© 2006 Fairchild Semiconductor Corporation www.fairchildsemi.com
FSCM0465R Green Mode Fairchild Power Switch (FPS™)
June 2006
FSCM0465R Rev. 1.0.1 1
FPS
TM
is a trademark of Fairchild Semiconductor Corporation.
FSCM0465R
Green Mode Fairchild Power Switch (FPS™)
Features
Internal Avalanche Rugged SenseFET
Low Start-up Current (max. 40µA)
Low Power Consumption; under 1W at 240VAC and
0.4W Load
Precise Fixed Operating Frequency (66kHz)
Frequency Modulation for Low EMI
Pulse-by-Pulse Current Limiting (Adjustable)
Over-Voltage Protection (OVP)
Overload Protection (OLP)
Thermal Shutdown Function (TSD)
Auto-Restart Mode
Under-Voltage Lock Out (UVLO) with Hysteresis
Built-in Soft-Start (15ms)
Applications
SMPS for VCR, SVR, STB, DVD, and DVCD
Adaptor
SMPS for LCD Monitor
Related Application Notes
AN-4137: Design Guidelines for Off-line Flyback
Converters Using Fairchild Power Switch (FPS)
AN-4140: Transformer Design Consideration for
Off-line Flyback Converters using Fairchild Power
Switch
AN-4141: Troubleshooting and Design Tips for
Fairchild Power Switch Flyback Applications
AN-4148: Audible Noise Reduction Techniques for
FPS Applications
Description
The FSCM0465R 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 that combines
an avalanche rugged
SenseFET with a current mode PWM control block. The
PWM controller includes an 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.
Ordering Information
Note:
1. WDTU: Forming Type
Product Number Package Pb-Free Marking Code BV
DSS
R
DS(ON)
Max.
Packing
Method
FSCM0465RJ D2-PAK-6L Yes
CM0465R 650V 2.6 Ω
Tube
FSCM0465RJX D2-PAK-6L Yes Tape & Reel
FSCM0465RIWDTU
(1)
I2-PAK-6L Yes Tube
FSCM0465RGWDTU
(1)
TO-220-6L Yes Tube
