IC manufacturers (99)
- All manufacturers
Analog Devices
Infineon Technologies
Microchip
Onsemi
Renesas
ROHM
STMicroelectronics
Texas Instruments
- 3peak incorporated (27)
- Ablic (23)
- Advanced Power (4)
- Allegro Microsystems (84)
- Alpha & Omega Semiconductor (37)
- AnalogySemi (3)
- AnDAPT Inc (172)
- Anpec (13)
- AXElite (2)
- Backward (6)
- Bright Power Semiconductor (1)
- Broadcom (47)
- Cambridge GaN Devices (18)
- Chipanalog Micro (10)
- Cologne Chips (1)
- Convenient Power (1)
- Dialog Semiconductor (12)
- Diodes Incorporated (238)
- 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 (19)
- Littelfuse (1)
- M3 Technology (M3Tek) (7)
- Macnica (16)
- MaxLinear (175)
- MikroE (8)
- MindCet (2)
- Monolithic Power Systems (929)
- Navitas Semiconductor Inc (6)
- NewEdge Technologies, Inc. (1)
- Nexperia (32)
- 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 (110)
- Pulsiv (19)
- Qorvo (87)
- Realsil SuRealsil(tek) Microelectronics (1)
- Richtek (296)
- Sanken Electric Co., Ltd. (16)
- Sckipio (6)
- Semtech (90)
- SG-Micro (33)
- Silanna Semiconductor (8)
- Silergy Corporation (30)
- Silicon Laboratory Inc. (104)
- Silicontent Technology (57)
- Silvertel (56)
- Skycore Semiconductors (1)
- Skyworks (31)
- Southchip (8)
- Summit Wireless (1)
- Tagore Tech (7)
- 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)
- Wise Integration (1)
- Wolfspeed (8)
- Xilinx (22)
- XL Semiconductor (3)
- XYSemi (62)
Onsemi NCP4354 | Demoboard EVBUM2341/D
Implementing High Power Notebook Adapter Evaluation Board User's Manual
Overview
| Topology | Flyback Converter |
| Input voltage | 85-260 V |
| Output 1 | 19.5 V / 7.7 A |
Description
This evaluation board user’s manual provides elementaryinformation about a high efficiency, low no-load power consumptionreference design that is targeting power laptop adapter or similar typeof equipment that accepts 19.5 VDC on the input.The power supply implements PFC front stage to assure unity powerfactor and low THD, current mode LLC power stage to enhancetransient response and secondary side synchronous rectification tomaximize efficiency. This design focuses mainly on the NCP1399current mode LLC controller description – please refer to NCP1602and NCP4305 material to gain more information about these devices.The NCP1399 is a current mode LLC controller which means thatthe operating frequency of an LLC converter is not controlled viavoltage (or current) controlled oscillator but is directly derived fromthe resonant capacitor voltage signal and actual feedback level. Thiscontrol technique brings several benefits compare to traditionalvoltage mode controllers like improved line and load transientresponse and inherent out of zero voltage switching protection. TheLLC controller also features built-in high voltage startup and PFCoperation control pins that ease implementation of a power supplywith PFC front stage and no standby power supply on board.The enhanced light lad operation of the LLC controller allowsSMPS design to pass the latest no-load and light load consumptionlimits and still keeping output regulated with excellent transientresponse from no-load to full-load steps.
Features
- Wide Input Voltage Range
- Small Form Factor/High Power Density
- High Efficiency
- Low No-load Power Consumption
- Fast Startup
- X2 Capacitor Discharge Function
- Near Unity Power Factor
- Low Mains Operation Protection
- Overload Protection
- Secondary Short Circuit Protected
- Thermal Protection
- Regulated Output Under any Conditions
- Excellent Load and Line TransientResponse
- Capability to Implement Off-mode forExtremely Low No-load PowerConsumption
More information
Products
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | C | VR (V (AC)) | Safety Class | dV/dt (V/µs) | DF @ 1 kHz (%) | RISO | Operating Temperature | Pitch (mm) | L (mm) | W (mm) | H (mm) | Packaging | Endurance (h) | IRIPPLE (mA) | ILeak (µA) | DF (%) | Ø D (mm) | VRMS (V) | VDC (V) | VBR (V) | IPeak (A) | Wmax (J) | PDiss (W) | Application | VDE Approval | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 890334024003 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-FTXX Film Capacitors | 330 nF | 310 | X2 | 260 | 0.1 | 30 GΩ | -40 °C up to +105 °C | 12.5 | 15 | 8.5 | 14 | Bulk | – | – | – | – | – | – | – | – | – | – | – | Across the mains | – | ||
 | 860020475016 | SPEC | 7 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-ATG5 Aluminum Electrolytic Capacitors | 680 µF | 25 | – | – | – | – | -40 °C up to +105 °C | 5 | 16 | – | – | Ammopack | 2000 | 520 | 170 | 14 | 10 | – | – | – | – | – | – | – | – | ||
 | 820512711 | 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. | 6 files | Active i| Production is active. Expected lifetime: >10 years. | WE-VD Disk Varistor | – | – | – | – | – | – | -40 °C up to +85 °C | – | 12.5 | 4.4 | 16 | – | – | – | – | – | 12.5 | 275 | 350 | 430 | 2500 | 66 | 0.4 | 230 VAC | Yes |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 890334024003 | SPEC | |
| 860020475016 | SPEC | |
| 820512711 | 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. |
| Samples |
|---|
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | C | VR (V (AC)) | Safety Class | dV/dt (V/µs) | DF @ 1 kHz (%) | RISO | Operating Temperature | Pitch (mm) | L (mm) | W (mm) | H (mm) | Packaging | Endurance (h) | IRIPPLE (mA) | ILeak (µA) | DF (%) | Ø D (mm) | VRMS (V) | VDC (V) | VBR (V) | IPeak (A) | Wmax (J) | PDiss (W) | Application | VDE Approval | Samples |
|---|