www.fairchildsemi.com
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
• Improved Pulse by Pulse Current Limiting
• 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 FSDM07652RB is an integrated Pulse Width Modulator
(PWM) and Sense FET specifically designed for high perfor-
mance 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 con-
trol block. The PWM controller includes integrated fixed fre-
quency 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 MOS-
FET and PWM controller solution, it can reduce total cost,
component count, size and weight simultaneously increasing ef-
ficiency, productivity, and system reliability. This device is a
basic platform well suited for cost effective designs of fly-
back converters.
Table 1. Maximum Output Power
Notes:
1. Typical continuous power in a non-ventilated 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)
FSDM0565RB
60W
70W
50W
60W
FSDM07652RB
70W
80W
60W
70W
Drain
Source
Vstr
Vfb
Vcc
PWM
AC
IN
DC
OUT
FSDM07652RB
Green Mode Fairchild Power Switch (FPS
TM
)
51
Summary of Contents for DW9937S
Page 1: ...SERVICE MANUAL DW9937S Ver 0 0 ...
Page 3: ...1 ...
Page 4: ...2 ...
Page 5: ...3 ...
Page 7: ...EXPLODED VIEW 5 5 ...
Page 15: ...14 13 ...
Page 16: ...15 14 ...
Page 17: ...16 15 ...
Page 18: ...17 IS2 16 ...
Page 22: ...MITSUMI I2 C BUS Control 5 Input 2 Output AV Switch MM1313 Equivalent Block Diagram 20 ...
Page 70: ...FSDM07652RB Package Dimensions TO 220F 6L Forming 68 ...
Page 74: ...72 ...
Page 75: ...11 Terminal for External Connection Outline Drawing 73 ...
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