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ETC |
Current Mode PWM Power Converter |
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ETC |
CurrentMode PWM Controller • Low Start-Up and Operating Current • High Current Totem Pole Output • Undervoltage Lockout With Hysteresis • Operating Frequency Up To 300KHz (384XA) 500KHz (384XAM) BLOCK DIAGRAM (toggle flip flop used only in UC3844, UC3845) PIN CONNECTION (TO |
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ETC |
POWER SUPPLY PWM SUPERVISOR • • • • • • • • • • • • • • 3.3V / 5V e 12V Overvoltage Protection 3.3V / 5V / 12V Undervoltage Protection 3.3V / 5V / 12V Undervoltage Detection PP: Overcharge and Negative voltage protection Pulse Width Modulation (PWM) control device "Soft-Start" |
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ETC |
CurrentMode PWM Controller • Low Start-Up and Operating Current • High Current Totem Pole Output • Undervoltage Lockout With Hysteresis • Operating Frequency Up To 300KHz (384XA) 500KHz (384XAM) BLOCK DIAGRAM (toggle flip flop used only in UC3844, UC3845) PIN CONNECTION (TO |
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ETC |
CurrentMode PWM Controller • Low Start-Up and Operating Current • High Current Totem Pole Output • Undervoltage Lockout With Hysteresis • Operating Frequency Up To 300KHz (384XA) 500KHz (384XAM) BLOCK DIAGRAM (toggle flip flop used only in UC3844, UC3845) PIN CONNECTION (TO |
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ETC |
PWM Regulator Current Mode Control, Synchronous Rectifier Step-down Switching Mode ■Absolute Maximum Ratings • DIP 8 pin package • Input voltage range (VIN): VO + 3 to 18 V • Synchronous rectifier mode • High efficiency: 90% • Introduction of current mode contro |
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ETC |
Current Mode PWM Power Converter |
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ETC |
Primary side control high accuracy constant voltage / constant current PWM Controllers |
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ETC |
PWM Buck DC/DC Converter - Output voltage: 3.3V, 5V, 12V and adjustable output version - Adjustable version output voltage range, 1.23V to 37V+4% - 150Khz +15% fixed switching frequency - Voltage mode non-synchronous PWM control - Thermal-shutdown and current-limit protectio |
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ETC |
PWM controller ра; - цепей контроля выходных напряжений: - схемы формирования сигнала Power Good ; - схемы контроля сигнала PS _ ON и удаленного запуска блока питания. Функциональная схема ШИМ-контроллера LPG 899 представлена на рис.2. 1 Free Datasheet http://www. |
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ETC |
Current Mode PWM Power Converter |
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ETC |
Green Energy Saving Current Mode PWM Power Converter |
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ETC |
Current Mode PWM Controller ■ Extended Burst Mode Control For Improved ■Efficiency and Minimum Standby Power Design loss. Lower standby power and higher conversion ■Audio Noise Free Operation efficiency is thus achieved. VDD low startup current and ■External Programmable PWM |
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Texas Instruments |
Low-Power Current-Mode Push-Pull PWM •1 Dual-Output Drive Stages in Push-Pull Configuration • Current-Sense Discharge Transistor to Improve Dynamic Response • 130-μA Typical Starting Current • 1-mA Typical Run Current • Operation to 1 MHz • Internal Soft Start • On-Chip Error Amplifier |
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ETC |
Power Supply Supervisor + Regulator + PWM against over-voltage and over-power are implemented. It directly senses all the output rails for OVP without the need of external dividers. An innovated AC-signal sampling circuitry provides a sufficient power-down warning signal for PG. A built-in t |
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ETC |
PWM Controller Set-in high-voltage power switch tube of 700V and few peripheral components With the modulation of lock pulse width, the testing is according to the pulse limit current. With the function of output frequency reduction, the non-output power cons |
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ETC |
High Performance Current Mode PWM Switching Power Supply Controller RS=1Ω 53 57 61 3.5 % % Vcc=8V 8.6 4.0 9.4 4.3 1.6 2.0 55 2.8 9.2 4.5 10 2.4 80 mA uA mA V V V :,,。 5 6 -CN-02 6 6 -CN-02 |
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Texas Instruments |
BiCMOS Low-Power Current-Mode PWM Controller • Enhanced replacement for UCx84x and UCx84xA family with pin-to-pin compatibility • Operating frequency: 1MHz Maximum • 50μA Startup Current, 100μA Maximum • Low operating current: 2.3mA (at fOSC = 52kHz) • Fast, cycle-by-cycle overcurrent limiting: |
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Texas Instruments |
8-Pin Current Mode Push-Pull PWM Controllers D Programmable Slope Compensation D Internal Soft-Start on the UCC38083/4 D Cycle-by-Cycle Current Limiting D Low Start-Up Current of 120 µA and 1.5 mA Typical Run Current D Single External Component Oscillator Programmable from 50 kHz to 1 MHz D Hig |
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Texas Instruments |
8-Pin Current Mode Push-Pull PWM Controllers D Programmable Slope Compensation D Internal Soft-Start on the UCC38083/4 D Cycle-by-Cycle Current Limiting D Low Start-Up Current of 120 µA and 1.5 mA Typical Run Current D Single External Component Oscillator Programmable from 50 kHz to 1 MHz D Hig |
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Desde 2024. D4U Semiconductor.
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