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FSCM0565RD Datasheet

  • FSCM0565RD

  • Green Mode Fairchild Power Switch (FPS)

  • 20頁

  • FAIRCHILD

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www.fairchildsemi.com
FSCM0765R
Features
Green Mode Fairchild Power Switch (FPS
TM
)
鈥?Internal Avalanche Rugged SenseFET
鈥?Low Start-up Current (max 40uA)
鈥?Low Power Consumption under 1 W at 240VAC and
0.4W Load
鈥?Precise Fixed Operating Frequency (66kHz)
鈥?Frequency Modulation for low EMI
鈥?Pulse by Pulse Current Limiting (Adjustable)
鈥?Over Voltage Protection (OVP)
鈥?Over Load Protection (OLP)
鈥?Thermal Shutdown Function (TSD)
鈥?Auto-Restart Mode
鈥?Under Voltage Lock Out (UVLO) with Hysteresis
鈥?Built-in Soft Start (15ms)
OUTPUT POWER TABLE
230VAC
鹵15%
(3)
PRODUCT
FSCM0565RJ
FSCM0765RJ
FSCM0565RI
FSCM0765RI
FSCM0565RG
FSCM0765RG
Adapt-
er
(1)
50W
65W
50W
65W
70W
85W
Open
Frame
(2)
65W
70W
65W
70W
85W
95W
85-265VAC
Adapt-
er
(1)
40W
50W
40W
50W
60W
70W
Open
Frame
(2)
50W
60W
50W
60W
70W
85W
Table 1. Maximum Output Power
Notes:
1. Typical continuous power in a non-ventilated enclosed
adapter measured at 50擄C ambient.
2. Maximum practical continuous power in an open-frame
design at 50擄C ambient.
3. 230 VAC or 100/115 VAC with doubler.
Application
鈥?SMPS for VCR, SVR, STB, DVD and DVCD
鈥?Adaptor
鈥?SMPS for LCD Monitor
Related Application Notes
鈥?/div>
AN-4137:
Design Guidelines for Off-line Flyback
Converters Using Fairchild Power Switch (FPS)
鈥?/div>
AN-4140:
Transformer Design Consideration for off-line
Flyback Converters using Fairchild Power Switch
鈥?/div>
AN-4141:
Troubleshooting and Design Tips for Fairchild
Power Switch Flyback Applications
鈥?/div>
AN-4148:
Audible Noise Reduction Techniques for FPS
Applications
Typical Circuit
DC
OUT
AC
IN
Description
The FSCM0765R is an integrated Pulse Width Modulator
(PWM) and SenseFET specifically designed for high
performance offline Switch Mode Power Supplies (SMPS)
with minimal external components. This device is an
integrated high voltage power switching regulator which
combines an avalanche rugged SenseFET with a current
mode PWM control block. The PWM controller includes
integrated fixed frequency oscillator, under voltage lockout,
leading edge blanking (LEB), optimized gate driver, internal
soft start, temperature compensated precise current sources
for a loop compensation, and self protection circuitry.
Compared with a discrete MOSFET and PWM controller
solution, it can reduce total cost, component count, size
,
and
weight while simultaneously increasing efficiency, productivity,
and system reliability. This device is a basic platform well
suited for cost effective designs of flyback converters.
PWM
I
limit
Vfb
Vcc
Drain
GND
Figure 1. Typical Flyback Application
Rev.1.1.0
漏2005 Fairchild Semiconductor Corporation

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