|
|
Número de pieza | FP5139BDR-LF | |
Descripción | Asynchronous Boost Controller | |
Fabricantes | Feeling Technology | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de FP5139BDR-LF (archivo pdf) en la parte inferior de esta página. Total 18 Páginas | ||
No Preview Available ! Asynchronous Boost Controller
FP5139B
General Description
The FP5139B is a boost topology switching regulator control IC for battery-powered applications.
The FP5139B includes a totem-pole single output stage for driving NPN transistor or N-MOS, high
precision reference voltage(0.5V) to compare output voltage with feedback amplifier, an internal duty
time control for controlling the minimum duty cycle, programmable soft start with short circuit protection
function and logic level control for operating mode or standby mode.
Features
Wide Supply Voltage Operating Range: 1.8 to 15V
Precision Reference Voltage: 0.5V ±2%
Low Current Consumption: 5.5mA in Operation Mode
Low Current Consumption: 1μA in Standby Mode
High Oscillator Frequency: 1MHz max.
Totem-Pole Output with Adjustable ON / OFF Current (for NPN Transistors or n-Channel MOSFET)
Logic Level Control Stand-by Mode Function
Programmable Soft Start Function (SS)
Short Circuit Protection Function (SCP)
Package: SOP-8L, TSSOP-8L and MSOP-8L
Applications
Digital Camera
PDA
Portable Equipment
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. 1.0
1/18
1 page FP5139B
Ordering Information
Part Number
Operating Temperature
FP5139BDR-LF
-10°C ~ +85°C
FP5139BWR-LF
-10°C ~ +85°C
FP5139BTR-LF
-10°C ~ +85°C
Package
SOP-8L
TSSOP-8L
MSOP-8L
MOQ
2500EA
2500EA
2500EA
Description
Tape & Reel
Tape & Reel
Tape & Reel
Absolute Maximum Ratings
Parameter
Symbol Conditions
Power Supply Voltage
Output Source Current
VIN
Output Sink Current
Allowable Power Dissipation
SOP-8L, TA≦+25℃
MSOP-8L, TA≦+25℃
Storage Temperature
Lead Temperature
TTSOP-8L, TA≦+25℃
SOP-8L, (soldering, 10
sec)
TSSOP-8L, (soldering, 10
sec)
MSOP-8L, (soldering, 10
sec)
Min.
-55
Typ.
Max.
15
-50
50
570
400
400
+125
+260
+260
+260
Unit
V
mA
mA
mW
mW
mW
℃
℃
℃
℃
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. 1.0
5/18
5 Page FP5139B
Under Voltage Lockout (UVLO)
The under voltage lockout circuits turn the output off whenever the supply voltage drops too low
(approximately 0.9V at 25℃) for proper operation. A hysteresis voltage of 200mV eliminates false
triggering on noise and chattering.
Soft Start/ Short-circuit protection (SS / SCP)
The soft start is functional after power on. The interval of soft start time is determined by a
capacitor connected to SCP pin (pin 2). When soft start function finished, the internal soft start voltage
is setting high, but external SCP pin is setting low in order to change to short circuit detection /
protection function.
The time of soft start is:
TssmS 0.35 CF
The short circuit protection is triggered when a heavy loading makes output voltage drop and
error amplifier output (COMP pin) is larger than VPOS (0.9V typ.). The SS pin capacitor will be charged
to the SCP threshold voltage (0.8V typ.), then FP5139B output is disabled (internal pull-low) and the
capacitor is discharged to low.
The time of short circuit protection is:
TscpmS 0.8 CF
Output Transistor
The FP5139B has a totem-pole transistor with a 40mA source/sink current capability to drive an
external NPN transistor or NMOS directly. The driving current capability depends on a resistor R that is
connected to BR / CTL pin (Pin4) of FP5139B. (see figure 13)
FP5139
4
BR / CTL
R1
Control R2
Q1
Figure 13 Output Transistor Driving Control Circuit
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. 1.0
11/18
11 Page |
Páginas | Total 18 Páginas | |
PDF Descargar | [ Datasheet FP5139BDR-LF.PDF ] |
Número de pieza | Descripción | Fabricantes |
FP5139BDR-LF | Asynchronous Boost Controller | Feeling Technology |
Número de pieza | Descripción | Fabricantes |
SLA6805M | High Voltage 3 phase Motor Driver IC. |
Sanken |
SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
Analog Devices |
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |