L5991 Search Results

DIAC DB3

Abstract: diac DB3 application note STW14NK50 BYV52-200 opto diac asymmetrical half bridge controller ROE EYS 06 ROE capacitor EYS asymmetrical half bridge converter AN1621
Contextual Info: AN1621 APPLICATION NOTE 300W SECONDARY CONTROLLED TWO-SWITCH FORWARD CONVERTER WITH L5991A 1 INTRODUCTION A typical off-line isolated switch-mode power supply has the controller located on the primary side of the transformer, whereas the output voltages to be controlled and the housekeeping functions are located on the secondary side. Usually the voltage feedback signal is transferred to the primary controller by using an optocoupler

Contextual Info: S G S - T tiO M S O N 5 7 . L5991 RflD g[Si llLi(gra©lii!lD(gi PRIMARY CONTROLLER WITH STANDBY PRODUCT PREVIEW CURRENT-MODE CONTROL PWM SWITCHING FREQUENCY UP TO 1MHz LOW START-UP CURRENT (< 150pA HIGH-CURRENT OUTPUT DRIVE SUITABLE FOR POWER MOSFET (1 A)

T2A250V

Abstract: st 1n4148 DF04M rubycon mxr transil diode 600V 250v 25a 600w 600w power amplifier PCB layout TPS5904 flyback operate in both ccm and dcm l5991
Contextual Info: AN1134 APPLICATION NOTE  45W AC-DC ADAPTER WITH STANDBY FUNCTION by Claudio Adragna Purpose of this note is to provide a brief summary of the specifications and the functionalit y of the evaluation board implementing a 45W, wide-range mains AC-DC adapter, based on the L5991 current mode PWM controller.

roederstein eys 07

Abstract: ITACOIL 15v 60w smps AN1132 equivalent for BC337 90w flyback l5991 3c85 transformer smps bridge transformer itacoil L5991 equivalent
Contextual Info: AN1132 APPLICATION NOTE  90W SMPS FOR MONITORS WITH STANDBY FUNCTION by Claudio Adragna Purpose of this note is to provide a brief summary of the specifications and the functionality of the application board implementing a 90W multioutput SMPS for monitors, based on the L5991, current

Contextual Info: STEVAL-ISA033V1 55 W flyback SMPS demonstration board for alarm system based on the L5991 and STP12NK80Z Data Brief Features • Input voltage: – Vin: 88 - 300 Vac f: 50-60 Hz ■ Output voltages: – Vout1 = 13.8 V, Iout1 = 3 A – Vout2 = 25 V, Iout2= 200 mA

T3.15A 250V

Abstract: l5991a l5991 4N35 15 28 K bc337 darlington equivalent BCD60II 470 uF 50V RB capacitor 7Q51 npn bc337 signal transistor
Contextual Info: L5991 L5991A  PRIMARY CONTROLLER WITH STANDBY CURRENT-MODE CONTROL PWM SWITCHING FREQUENCY UP TO 1MHz LOW START-UP CURRENT < 120µA HIGH-CURRENT OUTPUT DRIVE SUITABLE FOR POWER MOSFET (1A) FULLY LATCHED PWM LOGIC WITH DOUBLE PULSE SUPPRESSION PROGRAMMABLE DUTY CYCLE

TL431 PLE

Abstract: L5991A l5991 VT234 t3.15a 250v BCD60II
Contextual Info: L5991 L5991A  PRIMARY CONTROLLER WITH STANDBY CURRENT-MODE CONTROL PWM SWITCHING FREQUENCY UP TO 1MHz LOW START-UP CURRENT < 120µA HIGH-CURRENT OUTPUT DRIVE SUITABLE FOR POWER MOSFET (1A) FULLY LATCHED PWM LOGIC WITH DOUBLE PULSE SUPPRESSION PROGRAMMABLE DUTY CYCLE

l5991

Abstract: L5991 equivalent 1N4148 AN1134 AN1215 BC327 L5993 design SMPS L5991
Contextual Info: AN1215 APPLICATION NOTE HOW TO HANDLE SHORT CIRCUIT CONDITIONS WITH ST’s ADVANCED PWM CONTROLLERS by Claudio Adragna & Giuseppe Gattavari Purpose of this note is to provide some advice on how to manage a short circuit condition for a switching converter controlled by ST’s advanced PWM controllers L5991 and L5993.

