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FSQ321LX on a board, in 3D

FSQ321LX

onsemi

-40℃~+85℃ 1.5W 55kHz~67kHz 650V 8V~20V Flyback Isolation Over Voltage Protection、Under Voltage Protection、Over Current Protection、Soft-start、Overtemperature protection (OTP)、Light load efficient mode、Under-voltage lockout、Quasi-resonant/valley switching、Leading edge blanking PWM Modulation Secondary-Side Feedback PDIP-8-GW AC-DC Controllers and Regulators ROHS

Extended
DatasheetJLCPCBLCSConsemi/FSQ321LX
Category
AC DC Controllers And Regulators
Package
PDIP-8-GW
Pins
8

Overview

The FSQ321LX is an AC DC Controllers And Regulator made by onsemi in a PDIP-8-GW package with 8 pins. -40℃~+85℃ 1.5W 55kHz~67kHz 650V 8V~20V Flyback Isolation Over Voltage Protection、Under Voltage Protection、Over Current Protection、Soft-start、Overtemperature protection (OTP)、Light load efficient mode、Under-voltage lockout、Quasi-resonant/valley switching、Leading edge blanking PWM Modulation Secondary-Side Feedback PDIP-8-GW AC-DC Controllers and Regulators ROHS.

PCBKit's library has its KiCad symbol (EasyEDA_Cloud:FSQ311L, from EasyEDA) and its footprint (EasyEDA_Cloud:SMD-8_L9.6-W6.4-P2.54-LS9.6-BL, from EasyEDA), ready for a KiCad board. JLCPCB lists it (part C899411).

Symbol

GND1VCC2VFB3SYNC4VSTR5DRAIN6DRAIN7DRAIN8
EasyEDA_Cloud:FSQ311LFrom EasyEDA

Footprint

12345678
EasyEDA_Cloud:SMD-8_L9.6-W6.4-P2.54-LS9.6-BLFrom EasyEDA

Parameters

10
Features
Over Voltage Protection, Under Voltage Protection, Over Current Protection, Soft-start, Overtemperature protection (OTP), Light load efficient mode, Under-voltage lockout, Quasi-resonant/valley switching, Leading edge blanking
Feedback System
Secondary-Side Feedback
Frequency - Switching
55kHz~67kHz
Isolation
Isolation
Operating Temperature
-40℃~+85℃
Pd - Power Dissipation
1.5W
Topology
Flyback
Voltage - Breakdown
650V
Voltage - Supply
8V~20V
Working Mode
PWM Modulation

Order codes

1

Pinout

8
The pins of the FSQ321LX
PinNameType
1GNDUnspecified
2VCCUnspecified
3VFBUnspecified
4SYNCUnspecified
5VSTRUnspecified
6DRAINUnspecified
7DRAINUnspecified
8DRAINUnspecified

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Questions

Is there a KiCad symbol and footprint for the FSQ321LX?

Yes. The symbol is EasyEDA_Cloud:FSQ311L and the footprint EasyEDA_Cloud:SMD-8_L9.6-W6.4-P2.54-LS9.6-BL, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the FSQ321LX?

PDIP-8-GW, with 8 pins. Its footprint is drawn on this page.

Where is the FSQ321LX datasheet?

onsemi publishes it: the Datasheet link on this page opens it.

Where can I order the FSQ321LX?

JLCPCB lists it as part C899411, with 0 in stock; the sellers' links on this page open their listings.

What can replace the FSQ321LX?

Parts like it in the library: the FSQ0365RLX by onsemi, the DPA423GN-TL by POWER INTEGRATIONS, the TOP221GN-TL by POWER INTEGRATIONS and the TOP224GN-TL by POWER INTEGRATIONS. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Parts like it

7