IC manufacturers (97)
- All manufacturers
Analog Devices
Infineon Technologies
Microchip
Onsemi
Renesas
ROHM
STMicroelectronics
Texas Instruments
- 3peak incorporated (15)
- Ablic (23)
- Advanced Power (4)
- Allegro Microsystems (81)
- Alpha & Omega Semiconductor (37)
- AnalogySemi (3)
- AnDAPT Inc (172)
- Anpec (13)
- AXElite (2)
- Backward (6)
- Broadcom (47)
- Cambridge GaN Devices (18)
- Chipanalog Micro (10)
- Cologne Chips (1)
- Convenient Power (1)
- Dialog Semiconductor (12)
- Diodes Incorporated (232)
- Divimath (8)
- Elmos AG (1)
- EPC (99)
- e-Peas Semiconductors (1)
- Eta Solutions Co. Ltd. (9)
- GaN Systems (7)
- GaNPower (3)
- Giantec (1)
- Gstek Wuxi (1)
- Helix Semiconductor (7)
- Ikanos (3)
- IKON (1)
- Indie Semiconductor (5)
- Innovision Semiconductor Inc (2)
- Intel (80)
- Inventchip Technology (3)
- ISSI (51)
- JoulWatt (20)
- KDPOF (2)
- Kinetic Technology (10)
- Lattice semiconductor Corporation (20)
- Littelfuse (1)
- M3 Technology (M3Tek) (7)
- Macnica (16)
- MaxLinear (178)
- MikroE (7)
- MindCet (2)
- Monolithic Power Systems (908)
- Navitas Semiconductor Inc (6)
- NewEdge Technologies, Inc. (1)
- Nexperia (31)
- Nisshinbo Micro Device Inc. (10)
- Nordic Semiconductor (1)
- Novosense Micro (1)
- NXP (314)
- O2 Micro International Ltd (10)
- On Bright (7)
- Panasonic (2)
- PN Junction Semiconductor (2)
- Power Integrations (112)
- Pulsiv (19)
- Qorvo (86)
- Realsil SuRealsil(tek) Microelectronics (1)
- Richtek (296)
- Sanken Electric Co., Ltd. (16)
- Sckipio (6)
- Semtech (90)
- SG-Micro (32)
- Silanna Semiconductor (8)
- Silergy Corporation (30)
- Silicon Laboratory Inc. (104)
- Silicontent Technology (57)
- Silvertel (56)
- Skycore Semiconductors (1)
- Skyworks (32)
- Southchip (8)
- Summit Wireless (1)
- Tagore Tech (4)
- Taiwan Semiconductor (1)
- TDK Corporation (1)
- Tempo Semiconductor (1)
- Torex (37)
- Toshiba (25)
- Transphorm (21)
- TransSIP (2)
- Union (21)
- uPI Semiconductor (2)
- Valens Semiconductor (18)
- Wolfspeed (7)
- Xilinx (22)
- XL Semiconductor (3)
- XYSemi (62)
Overview
| Topology | Power Factor Correction |
| Input voltage | 90 V |
| Output 1 | 390 V |
| IC revision | 1 |
Description
The NCP1631 integrates a dual MOSFET driver for interleaved PFC applications. Interleaving consists of paralleling two small stages in lieu of a bigger one, more difficult to design. This approach has several merits like the ease of implementation, the use of smaller components or a better distribution of the heating. Also, Interleaving extends the power range of Critical Conduction Mode that is an efficient and cost−effective technique (no need for low trr diodes). In addition, the NCP1631 drivers are 180° phase shift for a significantly reduced current ripple. Housed in a SOIC16 package, the circuit incorporates all the features necessary for building robust and compact interleaved PFC stages, with a minimum of external components.