transistor equivalents for PN2222a

Abstract: schematic SMPS 24V 24v 5a smps flyback operate in both ccm and dcm smps 5kw diode 200v 30a SMPS 150w 24v pwm smps flyback 150w emitter switched bipolar transistor
Contextual Info: STEVAL-ISA007V1 High Power 3-Phase Auxiliary Power Supply Design Based on L5991 and ESBT STC08DE150 Data Brief Features • 3-phase 150W auxiliary dual output SMPS ■ Input: 400Vac +/- 20% ■ Output voltage 1: 24V, 6.25A @ 90kHz ■ Output voltage 2: 5V, 0.075A @ 90kHz

l5991a

Abstract: T3.15A 250V l5991 npn darlington 400v 15a BCD60II 5v1 diode zener nf913
Contextual Info: L5991 L5991A PRIMARY CONTROLLER WITH STANDBY • ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ . C U R R E N T -M O D E C O N TR O L PW M SW ITC H IN G F R E Q U E N C Y UP TO 1 M Hz LOW STA R T-U P C U R R E N T < 140|xA H IG H -C U R R EN T O U TP U T D R IVE SUITABLE

Contextual Info: r= 7 S G S -1 H 0 M S 0 N ^7#« [üifl[| œ[llL[ECTffi[i 0©i L5991 L5991A PRIMARY CONTROLLER WITH STANDBY PRODUCT PREVIEW • ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ CURRENT-MODE CONTROL PWM SWITCHING FREQUENCY UP TO 1MHz LOW S T A R T -U P C U R R E N T < 1 40|jA

Contextual Info: L5991 L5991A PRIMARY CONTROLLER WITH STANDBY • ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ CURRENT-MODE CONTROL PWM SWITCHING FREQUENCY UP TO 1MHz LOW START-UP CURRENT < 140pA HIGH-CURRENT OUTPUT DRIVE SUITABLE FOR POWER MOSFET (1 A) FULLY LATCHED PWM LOGIC WITH DOU­

l6561 flyback pfc led

Abstract: schematic diagram ac-dc supply Circuit diagram of 1W LED drive l6561 BC547 application notes ac-dc adapter l5991 Circuit diagram of 1W LED drive input 220vac BC547 proportional controller R25A an-1537
Contextual Info: AN1537 APPLICATION NOTE A SIMPLE TRICK ENHANCES L5991’s STANDBY FUNCTION by C. Adragna and G. Gattavari This application notes describes a simple technique that allows improving the Standby function of the advanced PWM controller L5991. The price to pay for that is the addition of just two resistors and two

Contextual Info: STEVAL-ISA032V1 60 W forward converter demonstration board for fiscal cash register based on the L5991 and STP10NK60Z Data Brief Features • Input voltage: VIN: 88 - 265 Vac – frequency: 50-60 Hz ■ Output voltage: VOUT = 9 V ■ Output current: IOUT = 5.5 A 6 A peak

Motorola, AN1049

Abstract: optocoupler basics inkjet printhead l5991 MC44603 csp-k DIODE BZV ST L5991 mc44603 startup AN1049 motorola
Contextual Info: AN1049 APPLICATION NOTE MINIMIZE POWER LOSSES OF LIGHTLY LOADED FLYBACK CONVERTERS WITH THE L5991 PWM CONTROLLER by Claudio Adragna The L5991 PWM controller is particularly suitable for SMPS of equipment that must comply with standards concerning energy saving. The device, optimized for flyback topology, monitors the power

TL431 PC817

Abstract: l5991 TT 2222 PC817 "thermal printer" schematic tl431 and pc817 transistor tt 2222 tt 2222 Datasheet 1N4148 STP10NK60Z
Contextual Info: STEVAL-ISA032V1 60 W forward converter demonstration board for fiscal cash register based on the L5991 and STP10NK60Z Data Brief Features • Input voltage: VIN: 88 - 265 Vac – frequency: 50-60 Hz ■ Output voltage: VOUT = 9 V ■ Output current: IOUT = 5.5 A 6 A peak

