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PDF FP5003 Data sheet ( Hoja de datos )
| Número de pieza | FP5003 | |
| Descripción | High Frequency PWM Controller | |
| Fabricantes | Feeling Technology | |
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FP5003
High Frequency PWM Controller With Short Circuit Restart
General Description
The FP5003, a high performance monolithic IC, includes adjustable frequency oscillator, error
amplifier for pulse width modulation (PWM) control, 1.0V precision voltage reference, under-voltage
lockout circuit (UVLO), variable pulse duty control (DTC) circuit and programmable auto-restart timer
for short circuit shutdown protection (SCSAR). Built-in totem-pole transistors pair drives MOS directly
at high frequency operation with high efficiency. It is very easy to design a DC-DC converter using a
few external components. The typical application example is shown below:
Features
Wide Operating Voltage Range:3.6~30V
Reference Voltage Precision: ±2%
Output Source / Sink Current up to 100mA
Totem-Pole Output for MOS Drive
Oscillator Frequency:Max.1.5MHz
Variable Duty Control (DTC)
Under Voltage Lockout Protection Function (UVLO)
Short Circuit Shutdown Protection / Auto Re-start Function (SCSAR)
Package:SOP-8L / MSOP-8L / SOP-8L (EP)
Typical Application Circuit
VIN
VOUT
OUT
VCC
R7T
FB
S5CP
FP5003
D6TC
3COMP
G8ND
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. 0.9
1/19
1 page  
FP5003
Ordering Information
Part Number
FP5003DR-LF
FP5003XR-LF
FP5003TR-LF
Operating Temperature
-20°C ~ +105°C
-20°C ~ +105°C
-20°C ~ +105°C
Package
SOP-8L
SOP-8L (EP)
MSOP-8L
MOQ
2500EA
2500EA
2500EA
Description
Tape & Reel
Tape & Reel
Tape & Reel
Absolute Maximum Ratings
Parameter
Symbol
Conditions
Power Supply Voltage
VCC
Output Voltage
Vo
Source / Sink Output Current
IO
Junction Temperature
Tj
SOP-8L (TA ≤ 25℃)
Allowable Dissipation
SOP-8L (EP) (TA ≤ 25℃)
MSOP-8L (TA ≤ 25℃)
Thermal Resistance
TJA
SOP-8L
TJC
Thermal Resistance
TJA
SOP-8L (EP)
TJC
Thermal Resistance
TJA
MSOP-8L
TJC
Operating Temperature Range
Storage Temperature Range
Lead Temperature (soldering, 10
sec)
Min.
-20
-65
Typ.
Max.
30
30
±150
+150
570
600
400
+130
+38.8
+120
+38.8
+260
+60
+105
+150
Unit
V
V
mA
℃
mW
mW
mW
℃/W
℃/W
℃/W
℃/W
℃/W
℃/W
℃
℃
+260
℃
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. 0.9
5/19
5 Page 
FP5003
Oscillator / PWM Comparator
The oscillator frequency (fosc) can be adjusted from 20KHz to 1.5MHz by the resistor connected
to RT pin. The relation between the oscillator frequency and RT value can be determined by the graph
shown in Figure 1.
The internal oscillator output is a triangular waveform. Its minimum and maximum voltage levels
are approximately 0.7V and 1.3V respectively (see Figure 14). The PWM comparator compares the
triangular waveform with the signals from output voltage of error-amplifier and the DTC voltage. The
PWM comparator output controls the output stage of totem-pole transistors pair off or on whenever the
triangular wave is greater than the both input signals or less.
DTC
OSC
COMP
PWM
COMPARATOR
TOTEM-POLE
OUTPUT
VCC
3.0 V
1.5 V
SCSAR
VTH
Charge
Current
Standby stage
Hold-stage
Re-start
stage
Figure 14. PWM Timing Diagram
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. 0.9
11/19
11 Page | ||
| Páginas | Total 19 Páginas | |
| PDF Descargar | [ Datasheet FP5003.PDF ] | |
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