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UC3842AQTR Texas Instruments 1A SWITCHING CONTROLLER, 500kHz SWITCHING FREQ-MAX, PQCC20, PLASTIC, LCC-20 visit Texas Instruments
UC3842D8 Texas Instruments Current-Mode PWM Controller 8-SOIC 0 to 70 visit Texas Instruments Buy
UC3842AD Texas Instruments Current Mode PWM Controller 14-SOIC 0 to 70 visit Texas Instruments Buy
UC3842AN Texas Instruments Current Mode PWM Controller 8-PDIP 0 to 70 visit Texas Instruments Buy
UC3842DR-8 Texas Instruments 1A SWITCHING CONTROLLER, 500kHz SWITCHING FREQ-MAX, PDSO8 visit Texas Instruments
UC3842D8TRG4 Texas Instruments 1A SWITCHING CONTROLLER, 500kHz SWITCHING FREQ-MAX, PDSO8, GREEN, PLASTIC, MS-012AA, SOIC-8 visit Texas Instruments

pcb design on uc3842

Catalog Datasheet MFG & Type PDF Document Tags

UCC3813-4

Abstract: pcb design on uc3842 PACKAGES USING JEDEC PCB DESIGNS (SZZA017A - Updated: 09/10/1999) Table Data Updated on: 8/15/2000 , PCB DESIGNS (SZZA017A - Updated: 09/10/1999) Table Data Updated on: 8/15/2000 © Copyright 2000 , Voltage Reference Same Pinout as UCC3802, UC3842, and UC3842A DESCRIPTION The UCC3813-0/-1/-2/-3/-4/-5 , count. These devices have the same pin configuration as the UC3842/3/4/5 family, and also offer the , Thresholds track one another. Note 9: Guaranteed by design. Not 100% tested in production. PIN
Unitrode
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UCC3813-3 UCC3813-4 SSYA008 SLUA149 pcb design on uc3842 UC3842 pinout UC3842 soft start pcb for uc3842 UCC2813-0/-1/-2/-3/-4/-5 UC3842/3/4/5 UCC3813-5 UCC3813-2

buck uc3842 application note

Abstract: pcb design on uc3842 l l DN-42A DESIGN CONSIDERATIONS FOR TRANSITIONING FROM UC3842 TO THE NEW UCC3802 (SLUA084 - , Updated: 03/26/2000) DN-42A DESIGN CONSIDERATIONS FOR TRANSITIONING FROM UC3842 TO THE NEW UCC3802 , -42A DESIGN CONSIDERATIONS FOR TRANSITIONING FROM UC3842 TO THE NEW UCC3802 (SLUA084 - Updated: 12/02/1999) DN , Updated: 03/26/2000) DN-42A DESIGN CONSIDERATIONS FOR TRANSITIONING FROM UC3842 TO THE NEW UCC3802 , 1.5% Tolerance Voltage Reference · Same Pinout as UC3842 and UC3842A Part Number UCCx800 UCCx801
Texas Instruments
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SLUA158 SLUA081 U-133A buck uc3842 application note buck dc to dc uc3842 converter circuit diagram UC3842 sepic design SLUA213 flyback uc3842 application note UCC1800/1/2/3/4/5 UCC2800/1/2/3/4/5 UCC3800/1/2/3/4/5 UC1842/3/4/5 UCC1803 UCC1805

C5100 MOSFET

Abstract: UC3842 smps design focused on the transformer design and on the optimization of the driving circuit of the ESBT to allow , been given to the transformer design as well as to the ESBT driving circuit requirements. August , Fly-back transformer design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 3 , . . . 25 10 PCB layout and list of materials . . . . . . . . . . . . . . . . . . . . . . . . . , PCB layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
STMicroelectronics
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AN1889 C5100 MOSFET UC3842 smps design UC3842 step up converter UC3842 smps project flyback smps uc3845 STC03DE170HV

