FSDM311A AC-DC Power Conversion by ON Semiconductor

650V Integrated Power Switch for 8Watt offline flyback converters


The FSDM311A consists of an integrated Pulse Width Modulator (PWM) and SenseFET, and is specifically designed for high-performance, off-line, Switch-Mode Power Supplies (SMPS) with minimal external components. This device is an integrated high-voltage power switching regulator that combines a VDMOS SenseFET with a voltage-mode PWM control block. The integrated PWM controller features include a fixed oscillator, Under-Voltage Lockout (UVLO) protection, Leading-Edge Blanking (LEB), an optimized gate turn-on/turn-off driver, Thermal Shutdown (TSD) protection, and temperature-compensated precision-current sources for loop compensation and fault protection circuitry. When compared to a discrete MOSFET and controller or RCC switching converter solution, the FSDM311A device reduces total component count and design size and weight, while increasing efficiency, productivity, and system reliability. This device provides a basic platform that is well suited for the design of cost-effective flyback converters.

Where to Buy

Prices starting from US$0.58

Distributor Stock
Logo for Farnell
Farnell
from US$0.58
No stock
Buy Now
Logo for element14
element14
from US$0.59
-
Buy Now
Logo for Newark Electronics
Newark Electronics
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-
Buy Now

Features

Internal Avalanche-Rugged SenseFET
Precision Fixed Operating Frequency: 67KHz
Consumes Under 0.2W at 265VAC & No Load with Advanced Burst-Mode Operation
Internal Start-up Circuit
Pulse-by-Pulse Current Limiting
Over-Voltage Protection (OVP)
Overload Protection (OLP)
Internal Thermal Shutdown Function (TSD)
Auto-Restart Mode
Under-Voltage Lockout (UVLO) with Hysteresis
Built-in Soft-Start
Secondary-Side Regulation
Applications
Motion Control - Home Appliance
Smart Grid
End Products
Motion Control - Industrial Motor
Smart Meter

Specifications

Description FSDM311A
Compliance Pb-free Halide free
Control Mode Current Mode
fsw Typ (kHz) 67
RDS(ON) Typ (Ω) 14
V(BR)DSS Max (V) 650
IPeak (mA) 500
HV Start-up Min (V) Yes
UVLO Yes
Short Circuit Protection Yes
Latch No
Package Type PDIP-8

Alternative Descriptions

PWR LOAD SWITCH, LOW SIDE, 20V, DIP-8 | element14
Pwr Load Switch, Low Side, 20V, Dip-8 | Newark Electronics


Frequently Asked Questions

Where can I find additional details, specifications and documents for a FSDM311A?

Additional datasheets, footprints and schematics for FSDM311A are listed on our Part Details page. You can also find images and similar parts to FSDM311A on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for FSDM311A on our Product Comparison page. Access via the 'View Pricing & Stock' button to view FSDM311A price breaks, MOQs, lead times, inventory and SKUs from distributors.

What category does FSDM311A fall under?

The FSDM311A is listed under Power Management > AC-DC Power Conversion > Offline Regulators.

Can I view similar or alternative parts?

You can view similar parts to FSDM311A when available in the Offline Regulators range under the specifications section at the bottom of the details page.

Who can I contact for technical support of the product?

Submit any questions directly to the customer support team of the distributor listing the product. For the FSDM311A you can contact the distributor directly for product support, shipping queries etc.

Is the FSDM311A RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by ON Semiconductor.

Which authorised distributors for FSDM311A have stock available?

Authorised distributors including element14, Farnell and Newark Electronics have stock available or on a lead time for FSDM311A.

How do I check stock and lead times for all distributors?

Stock availability and lead times will be displayed for FSDM311A often in real-time on the comparison pages.

What if I can't find stock of FSDM311A?

You can fill out our help required form which you can use to request a quote for FSDM311A from some of our verified obsolescence suppliers. Alternatively, contact us via our web chat in the bottom left of your screen and one of our team will try to help.

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