SRK2001 AC-DC Converters by STMicroelectronics

Adaptive synchronous rectification controller for LLC resonant converter

Status: Active
Series: SRK2001
RoHS: Compliant
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The SRK2001 controller implements a control scheme specific for 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 directly driving one or more N-channel power MOSFET. Each gate driver is controlled separately and an interlock logic circuit prevents the two synchronous rectifier MOSFET from conducting simultaneously. The control scheme ensures that each synchronous rectifier is switched ON as the corresponding half-winding starts conducting and OFF as its current falls to zero. The turn-on logic with adaptive masking time and adaptive turn-off logic allow maximizing the conduction time of the SR MOSFET, eliminating the need for a parasitic inductance compensation circuit. The low consumption mode of the device allows meeting the most stringent requirements for converter power consumption in light-load and no-load conditions. A very low external component count is required when using this device.

Where to Buy

Prices starting from US$0.92

Distributor Stock
Logo for element14 Singapore
element14
from US$1.24
1,421
in stock
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Farnell
from US$1.22
1,421
in stock
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Logo for Newark
Newark Electronics
from US$1.44
608
in stock
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Logo for Avnet America
Avnet America
from US$0.92
0
in stock
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EBV Elektronik
-
0
in stock
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Logo for Avnet Silica
Avnet Silica
-
0
in stock
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Features

Secondary side synchronous rectification controller optimized for LLC resonant converter
Dual gate driver for N-channel MOSFET
Adaptive turn-off logic
Turn-on logic with adaptive masking time
Auto-compensation of parasitic inductance
Low consumption mode: 50 μA quiescent current
VCC operating voltage range 4.5 V to 32 V
High voltage drain-to-source Kelvin sensing for each SR MOSFET
35 ns total delay at turn-off
Protection against current reversal
Safe management of load transient, light-load and startup conditions
Intelligent automatic sleep mode at light-load with user programmable enter/exit load levels, with soft transitions and function disable
Programmable exit load levels from burst mode
Compatible with standard level MOSFET
SSOP10 package

Last 6 months Inventory & Pricing History


Resources







Alternative Descriptions

SYNC RECTIFICATION CTRL, -40 TO 150DEG C | element14
Synchronous Rectification Ctrl, 150Deg C | Newark Electronics
AC/DC Off Line Converter, Resonant, 4.5 V to 32 V, Isolated, 10 Pins, SSOP | Avnet America


Frequently Asked Questions

Where can I find additional details, specifications and documents for a SRK2001?

Additional datasheets, footprints and schematics for SRK2001 are listed on our Part Details page. You can also find images and similar parts to SRK2001 on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for SRK2001 on our Product Comparison page. Access via the 'View Pricing & Stock' button to view SRK2001 price breaks, MOQs, lead times, inventory and SKUs from distributors.

What category does SRK2001 fall under?

The SRK2001 is listed under Power Management > AC-DC Converters > Synchronous Rectification Controllers.

Can I view similar or alternative parts?

You can view similar parts to SRK2001 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 SRK2001 you can contact the distributor directly for product support, shipping queries etc.

Is the SRK2001 RoHS compliant?

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

Which authorised distributors for SRK2001 have stock available?

Authorised distributors including element14, Farnell, Newark Electronics, Avnet America and EBV Elektronik have stock available or on a lead time for SRK2001.

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

Stock availability and lead times will be displayed for SRK2001 often in real-time on the comparison pages.

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