SRK2000A AC-DC Converters by STMicroelectronics

Synchronous rectifier smart driver for LLC resonant converters

Status: Active
Series: SRK2000A
RoHS: Compliant
View Datasheet Manufacturer Site View Pricing & Stock

The SRK2000A smart driver implements a control scheme specific to secondary side synchronous rectification in LLC resonant converters that use a transformer with center tap secondary winding for full wave rectification. It provides two high current gate drive outputs, each capable of driving one or more N-channel Power MOSFETs. Each gate driver is controlled separately and an interlocking logic circuit prevents the two synchronous rectifier MOSFETs from conducting simultaneously. The control scheme in this IC allows for each synchronous rectifier to be switched on as the corresponding half-winding starts conducting and switched off as its current goes to zero. The SRK2000A device implements matched turn-off MOSFET thresholds. A unique feature of this IC is its intelligent automatic sleep mode. It allows the detection of a low-power operating condition for the converter and puts the IC into a low consumption sleep mode where gate driving is stopped and quiescent consumption is reduced. In this way, converter efficiency improves at light load, where synchronous rectification is no longer beneficial. The IC automatically exits sleep mode and restarts switching as it recognizes that the load for the converter has increased. A noticeable feature is the very low external component count required.

Prices starting from US$1.05


Distributor Starting From Stock
Logo for Newark Electronics Newark Electronics US$1.05
828
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Logo for element14 element14 US$1.48
249
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Logo for Future Electronics Future Electronics US$1.35
-
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Logo for Avnet America Avnet America US$1.29
-
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Features

Secondary side synchronous rectifier controller optimized for LLC resonant converters
Protection against current reversal
Safe management of load transient, light load and startup condition
Matched turn-off thresholds
Intelligent automatic sleep mode at light load
Dual gate driver for N-channel MOSFETs with 1 A source and 3.5 A sink drive current
Operating voltage range 4.5 to 32 V
Programmable UVLO with hysteresis
250 µA quiescent consumption
Operating frequency up to 500 kHz
Available in SO-8 package

Alternative Descriptions

Sync Rectifier Driver, -40 To 150Deg C | Newark Electronics
SYNCHRONOUS RECTIFIER DRIVER, SOIC-8 | element14
Synchronous Rectifier Smart Driver 8-Pin SOIC Tube | Avnet America


Frequently Asked Questions

Where can I find additional details, specifications and documents for a SRK2000A?

Additional datasheets, footprints and schematics for SRK2000A are listed on our Part Details page. You can also find images and similar parts to SRK2000A on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for SRK2000A on our Product Comparison page. Access via the 'View Pricing & Stock' button to view SRK2000A price breaks, MOQs, lead times, inventory and SKUs from distributors.

What category does SRK2000A fall under?

The SRK2000A is listed under Power Management > AC-DC Converters > Synchronous Rectification Controllers.

Can I view similar or alternative parts?

You can view similar parts to SRK2000A when available in the Synchronous Rectification Controllers 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 SRK2000A you can contact the distributor directly for product support, shipping queries etc.

Is the SRK2000A RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by STMicroelectronics.

Which authorised distributors for SRK2000A have stock available?

Authorised distributors including Newark Electronics, element14, Farnell, Future Electronics and Avnet America have stock available or on a lead time for SRK2000A.

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

Stock availability and lead times will be displayed for SRK2000A often in real-time on the comparison pages.

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