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PDF FP6290H Data sheet ( Hoja de datos )
| Número de pieza | FP6290H | |
| Descripción | Low-Noise Step-Up Current Mode PWM Converter | |
| Fabricantes | Feeling Technology | |
| Logotipo |  |
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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
VIN /
3~3.6V
6 VCC
5
LX
3 EN
FB 2
FP6290H
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. 0.66
1/14
1 page  
FP6290H
Ordering Information
Part Number
Operating Temperature
FP6290HXR-G1
-40°C ~ +85°C
FP6290HdR-G1
-40°C ~ +85°C
Package
SOP-8L (EP)
DFN-8L
MOQ
2500EA
2500EA
Description
Tape & Reel
Tape & Reel
Absolute Maximum Ratings
Parameter
Symbol
Conditions
Supply Voltage
VCC
LX to GND
SS,COMP to GND
EN,FREQ,FB to GND
Junction Temperature
TJ
Storage Temperature
TS
Thermal Resistance
θJA
SOP-8L (EP)
θJC
θJA
DFN-8L
θJC
Lead Temperature
(soldering, 10 sec)
Min.
-0.3
-0.3
-0.3
-65
Typ.
Max. Unit
6V
14 V
VCC+0.3
VCC
V
V
+150
℃
+150
℃
+60 ℃ / W
+4 ℃ / W
+68 ℃ / W
+4.2 ℃ / W
+260
℃
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
5 Page 
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 0.4 Duty) 0.5 Duty VIN /(fosc L) VIN / VOUT
Where:
ILIM=current limit specified at 65%
(VOUT VIN VDIODE )
Duty=duty cycle= VOUT ILIM RON VDIODE
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
11 Page | ||
| Páginas | Total 14 Páginas | |
| PDF Descargar | [ Datasheet FP6290H.PDF ] | |
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