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FSDM0265RNB
Features
Green Mode Fairchild Power Switch (FPS
TM
)
鈥?Internal Avalanche Rugged Sense FET
鈥?Consumes only 0.65W at 240VAC & 0.3W load with
Advanced Burst-Mode Operation
鈥?Frequency Modulation for EMI Reduction
鈥?Precision Fixed Operating Frequency
鈥?Internal Start-up Circuit
鈥?Pulse-by-Pulse Current Limiting
鈥?Over Voltage Protection (OVP)
鈥?Over Load Protection (OLP)
鈥?Internal Thermal Shutdown Function (TSD)
鈥?Auto-Restart Mode
鈥?Under Voltage Lockout (UVLO)
鈥?Low Operating Current (3mA)
鈥?Adjustable Peak Current Limit
鈥?Built-in Soft Start
OUTPUT POWER TABLE
230VAC
鹵15%
(3)
PRODUCT
FSDM0265RNB
FSDL0365RNB
FSDM0365RNB
Adapt-
er
(1)
16W
19W
19W
Open
Frame
(2)
27W
30W
30W
85-265VAC
Adapt-
er
(1)
13W
16W
16W
Open
Frame
(2)
20W
24W
24W
Applications
鈥?SMPS for VCR, SVR, STB, DVD & DVCD Player
鈥?SMPS for Printer, Facsimile & Scanner
鈥?Adapter for Camcorder
Notes:
1. Typical continuous power in a non-ventilated enclosed
adapter with sufficient drain pattern as a heat sinker, at
50擄C ambient.
2. Maximum practical continuous power in an open frame
design with sufficient drain pattern as a heat sinker, at 50擄C
ambient.
3. 230 VAC or 100/115 VAC with doubler.
Typical Circuit
Related Application Notes
鈥?AN-4137, 4141, 4147(Flyback) / AN-4134(Forward)
Description
The FSDM0265RNB consists of an integrated Pulse Width
Modulator (PWM) and Sense FET, and is specifically
designed for high performance off-line Switch Mode Power
Supplies (SMPS) with minimal external components. This
devices is an integrated high voltage power switching regu-
lator which combines an avalanche rugged Sense FET with a
current mode PWM control block. The integrated PWM con-
troller features include: a fixed oscillator with frequency
modulation for reduced EMI, Under Voltage Lock Out
(UVLO) protection, Leading Edge Blanking (LEB), an opti-
mized gate turn-on/turn-off driver, Thermal Shut Down
(TSD) protection and temperature compensated precision
current sources for loop compensation and fault protection
circuitry. The FSDM0265RNB offers better performance in
Soft Start than FSDM0265RN. When compared to a discrete
MOSFET and controller or RCC switching converter solu-
tion, the FSDM0265RNB reduces total component count,
design size, weight while increasing efficiency, productivity
and system reliability. This device provides a basic platform
that is well suited for the design of cost-effective flyback
converters.
FPS
TM
is a trademark of Fairchild Semiconductor Corporation.
漏2005 Fairchild Semiconductor Corporation
AC
IN
DC
OUT
Vstr
Ipk
PWM
Vfb
Drain
Vcc
Source
Figure 1. Typical Flyback Application
Rev.1.0.4