Features
- Near−Unity Power Factor
- Substantial 180° Phase Shift in All Conditions Including TransientPhases
- Frequency Clamped Critical Conduction Mode (FCCrM) i.e.,Fixed Frequency, Discontinuous Conduction Mode Operation withCritical Conduction Achievable in Most Stressful Conditions
- FCCrM Operation Optimizes the PFC Stage Efficiency Over theLoad Range
- Out−of−phase Control for Low EMI and a Reduced rms Current inthe Bulk Capacitor
- Frequency Fold−back at Low Power to Further Improve the LightLoad Efficiency
- Accurate Zero Current Detection by Auxiliary Winding for ValleyTurn On
- Fast Line / Load Transient Compensation
- High Drive Capability: −500 mA / +800 mA
- Signal to Indicate that the PFC is Ready for Operation (“pfcOK”Pin)
- VCC Range: from 10 V to 20 VSafety Features
- Output Over and Under Voltage Protection
- Brown−Out Detection with a 50−ms Delay to Help Meet Hold−up Time Specifications
- Soft−Start for Smooth Start−up Operation
- Programmable Adjustment of the Maximum Power
- Over Current Limitation
- Detection of Inrush Currents
Typical applications
- All Off Line Appliances Requiring Power Factor
- LCD / Plasma Flat Panels
- Computer Power Supplies
More information
Products
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | Pins (Value) | Application | PCB/Cable/Panel | Modularity | Type | ISAT (A) | fres (MHz) | IR (A) | L (mH) | RDC max. (mΩ) | VR (V (AC)) | VT (V (AC)) | Material | L (mm) | W (mm) | H (mm) | Mount | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 691313710003 | SPEC | – | 7 files | Active i| Production is active. Expected lifetime: >10 years. | WR-TBL Series 3137 - 5.00 mm Close Horizontal PCB Header | 3 | Pluggable | PCB | No | Horizontal | – | – | 20 | – | – | – | – | – | 17 | – | – | THT | |
 | 744824622 | SPEC | 10 files | Active i| Production is active. Expected lifetime: >10 years. | WE-CMB Common Mode Power Line Choke | 4 | – | – | – | – | – | – | 6 | 2.2 | 20 | 250 | 1500 | MnZn | 27.5 | 18.5 | 33 | THT | ||
 | 7447076 | SPEC | – | 6 files | Active i| Production is active. Expected lifetime: >10 years. | WE-FI Leaded Toroidal Line Choke | – | – | – | – | – | – | – | 6.1 | 0.15 | 45 | – | – | – | 27.5 | 13.6 | – | THT | |
 | 744731471 | SPEC PCN pendingDue to a pending PCN, a modification of the component will be implemented soon. Please find the PCN below. If you have further questions please get in contact with our sales staff. | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-TIS Radial Leaded Wire Wound Inductor | – | – | – | – | – | 0.4 | 2.3 | 0.6 | 0.47 | 1300 | – | – | – | 7.8 | 7.8 | 7.5 | THT | ||
| 744731102 | SPEC PCN pendingDue to a pending PCN, a modification of the component will be implemented soon. Please find the PCN below. If you have further questions please get in contact with our sales staff. | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-TIS Radial Leaded Wire Wound Inductor | – | – | – | – | – | 0.25 | 1.7 | 0.35 | 1 | 2300 | – | – | – | 7.8 | 7.8 | 7.5 | THT | ||
| 750314724 | SPEC | – | – | Active i| Production is active. Expected lifetime: >10 years. | Power Inductor | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 691313710003 | SPEC | – |
| 744824622 | SPEC | |
| 7447076 | SPEC | – |
| 744731471 | SPEC PCN pendingDue to a pending PCN, a modification of the component will be implemented soon. Please find the PCN below. If you have further questions please get in contact with our sales staff. | |
| 744731102 | SPEC PCN pendingDue to a pending PCN, a modification of the component will be implemented soon. Please find the PCN below. If you have further questions please get in contact with our sales staff. | |
| 750314724 | SPEC | – |
| Samples |
|---|
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | Pins (Value) | Application | PCB/Cable/Panel | Modularity | Type | ISAT (A) | fres (MHz) | IR (A) | L (mH) | RDC max. (mΩ) | VR (V (AC)) | VT (V (AC)) | Material | L (mm) | W (mm) | H (mm) | Mount | Samples |
|---|
