Electronic Components Datasheet Search
  English  ▼

Delete All
ON OFF
ALLDATASHEET.COM

X  

Preview PDF Download HTML

MC44605 Datasheet(PDF) 1 Page - ON Semiconductor

Part No. MC44605
Description  High Safety, Latched Mode, GreenLine TM PWM Controller for (Multi) Synchronized Applications
Download  20 Pages
Scroll/Zoom Zoom In 100% Zoom Out
Maker  ONSEMI [ON Semiconductor]
Homepage  http://www.onsemi.com
Logo 

MC44605 Datasheet(HTML) 1 Page - ON Semiconductor

 
Zoom Inzoom in Zoom Outzoom out
 1 / 20 page
background image
© Semiconductor Components Industries, LLC, 2006
June, 2006 − Rev. 5
1
Publication Order Number:
MC44605/D
MC44605
High Safety, Latched Mode,
GreenLine
t PWM Controller
for (Multi) Synchronized
Applications
The MC44605 is a high performance current mode controller that is
specifically designed for off−line converters. This circuit has several
distinguishing features that make it particularly suitable for
multisynchronized monitor applications.
The MC44605 synchronization arrangement enables operation from
16 kHz up to 130 kHz. This product was optimized to operate with
universal mains voltage, i.e., from 80 V to 280 V, and its high current
totem pole output makes it ideally suited for driving a power MOSFET.
The MC44605 protections enable a well−controlled and safe power
management. Four major faults while detected, activate the analogic
counter of a disabling block designed to perform a latched circuit
output inhibition.
Features
Pb−Free Package is Available*
Current Mode Controller
Current Mode Operation up to 250 kHz Output Switching Frequency
Inherent Feed Forward Compensation
Latching PWM for Cycle−by−Cycle Current Limiting
Oscillator with Precise Frequency Control
Externally Programmable Reference Current
Secondary or Primary Sensing (Availability of Error Amplifier Output)
Synchronization Facility
High Current Totem Pole Output
Vcc Undervoltage Lockout with Hysteresis
Low Output dV/dT for Low EMI Radiations
Low Startup and Operating Current
Safety/Protection Features
Soft−Start Feature
Demagnetization (Zero Current Detection) Protection
Overvoltage Protection Facility against Open Loop
EHT Overvoltage Protection (E.H.T.OVP): Detection of too High
Synchronization Pulses
Winding Short Circuit Detection (W.S.C.D.)
Limitation of the Maximum Input Power (M.P.L.): Calculation of
Input Power for Overload Protection
Overheating Detection (O.H.D.): to Prevent the Power Switch from
an Excessive Heating
Latched Disabling Mode
When one of the following faults is detected: EHT overvoltage,
Winding Short Circuit (WSCD), a too high input power (M.P.L.),
power switch overheating (O.H.D.), an analogic counter is activated
If the counter is activated for a time that is long enough, the circuit
gets definitively disabled. The latch can only be reset by making
decrease the Vcc down to about 3.0 V, i.e., practically by unplugging
or turning off the SMPS.
*For additional information on our Pb−Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting
Techniques Reference Manual, SOLDERRM/D.
Device
Package
Shipping
ORDERING INFORMATION
MC44605P
PDIP−16
25 Units/Rail
PDIP−16
P SUFFIX
CASE 648
1
MARKING
DIAGRAM
A
= Assembly Location
WL
= Wafer Lot
YY
= Year
WW
= Work Week
G
= Pb−Free Package
PIN CONNECTIONS
116
13
12
11
10
9
2
3
4
5
6
7
8
(Top View)
VCC
VC
Output
Overheating
Detection
Current Sense Input
Demagnetization
Detection Input
Rref
Sync and
EHTOVP Input
GND
Max Power Limitation
Osc Capacitor (CT)
Soft−Start Input
Disabling Block (Cext)
Error Amp Output
15
14 Voltage Feedback Input
WSCD* Program
*Winding Short Circuit Detection
MC44605P
AWLYYWWG
1
16
MC44605PG
PDIP−16
(Pb−Free)
25 Units/Rail
http://onsemi.com


Html Pages

1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  17  18  19  20 


Datasheet Download




Link URL




Privacy Policy
ALLDATASHEET.COM
Does ALLDATASHEET help your business so far?  [ DONATE ]  

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Alldatasheet API   |   Link Exchange   |   Manufacturer List
All Rights Reserved© Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn