FSDM0265RNB ,SMPS Power Switch, Built-in Soft Start improved (Green)FeaturesOUTPUT POWER TABLE• Internal Avalanche Rugged Sense FET(3)230VAC ±15% 85-265VAC• Consumes o ..
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FSDM0265RNB
SMPS Power Switch, Built-in Soft Start improved (Green)
Features Internal Avalanche Rugged Sense FET Consumes only 0.65W at 240VAC & 0.3W load with
Advanced Burst-Mode Operation Frequency Modulation for low EMI Precision Fixed Operating Frequency Internal Start-up Circuit Pulse by Pulse Current Limiting Over Voltage Protection Over Load Protection Internal Thermal Shutdown Function Auto-Restart Mode Under V oltage Lockout Low Operating Current (3mA) Adjustable Peak Current Limit Built-in Soft Start
Applications SMPS for VCR, SVR, STB, DVD & DVCD SMPS for Printer, Facsimile & Scanner Adaptor for Camcorder
DescriptionThe FSDM0265RNB is an integrated Pulse Width Modula-
tor (PWM) and Sense FET specifically designed for high
performance offline Switch Mode Power Supplies (SMPS)
with minimal external components. The device is an inte-
grated high voltage power switching regulator which com-
bines an avalanche rugged Sense FET with a current mode
PWM control block. The integrated PWM controller features
include: a fixed oscillator with frequency modulation for
reduced EMI, Under Voltage Lock Out (UVLO) protection,
Leading Edge Blanking (LEB), optimized gate turn-on/turn-
off driver, Thermal Shut Down (TSD) protection and tem-
perature 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 solution, the
FSDM0265RNB reduces total component count, design size,
weight and at the same time increase efficiency, productivity,
and system reliability. The 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
