L4984DTR
  • Share:

STMicroelectronics L4984DTR

Manufacturer No:
L4984DTR
Manufacturer:
STMicroelectronics
Package:
Tape & Reel (TR)
Description:
IC PFC CTRLR CCM 10SSOP
Delivery:
Payment:
iso14001
iso45001
iso9001
iso13485

Product Introduction

Overview

The L4984DTR is a current-mode Power Factor Correction (PFC) controller produced by STMicroelectronics. It operates using line-modulated fixed-off-time (LM-FOT) control, enabling fixed-frequency operation for boost PFC converters in continuous conduction mode (CCM). This IC is packaged in a 10-pin SSOP package and is designed to provide a low-cost solution for CCM-operated boost PFC pre-regulators. It is compliant with EN61000-3-2 and JEIDA-MITI standards and is suitable for power ranges from a few hundred watts to over 1 kW.

The L4984DTR features a highly linear multiplier that reduces crossover distortion of the AC input current, allowing for wide-range mains operation with low Total Harmonic Distortion (THD). The output voltage is controlled by a voltage-mode error amplifier and an accurate internal voltage reference. The device also includes various protection features and a disable function for remote on/off control, making it compliant with the latest energy-saving requirements such as Blue Angel, ENERGY STAR, and Energy 2000.

Key Specifications

Parameter Min Typ Max Unit
Supply Voltage (VCC) 10.3 - 22.5 V
Turn-on Threshold (VCCOn) 11 12 13 V
Turn-off Threshold (VCCOff) 8.7 9.5 10.3 V
Internal Reference Voltage - 2.5 - V
Gate Driver Output Current - - 600 mA (source), 800 mA (sink) mA
Junction Temperature Range -40 - 150 °C
Storage Temperature Range -55 - 150 °C

Key Features

  • Line-modulated fixed-off-time (LM-FOT) control of CCM-operated PFC pre-regulators
  • Proprietary LM-FOT modulator for nearly fixed-frequency operation
  • Proprietary multiplier design for minimum THD of AC input current
  • Fast “bi-directional” input voltage feedforward (1/V2 correction)
  • Accurate adjustable output overvoltage protection
  • Protection against feedback loop failure (latched shutdown)
  • Inductor saturation protection
  • AC brownout detection
  • Digital leading-edge blanking on current sense
  • Soft-start to limit peak current and prevent flux runaway
  • 1% (at Tj = 25 °C) internal reference voltage
  • Totem pole gate driver with active pull-down during UVLO and voltage clamp
  • SSOP10 package

Applications

The L4984DTR is suitable for various applications, including:

  • PFC pre-regulators for IEC61000-3-2 and JEIDA-MITI compliant Switch-Mode Power Supplies (SMPS) in excess of 1 kW
  • Desktop PCs, servers, and web servers
  • Compliance with energy-saving standards such as Blue Angel, ENERGY STAR, and Energy 2000

Q & A

  1. What is the primary function of the L4984DTR?

    The L4984DTR is a current-mode Power Factor Correction (PFC) controller designed for boost PFC converters operating in continuous conduction mode (CCM).

  2. What package type does the L4984DTR come in?

    The L4984DTR comes in a 10-pin SSOP package.

  3. What is the operating voltage range of the L4984DTR?

    The operating voltage range is from 10.3 V to 22.5 V.

  4. What protection features does the L4984DTR include?

    The L4984DTR includes overvoltage protection, protection against feedback loop failure, inductor saturation protection, and AC brownout detection.

  5. How does the L4984DTR improve line transient response?

    The device uses a proprietary “bi-directional” input voltage feedforward (1/V2 correction) to significantly improve line transient response during mains drops and surges.

  6. What is the purpose of the soft-start feature in the L4984DTR?

    The soft-start feature limits peak current and extends off-time to prevent flux runaway in the initial cycles.

  7. What is the capability of the gate driver output stage?

    The totem pole output stage is capable of 600 mA source current and 800 mA sink current.

