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MC1458P1
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Pinout/Connection Diagram

mc1458p1 Circuit
Switching regulator design meets requirements for cable television systems where small size, low weight, and high efficiency are prime considerations. Circuit operates above 18 kHz either from 40-60 V 60-Hz square-wave source (CATV power line from ferroresonant transformer) or from DC standby source. Control circuit consists of dual apamp and linear IC timer used to vary ON time of 2N6546 power transistor. At start-up, Q4 is saturated and full input voltage is applied to primary of power transformer T1. Current then ramps up linearly until 04 is switched off by opamps Al and A2 and timer A3. Power transistor is operated between saturation and OFF state at above 18 kHz, with ON time varied while OFF time is fixed, to maintain constant output voltage as sensed by Al.-J. Nappe and N. Wellenstein, "An 80-Watt Switching Regulator for CATV and Industrial Applications," Motorola, Phoenix, AZ, 1975, AN-752, p 5.

 

Supplier

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  Part Number Mfg Pack D/C Qty Note
MC1458P1 MOT DIP N/A 2000
  JY(HK)ELECTRONICS CO.,LTD Hong Kong
Contact: Ms. Claire Huang   MSN:claire-jy@hotmail.com Tel: 86-755-82887756 Fax: 86-755-82886700
MC1458P1 MOTOROLA PDIP 06+ 19805
  Mingar Electronic (HK) Limited China (Mainland)
Contact: Ms. Kaisy   MSN:mingar.hk@gmail.com Tel: 86-755-82767182 Fax: 86-755-82767423
MC1458P1 MOTOROLA DIP 03+ 19 NEW IN STOCK
  HY (HK) IC LIMITED China (Mainland)
Contact: Ms. Julie Chen   MSN:julie_ic@hotmail.com Tel: 86-755-82535765 Fax: 86-755-82535755
MC1458P1 MOTO 10+ 1540
  Goldenway Electronic Limited Company Hong Kong
Contact: Ms. sarah   Tel: 0086-755-82535329 Fax: 0086-755-
MC1458P1 MOT DIP 50
  Golden Source Electronics Intl Limited China (Mainland)
Contact: Ms. sara   MSN:incomponent@hotmail.com Tel: 86-0755-83005325 Fax: 86-0755-83005322
MC1458P1 MOT DIP N/A 100
  Aslan Internatinal Trade Co., Limited China (Mainland)
Contact: Mr. David King   MSN:Aslan0908@live.com Tel: 86-754-84439661 Fax: 86-754-84439661
MC1458P1 MOT DIP 06+ 382 instock,advantage price,good quality,
  Big Seashell Electronic Co. China (Mainland)
Contact: Mr. Jayco   MSN:jayco.bigseashell@hotmail.com Tel: +86-189-2479-1245 Fax: +86-755-8253-6827
MC1458P1 MOT 0612+ 2500
  HK Truly Electronics Tech Co.,LTD China (Mainland)
Contact: Ms. Candy   MSN:sarryx@hotmail.com Tel: 86-755-33071327 Fax: 86-755-83011657
MC1458P1 MOT 2002+ 11+ DIP-8
  BONASE(HK) ELECTRONICS CO., LIMITED COMPANY Hong Kong
Contact: Mr. Vincent   MSN:bonasehong@hotmail.com Tel: 0755-8257-9312 Fax: 0755-8323-9040
MC1458P1 MOTOROLA DIP/8 106 new & original stock
  HITECH SEMICONDUCTOR CO.,LTD China (Mainland)
Contact: Mr. Berry   MSN:hitechsemi@hotmail.com Tel: 0755-82567552/00852-81982345 Fax: 86-755-22140456
MC1458P1 MOTO DIP N/A 2010 New original in stock
  Xing Cheng Electronics Co.,Ltd China (Mainland)
Contact: Mr. Guo   MSN:stxcdz@hotmail.com MSN:guopen@live.com Tel: 86-0754-84462652 Fax: 86-0754-84462652
MC1458P1 MC DIP 99+ 25 new and original part instock
  Goldensand Electronic Co., Ltd China (Mainland)
Contact: Mr. sam   MSN:goldensand2@hotmail.com Tel: 86-0755-83286526 Fax: 86-0755-82539822
MC1458P1 MOTO DIP 501
  HONGKONG XUMEI ELECTRONICS CO. LIMITED China (Mainland)
Contact: Mr. Kate Fan   MSN:xumeidz002@hotmail.com Tel: 86-755-83267283 Fax: 86-755-83266796
MC1458P1 MOTO N/A N/A 2150 DIP-8
  HK KINGLION ELECTRONICS LIMITED China (Mainland)
Contact: Ms. candy   MSN:kinglion2@live.cn Tel: 86-755-82510626 Fax: 86-755-82510626
MC1458P1 MOTOROLA 9011 100
  LZ Electronics,Limited China (Mainland)
Contact: Mr. Leo   MSN:sales.lzelectronics@hotmail.com Tel: 86-755-81780037 Fax: 86-755-61641080
MC1458P1 MOTOROLA DIP8 103
  Rong Fa Electronics China (Mainland)
Contact: Ms. Ke   MSN:rfdz0754@126.com Tel: 086-0755-83041767/83372015 Fax: 086-0755-83041767
MC1458P1 SHARP DIP 09+
  TACT (H.K.) Century Co., Limited China (Mainland)
Contact: Mr. Toby   MSN:tactcentury@hotmail.com Tel: 0086-0755-83240085 Fax: 0086-0755-23944320
MC1458P1 MOT NULL 08+ 2500
  AN NUOKE(HONGKONG)ELECTRONIC TECHNOLOGY LIMITED China (Mainland)
Contact: Mr. Ouyang   MSN:annuokeic@hot.com Tel: 86-020-83190457 Fax: 86-020-83192721
MC1458P1 1980
  ARTIC WORLDWIDE CO.,LTD China (Mainland)
Contact: Ms. Angela   MSN:sales11@artic-tech.com Tel: 0086-27-87841219-8006 Fax: 0086-27-87310243
MC1458P1 DIP 3007
  Sourcing-IC Co.,Ltd. China (Mainland)
Contact: Ms. xu lisa   MSN:sales@sourcing-ic.com Tel: 86-10-89824697 Fax: 86-10-89527834
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PDF / Datasheet

MC1458P1 PDF Download

MC1458P1

File Size: 129647 KB
Manufacturer: ONSEMI [ON Semiconductor]

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