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參數(shù)資料
| 型號： | MC33067PG |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | High Performance Resonant Mode Controllers |
| 中文描述： | 1.5 A SWITCHING CONTROLLER, 2200 kHz SWITCHING FREQ-MAX, PDIP16 |
| 封裝： | LEAD FREE, PLASTIC, DIP-16 |
| 文件頁數(shù)： | 1/16頁 |
| 文件大小： | 544K |
| 代理商： | MC33067PG |
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 offline and dctodc
converter applications that utilize frequency modulated constant
offtime or constant deadtime control. These integrated circuits
feature a variable frequency oscillator, a precise retriggerable
oneshot timer, temperature compensated reference, high gain wide
bandwidth error amplifier, steering flipflop, 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 softstart circuitry, input
undervoltage lockout with selectable thresholds, and reference
undervoltage lockout. These devices are available in dualinline and
surface mount packages.
Features
Zero Voltage Switch Resonant Mode Operation
Variable Frequency Oscillator with a Control Range
Exceeding 1000:1
Precision OneShot Timer for Controlled OffTime
Internally Trimmed Bandgap Reference
4.0 MHz Error Amplifier
Dual High Current Totem Pole Outputs
Selectable Undervoltage Lockout Thresholds with Hysteresis
Enable Input
Programmable SoftStart Circuitry
Low Startup Current for OffLine Operation
PbFree Packages are Available*
Figure 1. Simplified Block Diagram
Noninverting
Input
11
8
6
16
3
2
1
OSC Charge
Enable /
UVLO Adjust
V
CC
15
5
14
12
13
V
ref
UVLO
Error
Amp
V
CC
UVLO /
Enable
Fault Detector/
Latch
2.5 V
Clamp
SoftStart
OneShot
Output B
Inverting Input
SoftStart
7
Error Amp
Output
OneShot
Oscillator
Control Current
OSC RC
9
Ground
4
Fault Input
10
Pwr GND
Output A
V
ref
Variable
Frequency
Oscillator
Steering
FlipFlop
5.0 V
Reference
*For additional information on our PbFree strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
MARKING
DIAGRAMS
x
A
WL = Wafer Lot
YY
= Year
WW = Work Week
G
= PbFree Package
= 3 or 4
= Assembly Location
PDIP16
P SUFFIX
CASE 648
1
16
SOIC16W
DW SUFFIX
CASE 751G
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
PIN CONNECTIONS
(Top View)
V
ref
OSC Charge
OSC RC
OSC Control Current
GND
Error Amp Out
Inverting Input
Noninverting Input
OneShot RC
V
CC
Drive Output B
C
SoftStart
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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