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FSDM07652R Datasheet(PDF) 1 Page - Fairchild Semiconductor

Part No. FSDM07652R
Description  Green Mode Fairchild Power Switch (FPS)
Download  20 Pages
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Maker  FAIRCHILD [Fairchild Semiconductor]
Homepage  http://www.fairchildsemi.com
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FSDM07652R Datasheet(HTML) 1 Page - Fairchild Semiconductor

 
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©2005 Fairchild Semiconductor Corporation
www.fairchildsemi.com
Rev.1.0.6
Features
• Internal Avalanche Rugged Sense FET
• Advanced Burst-Mode operation consumes under 1 W at
240VAC & 0.5W load
• Precision Fixed Operating Frequency (66kHz)
• Internal Start-up Circuit
• Pulse by Pulse Current Limiting
• Abnormal Over Current Protection (AOCP)
• Over Voltage Protection (OVP)
• Over Load Protection (OLP)
• Internal Thermal Shutdown Function (TSD)
• Auto-Restart Mode
• Under Voltage Lock Out (UVLO) with hysteresis
• Low Operating Current (2.5mA)
Built-in Soft Start
Application
• SMPS for LCD monitor and STB
• Adaptor
Description
The FSDM07652R is an integrated Pulse Width Modulator
(PWM) and Sense FET 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
combine an avalanche rugged Sense FET 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 discrete MOSFET and PWM controller solution, it can
reduce total cost, component count, size and weight simulta-
neously increasing efficiency, productivity, and system
reliability. This device is a basic platform well suited for cost
effective designs of flyback converters.
Table 1. Notes: 1. Typical continuous power in a non-ven-
tilated enclosed adapter measured at 50
°C ambient. 2.
Maximum practical continuous power in an open frame
design at 50
°C ambient. 3. 230 VAC or 100/115 VAC with
doubler.
Typical Circuit
Figure 1. Typical Flyback Application
OUTPUT POWER TABLE
PRODUCT
230VAC
±15%(3)
85-265VAC
Adapt-
er(1)
Open
Frame(2)
Adapt-
er(1)
Open
Frame(2)
FSDM0565R
60W
70W
50W
60W
FSDM07652R
70W
80W
60W
70W
Drain
Source
Vstr
Vfb
Vcc
PWM
AC
IN
DC
OUT
FSDM07652R
Green Mode Fairchild Power Switch (FPSTM)


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