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uc3845a Datasheet PDF File

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					First Components International
Part No.	uc3845a
OCR Text	uc3845a high performance current mode controller l output deadtime adjustable from 50% to 70% l current mode operation to 500 khz l automatic feed forward compensation l latching pwm for cycleCbyCcycle current limiting l internally trimmed ...
Description	High Performance Current Mode Controller
File Size	250.41K / 6 Page	View it Online	Download Datasheet

					STMicroelectronics
Part No.	UC3842A
OCR Text	...gthresholds for the UC3843A and uc3845a are 8.5 V and 7.9V. The UC3842A and UC3843A can operate to dutycycles approaching100%.A range of the zeroto < 50 % is obtainedby theUC3844Aand uc3845aby the addition of an internal toggle flip flopwhi...
Description	HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER
File Size	117.34K / 15 Page	View it Online	Download Datasheet

					ST Microelectronics STMicroelectronics
Part No.	UC2843AN UC2842AN UC3842AD UC2845AD UC3844AD UC3844AN uc3845aD uc3845aN UC2842AD
OCR Text	... thresholds for the UC3843A and uc3845a are 8.5 V and 7.9V. The UC3842A and UC3843A can operate to duty cycles approaching 100%. A range of the zero to < 50 % is obtained by the UC3844A and uc3845a by the addition of an internal toggle flip...
Description	HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER
File Size	223.29K / 15 Page	View it Online	Download Datasheet

					ST Microelectronics SGS Thomson Microelectronics STMICROELECTRONICS[STMicroelectronics] http://
Part No.	UC3842AD1 UC3842AN UC3844AD1 UC3844AN UC3843A UC3843AD1 uc3845aD1 uc3845aN UC2845AD1 UC2845AN UC2844A UC2844AD1 UC2844AN UC2842A UC2842AD1 UC2843A UC2843AD1 UC2843AN UC3842A uc3845a UC3844A UC2845A UC2842AN UC3842 UC3843AN
OCR Text	...gthresholds for the UC3843A and uc3845a are 8.5 V and 7.9V. The UC3842A and UC3843A can operate to dutycycles approaching100%.A range of the zeroto < 50 % is obtainedby theUC3844Aand uc3845aby the addition of an internal toggle flip flopwhi...
Description	(UC3842A - uc3845a) HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER (UC2842A - UC2845A) HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER
File Size	127.69K / 15 Page	View it Online	Download Datasheet

					SGS Thomson Microelectronics
Part No.	AN1060
OCR Text	...o l4990a or l5991a uc3843a/b or uc3845a/b or l4981a l4955v5.1 100 m f 13 2 transformer specs: core: e20x10x6, 3c85 material or equivalent 0.5 mm air gap for a primary inductance of 1.7 mh n1: 2 series windings 66 t each, awg32 ( ? 0.24 mm)...
Description	FLYBACK CONVERTERS WITH THE L6561 PFC CONTROLLER
File Size	93.36K / 11 Page	View it Online	Download Datasheet

					First Components International First Components Intern...
Part No.	UC3843A-BW uc3845a-BW UC3842A-BW
OCR Text	...duty cycle. the uc3844a-bw and uc3845a-bw can operate within 50% duty cycle. the uc384xa-bw has start-up current 0.17ma (typ). the uc384xa-bw are revised uc384xam and differ by higher unity gain bandwidth of error amplifier. features...
Description	Current Mode PWM Controller Low Start-Up and Operating Current
File Size	919.22K / 10 Page	View it Online	Download Datasheet

					Estek Electronics Co. Ltd
Part No.	KA3842 KA3843 KA3844 KA3845
OCR Text	...% duty cycle. The 3844A(AM) and uc3845a(AM) can operate within 50% duty cycle. The 384XA(AM) has Start-Up Current 0.17mA (typ). Features * Low Start-Up and Operating Current * High Current Totem Pole Output * Undervoltage Lockout With H...
Description	fixed frequency current mode PWM controller
File Size	317.42K / 7 Page	View it Online	Download Datasheet

					Promax-Johnton Semiconductor ETC[ETC] List of Unclassifed Manufacturers
Part No.	PJ3844BCD PJ3844BCS PJ3845BCS PJ3844 PJ3844B PJ3845 PJ3845B PJ3845BCD
OCR Text	...holds are 1 8.4 V/7.6 V for the uc3845a The Vref comparator upper and lower thresholds are 3.6V/3.4V.The large hysteresis and low start-up current of the UC3844B makes it ideally suited in off-line converter applications where efficient boo...
Description	(PJ3844B / PJ3845B) High Performance Current Mode Controller
File Size	838.91K / 14 Page	View it Online	Download Datasheet

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