smps 5kw

Abstract: schematic SMPS 24V NPN transistor for switching applications, 400V flyback operate in both ccm and dcm l5991 SMPS 150w 24v transistor equivalents for PN2222a emitter switched bipolar transistor flyback 150w STEVAL-ISA007V1
Contextual Info: STEVAL-ISA007V1 High power 3-phase auxiliary power supply evaluation board Based on L5991 and ESBT STC08DE150HV Preliminary Data Features • 3-phase 150W auxiliary dual output SMPS ■ Input: 400Vac +/- 20% ■ Output voltage 1: 24V, 6.25A @ 90kHz ■ Output voltage 2: 5V, 0.075A @ 90kHz

schematic diagram dc-dc flyback converter

Abstract: 3.2 zener diode OF SGS-THOMSON
Contextual Info: T S G S -T H O M S O N ^/ =7 M« Rffl[] g[^(Q [l[L[Igir[K]MD(gi L5991 PRIM ARY CONTRO LLER W ITH STANDBY PRODUCT PREVIEW • ■ ■ ■ ■ ■ ■ ■ . ■ ■ ■ ■ ■ ■ CURRENTT-MODE CONTROL PWM SWITCHING FREQUENCY UP TO 1MHz LOW START-UP CURRENT (< 150pA)

L5991A

Abstract: STD2N50 BCD60II L5991 mains filter
Contextual Info: L5991 L5991A PRIMARY CONTROLLER WITH STANDBY PRODUCT PREVIEW CURRENT-MODE CONTROL PWM SWITCHING FREQUENCY UP TO 1MHz LOW START-UP CURRENT < 140µA HIGH-CURRENT OUTPUT DRIVE SUITABLE FOR POWER MOSFET (1A) FULLY LATCHED PWM LOGIC WITH DOUBLE PULSE SUPPRESSION

Contextual Info: L5991 L5991A PRIMARY CONTROLLER WITH STANDBY CURRENT-MODE CONTROL PWM SWITCHING FREQUENCY UP TO 1MHz LOW START-UP CURRENT < 120µA HIGH-CURRENT OUTPUT DRIVE SUITABLE FOR POWER MOSFET (1A) FULLY LATCHED PWM LOGIC WITH DOUBLE PULSE SUPPRESSION PROGRAMMABLE DUTY CYCLE

l5991

Abstract: T3.15A 250V 500C 500KHZ BCD60II L4981A L5991D
Contextual Info: SGS-THOMSON L5991 M g[M Si TT[sM O (§i PRIMARY CONTROLLER WITH STANDBY PRO DU CT PREVIEW • ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ . C U R R E N T -M O D E C O N TR O L PW M SW ITC H IN G F R E Q U E N C Y UP TO 1 M Hz LOW STA R T-U P C U R R E N T (< 150|xA

L5991A

Abstract: l5991 T3.15A 250V 500KHZ BCD60II L5991AD
Contextual Info: - , L5991 L5991A S G S -T H O M S O N k7 # . RfflDtgœHILIÊ'înSORÔDtgS PRIMARY CONTROLLER WITH STANDBY P R O D U C T P R E V IE W • ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ . C U R R E N T -M O D E C O N TR O L PW M SW ITC H IN G F R E Q U E N C Y UP TO 1 M Hz

nf913

Abstract: L5991A L5991 D97IN507 T3.15A 250V 500KHZ BCD60II
Contextual Info: - , L5991 L5991A S G S -T H O M S O N k7 # . RfflDtgœHILIÊ'înSORÔDtgS PRIMARY CONTROLLER WITH STANDBY P R O D U C T P R E V IE W • ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ . C U R R E N T -M O D E C O N TR O L PW M SW ITC H IN G F R E Q U E N C Y UP TO 1 M Hz

L5991A

Abstract: BYW-100-100 l5991 BCD60II L5991D mos fet 4925
Contextual Info: L5991 L5991A  PRIMARY CONTROLLER WITH STANDBY CURRENT-MODE CONTROL PWM SWITCHING FREQUENCY UP TO 1MHz LOW START-UP CURRENT < 120µA HIGH-CURRENT OUTPUT DRIVE SUITABLE FOR POWER MOSFET (1A) FULLY LATCHED PWM LOGIC WITH DOUBLE PULSE SUPPRESSION PROGRAMMABLE DUTY CYCLE