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44608P75 반도체 회로 부품 판매점

MC44608P75



ON Semiconductor 로고
ON Semiconductor
44608P75 데이터시트, 핀배열, 회로
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
December, 2010 -- Rev. 10
1
Publication Order Number:
MC44608/D


44608P75 데이터시트, 핀배열, 회로
MC44608
Demag
Vi
DMG +
-- 50 mV
/20 mV
1
>24 mA >120 mA
UVLO2
8
9 mA
Startup
Source
1
S1
2
Isense
Latched off Phase
Demag
Logic
Output
Latched off
Phase
Startup
200
0
mPAhase SwPihtcahsieng
Startup
Phase
Startup Phase
V CC
Switching Phase Management
OVP
2 mS
UVLO1
UVLO2
& OUT Disable
DMG
&
Standby
Standby
Management
OSC
Enable
OSC
OC NOC
Leading Edge
Blanking
Output
&
Clock
+
PWM
--
VPWM
&
&
S
PWM
Thermal
Shutdown
Latch
RQ
Buffer
+CS
--
1V
4 kHz Filter
Latched off Phase
Standby
Regulation
&
S2
S3
Block
Switching Phase
Figure 1. Representative Block Diagram
6
VCC
5
Driver
4
GND
3
Control
Input
ORDERING INFORMATION
Device
MC44608P40G
MC44608P75G
Switching Frequency
40 kHz
75 kHz
Package
PDIP--8
(Pb--Free)
PDIP--8
(Pb--Free)
Shipping
50 Units / Rail
50 Units / Rail
MAXIMUM RATINGS
Rating
Symbol
Value
Unit
Total Power Supply Current
ICC 30 mA
Output Supply Voltage with Respect to Ground
VCC
16 V
All Inputs except Vi
Vinputs
--1.0 to +16
V
Line Voltage Absolute Rating
Vi 500 V
Recommended Line Voltage Operating Condition
Vi 400 V
Power Dissipation and Thermal Characteristics
Maximum Power Dissipation at TA = 85C
Thermal Resistance, Junction--to--Air
Operating Junction Temperature
PD
RθJA
TJ
600 mW
100 C/W
150 C
Operating Ambient Temperature
TA
--25 to +85
C
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
http://onsemi.com
2




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