Details, datasheet, quote on part number: MC44605D
PartMC44605D
Category
Description
CompanyN.A.
DatasheetDownload MC44605D datasheet
  

 

Features, Applications
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High Safety Latched Mode GreenLineTM PWM Controller for (Multi)Synchronized Applications

The is a high performance current mode controller that is specifically designed for off­line converters. The MC44605 has several distinguishing features that make it particularly suitable for multisynchronized monitor applications. The MC44605 synchronization arrangement enables operation from 16 kHz to 130 kHz. This product was optimized to operate with universal ac mains voltage from 280 V, and its high current totem pole output makes it ideally suited for driving a power MOSFET. The MC44605 protections provide well controlled, safe power management. Safety enhancements detect four different fault conditions and provide protection through a disabling latch. Current or Voltage Mode Controller

HIGH SAFETY LATCHED MODE GREENLINETM PWM CONTROLLER FOR (MULTI)SYNCHRONIZED APPLICATIONS

Current Mode Operation to 250 kHz Output Switching Frequency Inherent Feed Forward Compensation Latching PWM for Cycle­by­Cycle 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 Undervoltage Lockout with Hysteresis Low Output dV/dT for Low EMI Low Startup and Operating Current PIN CONNECTIONS

VCC VC Output Gnd Max Power Limitation Over Heating Detection Current Sense Input Demagnetization Detection Input

Safety/Protection Features Soft­Start Feature Demagnetization (Zero Current Detection) Protection Overvoltage Protection Facility Against Open Loop EHT Overvoltage Protection (E.H.T.OVP): Protection Against Excessive Amplitude 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 Over Heating Detection (O.H.D.): to Prevent the Power Switch from Excessive Heating

16 Rref 15 WSCD* Program 14 Voltage Feedback Input 13 Error Amp Output 12 Disabling Block (Cext) 11 Soft­Start Input 10 Osc Capacitor (CT) 9 Sync and

Latched Disabling Mode When one of the following faults is detected: EHT overvoltage, Winding Short Circuit (WSCD), excessive input power (M.P.L.), power switch over heating (O.H.D.), a 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 removing and then re­applying power

Device MC44605P Operating Temperature Range to +85°C Package Plastic DIP

This document contains information on a product under development. Motorola reserves the right to change or discontinue thisIC product without notice. MOTOROLA ANALOG DEVICE DATA © Motorola, Inc. 1996 Issue 0

NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI 1982. 2. CONTROLLING DIMENSION: INCH. 3. DIMENSION L TO CENTER OF LEADS WHEN FORMED PARALLEL. 4. DIMENSION B DOES NOT INCLUDE MOLD FLASH. 5. ROUNDED CORNERS OPTIONAL. DIM INCHES MIN MAX BSC 0.050 BSC MILLIMETERS MIN MAX BSC 1.27 BSC

Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. "Typical" parameters which may be provided in Motorola data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including "Typicals" must be validated for each customer application by customer's technical experts. Motorola does not convey any license under its patent rights nor the rights of others. Motorola products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the Motorola product could create a situation where personal injury or death may occur. Should Buyer purchase or use Motorola products for any such unintended or unauthorized application, Buyer shall indemnify and hold Motorola and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that Motorola was negligent regarding the design or manufacture of the part. Motorola and are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal Opportunity/Affirmative Action Employer. How to reach us: USA / EUROPE / Locations Not Listed: Motorola Literature Distribution; P.O. Box 20912; Phoenix, Arizona or 602­303­5454 MFAX: RMFAX0@email.sps.mot.com ­ TOUCHTONE 602­244­6609 INTERNET: http://Design­NET.com

JAPAN: Nippon Motorola Ltd.; Tatsumi­SPD­JLDC, 6F Seibu­Butsuryu­Center, 3­14­2 Tatsumi Koto­Ku, Tokyo 135, Japan. 03­81­3521­8315 ASIA/PACIFIC: Motorola Semiconductors H.K. Ltd.; 8B Tai Ping Industrial Park, 51 Ting Kok Road, Tai Po, N.T., Hong Kong. 852­26629298


 

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