  8. Is the L4984DTR compliant with energy-saving standards?

    Yes, the L4984DTR is compliant with standards such as Blue Angel, ENERGY STAR, and Energy 2000.

  9. What is the junction temperature operating range of the L4984DTR?

    The junction temperature operating range is from -40 °C to 150 °C.

  10. What is the storage temperature range for the L4984DTR?

    The storage temperature range is from -55 °C to 150 °C.

Product Attributes

Mode:Continuous Conduction (CCM)
Frequency - Switching:- 
Current - Startup:65 µA
Voltage - Supply:10.3V ~ 22.5V
Operating Temperature:-40°C ~ 150°C
Mounting Type:Surface Mount
Package / Case:10-SOP (0.154", 3.90mm Width)
Supplier Device Package:10-SSOP
0 Remaining View Similar

In Stock

$2.73
37

Please send RFQ , we will respond immediately.

Same Series
L4984D
L4984D
IC PFC CTRLR CCM 10SSOP

Related Product By Categories

UC3854N
UC3854N
Texas Instruments
IC PFC CTR AV CURR 200KHZ 16DIP
UCC2818AD
UCC2818AD
Texas Instruments
IC PFC CTR AVERAGE 220KHZ 16SOIC
NCP1654BD133R2G
NCP1654BD133R2G
onsemi
IC PFC CTRLR CCM 146KHZ 8SOIC
L6563
L6563
STMicroelectronics
IC PFC CTRLR TRANSITION 14SO
UC3854BN
UC3854BN
Texas Instruments
IC PFC CTR AV CURR 200KHZ 16DIP
NCP1632DR2G
NCP1632DR2G
onsemi
IC PFC CTRLR CRM 16SOIC
FAN9672Q
FAN9672Q
onsemi
IC PFC CTRLR CCM 75KHZ 32LQFP
UCC2818DWTR
UCC2818DWTR
Texas Instruments
IC PFC CTR AVERAGE 220KHZ 16SOIC
L4981B
L4981B
STMicroelectronics
IC PFC CTR AV CURR 100KHZ 20DIP
MC33262CDR2
MC33262CDR2
onsemi
IC PFC CTRLR CRM 8SOIC
MC33368D
MC33368D
onsemi
IC PFC CTRLR CRM 16SOIC
UC3854ADWTRG4
UC3854ADWTRG4
Texas Instruments
IC PFC CTR AVERAGE 200KHZ 16SOIC

Related Product By Brand

ACST6-7SR
ACST6-7SR
STMicroelectronics
TRIAC SENS GATE 700V 6A I2PAK
STP18N60M2
STP18N60M2
STMicroelectronics
MOSFET N-CH 600V 13A TO220
STA333BWJ13TR
STA333BWJ13TR
STMicroelectronics
IC FULLY INTEG PROC POWERSSO-36
STM32G474CBT6
STM32G474CBT6
STMicroelectronics
IC MCU 32BIT 128KB FLASH 48LQFP
TL084IDT
TL084IDT
STMicroelectronics
IC OPAMP JFET 4 CIRCUIT 14SO
M95512-WMN6P
M95512-WMN6P
STMicroelectronics
IC EEPROM 512KBIT SPI 16MHZ 8SO
M24256-BWMN6T
M24256-BWMN6T
STMicroelectronics
IC EEPROM 256KBIT I2C 1MHZ 8SO
STP24DP05BTR
STP24DP05BTR
STMicroelectronics
IC LED DRIVER LINEAR 80MA 48TQFP
VN750PSTR-E
VN750PSTR-E
STMicroelectronics
IC PWR DRIVER N-CHANNEL 1:1 8SO
LD39130SJ18R
LD39130SJ18R
STMicroelectronics
IC REG LIN 1.8V 300MA 4FLIPCHIP
L78L12ACZ-TR
L78L12ACZ-TR
STMicroelectronics
IC REG LINEAR 12V 100MA TO92-3
L7809ACD2T-TR
L7809ACD2T-TR
STMicroelectronics
IC REG LINEAR 9V 1.5A D2PAK