UC3842 smps design

Abstract: ferrite core transformer calculation formula focused on the transformer design and on the optimization of the driving circuit of the ESBT to allow , given to the transformer design as well as to the ESBT driving circuit requirements. 2. ESBT: THEORY , controller could directly drive the gate of the Power MOSFET. The On condition is guaranteed just by switching on the Power MOSFET. Being the On voltage drop on the Power MOSFETs negligible compared the VCE , related to the VCE(sat) plus the losses on the input of the power bipolar transistor itself. As a figure
STMicroelectronics
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BY259 ferrite core transformer calculation formula uc3845 smps transformer winding formula step down transformer tank design calculation transformer calculation formula TDK Ferrite Core PC40 STC03DE170 F-400V F-2000V F-100V F-50V F-25V

ferrite core transformer calculation formula

Abstract: UC3842 smps project the fly-back converter. Particular care has been put on the transformer design as well as on the ESBT , output circuit will be just mentioned. Most of the attention has been focused on the transformer design , important parameter in the transformer design since the input-to-output turn ratio strongly depends on it , . The On condition is guaranteed just by switching on the Power MOSFET. Being the On voltage drop on , transistor, so that the main conduction losses are those related to the VCE(sat) plus the losses on the
STMicroelectronics
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uc3842 smps Power Supply Schematic Diagram design of mosfet based power supply uc 3842 TRANSISTOR R2W flyback transformer design uc3842 Switching Power Supply Schematic Diagram uc3842 SMPS CIRCUIT DIAGRAM UC3842 1N4007 BA159 1N4148 STBYW81P200 SRW2924ED-E02V015

69063

Abstract: scr D106 mounted on the "Base PCB" to form the converter assembly. Associated with the converter module is an , Boost Converter Power Circuit Located on: Alpha 400 Base PCB Circuit Diagram No: 62039 Location: A1 , Circuit Located on: Alpha 400 Forward PCB Circuit Diagram No: 62040 Forward Converter Layout Drawing , of XU201 to turn the IC back ON again. (The UC3842 has hysteresis on its start up voltage such that , : A 200kHz clock is supplied from XU102B on the base PCB to XQ215 which buffers the clock and supplies
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XQ202 69063 scr D106 transistor D209 TH201 TRANSISTOR j115 uc3842 flyback constant current 385VDC XU201B XQ211 XU203F XD216 XC208

scr D106

Abstract: uc3842 half bridge mounted on the "Base PCB" to form the converter assembly. Associated with the converter module is an , Boost Converter Power Circuit Located on: Alpha 400 Base PCB Circuit Diagram No: 62039 Location: A1 , signal via T202. 2.2.5 Forward Converter Control Circuit Located on: Alpha 400 Forward PCB Circuit , back ON again. (The UC3842 has hysteresis on its start up voltage such that 17V is needed to power it , . 2.2.6 Inrush circuit Located on : Alpha 400 Base PCB Circuit Diagram No: 62039 Boost Layout Drawing
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uc3842 half bridge Alpha 600 Circuit Diagrams 500w power amplifier pcb diagram circuit diagram of alpha 400 power supply 500w two transistor forward converter flyback uc3842 sync XR212 XR233/XR234 XU205A XU204A XQ207 XQ209

uc3844ad

Abstract: LOGIC PACKAGES USING JEDEC PCB DESIGNS (SZZA017A - Updated: 09/10/1999) Table Data Updated on: 8/15 , # UVLO On 16.0V 8.5V 16.0V 8.5V UVLO Off 10.0V 7.9V 10.0V 7.9V Maximum Duty Cycle , version of the UC3842/3/4/5 family. Providing the necessary features to control current mode switched mode , Under-Voltage Lockout Section Start Threshold Min. Operation Voltage After Turn On PWM Section Maximum Duty , information to verify, before placing orders, that information being relied on is current and complete. All
Texas Instruments
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uc3844ad UC1842A/3A/4A/5A UC2842A/3A/4A/5A UC3842A/3A/4A/5A UC1842A UC1843A UC1844A

