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MC33067P 数据表(PDF) 1 Page - ON Semiconductor

部件名 MC33067P
功能描述  High Performance Resonant Mode Controllers
Download  16 Pages
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制造商  ONSEMI [ON Semiconductor]
网页  http://www.onsemi.com
标志 ONSEMI - ON Semiconductor

MC33067P 数据表(HTML) 1 Page - ON Semiconductor

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© Semiconductor Components Industries, LLC, 2005
October, 2005 − Rev. 11
1
Publication Order Number:
MC34067/D
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.
Features
Zero Voltage Switch Resonant Mode Operation
Variable Frequency Oscillator with a Control Range
Exceeding 1000:1
Precision One−Shot Timer for Controlled Off−Time
Internally Trimmed Bandgap Reference
4.0 MHz Error Amplifier
Dual High Current Totem Pole Outputs
Selectable Undervoltage Lockout Thresholds with Hysteresis
Enable Input
Programmable Soft−Start Circuitry
Low Startup Current for Off−Line Operation
Pb−Free Packages are Available*
Figure 1. Simplified Block Diagram
Noninverting
Input
11
8
6
16
3
2
1
OSC Charge
Enable /
UVLO Adjust
VCC
15
5
14
12
13
Vref UVLO
Error
Amp
VCC UVLO /
Enable
Fault Detector/
Latch
2.5 V
Clamp
Soft−Start
One−Shot
Output B
Inverting Input
Soft−Start
7
Error Amp
Output
One−Shot
Oscillator
Control Current
OSC RC
9
Ground
4
Fault Input
10
Pwr GND
Output A
Vref
Variable
Frequency
Oscillator
Steering
Flip−Flop
5.0 V
Reference
*For additional information on our Pb−Free strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
MARKING
DIAGRAMS
x
= 3 or 4
A
= Assembly Location
WL = Wafer Lot
YY = Year
WW = Work Week
G
= Pb−Free Package
PDIP−16
P SUFFIX
CASE 648
1
16
SOIC−16W
DW SUFFIX
CASE 751G
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
PIN CONNECTIONS
(Top View)
Vref
OSC Charge
OSC RC
OSC Control Current
GND
Error Amp Out
Inverting Input
Noninverting Input
One−Shot RC
VCC
Drive Output B
CSoft−Start
Enable/UVLO
Adjust
Drive Output A
Power GND
Fault Input
http://onsemi.com
16
1
MC3x067DW
AWLYYWWG
See detailed ordering and shipping information in the package
dimensions section on page 2 of this data sheet.
ORDERING INFORMATION
16
1
MC3x067P
AWLYYWWG
16
1


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