- 您现在的位置：买卖IC网 > PDF目录19616 > NCP1246AD100R2G (ON Semiconductor)IC CTLR CURR MODE 100KHZ 8SOIC PDF资料下载
参数资料
| 型号： | NCP1246AD100R2G |
| 厂商： | ON Semiconductor |
| 文件页数： | 1/39页 |
| 文件大小： | 0K |
| 描述： | IC CTLR CURR MODE 100KHZ 8SOIC |
| 标准包装： | 2,500 |
| 系列： | * |
当前第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页
NCP1246
Fixed Frequency Current
Mode Controller for Flyback
Converters
The NCP1246 is a new fixed ? frequency current ? mode controller
featuring the Dynamic Self ? Supply. This function greatly simplifies
http://onsemi.com
the design of the auxiliary supply and the V CC 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
SOIC ? 7
CASE 751U
8
1
MARKING
DIAGRAM
46Xff
ALYWX
G
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.
46Xff = Specific Device Code
X = A or B
ff = 65 or 100
A = Assembly Location
L = Wafer Lot
Y = Year
W = Work Week
G = Pb ? Free Package
PIN CONNECTIONS
Features
? Fixed ? Frequency Current ? Mode Operation (65 kHz and 100 kHz
frequency options)
?
Frequency Foldback then Skip Mode for Maximized Performance in
Auto ? Recovery (Option B) Operation
Dynamic Self ? Supply, Simplifying the Design of the V CC Circuitry
?
500/800 mA Source/Sink Drive Peak Current
Latch 1 8 HV
FB 2
CS 3 6 V CC
GND 4 5 DRV
Light Load and Standby Conditions (Top View)
? Timer ? Based Overload Protection with Latched (Option A) or
ORDERING INFORMATION
? High ? voltage Current Source with Brown ? Out Detection and See detailed ordering and shipping information in the package
dimensions section on page 38 of this data sheet.
? Frequency Modulation for Softened EMI Signature
? Adjustable Overpower Protection Dependant on the Bulk Voltage
? Latch ? off Input Combined with the Overpower Protection Sensing
Input
? V CC Operation up to 28 V, With Overvoltage Detection
Typical Applications
Capability ? AC ? DC Adapters for Notebooks, LCD, and Printers
? 10 ms Soft ? Start ? Offline Battery Chargers
? Internal Thermal Shutdown ? Consumer Electronic Power Supplies
? No ? Load Standby Power < 30 mW ? Auxiliary/Housekeeping Power Supplies
? X2 Capacitor in EMI Filter Discharging Feature ? Offline Adapters for Notebooks
? These Devices are Pb ? Free and Halogen Free/BFR Free
? Semiconductor Components Industries, LLC, 2014
March, 2014 ? Rev. 2
1
Publication Order Number:
NCP1246/D
相关PDF资料 |
PDF描述 |
|---|---|
| 189-015-513R571 | CONN DB15 FEM-FEM .625" SPACING |
| ABB56DHFD-S578 | EDGECARD 112POS .050 SMD W/POSTS |
| RCM10DCAN-S189 | CONN EDGECARD 20POS R/A .156 SLD |
| RSO-4815S | CONV DC/DC 1W 36-72VIN 15VOUT |
| RSC49DREF-S13 | CONN EDGECARD 98POS .100 EXTEND |
相关代理商/技术参数 |
参数描述 |
|---|---|
| NCP1246B100DR2G | 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:Fixed Frequency Current Mode Controller for Flyback Converters |
| NCP1246B65DR2G | 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:Fixed Frequency Current Mode Controller for Flyback Converters |
| NCP1246BD065R2G | 功能描述:电流型 PWM 控制器 FIXED FREQ (65KHZ) CURREN RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
| NCP1246BD100R2G | 功能描述:电流型 PWM 控制器 FIXED FREQ (65KHZ) CURREN RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
| NCP1246-D | 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:Fixed Frequency Current Mode Controller for Flyback Converters |
发布紧急采购，3分钟左右您将得到回复。