STMicroelectronics L4986ATR
Manufacturer No:
L4986ATR
Manufacturer:
STMicroelectronics
Package:
Description:
Continuous conduction mode (CCM) PFC controller with high voltage startup and power good
Quantity:
In Stock :7995
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Shipped from：HK Warehouse
Expected Shipping：Thu, May 28 - Fri, May 29, 2026
Lead Time：Inquire about availability
Date Code：Within 2 Years
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L4986ATR Information
STMicroelectronics L4986ATR technical specifications, attributes, parameters and parts with similar specifications to STMicroelectronics L4986ATR.
- Type
- Parameter
- ECCN US
- EAR99
- ECCN EU
- NEC
- Packing Type
- Tape And Reel
- RoHS Status
- Grade
- Industrial
- Package Name
- SSOP 10
- ECCN US
- EAR99
- ECCN EU
- NEC
- Packing Type
- Tape And Reel
- RoHS Status
- Type
- Parameter
- Grade
- Industrial
- Package Name
- SSOP 10
Download datasheets and manufacturer documentation for STMicroelectronics L4986ATR.
Data sheet:
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.
- 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
AIChipLink – Your Trusted Electronic Components Distributor
12.28 M
Listed Part Number
3,000+
Leading Manufacturers
4.9 M
In-stock SKU
15,000+
Warehouse Area(㎡)
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