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NCP12400AAAAB2 PDF预览

NCP12400AAAAB2

更新时间: 2024-12-01 02:11:15
品牌 Logo 应用领域
安森美 - ONSEMI /
页数 文件大小 规格书
46页 4913K
描述
Fixed Frequency Current Mode Controller for Flyback Converters

NCP12400AAAAB2 数据手册

 浏览型号NCP12400AAAAB2的Datasheet PDF文件第2页浏览型号NCP12400AAAAB2的Datasheet PDF文件第3页浏览型号NCP12400AAAAB2的Datasheet PDF文件第4页浏览型号NCP12400AAAAB2的Datasheet PDF文件第5页浏览型号NCP12400AAAAB2的Datasheet PDF文件第6页浏览型号NCP12400AAAAB2的Datasheet PDF文件第7页 
Fixed Frequency Current  
Mode Controller for Flyback  
Converters  
NCP12400  
The NCP12400 is a new fixedfrequency currentmode controller  
featuring the Dynamic SelfSupply. This function greatly simplifies  
www.onsemi.com  
the design of the auxiliary supply and the V capacitor by activating  
CC  
the internal startup current source to supply the controller during  
startup, transients, latch, standby etc. This device contains a special  
HV detector which detects the application unplug from the ac input  
line and triggers the X2 discharge current. This HV structure allows  
the brownout detection as well.  
SOIC7  
It features a timerbased 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.  
CASE 751U  
MARKING DIAGRAM  
8
XXXXX  
ALYWG  
G
1
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.  
400VWXYZf  
= Specific Device Code  
(see page 2)  
= Assembly Location  
= Wafer Lot  
= Year  
= Work Week  
A
L
Y
W
G
Features  
FixedFrequency CurrentMode Operation 65 kHz or 100 kHz  
Frequency Options  
= PbFree Package  
Frequency Foldback then Skip Mode for Maximized Performance  
(Note: Microdot may be in either location)  
in Light Load and Standby Conditions  
TimerBased Overload Protection with Latched (Option A) or  
Autorecovery (Option B) Operation  
PIN CONNECTIONS  
1
4
8
5
HighVoltage Current Source with BrownOut Detection and  
FAULT  
FB  
HV  
Dynamic SelfSupply, Simplifying the Design of the V Circuitry  
CC  
Frequency Modulation for Softened EMI Signature  
CS  
V
CC  
Adjustable Overpower Protection Dependant on the Mains Voltage  
Fault Input for Overvoltage and Over Temperature Protection  
GND  
DRV  
(Top View)  
V Operation up to 28 V, with Overvoltage Detection  
CC  
300/500 mA Source/Sink Drive Peak Current Capability  
4/10 ms SoftStart  
ORDERING INFORMATION  
See detailed ordering and shipping information on page 43 of  
this data sheet.  
Internal Thermal Shutdown  
NoLoad Standby Power < 30 mW  
X2 Capacitor in EMI Filter Discharging Feature  
These are PbFree Devices  
Typical Applications  
Offline Adapters for Notebooks, LCD, and Printers  
Offline Battery Chargers  
Consumer Electronic Power Supplies  
Auxiliary/Housekeeping Power Supplies  
Offline Adapters for Notebooks  
© Semiconductor Components Industries, LLC, 2017  
1
Publication Order Number:  
October, 2019 Rev. 5  
NCP12400/D  

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