NCP1611BDR2G
  • Share:

onsemi NCP1611BDR2G

Manufacturer No:
NCP1611BDR2G
Manufacturer:
onsemi
Package:
Tape & Reel (TR)
Description:
IC PFC CTRLR CCFF/CRM 8SOIC
Delivery:
Payment:
iso14001
iso45001
iso9001
iso13485

Product Introduction

Overview

The NCP1611BDR2G, produced by onsemi, is an enhanced, high-efficiency power factor controller designed to drive PFC (Power Factor Correction) boost stages. It employs an innovative Current Controlled Frequency Fold-back (CCFF) method, which maximizes efficiency at both nominal and light load conditions. This controller operates in Critical Conduction Mode (CrM) and incorporates features such as on-time modulation, skip mode near the line zero crossing, and fast line/load transient compensation. The NCP1611BDR2G is housed in a SOIC-8 package and is suitable for robust and compact PFC stages with minimal external components.

Key Specifications

Parameter Min Typ Max Unit
VCC (Power Supply Input) -0.3 - 35 V
VCC Start-Up Threshold (A Version) 9.75 10.50 11.25 V
VCC Start-Up Threshold (B Version) 15.80 17.00 18.20 V
VCC Minimum Operating Voltage 8.50 9.00 9.50 V
DRV Pin Drive Capability -500 - 800 mA
Operating Junction Temperature Range -40 - 125 °C
Thermal Shutdown Threshold - - 150 °C

Key Features

  • Near-Unity Power Factor: Ensures high power factor ratios across a wide range of line and load conditions.
  • Critical Conduction Mode (CrM): Operates in CrM when the inductor current exceeds a programmable value.
  • Current Controlled Frequency Fold-back (CCFF): Reduces frequency to about 20 kHz at low current levels, minimizing standby losses.
  • On-time Modulation: Maintains proper current shaping in CCFF mode.
  • Skip Mode Near the Line Zero Crossing: Enhances efficiency during light load conditions.
  • Fast Line/Load Transient Compensation (Dynamic Response Enhancer): Improves response to line and load changes.
  • Valley Turn On: Reduces switching losses.
  • High Drive Capability: Up to 500 mA sink and 800 mA source current.
  • Low Start-Up Consumption: Minimizes power consumption during start-up.
  • Safety Features: Includes over-voltage protection, brown-out detection, soft-start, over-current limitation, and thermal shutdown.

Applications

  • PC, TV, and Adapter Power Supplies
  • LED Drivers and Light Ballasts (including dimmable versions)
  • All Off-Line Applications Requiring Power Factor Correction

Q & A

  1. What is the primary function of the NCP1611BDR2G?

    The NCP1611BDR2G is designed to drive PFC boost stages, ensuring high power factor correction and efficiency.

  2. What is the Current Controlled Frequency Fold-back (CCFF) method?

    The CCFF method reduces the switching frequency to about 20 kHz at low current levels, minimizing standby losses and maximizing efficiency.

  3. What are the key safety features of the NCP1611BDR2G?

    The key safety features include over-voltage protection, brown-out detection, soft-start, over-current limitation, and thermal shutdown.

  4. What is the operating junction temperature range of the NCP1611BDR2G?

    The operating junction temperature range is from -40°C to 125°C.

  5. What is the typical application of the NCP1611BDR2G in power supplies?

    The NCP1611BDR2G is typically used in PC, TV, and adapter power supplies, as well as in LED drivers and light ballasts.

  6. How does the NCP1611BDR2G handle line and load transients?

    The NCP1611BDR2G features fast line/load transient compensation, known as the Dynamic Response Enhancer, to improve response to line and load changes.

  7. What is the drive capability of the DRV pin?

    The DRV pin has a drive capability of up to 500 mA sink and 800 mA source current.

  8. What is the thermal shutdown threshold of the NCP1611BDR2G?

    The thermal shutdown threshold is 150°C.

  9. How does the NCP1611BDR2G ensure near-unity power factor?

    The NCP1611BDR2G ensures near-unity power factor through its advanced control algorithms and internal circuitry, even when the switching frequency is reduced.

  10. What package type is the NCP1611BDR2G available in?

    The NCP1611BDR2G is housed in a SOIC-8 package.

Product Attributes

Mode:Current Controlled Frequency Foldback (CCFF), Critical Conduction (CRM)
Frequency - Switching:- 
Current - Startup:20 µA
Voltage - Supply:9.5V ~ 35V
Operating Temperature:-40°C ~ 125°C
Mounting Type:Surface Mount
Package / Case:8-SOIC (0.154", 3.90mm Width)
Supplier Device Package:8-SOIC
0 Remaining View Similar

In Stock

$0.93
384

Please send RFQ , we will respond immediately.

