首頁>NCP1246_V01>規(guī)格書詳情
NCP1246_V01中文資料安森美半導(dǎo)體數(shù)據(jù)手冊PDF規(guī)格書
NCP1246_V01規(guī)格書詳情
The NCP1246 is a new fixed?frequency current?mode controller
featuring the Dynamic Self?Supply. This function greatly simplifies
the design of the auxiliary supply and the VCC capacitor by activating
the internal startup current source to supply the controller during
start?up, transients, latch, stand?by etc. This device contains a special
HV detector which detect the application unplug from the AC input
line and triggers the X2 discharge current. This HV structure allows
the brown?out detection as well.
It features a timer?based fault detection that ensures the detection of
overload and an adjustable compensation to help keep the maximum
power independent of the input voltage.
Due to frequency foldback, the controller exhibits excellent
efficiency in light load condition while still achieving very low
standby power consumption. Internal frequency jittering, ramp
compensation, and a versatile latch input make this controller an
excellent candidate for the robust power supply designs.
A dedicated Off mode allows to reach the extremely low no load
input power consumption via “sleeping” whole device and thus
minimize the power consumption of the control circuitry.
Features
? Fixed?Frequency Current?Mode Operation (65 kHz and 100 kHz
frequency options)
? Frequency Foldback then Skip Mode for Maximized Performance in
Light Load and Standby Conditions
? Timer?Based Overload Protection with Latched (Option A) or
Auto?Recovery (Option B) Operation
? High?voltage Current Source with Brown?Out Detection and
Dynamic Self?Supply, Simplifying the Design of the VCC Circuitry
? Frequency Modulation for Softened EMI Signature
? Adjustable Overpower Protection Dependant on the Bulk Voltage
? Latch?off Input Combined with the Overpower Protection Sensing Input
? VCC Operation up to 28 V, With Overvoltage Detection
? 500/800 mA Source/Sink Drive Peak Current Capability
? 10 ms Soft?Start, 4 ms Soft?Start (AL/BL Versions)
? Internal Thermal Shutdown
? No?Load Standby Power < 30 mW
? X2 Capacitor in EMI Filter Discharging Feature
? These Devices are Pb?Free, Halogen Free/BFR Free and are RoHS Compliant
Typical Applications
? AC?DC Adapters for Notebooks, LCD, and Printers
? Offline Battery Chargers
? Consumer Electronic Power Supplies
? Auxiliary/Housekeeping Power Supplies
? Offline Adapters for Notebooks
| 供應(yīng)商 | 型號 | 品牌 | 批號 | 封裝 | 庫存 | 備注 | 價格 |
|---|---|---|---|---|---|---|---|
三年內(nèi) |
1983 |
只做原裝正品 |
詢價 | ||||
ON(安森美) |
23+ |
標準封裝 |
8000 |
正規(guī)渠道,只有原裝! |
詢價 | ||
ON |
20+ |
SOP-7 |
682 |
一級代理,專注軍工、汽車、醫(yī)療、工業(yè)、新能源、電力 |
詢價 | ||
ON/安森美 |
24+ |
SOIC8-P7 |
860000 |
明嘉萊只做原裝正品現(xiàn)貨 |
詢價 | ||
ON/安森美 |
NA |
275000 |
一級代理原裝正品,價格優(yōu)勢,長期供應(yīng)! |
詢價 | |||
ON Semiconductor |
21+ |
7SOIC |
13880 |
公司只售原裝,支持實單 |
詢價 | ||
ON(安森美) |
6000 |
詢價 | |||||
ON(安森美) |
23+ |
19307 |
公司只做原裝正品,假一賠十 |
詢價 | |||
ON/安森美 |
2022+ |
SOIC-7 |
8000 |
只做原裝支持實單,有單必成。 |
詢價 | ||
ONSemiconductor |
24+ |
7-SOIC |
66800 |
原廠授權(quán)一級代理,專注汽車、醫(yī)療、工業(yè)、新能源！ |
詢價 |
