L4986

Active
Design Win

Continuous conduction mode (CCM) PFC controller with high voltage startup and power good

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Product overview

Description

The L4986 is a peak current-mode PFC controller for boost converter with a proprietary multiplier “emulator” which in addition to the innovative THD optimizers guarantee very low Total Harmonic Distortion (THD) performance in all operating conditions. The device comes in a pin SO package and offers a high performance/low-component count solution for CCM-operated boost PFC pre-regulators in EN61000-3-2 and JEIDA-MITI compliant applications, in a power range that spans from few hundred W to some kW. The device, thanks to a proprietary off-time modulator, operates in quasi-fixed frequency in all operating conditions. Two options are available, 65 kHz for A and 130 kHz for B.
The 800 V high voltage start-up block includes also the circuitry to discharge the X-capacitors of the EMI filter to a safe level. This allows the unit to meet safety regulation (such as IEC 61010-1 or IEC 62368-1) without using the traditional discharge resistor in parallel to the X-capacitors.
The device features low consumption and disable functions allowing usage in applications supposed to comply even with the latest energy saving requirements issued by Energy Star, the Department of Energy (DoE) in the United States, the European Code of Conduct, the European Union’s Ecodesign Directive, and other guidelines.
In addition to an overvoltage protection able to keep the output voltage under control during transient conditions, the IC is provided also with a protection against feedback loop failures or erroneous settings and boost inductor saturation. The brownout protection function allows to design medical equipment according to the latest regulations driven by IEC 60601-1-2 which requires the output regulation in case of mains dips lasting up to 500 msec. Soft-start limits the peak current.
The PG_IN is an adjustable input comparator suitable for monitoring the PFC output voltage and accordingly driving a logic signal exiting from PG_OUT pin. The totem-pole output stage, capable of 0.7 A source and 1.5 A sink current, is suitable for big MOSFET or IGBT drive.
  • All features

    • Peak current mode CCM-operated
    • 800 V high voltage startup with integrated input voltage sensing
    • Active input filter capacitor discharge
    • Proprietary multiplier “emulator” with minimum THD of line current in all operating conditions (CCM and DCM)
    • Extremely few external components
    • Protections: feedback loop failure, OVP, OCP, inductor saturation, brown-in, brownout (compliant to medical SMPS standards)
    • Inductor current sense
    • Disable and low consumption function
    • In-rush current monitoring
    • Soft-start for smooth startup
    • 1.2% (@ Tj = 25 °C) internal reference voltage
    • 65 kHz (A version) and 130 kHz (B version) switching frequency
    • PGOOD_OUT and adjustable PGOOD_IN
    • SSOP10 package

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All tools & software

    • Part number
      Status
      Description
      Type
      Supplier

      EVL4986-350W

      Active

      Low-THD 350W CCM-PFC pre-regulator based on L4986

      AC-DC Converter ST
      EVL4986-350W

      Description:

      Low-THD 350W CCM-PFC pre-regulator based on L4986

      EVL4986A-1KWBL

      Active

      Low THD-High Efficiency, 1KW Bridgeless CCM-PFC pre-regulator based on L4986A

      AC-DC Converter ST
      EVL4986A-1KWBL

      Description:

      Low THD-High Efficiency, 1KW Bridgeless CCM-PFC pre-regulator based on L4986A

EDA Symbols, Footprints and 3D Models

STMicroelectronics - L4986

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3D models

Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
L4986A
Active
SSOP 10 Industrial Ecopack2
L4986ATR
Active
SSOP 10 Industrial Ecopack2
L4986B
Active
SSOP 10 Industrial Ecopack2
L4986BTR
Active
SSOP 10 Industrial Ecopack2

L4986A

Package:

SSOP 10

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SSOP 10

Grade

Industrial

RoHS Compliance Grade

Ecopack2

L4986ATR

Package:

SSOP 10

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SSOP 10

Grade

Industrial

RoHS Compliance Grade

Ecopack2

L4986B

Package:

SSOP 10

Material Declaration**:

Marketing Status

Active

Package

SSOP 10

Grade

Industrial

RoHS Compliance Grade

Ecopack2

L4986BTR

Package:

