|
|
PDF FAN6756 Data sheet ( Hoja de datos )
| Número de pieza | FAN6756 | |
| Descripción | PWM Controller | |
| Fabricantes | Fairchild Semiconductor | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de FAN6756 (archivo pdf) en la parte inferior de esta página. Total 20 Páginas | ||
|
No Preview Available !
January 2013
FAN6756— mWSaver™ PWM Controller
Features
Single-Ended Topologies, such as Flyback and
Forward Converters
mWSaver™ Technology
- Achieves Low No-Load Power Consumption:
< 30 mW at 230 VAC (EMI Filter Loss Included)
- Eliminates X Capacitor Discharge Resistor Loss
with AX-CAP® Technology
- Linearly Decreases Switching Frequency to
23 kHz
- Burst Mode Operation at Light-Load Condition
- Impedance Modulation in “Deep” Burst Mode
- Low Operating Current (450 µA) in Deep Burst
Mode
- 500 V High-Voltage JFET Startup Circuit to
Eliminate Startup Resistor Loss
Highly Integrated with Rich Features
- Proprietary Frequency Hopping to Reduce EMI
- High-Voltage Sampling to Detect Input Voltage
- Peak-Current-Mode Control with Slope
Compensation
- Cycle-by-Cycle Current Limiting with Line
Compensation
- Leading Edge Blanking (LEB)
- Built-In 7 ms Soft-Start
Advanced Protections
- Brown-in / Brownout Recovery
- Internal Overload / Open-Loop Protection (OLP)
- VDD Under-Voltage Lockout (UVLO)
- VDD Over-Voltage Protection (VDD OVP)
- Over-Temperature Protection (OTP)
- Current-Sense Short-Circuit Protection (SSCP)
Description
The FAN6756 is a next-generation Green Mode PWM
controller with innovative mWSaver™ technology, which
dramatically reduces standby and no-load power
consumption, enabling compliance with worldwide
Standby Mode efficiency guidelines.
An innovative AX-CAP® method minimizes losses in the
EMI filter stage by eliminating the X-cap discharge
resistors while meeting IEC61010-1 safety
requirements. “Deep” Burst Mode clamps feedback
voltage and modulates feedback impedance with an
impedance modulator during Burst Mode operation,
which forces the system to operate in a Deep Burst
Mode with minimum switching losses.
Protections ensure safe operation of the power system
in various abnormal conditions. A proprietary frequency-
hopping function decreases EMI emission and built-in
synchronized slope compensation allows more stable
Peak-Current-Mode control over a wide range of input
voltage and load conditions. The proprietary internal line
compensation ensures constant output power limit over
the entire universal line voltage range.
Requiring a minimum number of external components,
FAN6756 provides a basic platform that is well suited for
cost-effective flyback converter designs that require
extremely low standby power consumption.
Applications
Flyback power supplies that demand extremely low
standby power consumption, such as:
Adapters for Notebooks, Printers, Game Consoles,
etc.
Open-Frame SMPS for LCD TV, LCD Monitors,
Printer Power, etc.
Related Resources
Evaluation Board: FEBFAN6756MR_T03U065A
Ordering Information
Part Number
Protections(1)
Operating
OLP OVP OTP SSCP Temperature Range
Package
Packing
Method
FAN6756MRMY
FAN6756MLMY
A/R L
LL
L
L
A/R
A/R
-40 to +105°C
8-Pin, Small Outline
Package (SOP)
Tape & Reel
Note:
1. A/R = Auto Recovery Mode protection, L = Latch Mode protection.
© 2011 Fairchild Semiconductor Corporation
FAN6756 • Rev. 2.0.0
www.fairchildsemi.com
Free Datasheet http://www.datasheet4u.com/
1 page  
Electrical Characteristics
VDD=15 V and TJ=TA=25°C unless otherwise noted.
Symbol
Parameter
Condition
VDD Section
VDD-ON Threshold Voltage to Startup
VUVLO
Threshold Voltage to Stop
Switching in Normal Mode
VDD Rising
VDD Falling
Threshold Voltage to Enable HV
VRESTART Startup to Charge VDD in Normal
Mode
VDD-OFF
Threshold Voltage to Stop
Operating in Protection Mode
VDD Falling
VDD Falling
VDD-OLP
Threshold Voltage to Enable HV
Startup to Charge VDD in
Protection Mode
VDD Falling
VDD-LH
VDD-AC
IDD-ST
IDD-OP1
IDD-OP2
IDD-OLP
ILH
VDD-OVP
Threshold Voltage to Release
Latch Mode
VDD Falling
Threshold Voltage of VDD pin for
Enabling Brown-in
Startup Current
VDD=VDD-ON – 0.16 V
Supply Current in PWM Operation
VDD=15 V, VFB = 3 V,
Gate Open
VDD=15 V, VFB <1.4 V,
Supply Current when PWM Stops Deep Burst Mode,
Gate Off
Internal Sink Current,
VDD-OLP<VDD<VDD-OFF,
Protection Mode
VDD=
VDD-OLP
+ 0.1 V
FAN6756MRMY
FAN6756MLMY
Internal Sink Current, VDD<VDD-OLP,
Latch-Protection Mode
VDD = 5 V
Threshold Voltage for VDD
Over-Voltage Protection
tD-VDDOVP
VDD Over-Voltage Protection
Debounce Time
VDD Threshold Voltage for FB-Pin
VDD-ZFBR Impedance Modulation in Deep
Burst Mode
Min.
16
5.5
10
6
3.5
VUVLO
+2.5
90
160
30
23.5
110
Typ.
17
6.5
4.7
11
7
4.0
VUVLO+3
450
140
210
24.5
205
7
Max.
18
7.5
12
8
4.5
VUVLO
+3.5
30
1.8
190
260
25.5
300
Unit
V
V
V
V
V
V
V
µA
mA
µA
µA
µA
µA
V
µs
V
Continued on the following page…
© 2011 Fairchild Semiconductor Corporation
FAN6756 • Rev. 2.0.0
5
www.fairchildsemi.com
Free Datasheet http://www.datasheet4u.com/
5 Page 
Typical Performance Characteristics (Continued)
Figure 21. Brown-in (VAC-ON) vs. Temperature
Figure 22. Brownout (VAC-OFF) vs. Temperature
Figure 23. Inherent Current Limit of HV-Pin (IHV)
vs. Temperature
Figure 24. Output Current from RT Pin (IRT)
vs. Temperature
Figure 25. Over-Temperature Protection Threshold
Voltage (VRTTH1) vs. Temperature
Figure 26. Over-Temperature Protection Threshold
Voltage (VRTTH2) vs. Temperature
© 2011 Fairchild Semiconductor Corporation
FAN6756 • Rev. 2.0.0
11
www.fairchildsemi.com
Free Datasheet http://www.datasheet4u.com/
11 Page | ||
| Páginas | Total 20 Páginas | |
| PDF Descargar | [ Datasheet FAN6756.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| FAN6751 | Highly Integrated Green-Mode PWM Controller | Fairchild Semiconductor |
| FAN6753 | Highly Integrated Green-Mode PWM Controller | Fairchild Semiconductor |
| FAN6754 | Highly Integrated Green-Mode PWM Controller | Fairchild Semiconductor |
| FAN6754A | Highly Integrated Green- Mode PWM Controller | Fairchild Semiconductor |
| 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 |