FSQ321L - Fairchild

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

FSQ321L
Manufacturer

Fairchild
ChipWorker Part#

CW90399893
Category

AC to DC Converter, AC/DC Power Module
Package

LSOP-8
Description

Power Switch 1Out 0.53A 14Ω 8Pin LSOP Rail
Documentation

Datasheet

FSQ321L Global Supplier

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FSQ321L Specifications

Attribute	Attribute Value

Part Number	FSQ321L
Manufacturer	Fairchild
ChipWorker Part#	CW90399893
Category	AC to DC Converter, AC/DC Power Module
Documentation	Datasheet
Mounting Style	Surface Mount
Number of Pins	8 Pin
Case/Package	LSOP-8
Power Rating	12 W
Number of Outputs	1 Output
Output Voltage	650 V
Output Current	0.53 A
Breakdown Voltage	650 V
Supply Current	3 mA
Power Dissipation	1.5 W
Switching Frequency	55kHz ~ 67kHz
Output Current (Min)	0.53 A
Operating Temperature (Max)	85 ℃
Operating Temperature (Min)	-40 ℃
Power Dissipation (Max)	1500 mW
Input Voltage	8V ~ 20V
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Size-Length	9.4 mm
Size-Width	6.6 mm
Size-Height	3.6 mm
Operating Temperature	-40℃ ~ 85℃
Product Lifecycle Status	Active
Packaging	Tube
RoHS	RoHS Compliant
Lead-Free Status	Lead Free
ECCN Code	EAR99

Product Description

Description
A Valley Switching Converter generally shows lower EMI and higher power conversion efficiency than a conventional hard-switched converter with a fixed switching frequency. The FSQ-series is an integrated Pulse-Width Modulation (PWM) controller and SenseFET specifically designed for valley switching operation with minimal external components. The PWM controller includes an integrated fixed-frequency oscillator, under-voltage lockout, Leading-Edge Blanking (LEB), optimized gate driver, internal soft-start, temperature-compensated precise current sources for loop compensation, and self-protection circuitry.
Features
■ Optimized for Valley Switching Converter (VSC)
■ Low EMI through Variable Frequency Control and Inherent Frequency Modulation
■ High Efficiency through Minimum Voltage Switching
■ Narrow Frequency Variation Range Over Wide Load and Input Voltage Variation
■ Advanced Burst-Mode Operation for Low Standby Power Consumption
■ Pulse-by-Pulse Current Limit
■ Protection Functions: Overload Protection (OLP), Over-Voltage Protection (OVP), Abnormal Over Current Protection (AOCP), Internal Thermal Shutdown (TSD)
■ Under-Voltage Lockout (UVLO) with Hysteresis
■ Internal Startup Circuit
■ Internal High-Voltage SenseFET: 650V
■ Built-in Soft-Start: 15ms
Applications
■ Power Supplies for DVP Player, DVD Recorder, Set-Top Box
■ Adapter
■ Auxiliary Power Supply for PC, LCD TV, and PDP TV

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- Vacuum packed
- Anti-static packaging
- Anti-vibration foam
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