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UC384X Datasheet

Part Manufacturer Description PDF Type
UC384xA Microsemi PWM Controller Original
UC384XBD Motorola HIGH PERFORMANCE CURRENT MODE CONTROLLERS Original
UC384XBD On Semiconductor HIGH PERFORMANCE CURRENT MODE CONTROLLERS Original
UC384XBD1 Motorola HIGH PERFORMANCE CURRENT MODE CONTROLLERS Original
UC384XBD1 On Semiconductor HIGH PERFORMANCE CURRENT MODE CONTROLLERS Original
UC384XBD1R2 On Semiconductor HIGH PERFORMANCE CURRENT MODE CONTROLLERS Original
UC384XBDR2 On Semiconductor HIGH PERFORMANCE CURRENT MODE CONTROLLERS Original
UC384XBN Motorola HIGH PERFORMANCE CURRENT MODE CONTROLLERS Original
UC384XBN On Semiconductor HIGH PERFORMANCE CURRENT MODE CONTROLLERS Original
UC384xBNG On Semiconductor HIGH PERFORMANCE CURRENT MODE CONTROLLERS Original
UC384XBVD Motorola HIGH PERFORMANCE CURRENT MODE CONTROLLERS Original
UC384XBVD On Semiconductor HIGH PERFORMANCE CURRENT MODE CONTROLLERS Original
UC384XBVD1 Motorola HIGH PERFORMANCE CURRENT MODE CONTROLLERS Original
UC384XBVD1 On Semiconductor HIGH PERFORMANCE CURRENT MODE CONTROLLERS Original
UC384XBVD1R2 On Semiconductor HIGH PERFORMANCE CURRENT MODE CONTROLLERS Original
UC384XBVDR2 On Semiconductor HIGH PERFORMANCE CURRENT MODE CONTROLLERS Original
UC384XBVN Motorola HIGH PERFORMANCE CURRENT MODE CONTROLLERS Original
UC384XBVN On Semiconductor HIGH PERFORMANCE CURRENT MODE CONTROLLERS Original

UC384X

Catalog Datasheet MFG & Type PDF Document Tags

UC2845* application note

Abstract: UC384x application 606 UC284X, UC384X, UC384xY CURRENT-MODE PWM CONTROLLERS SLVS038B - JANUARY 1989 - REVISE D , , UC384X, UC384xY CURRENT-MODE PWM CONTROLLERS SLVS038B - JANUARY 1989 - REVISED AUGUST 1995 , BOX 655303 · DALLAS, TEXAS 75265 UC284X, UC384X, UC384xY CURRENT-MODE CONTROLLERS SLVSQ38B - , UC284X, UC384X, UC384xY CURRENT-MODE PWM CONTROLLERS SLVS038B - JANUARY 1989 - REVISED AUGUST 1995 , DALLAS, TEXAS 75265 UC284X, UC384X, UC384xY CURRENT-MODE CONTROLLERS SLVS038B - JANUARY 1989 -
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UC2845* application note UC384x application UNITRODE UC2844 12Vto25V UC2844P UC3844P UC384 UC2842

UC38430

Abstract: UC2845* application note ï»¿â  UC284X, UC384X, UC384xY I CURRENT-MODE PWM CONTROLLERS B_SLVS036B-JANUARY 1989 , , UC384X, UC384xY I CURRENT-MODE PWM CONTROLLERS SLVS038B - JANUARY 1969 - REVISED AUGUST 1995 , Service CopyRight 2003 â  UC284X, UC384X, UC384xY I CURRENT-MODE PWM CONTROLLERS _SLVSQ38B - , characteristics similar to the UC384x. Thermal compression or ultrasonic bonding may be used on the doped aluminum , Service CopyRight 2003 UC284x, UC384x, UC384xY CURRENT-MODE PWM CONTROLLERS ^_SLVS038B-JANUARY
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UC38430 UC384xY UCx842 UCX844 uc38450 UC3845P 1989-REVISED UC2842- UC3842- UC284