Same Series
ASHEK2-32.768KHZ-LT
ASHEK2-32.768KHZ-LT
XTAL OSC XO 32.7680KHZ CMOS SMD
NCP1611ADR2G
NCP1611ADR2G
IC PFC CTRLR CCFF/CRM 8SOIC

Similar Products

Part Number NCP1611BDR2G NCP1618BDR2G NCP1612BDR2G NCP1601BDR2G NCP1611ADR2G
Manufacturer onsemi onsemi onsemi onsemi onsemi
Product Status Active Active Active Obsolete Active
Mode Current Controlled Frequency Foldback (CCFF), Critical Conduction (CRM) Continuous Conduction (CCM) Current Controlled Frequency Foldback (CCFF), Critical Conduction (CRM) Critical Conduction (CRM), Discontinuous (Transition) Current Controlled Frequency Foldback (CCFF), Critical Conduction (CRM)
Frequency - Switching - 65kHz - 58kHz -
Current - Startup 20 µA 1 mA 20 µA 17 µA 20 µA
Voltage - Supply 9.5V ~ 35V 9.5V ~ 35V 9.5V ~ 35V 9.6V ~ 18V 9.5V ~ 35V
Operating Temperature -40°C ~ 125°C -40°C ~ 125°C (TJ) -40°C ~ 125°C -40°C ~ 125°C -40°C ~ 125°C
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount
Package / Case 8-SOIC (0.154", 3.90mm Width) 10-SOP (0.154", 3.90mm Width), 9 Leads 10-SOP (0.154", 3.90mm Width) 8-SOIC (0.154", 3.90mm Width) 8-SOIC (0.154", 3.90mm Width)
Supplier Device Package 8-SOIC 9-SOIC 10-SOIC 8-SOIC 8-SOIC

Related Product By Categories

UC3854N
UC3854N
Texas Instruments
IC PFC CTR AV CURR 200KHZ 16DIP
L4981AD
L4981AD
STMicroelectronics
IC PFC CTR AVER CURR 100KHZ 20SO
NCP1612A3DR2G
NCP1612A3DR2G
onsemi
IC PFC CTRLR CCFF/CRM 10SOIC
ADP1048ARQZ-R7
ADP1048ARQZ-R7
Analog Devices Inc.
IC PFC CTR AVERAGE 400KHZ 24QSOP
UCC28063AD
UCC28063AD
Texas Instruments
IC PFC CTRLR TRANSITION 16SOIC
FAN6921BMRMY
FAN6921BMRMY
onsemi
IC PFC CTRLR CRM 16SOP
NCP1605BDR2G
NCP1605BDR2G
onsemi
IC PFC CTL CRM/DCM 250KHZ 16SOIC
TEA1792TS/1,115
TEA1792TS/1,115
NXP USA Inc.
IC PFC CTRLR DCM 6TSOP
TEA1532CT/N1,118
TEA1532CT/N1,118
NXP USA Inc.
IC PFC CTRLR CCM 150KHZ 8SO
MC33262P
MC33262P
onsemi
IC PFC CTRLR CRM 8DIP
L4981B
L4981B
STMicroelectronics
IC PFC CTR AV CURR 100KHZ 20DIP
MC33262CDR2
MC33262CDR2
onsemi
IC PFC CTRLR CRM 8SOIC

Related Product By Brand

MMSZ5221BT1G
MMSZ5221BT1G
onsemi
DIODE ZENER 2.4V 500MW SOD123
TIP145G
TIP145G
onsemi
TRANS PNP DARL 60V 10A TO247-3
BC547BTAR
BC547BTAR
onsemi
TRANS NPN 45V 0.1A TO92-3
BD677AG
BD677AG
onsemi
TRANS NPN DARL 60V 4A TO126
NTK3043NT1G
NTK3043NT1G
onsemi
MOSFET N-CH 20V 210MA SOT723
NVMFS5C410NLWFT3G
NVMFS5C410NLWFT3G
onsemi
MOSFET N-CH 40V 48A/315A 5DFN
MC74HC245ADW
MC74HC245ADW
onsemi
IC BUS/TXRX NONINV OCT 20-SOIC
LC709203FXE-01MH
LC709203FXE-01MH
onsemi
IC BATT MON LI-ION 1CELL 9WLCSP
LB11660FV-TLM-H
LB11660FV-TLM-H
onsemi
IC MOTOR DRIVER 4V-15V 16SSOP
MC34161DMR2G
MC34161DMR2G
onsemi
IC SUPERVISOR 2 CHANNEL MICRO8
MAX809SQ232T1G
MAX809SQ232T1G
onsemi
IC SUPERVISOR 1 CHANNEL SC70-3
MC78PC30NTRG
MC78PC30NTRG
onsemi
IC REG LINEAR 3V 150MA 5TSOP