Microchip Technology, Inc. PWM Controller flyback or forward - Low start-up current (0.5mA max.) 500KHz op UC2843A

Description
Control ICs provides all the necessary features to implement off-line fixed-frequency, current-mode switching power supplies with a minimum of external components. The current mode architecture demonstrates improved load regulation, pulse-by- pulse current limiting and inherent protection of the power supply output switch Additional Features Optimized For Off-Line Control Low Start-Up Current (<1mA) Automatic Feed Forward Compensation Trimmed Oscillator Discharge Current Pulse-By-Pulse Current Limiting Enhanced Load Response Characteristics - Double-Pulse Suppression High-Current Totem-Pole Output (1A Peak) Internally Trimmed Band-gap Reference 500kHz Operation Under-voltage Lockout: SG1843 - 8.4 volts Low Shoot-Through Current <75mA Over Temperature
Datasheet
Description
Control ICs provides all the necessary features to implement off-line fixed-frequency, current-mode switching power supplies with a minimum of external components. The current mode architecture demonstrates improved load regulation, pulse-by- pulse current limiting and inherent protection of the power supply output switch Additional Features Optimized For Off-Line Control Low Start-Up Current (<1mA) Automatic Feed Forward Compensation Trimmed Oscillator Discharge Current Pulse-By-Pulse Current Limiting Enhanced Load Response Characteristics - Double-Pulse Suppression High-Current Totem-Pole Output (1A Peak) Internally Trimmed Band-gap Reference 500kHz Operation Under-voltage Lockout: SG1843 - 8.4 volts Low Shoot-Through Current <75mA Over Temperature
Datasheet

Suppliers

Company
Product
Description
Supplier Links
PWM Controller flyback or forward - Low start-up current (0.5mA max.) 500KHz op - UC2843A - Microchip Technology, Inc.
Chandler, AZ, United States
PWM Controller flyback or forward - Low start-up current (0.5mA max.) 500KHz op
UC2843A
PWM Controller flyback or forward - Low start-up current (0.5mA max.) 500KHz op UC2843A
Control ICs provides all the necessary features to implement off-line fixed-frequency, current-mode switching power supplies with a minimum of external components. The current mode architecture demonstrates improved load regulation, pulse-by- pulse current limiting and inherent protection of the power supply output switch Additional Features Optimized For Off-Line Control Low Start-Up Current (<1mA) Automatic Feed Forward Compensation Trimmed Oscillator Discharge Current Pulse-By-Pulse Current Limiting Enhanced Load Response Characteristics - Double-Pulse Suppression High-Current Totem-Pole Output (1A Peak) Internally Trimmed Band-gap Reference 500kHz Operation Under-voltage Lockout: SG1843 - 8.4 volts Low Shoot-Through Current <75mA Over Temperature

Control ICs provides all the necessary features to implement off-line fixed-frequency, current-mode switching power supplies with a minimum of external components. The current mode architecture demonstrates improved load regulation, pulse-by- pulse current limiting and inherent protection of the power supply output switch

Additional Features

    • Optimized For Off-Line Control
    • Low Start-Up Current (<1mA)
    • Automatic Feed Forward Compensation
    • Trimmed Oscillator Discharge Current
    • Pulse-By-Pulse Current Limiting
    • Enhanced Load Response Characteristics -
    • Double-Pulse Suppression
    • High-Current Totem-Pole Output (1A Peak)
    • Internally Trimmed Band-gap Reference
    • 500kHz Operation Under-voltage Lockout: SG1843 - 8.4 volts
    • Low Shoot-Through Current <75mA Over Temperature
Supplier's Site Datasheet

Technical Specifications

  Microchip Technology, Inc.
Product Category IC Power Supplies
Product Number UC2843A
Product Name PWM Controller flyback or forward - Low start-up current (0.5mA max.) 500KHz op
Package Type SOIC; Other; ['SOIC', 'N/A']
Unlock Full Specs
to access all available technical data

Similar Products

Power - Power Supply ICs - OPTIREG™ linear - TLS205B0LD V33 - TLS205B0LD V33 - Infineon Technologies AG
Specs
Package Type Other; PG-TSON-10
Output Voltage 3.3 volts
Operating Temperature -40 to 125 C (-40 to 257 F)
View Details
Gates and Inverters - 74HCT14PW-Q100,118 - ODG (Origin Data Global)
Specs
Package Type Other; 14-TSSOP (0.173", 4.40mm Width)
Features Schmitt Trigger
Input Voltage 4.5 to 5.5 volts
View Details
ACDC Power Supply Control ICs - Model: FA5680N - Fuji Electric Corp. of America
Specs
Package Type Other; Intermittent opration
Output Voltage 11 to 24 volts
View Details
High Efficiency 1x/1.5x/2x Mode Charge Pump for White LED Applications - AAT3141 - Skyworks Solutions, Inc.
Specs
Package Type Other; TSOPJW-12
Input Voltage 2.7 to 5.5 volts
View Details