UC384x application

Abstract: UC3845 dc dc applications UC284x, UC384x, UC384xY CURRENT-MODE PWM CONTROLLERS SLVS038B ­ JANUARY 1989 ­ REVISED AUGUST , . POST OFFICE BOX 655303 · DALLAS, TEXAS 75265 4­1 UC284x, UC384x, UC384xY CURRENT-MODE PWM , BOX 655303 · DALLAS, TEXAS 75265 8 VC OUTPUT POWER GROUNd UC284x, UC384x, UC384xY , , when properly assembled, displays characteristics similar to the UC384x. Thermal compression or , · DALLAS, TEXAS 75265 4­3 UC284x, UC384x, UC384xY CURRENT-MODE PWM CONTROLLERS SLVS038B ­
Texas Instruments
Original
UC3845 dc dc applications forward converter uc3844 uc3842 application circuit uc3844 applications UC2843P UC3844 application note

UC384x application

Abstract: UC3845 application notes UC284x, UC384x, UC384xY CURRENT-MODE PWM CONTROLLERS SLVS038B ­ JANUARY 1989 ­ REVISED AUGUST , . POST OFFICE BOX 655303 · DALLAS, TEXAS 75265 4­1 UC284x, UC384x, UC384xY CURRENT-MODE PWM , BOX 655303 · DALLAS, TEXAS 75265 8 VC OUTPUT POWER GROUNd UC284x, UC384x, UC384xY , , when properly assembled, displays characteristics similar to the UC384x. Thermal compression or , · DALLAS, TEXAS 75265 4­3 UC284x, UC384x, UC384xY CURRENT-MODE PWM CONTROLLERS SLVS038B ­
Texas Instruments
Original
UC3845 application notes UC3842s application note uc3845 UC2842D UC2843D UC2844D

UC284X

Abstract: UC3842D UC384x-series devices are characterized for operation from 0°C to 70°C. Please be aware that an important , UC284x, UC384x CURRENT-MODE PWM CONTROLLERS SLVS038D ­ JANUARY 1989 ­ REVISED JULY 1999 D D D D , VCC OUTPUT GND The UC284x and UC384x series of control integrated circuits provide the features , UC284x, UC384x CURRENT-MODE PWM CONTROLLERS SLVS038D ­ JANUARY 1989 ­ REVISED JULY 1999 AVAILABLE , . 2 POST OFFICE BOX 655303 · DALLAS, TEXAS 75265 UC284x, UC384x CURRENT-MODE PWM CONTROLLERS
Texas Instruments
Original

UC384x application

Abstract: astec application note cause incompatibility with some design techniques occasionally used with the UC384x. Any circuit forcing , UC384x. If the resonant network rings below about 0.6V, it can trigger our sync circuit, caus ing some , might be seen in a given power supply when a UC384x is replaced by an AS384x, or vice versa. Whether or , behavior of the control chip. AS384x/UC384x Compatibility Issues Application Note 4 cycle programming , . In particular, there are some methods of forcing a UC384x series part to synchronize to an external
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astec application note astec power supplies AS3844 AS384X astec 3842 ASTEC Application Note ONE AS384

ASTEC Application Note ONE

Abstract: astec APPLICATION NOTE UC384x. Any circuit forcing the R t /C t pin to ground may behave differently when the AS384x is substi tuted for a UC series part. In particular, there are some methods of forcing a UC384x series part to , inductance of the interconnect (or of the cap). This is more a problem on the AS384x than the UC384x. If the , might be seen in a given power supply when a UC384x is replaced by an AS384x, or vice versa. Whether or , behavior of the control chip. AS384x/UC384x Compatibility Issues Application Note 4 cycle programming
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AS284

LD7550BBN

Abstract: ld7550 COMP pin in UC384X), By connecting a photo-coupler to close the control loop and achieve the , photo-coupler to the COMP Fig. 14 pin of LD7550-B. The input stage of LD7550-B, like the UC384X, is with , usually needed in the typical UC384X application (Fig. 15). 1 × ( VCOMP â' 2VF ) 3 A pull-high , duty-cycle. As UC384X, It takes slope compensation from injecting the ramp signal from the RT/CT OUT
Leadtrend Technology
Original
LD7550BBN ld7550 LD7550BBL marking r4a LD7550 LD7550-B-DS-01

