FSQ321L Fairchild Semiconductor, FSQ321L Datasheet - Page 3

• Manufacturer Part Number: FSQ321L
• Description: IC SWIT PWM GREEN OVP UVLO 8LSOP
• Manufacturer: Fairchild Semiconductor

Specifications of FSQ321L

• Output Isolation: Isolated
• Frequency Range: 84 ~ 95.2kHz
• Voltage - Input: 9 ~ 20 V
• Voltage - Output: 650V
• Power (watts): 10W
• Operating Temperature: -40°C ~ 150°C
• Package / Case: 8-SOP, 8-LSOP
• Power Switch Family: FSQ321
• Power Switch On Resistance: 14Ohm
• Output Current: 530mA
• Number Of Outputs: Single
• Mounting: Surface Mount
• Supply Current: 3mA
• Package Type: LSOP
• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Operating Temperature Classification: Industrial
• Pin Count: 8
• Power Dissipation: 1.5W
• On Resistance (max): 19 Ohms
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 25 C
• Maximum Power Dissipation: 1500 mW
• Mounting Style: SMD/SMT
• Supply Voltage (max): 20 V
• Supply Voltage (min): 0 V
• On Time (max): 13.5 us
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

FSQ0365, FSQ0265, FSQ0165, FSQ321, FSQ311 Rev. 1.0.5
© 2006 Fairchild Semiconductor Corporation
Typical Circuit
Internal Block Diagram
Vfb
3
V
V
Sync
SD
ovp
V
6V
6V
CC
I
delay
V
ref
I
FB
0.35/0.55
V
Burst
AC
IN
3R
+
-
R
Sync
0.7V/0.2V
2.5μs time
Sync
delay
Soft-
Start
Figure 1. Typical Flyback Application
4
Figure 2. Functional Block Diagram
Vfb
TSD
PWM
PWM
+
-
V
Vcc
CC
good
Vstr
200ns
GND
LEB
Drain
OSC
3
S
R
S
R
Q
Q
Q
Q
FSQ0365RN Rev.00
Vstr
5
V
ref
V
CC
AOCP
good
V
O
driver
Gate
+
-
(1.1V)
V
Vcc
8V/12V
OCP
2
FSQ0365RN Rev.00
6
Drain
7
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8
1
GND