UC1845A-EP

Abstract: pcb for uc3842 Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are , improved version of the UC3842/3/4/5 family. Providing the necessary features to control current mode , members of this family are shown in the table below. PART NUMBER UC1842A UC1843A UC1844A UC1845A UVLO ON , information on enhanced plastic packaging. electrical characteristics, TA = ­55_C to 125_C for the , UC1842A, UC1844A Minimum operation voltage after turn on UC1843A, UC1845A TJ = 25_C TJ = 25_C 13 12 0.1 15
Texas Instruments
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UC1845A-EP 1843AME UC3842 dc dc design tool altera SOP top marking altera top marking UC1842A-EP UC1843A-EP UC1844A-EP SGLS134B SLYT010A

uc3842 gate driver

Abstract: pcb design on uc3842 design value of ON time can be adjusted by changing the timing capacitor. For a resistive load of value , -42A DESIGN CONSIDERATIONS FOR TRANSITIONING FROM UC3842 TO THE NEW UCC3802 (SLUA084 - Updated: 12/02/1999) DN , design of very low dropout linear regulators. Additionally, they feature an innovative duty-ratio current , threshold, a gated-astable timer is enabled, which switches the regulator's pass device off and on at an , is programmable on the UCx832 to allow higher peak current during the on-time of the pass device
Unitrode
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uc3842 gate driver Unitrode DN voltage regulator PWM 1999 transconductance sink UC1832/3 UC2832/3 UC3832/3 UC1832 UC1833 SLOA044
Abstract: drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available , improved version of the UC3842/3/4/5 family. Providing the necessary features to control current mode , members of this family are shown in the table below. PART NUMBER UC1842A UC1843A UC1844A UC1845A UVLO ON , operation voltage after turn on UC1843A, UC1845A TJ = 25_C TJ = 25_C 13 12 0.1 15 13.5 13.5 50 50 0.7 150 , product design. Customers are responsible for their products and applications using TI components. To Texas Instruments
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SGLS134 20K/KE SLVA087 SGZB004 SGLB002 SGYC003B

pcb for uc3842

Abstract: UCC2803 , standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at , Gate Drive Output 1.5% Tolerance Voltage Reference Same Pinout as UC3842 and UC3842A D PACKAGE (TOP , . Soft Start is implemented as a clamp on the maximum COMP voltage. CS CS is the input to the current , in most applications, no analog filtering (RC filter) is required on CS. Compared to an external RC , capacitance as small as possible. ground (GND) GND is reference ground and power ground for all functions on
Texas Instruments
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UCC2803 UCC2800/2801/2802/2803/2804/2805-EP SGLS135 UCC2803QDREP

UC3843 application note soft start

Abstract: 24v dc power supply with uc3842 70°C no copper area on PCB) 2 (Tamb = 70°C, 4cm copper area on PCB) 5 1.3 2 W W W ­40 , = 70°C 6cm copper area on PCB) Total Power Dissipation Tpins 90°C (SO20L) PIN CONNECTION (top , output current. INHIBIT INPUT TTL ­ Level Remote Inhibit. A logic high level on this input disables the , the oscillator RC network on all but one device. GROUND Common Ground Terminal FREQUENCY A series , gain characteristics. FEEDBACK INPUT The Feedback Terminal on the Regulation Loop. The output is
STMicroelectronics
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UC3843 application note soft start 24v dc power supply with uc3842 uc3843 12v to 24v uc3842 dc/dc converter 24v application circuits uc3844 schematic diagram 24v dc dc uc3843 step down L296P L296HT L296PHT UC2842/3/4/5-UC3842/3/4/5

8 pin ic 3844 for 5 volts

Abstract: PWM IC 8 PIN DIP 3844 has no effect on the loop gain/phase response. There are a few converter design considerations , on double sided PCB using ground plane techniques. Keep all traces and lead lengths to a minimum , Oscillators Trimmed for Precision Duty Cycle Clamp Improved Specs on ULVO and Hysteresis Provide More , Compatible with UC3842/43/44/45 Guaranteed Performance with Isense Pulled Below Ground Over-Temperature , thresholds of 16V (on) and 10V (off), making them ideal for off-line applications. The AS3843 and AS3845 have
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OCR Scan
AS3842 8 pin ic 3844 for 5 volts PWM IC 8 PIN DIP 3844 PIN CONFIGURATION OF IC 3844 3844 pwm circuits as3843 application note buck AS3842/3 UC3842/43/44/45 AS3842/3/4/5