SSOP 10

Material Declaration**:

Marketing Status

Active

Package

SSOP 10

Grade

Industrial

RoHS Compliance Grade

Ecopack2

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

Sample & Buy

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Part Number
Order from distributors
Order from ST
Marketing Status
ECCN (US)
ECCN (EU)
Packing Type
Package
Temperature (°C) Country of Origin
Budgetary Price (US$)*/Qty
min
max
L4986ATR No availability of distributors reported, please contact our sales office
Active
EAR99 NEC Tape and Reel SSOP 10 - - CHINA
L4986A Available at 3 distributors

Distributor availability ofL4986A

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 500 1 Buy from Distributor
MOUSER WORLDWIDE 500 1 Buy from Distributor
Farnell Element14 EUROPE 300 1 Buy from Distributor

Distributor reported inventory date: 2022-08-11

Distributor Name

DIGIKEY

Stock

500

Min.Order

1

Region

WORLDWIDE Buy from Distributor

MOUSER

Stock

500

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Farnell Element14

Stock

300

Min.Order

1

Distributor reported inventory date: 2022-08-11

Active
EAR99 NEC Tube SSOP 10 - - CHINA
L4986BTR No availability of distributors reported, please contact our sales office
Active
EAR99 NEC Tape and Reel SSOP 10 - - CHINA
L4986B Available at 3 distributors

Distributor availability ofL4986B

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 500 1 Buy from Distributor
MOUSER WORLDWIDE 500 1 Buy from Distributor
Farnell Element14 EUROPE 300 1 Buy from Distributor

Distributor reported inventory date: 2022-08-11

Distributor Name

DIGIKEY

Stock

500

Min.Order

1

Region

WORLDWIDE Buy from Distributor

MOUSER

Stock

500

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Farnell Element14

Stock

300

Min.Order

1

Distributor reported inventory date: 2022-08-11

Active
EAR99 NEC Tube SSOP 10 - - CHINA

L4986ATR Active

Package:
SSOP 10
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

L4986ATR

ECCN (EU):

NEC

Packing Type:

Tape and Reel

Operating Temperature (°C)

Min:

-

Max:

-

Country of Origin:

CHINA

No availability of distributors reported, please contact our sales office

L4986A Active

Package:
SSOP 10
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

L4986A

ECCN (EU):

NEC

Packing Type:

Tube

Operating Temperature (°C)

Min:

-

Max:

-

Country of Origin:

CHINA

Distributor availability ofL4986A

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 500 1 Buy from Distributor
MOUSER WORLDWIDE 500 1 Buy from Distributor
Farnell Element14 EUROPE 300 1 Buy from Distributor

Distributor reported inventory date: 2022-08-11

Distributor Name

DIGIKEY

Stock

500

Min.Order

1

Region

WORLDWIDE Buy from Distributor

MOUSER

Stock

500

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Farnell Element14

Stock

300

Min.Order

1

Distributor reported inventory date: 2022-08-11

L4986BTR Active

Package:
SSOP 10
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

L4986BTR

ECCN (EU):

NEC

Packing Type:

Tape and Reel

Operating Temperature (°C)

Min:

-

Max:

-

Country of Origin:

CHINA

No availability of distributors reported, please contact our sales office

L4986B Active

Package:
SSOP 10
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

L4986B

ECCN (EU):

NEC

Packing Type:

Tube

Operating Temperature (°C)

Min:

-

Max:

-

Country of Origin:

CHINA

Distributor availability ofL4986B

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 500 1 Buy from Distributor
MOUSER WORLDWIDE 500 1 Buy from Distributor
Farnell Element14 EUROPE 300 1 Buy from Distributor

Distributor reported inventory date: 2022-08-11

Distributor Name

DIGIKEY

Stock

500

Min.Order

1

Region

WORLDWIDE Buy from Distributor

MOUSER

Stock

500

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Farnell Element14

Stock

300

Min.Order

1

Distributor reported inventory date: 2022-08-11

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(*) Suggested Resale Price (USD) per defined quantity for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors