Microchip Technology, Inc. PWM Controller flyback or forward - Low start-up current (0.5mA max.) 500KHz op UC1843A

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 - UC1843A - Microchip Technology, Inc.
Chandler, AZ, United States
PWM Controller flyback or forward - Low start-up current (0.5mA max.) 500KHz op
UC1843A
PWM Controller flyback or forward - Low start-up current (0.5mA max.) 500KHz op UC1843A
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 UC1843A
Product Name PWM Controller flyback or forward - Low start-up current (0.5mA max.) 500KHz op
Package Type Other; ['N/A']
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