FSDL321 Fairchild Semiconductor, FSDL321 Datasheet - Page 7

• Manufacturer Part Number: FSDL321
• Description: IC SWIT PWM GREEN CM OVP HV 8DIP
• Manufacturer: Fairchild Semiconductor

Specifications of FSDL321

• Output Isolation: Isolated
• Frequency Range: 45 ~ 55kHz
• Voltage - Input: 8 ~ 20 V
• Voltage - Output: 650V
• Power (watts): 17W
• Operating Temperature: 25°C ~ 140°C
• Package / Case: 8-DIP (0.300", 7.62mm)
• Power Switch Family: FSDL321
• Power Switch On Resistance: 14Ohm
• Output Current: 2A
• Number Of Outputs: Single
• Mounting: Through Hole
• Supply Current: 3mA
• Package Type: PDIP
• Operating Temperature (min): -25C
• Operating Temperature (max): 85C
• Operating Temperature Classification: Commercial
• Pin Count: 8
• Power Dissipation: 1.4W
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: FSDL321_NL; FSDL321_NL

Comparison Between FSDM311 and FSDx321
Function
Soft-Start
External Current Limit
Frequency Modulation
Burst Mode Operation
Drain Creepage at
Package
15mS
not applicable
not applicable
Yes-built into
controller
7.62mm
FSDM311
15mS
Programmable of
default current limit
±1.5KHz @50KHz
±3.0KHz @100KHz
Yes-built into
controller
7.62mm
FSDx321
• Gradually increasing current limit
• Improve light load efficiency
• Reduces no-load consumption
• Transformer audible noise reduction
• Eliminates external components used
• Reduces or eliminates output
• Smaller transformer
• Allows power limiting (constant over-
• Allows use of larger device for lower
• Reduced conducted EMI
• Greater immunity to arcing as a result
during soft-start further reduces peak
current and voltage component
stresses
for soft-start in most applications
overshoot
load power)
losses and higher efficiency.
of build-up of dust, debris and other
contaminants
FSDx321 Advantages
FSDH321, FSDL321
7