Monitor switched mode Power supply 3842 PWM

Abstract: astec 3842 effect on the loop gain/phase response. There are a few converter design considerations associated with , breadboarding on double sided PCB using ground plane techniques. Keep all traces and lead lengths to a minimum , The AS3842 family of control ICs provide pin-for-pin replacement of the industry standard UC3842 , have exact 50% max duty cycle clamp Advanced oscillator design simplifies synchronization Improved specs on UVLO and hysteresis provide more predictable start-up and shutdown Improved 5 V regulator
Astec Semiconductor
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Monitor switched mode Power supply 3842 PWM astec 3842 AS3842 equivalent pin diagram of ic 3843 astec as3842 8 pin ic 3842 AS384 AS3844/5

hy 3842

Abstract: Astec Semiconductor as3842 clamp · AS3844/5 have exact 50% max duty cycle clamp · Advanced oscillator design simplifies synchronization · Improved specs on UVLO and hysteresis provide more predictable start-up and shutdown · Improved , provide pin-for-pin replacement of the industry standard UC3842 series of devices. The devices are , new flip-flop topology allows the duty cycle on the AS3844/5 to be guaranteed between 49 and 50%. The , (0 to 105° C). Ambient temperature must be derated based on power dissipation and package thermal
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OCR Scan
hy 3842 Astec Semiconductor as3842 ic 3843 external 0736 regulator PWM IC 8 PIN DIP 3843 3842 boost converter

as3843 application note buck

Abstract: pin diagram of ic 3843 's output voltage; but has no effect on the loop gain/phase response. There are a few converter design , breadboarding on double sided PCB using ground plane techniques. Keep all traces and lead lengths to a minimum , Specs on ULVO and Hysteresis Provide More Predictable Start up and Shut-down · Improved 5V Regulator Provides Better AC Noise Immunity · Pin-to-Pin Compatible with UC3842/43/44/45 · Guaranteed Performance , under-voltage lockout thresholds of 16V (on) and 10V (off), making them ideal for off-line applications. The
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OCR Scan
ic 3843 AS3842 Application Note JVC FLYBACK 3845 PWM power supply application note 3843 PWM power supply application note PIN CONFIGURATION OF IC 3845 AS3842/3843/3844/3845

AS3842 equivalent

Abstract: application notes AS3842 results, do all breadboarding on double Current Mode Controller sided PCB using ground plane , have exact 50% max duty cycle clamp · Advanced oscillator design simplifies synchronization · Improved specs on UVLO and hysteresis provide more predictable start-up and shutdown · Improved 5 V regulator , replacement of the industry standard UC3842 series of devices. The devices are redesigned to provide signifi , duty cycle on the AS3844/5 to be guaranteed between 49 and 50%. The AS3843/5 requires less than 0.5 mA
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OCR Scan
application notes AS3842 uc3842 constant current ASTEC RF modulator Astec Semiconductor as3842 application notes AS3844 of ic uc3842

ZD51

Abstract: , circuit design and PCB layout. It is strongly recommended to adopt a smaller R-C filter as shown in , component sizes and transformer design. MOSFET until the next UVLO(on). The LD7551C features , no extra design for the LD7551C. On/Off Control The LD7551C can be turned off by pulling COMP pin , . It also LEB (Leading-Edge Blanking) on CS Pin features protections like OLP (Over Load , (Over Voltage Protection) on Vcc Pin Furthermore, the frequency trembling function is to reduce
Leadtrend Technology
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ZD51 08SP005 2N60B SB540 EI-22 EL817B TL431

uc3842 AC-DC application

Abstract: L4998 . Based on a standard current mode PWM controller this device includes some features as programmable soft , ), precise maximum Duty Cycle Control, 100ns (typ) leading edge blanking on current sense, pulse by pulse , November 1995 â  7TH1S37 0077nb BDt â  y. This is advanced information on a new product new in , = 300KHz, C0=1nF 12 20 mA â a Quiescent Current (After turn on) 7.0 12 mA ish Shutdown Current 270 , control section with improved performance relative to the UC3842. Enhanced features include start-up bias
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OCR Scan
L4990 L4990A BCD60II L4998 uc3842 AC-DC application 24v to 12v dc power supply with uc3842 flyback transfer function CJ 4148 ZENER TI 81W DIP16 S016W L4990/L4990A
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