MC44608P100G 查看數據表（PDF） - ON Semiconductor
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MC44608P100G Datasheet PDF : 15 Pages
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MC44608
Few External Components
Reliable and Flexible
SMPS Controller
The MC44608 is a high performance voltage mode controller
designed for off--line converters. This high voltage circuit that
integrates the startup current source and the oscillator capacitor,
requires few external components while offering a high flexibility and
reliability.
The device also features a very high efficiency standby management
consisting of an effective Pulsed Mode operation. This technique
enables the reduction of the standby power consumption to
approximately 1.0 W while delivering 300 mW in a 150 W SMPS.
General Features
Integrated Startup Current Source
Lossless Off--Line Startup
Direct Off--Line Operation
Fast Startup
Flexibility
Duty Cycle Control
Undervoltage Lockout with Hysteresis
On Chip Oscillator Switching Frequency 40 or 75
Secondary Control with Few External Components
These are Pb--Free Devices*
Protections
Maximum Duty Cycle Limitation
Cycle by Cycle Current Limitation
Demagnetization (Zero Current Detection) Protection
“Over VCC Protection” Against Open Loop
Programmable Low Inertia Over Voltage Protection
Against Open Loop
Internal Thermal Protection
SMPS Controller
Pulsed Mode Techniques for a Very High Efficiency
Low Power Mode
Lossless Startup
Low dV/dT for Low EMI Radiations
*For additional information on our Pb--Free strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
http://onsemi.com
8
1
PDIP--8
P SUFFIX
CASE 626
MARKING DIAGRAM
8
MC44608Pxx
AWL
YYWWG
1
MC44608Pxx
A
WL
YY
WW
G
= Device Code
xx = 40 or 75
= Assembly Location
= Wafer Lot
= Year
= Work Week
= Pb--Free Package
PIN CONNECTIONS
Demag 1
Isense 2
Control Input 3
GND 4
8 Vi
7
6 VCC
5 Driver
(Top View)
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 2 of this data sheet.
Semiconductor Components Industries, LLC, 2010
1
December, 2010 -- Rev. 10
Publication Order Number:
MC44608/D
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