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NCV33067DWR2G PDF预览

NCV33067DWR2G

更新时间： 2024-09-16 11:01:39
品牌 Logo 应用领域
安森美 - ONSEMI 开关控制器开关式稳压器开关式控制器电源电路开关式稳压器或控制器
页数 文件大小 规格书
16页 536K
描述
高性能谐振模式控制器

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NCV33067DWR2G 数据手册

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MC34067, MC33067  
High Performance  
Resonant Mode Controllers  
The MC34067/MC33067 are high performance zero voltage switch  
resonant mode controllers designed for off−line and dc−to−dc  
converter applications that utilize frequency modulated constant  
off−time or constant deadtime control. These integrated circuits  
feature a variable frequency oscillator, a precise retriggerable  
one−shot timer, temperature compensated reference, high gain wide  
bandwidth error amplifier, steering flip−flop, and dual high current  
totem pole outputs ideally suited for driving power MOSFETs.  
Also included are protective features consisting of a high speed fault  
comparator and latch, programmable soft−start circuitry, input  
undervoltage lockout with selectable thresholds, and reference  
undervoltage lockout. These devices are available in dual−in−line and  
surface mount packages.  
http://onsemi.com  
MARKING  
DIAGRAMS  
16  
1
MC3x067P  
AWLYYWWG  
16  
1
PDIP−16  
P SUFFIX  
CASE 648  
Features  
• Zero Voltage Switch Resonant Mode Operation  
• Variable Frequency Oscillator with a Control Range  
Exceeding 1000:1  
16  
• Precision One−Shot Timer for Controlled Off−Time  
• Internally Trimmed Bandgap Reference  
• 4.0 MHz Error Amplifier  
16  
MC3x067DW  
AWLYYWWG  
1
• Dual High Current Totem Pole Outputs  
• Selectable Undervoltage Lockout Thresholds with Hysteresis  
• Enable Input  
SOIC−16W  
DW SUFFIX  
CASE 751G  
1
• Programmable Soft−Start Circuitry  
• Low Startup Current for Off−Line Operation  
• Pb−Free Packages are Available*  
x
A
= 3 or 4  
= Assembly Location  
WL = Wafer Lot  
YY = Year  
WW = Work Week  
15  
V
CC  
G
= Pb−Free Package  
9
1
5
V
UVLO /  
CC  
Enable  
Enable /  
UVLO Adjust  
5.0 V  
Reference  
V
ref  
OSC Charge  
V
UVLO  
ref  
Variable  
Frequency  
Oscillator  
PIN CONNECTIONS  
2
OSC RC  
Oscillator  
Control Current  
3
14  
Output A  
OSC Charge  
OSC RC  
One−Shot RC  
1
2
3
4
5
6
16  
15  
16  
Steering  
Flip−Flop  
One−Shot  
One−Shot  
V
CC  
12  
13  
Output B  
Pwr GND  
Error Amp  
Output  
Noninverting  
Input  
6
8
2.5 V  
Clamp  
Drive Output A  
Power GND  
14  
13  
OSC Control Current  
GND  
V
ref  
Drive Output B  
12  
11  
10  
9
Inverting Input  
7
Error  
Amp  
Error Amp Out  
Inverting Input  
C
Soft−Start  
11  
Soft−Start  
10  
Fault Detector/  
Latch  
Soft−Start  
Fault Input  
Fault Input  
7
8
Enable/UVLO  
Adjust  
Noninverting Input  
4
Ground  
(Top View)  
Figure 1. Simplified Block Diagram  
ORDERING INFORMATION  
See detailed ordering and shipping information in the package  
dimensions section on page 2 of this data sheet.  
*For additional information on our Pb−Free strategy and soldering details, please  
download the ON Semiconductor Soldering and Mounting Techniques  
Reference Manual, SOLDERRM/D.  
©
Semiconductor Components Industries, LLC, 2005  
1
Publication Order Number:  
October, 2005 − Rev. 11  
MC34067/D  
1234567...16

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