LD7552BN

Abstract: LD7552 external MOSFET Ground Voltage feedback pin (same as the COMP pin in UC384X), By connecting a , then reduce the power usually needed in the typical UC384X application (Fig. 9). consumption on , input stage of LD7552, like the UC384X, is with 2 diodes voltage offset then feeding into the , , the slope compensation is needed in the traditional UC384X design by injecting the ramp signal CS
Leadtrend Technology
Original
LD7552-DS-00 LD7552BN LD7552BS LD7552 application notes ld7552ds Leadtrend Technology
Abstract: GND FUNCTION Ground Voltage feedback pin (same as the COMP pin in UC384X), By connecting a 2 , usually needed in the typical UC384X application (Fig. 9). consumption on R1. By using CMOS process and , input stage of LD7552, like the UC384X, is with 2 diodes voltage offset then feeding into the , , the slope compensation is needed in the traditional UC384X design by injecting the ramp signal CS Leadtrend Technology
Original

UC1845

Abstract: UC284X < T a < 85°C fo r UC284X; 0 < Ta < 70°C fo r UC384X; VCc = 15V (Note 5); Rt = 10K; Ct = 3.3nF.) T a =T , Section Input Voltage Input Bias Current Av o l V p in 1 - 2.5V 2 .4 5 PARAMETER UC384X UNITS 1 MAX , for - 5 5 < T a < 125 cC for UC184X; - 2 5 < T a ^ 8 5 ° C for UC284X; 0 < T a < 70°C for UC384X; Vcc , 8.2 14.5 7.8 8.5 7.0 16 8.4 10 7.6 17.5 9.0 11.5 8 2 V V V V UC184X UC284X TYP. MAX. MIN. UC384X UNITS
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UC1845 500KH UC1842 UC1844 95VAC 130VAC

flyback uc3843

Abstract: u3844 < 70°C for UC384X; Vi = 15V (note 5); RT = 10K; CT = 3.3nF) Symbol Parameter Test Conditions UC284X UC384X Unit Min. Typ. Max. Min. Typ. Max. REFERENCE SECTION VREF Output Voltage Tj = , ) Symbol Parameter Test Conditions UC284X UC384X Min. Typ. Max. Min. Typ. Max. Unit
STMicroelectronics
Original
flyback uc3843 u3844 forward converter UC3843 off-line flyback regulator uc3845 power supply with uc2842 flyback uc3842 UC2842/3/4/5 UC3842/3/4/5 UC3845 UC2842/3/4/5-UC3842/3/4/5

TL494

Abstract: TL496 . 4-157 UC384x Current-Mode PWM Controllers . 4-157 P W M
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TL494 TL496 TL497A TL499A TL594 TL598 Controllers PWM Controllers tl494 pwm circuits Power Supply Controllers SG2524 SG3524

flyback uc3842

Abstract: u3844 < 70°C for UC384X; Vi = 15V (note 5); RT = 10K; CT = 3.3nF) Test Co nditions UC284X UC384X Min , ons UC284X UC384X Min. Typ . Max. Min . Typ. Max. Unit UNDER-VOLTAGE LOCKOUT SECTION
STMicroelectronics
Original
UC3843 circuit diagram uc3843 dc 5v power supply with uc3842 off-line flyback regulator uc3844 uc3842 circuit diagram 5v power supply with uc3842

flyback uc3842 power supply

Abstract: UC3842D UC384X ; V, = 15 V (Note 5) ; RT = 10 K ; CT = 3.3 nF) - â'" - â'" - Symbol Parameter Test Conditions UG184X 284X UC384X Unit Min. I Typ. | Max. Min. I Typ. | Max. REFERENCE , ] â'¢ Symbol Parameter Test Conditions UC184X UC284X UC384X Unit Min. I Typ. I Max, Min. I Typ
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flyback uc3842 power supply UC2843 UC3843J uc2845n 5-UC2842 off-line flyback regulator uc3842 UC1842/3/4/5 UC1843 UC1842/3/4/5-UC2842/3/4/5-UC3842/3/4/5 D02243 UC1842/3

