
2005 Fairchild Semiconductor Corporation
www.fairchildsemi.com
Rev.1.0.8
FPSTM is a trademark of Fairchild Semiconductor Corporation.
Features
Internal Avalanche Rugged Sense FET
Consumes only 0.65W at 240VAC & 0.3W load with
Advanced Burst-Mode Operation
Frequency Modulation for EMI Reduction
Precision Fixed Operating Frequency
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 Lockout (UVLO)
Low Operating Current (3mA)
Adjustable Peak Current Limit
Built-in Soft Start
Applications
SMPS for VCR, SVR, STB, DVD & DVCD Player
SMPS for Printer, Facsimile & Scanner
Adapter for Camcorder
Related Application Notes
AN-4137, 4141, 4147(Flyback) / AN-4134(Forward)
Description
Each product in the FSDx0365RN (x for L, M) family 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. Both devices are integrated high voltage power
switching regulators which combine an avalanche rugged
Sense FET with a current mode PWM control block. The inte-
grated PWM controller features include: a fixed oscillator with
frequency modulation for reduced EMI, Under Voltage Lock
Out (UVLO) protection, Leading Edge Blanking (LEB), an
optimized gate turn-on/turn-off driver, Thermal Shut Down
(TSD) protection, Abnormal Over Current Protection (AOCP)
and temperature compensated precision current sources for
loop compensation and fault protection circuitry. When com-
pared to a discrete MOSFET and controller or RCC switching
converter solution, the FSDx0365RN devices reduce total
component count, design size, weight while increasing effi-
ciency, productivity and system reliability. Both devices pro-
vide a basic platform that is well suited for the design of cost-
effective flyback converters.
Notes:
1. Typical continuous power in a non-ventilated enclosed
adapter with sufficient drain pattern as a heat sinker, at
50
°C ambient.
2. Maximum practical continuous power in an open frame
design with sufficient drain pattern as a heat sinker, at 50
°C
ambient.
3. 230 VAC or 100/115 VAC with doubler.
Typical Circuit
OUTPUT POWER TABLE
PRODUCT
230VAC
±15%(3)
85-265VAC
Adapt-
er(1)
Open
Frame(2)
Adapt-
er(1)
Open
Frame(2)
FSDL321
11W
17W
8W
12W
FSDH321
11W
17W
8W
12W
FSDL0165RN
13W
23W
11W
17W
FSDM0265RN
16W
27W
13W
20W
FSDH0265RN
16W
27W
13W
20W
FSDL0365RN
19W
30W
16W
24W
FSDM0365RN
19W
30W
16W
24W
FSDL321L
11W
17W
8W
12W
FSDH321L
11W
17W
8W
12W
FSDL0165RL
13W
23W
11W
17W
FSDM0265RL
16W
27W
13W
20W
FSDH0265RL
16W
27W
13W
20W
FSDL0365RL
19W
30W
16W
24W
FSDM0365RL
19W
30W
16W
24W
Drain
Source
Vstr
Vfb
Vcc
PWM
AC
IN
DC
OUT
Ipk
FSDL0365RN, FSDM0365RN
Green Mode Fairchild Power Switch (FPSTM)