FSDL321 Fairchild Semiconductor, FSDL321 Datasheet - Page 2

• 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

FSDH321, FSDL321
Internal Block Diagram
2
V
I
pk
FB
3
4
Vovp
V
V
I
BURL
delay
SD
Vcc
TSD
Vcc
/V
V
BURH
BURH
Vcc
+
-
I
FB
2.5R
R
Figure 2. Functional Block Diagram of FSDx321
Normal
Burst
Vcc good
8V/12V
Vcc
Vcc
I
2
B_PEAK
Modulation
S
R
PWM
Freq.
OSC
Vcc good
Q
Q
Soft start
S
R
Q
Q
I
start
AOCP
Vref
Vstr
5
LEB
Internal
Vocp
driver
Bias
Gate
Drain
6,7,8
1
GND