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參數(shù)資料
| 型號(hào)： | NCP1212PG |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Current Mode PWM Controller for Both Forward and Flyback Converters |
| 中文描述： | 1 A SWITCHING CONTROLLER, 200 kHz SWITCHING FREQ-MAX, PDIP8 |
| 封裝： | LEAD FREE, PLASTIC, DIP-8 |
| 文件頁數(shù)： | 1/22頁 |
| 文件大?。?/td> | 200K |
| 代理商： | NCP1212PG |
Semiconductor Components Industries, LLC, 2004
October, 2004 Rev. 2
1
Publication Order Number:
NCP1212/D
NCP1212
Current Mode PWM
Controller for Both Forward
and Flyback Converters
NCP1212 is a high performance current mode PWM controller
specifically designed for offline and DCtoDC converter
applications. The device requires very few external components and
offers designer additional protection for better system reliability. The
device features a trimmed oscillator for precise Duty Cycle control,
accurate bandgap voltage reference, high gain error amplifier, current
sensing comparator and a high current totem pole output gate driver
that ideally drives the external power MOSFET. Additionally, the
device has builtin programmable Brownout Detect and SoftStart
features to enhance system reliability. Also, the 48%/82% selectable
maximum turn on Duty Cycle control and external programmable
switching frequency capabilities make this device an ideal controller
for both forward and flyback configurations. This device is available
in both PDIP8 and space saving SOIC8 packages.
Features
PbFree Package is Available
Trimmed Oscillator Charge and Discharge Current for Precise Duty
Cycle Control
Internal High Accuracy Bandgap Voltage Reference
Current Mode Operation up to 200 kHz
Inherent Feed Forward Compensation
Latching PWM for CyclebyCycle Current Limiting
High Current Totem Pole Output Gate Driver
Low Startup and Operating Current
Internal Undervoltage Lockout with Hysteresis
Internal Leading Edge Blanking for Current Feedback
Direct Interface with Optocoupler for Secondary Sensing
Builtin SoftStart Function, Programmable by External Capacitor
User Programmable 48%/82% Maximum Duty Cycle Selection
Output Overvoltage Protection Against Open Loop
AC Line Brownout Detect Protection
Output Overload Protection Irrespective of Auxiliary Voltage Level
Typical Applications
ATX PC Power Supply
Universal Input Wall Mount Adaptors
CRT Monitor
All Flyback and Forward SMPS Systems
PDIP8
P SUFFIX
CASE 626
1
8
1
8
SOIC8
D SUFFIX
CASE 751
1
8
5
3
4
(Top View)
FB
CS
SS/DMAX
PIN CONNECTIONS
7
6
2
VCC
BOK
CT
GND
DRV
MARKING
DIAGRAMS
A
WL, L
YY, Y
WW, W = Work Week
= Assembly Location
= Wafer Lot
= Year
N1212
ALYW
NCP1212
AWL
YYWW
1
8
Device
Package
Shipping
ORDERING INFORMATION
NCP1212DR2
NCP1212P
SOIC8
PDIP8
2500 Tape & Reel
50 Units/Rail
http://onsemi.com
NCP1212PG
PDIP8
(PbFree)
50 Units/Rail
For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specifications
Brochure, BRD8011/D.
1
8
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| NCP1212DR2 | Current Mode PWM Controller for Both Forward and Flyback Converters |
| NCP1212P | Current Mode PWM Controller for Both Forward and Flyback Converters |
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| NCP1215 | 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:Low Cost Variable OFF Time Switched Mode Power Supply Controller |
| NCP1215A | 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:Power Factor Controllers |
| NCP1215AADAPGEVB | 功能描述:插座和適配器 NCP1215 5 W ADAPTER EVB RoHS:否 制造商:Silicon Labs 產(chǎn)品:Adapter 用于:EM35x |
| NCP1215ADR2 | 功能描述:交流/直流開關(guān)轉(zhuǎn)換器 Low Cost Variable RoHS:否 制造商:STMicroelectronics 輸出電壓:800 V 輸入/電源電壓（最大值）:23.5 V 輸入/電源電壓（最小值）:11.5 V 開關(guān)頻率:115 kHz 電源電流:1.6 mA 工作溫度范圍:- 40 C to + 150 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SSO-10 封裝:Reel |
| NCP1215ADR2G | 功能描述:交流/直流開關(guān)轉(zhuǎn)換器 Low Cost Variable Off SMPS RoHS:否 制造商:STMicroelectronics 輸出電壓:800 V 輸入/電源電壓（最大值）:23.5 V 輸入/電源電壓（最小值）:11.5 V 開關(guān)頻率:115 kHz 電源電流:1.6 mA 工作溫度范圍:- 40 C to + 150 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SSO-10 封裝:Reel |
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