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FAN6757 Datenblatt(PDF) 1 Page - Fairchild Semiconductor

Teilenummer FAN6757
Bauteilbeschribung  mWSaver PWM Controller
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Hersteller  FAIRCHILD [Fairchild Semiconductor]
Direct Link  http://www.fairchildsemi.com
Logo FAIRCHILD - Fairchild Semiconductor

FAN6757 Datenblatt(HTML) 1 Page - Fairchild Semiconductor

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November 2013
© 2013 Fairchild Semiconductor Corporation
www.fairchildsemi.com
FAN6757
• Rev. 1.0.1
FAN6757
— mWSaver® PWM Controller
Features
Single-Ended Topologies, such as Flyback and
Forward Converters
mWSaver® Technology
- Achieves Low No-Load Power Consumption:
<50 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
- 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)
- V
DD Under-Voltage Lockout (UVLO)
- V
DD Over-Voltage Protection (VDD OVP)
- Over-Temperature Protection (OTP)
- Current-Sense Short-Circuit Protection (SSCP)
Description
The FAN6757 is a next-generation Green Mode PWM
controller with innovative mWSaver® technology, which
dramatically
reduces
standby
and
no-load
power
consumption,
enabling
conformance
to
worldwide
Standby Mode efficiency guidelines.
An innovative AX-CAP
® method minimizes losses in the
EMI filter stage by eliminating X-cap discharge resistors
while meeting IEC61010-1 safety requirements.
Protections ensure safe operation of the power system
in various abnormal conditions. A proprietary frequency-
hopping function decreases EMI emission. 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,
FAN6757 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
Open-Frame SMPS for LCD TV, LCD Monitors,
Printers
Ordering Information
Part Number
Protections
(1)
Operating
Temperature Range
Package
Packing
Method
OLP
OVP
OTP
SSCP
FAN6757MRMX
A/R
L
L
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.


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