
1.22
2
10
88
88
140
700
1.6
0.2
0.01
0.56
Max.
1.258
2.53
2.48
100
7.0
740
1.50
40
240
2.3
0.5
20
Unit
V
%/V
%
%
V
V
mV
Ω
μA
KHZ
MHz
%/V
%
%
%
nA
μA / V
V/V
A
Ω
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. 0.62
5/12
5 Page 
Typical Application
FP6290
Figure 1 Typical Application Circuits
VOUT /
-9.2V
C13
4.7µF
3
C12
0.1µF
1
2
D4 BAV99 / SOT-23L
C11
0.1µF
C9
0.1µF
D3 BAV99 / SOT-23L
2
1
3
2
1
3
D2 BAV99 / SOT-23L
VOUT /
27V
C10
1µF
C8
1µF
VIN /
3~3.6V
C1
47µF
C2
0.1µF
C3
10pF
R1
7.5K
C4
1500pF
L1 4.7µF
6 VCC
5
LX
3 EN
FB 2
FP6290
1
COMP
FREQ 7
4 GND
SS 8
C5
0.033µF
D SM340A
R2
300K
R3
47K
VOUT /
9.2V
+
C6
47µF
C7
0.1µF
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. 0.62
11/12
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet FP6290.PDF ] | |
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