LD7550

Abstract: sot-26 pwm controller LD7550, like the UC384X, is with 2 diodes voltage offset then feeding into the voltage divider with 1 , eliminate the need of R-C filter which is usually needed in the typical UC384X application (Fig. 9). 1 , stabilize the control loop, the slope compensation is needed in the traditional UC384X design by injecting
-
Original
sot-26 pwm controller ld7550 equivalent circuit diagram of variable dutycycle osc SOT26 PWM TL431 PWM controller sot-26 LD7550-DS-00
Abstract: specifications apply for -25 < Tamb < 85°C for UC2824X; 0 < 70°C for UC384X; Vi = 15V (note 5); Rt = 10K; C t = 3.3nF) Symbol Param eter UC284X Test C onditions UC384X Min. |T yp . ¡Max. Min , CHARACTERISTICS (continued) Param eter Sym bol UC284X Test C onditions UC384X Unit Min. |Typ -
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flyback uc3843

Abstract: off-line flyback regulator uc3845 < 70°C for UC384X; Vi = 15V (note 5); RT = 10K; CT = 3.3nF) Test Co nditions UC284X UC384X Min , Test Co nditi ons UC284X UC384X Min. Typ . Max. Min . Typ. Max. Unit UNDER-VOLTAGE
STMicroelectronics
Original
uc3843 flyback supply 5-UC3842 UC3843 12v to 16v uc3845 flyback 12v dc power supply with uc3845

u3844

Abstract: power supply with uc3842 with circuit diagram < ; 70°C for UC384X; Vi = 15V (note 5); Rt = 10K; Or = 3.3nF) Symbol Parameter Test Conditions REFERENCE SECTION V ref A V ref A V ref A V re f /A T UC284X UC384X Min. Typ. Max. Min. Typ. Max. 4.95 5.00 , ELECTRICAL CHARACTERISTICS (continued) Symbol Parameter Test Conditions UC284X UC384X Unit Min. Typ. Max
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power supply with uc3842 with circuit diagram pwm uc2842 uc3843 bl uc3843 pin diagram uc3842 AL pin diagram of as 3842 7R2R237
Abstract: UC384X), By connecting a photo-coupler to close the control loop and achieve the regulation. Pull this , is included in the UC384X, is with 2 diodes voltage offset then feeding into the input of CS , . 19 in the traditional UC384X design by injecting the ramp signal from the RT/CT pin through a , Line Compensation been As all the users of UC384X well know, it is usually need the Leadtrend Technology
Original
LD7520 LD7520-DS-02

st 3843B

Abstract: C3843B trends moving the UC384X into higher and higher frequency applications, the UC384XB Is guaranteed to
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st 3843B C3843B st 3842B C3842B 384xB Core Ferroxcube EC35-3C8 UC3842B UC2842B UC3843B SO-14 UCX842B UCX843B

UC3643

Abstract: UC3643B industry trends moving the UC384X into higher and higher frequency applications, the UC384XB is guaranteed
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2842B EC35-3C8 UC3643 UC3643B uc3842b equivalent voltage regulator ic UC3842B UC3842B application Z7157 26AWG EC35PCB1

st 3844b

Abstract: equivalent 3845b power supply , because of in dustry trends moving the UC384X into higher and higher fre quency applications, the UC384XB
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st 3844b equivalent 3845b power supply UC3844B application 3844B uc3844b application note equivalent transistor K 3531 UC3844B UC2844B UC3845B UCX844B UCX845B 1N5819
Abstract: 50 kHz. Also because of industry trends moving the UC384X into higher and higher frequency -
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35-3C 35PCB1

NCP1203D60R2

Abstract: ncp1203d6 ultra-compact Switchmode Power Supplies and represents an excellent candidate to replace the UC384X devices. Due , needed in UC384X based supplies: timing components, feedback devices, low-pass filter and startup device , more applications are requiring low no-load standby power, e.g. for AC-DC adapters, VCRs etc. UC384X , NCP1203 http://onsemi.com 558 NCP1203 Current-Mode Operation As the UC384X series, the NCP1203
ON Semiconductor
Original
NCP1203P60 NCP1203D60R2 NCP1203D60R2G NCP1203P100 ncp1203d6 MMBT3946 1N4007 NCP1203P40 NCP1203P40G NCP1203D40R2 NCP1203D40R2G
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