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UC28023 Datasheet PDF - Texas Instruments

Part NumberUC28023 Texas-Instruments
Texas Instruments Texas-Instruments
DescriptionECONOMY HIGH-SPEED PWM CONTROLLER
UC28023 Datasheet PDF : UC28023 pdf   
UC28023_13 image

DESCRIPTION
The UC28023 and UC28025 are fixed-frequency PWM controllers optimized for high-frequency switched-mode power supply applications. The UC28023 is a single output PWM for single-ended topologies while the UC28025 offers dual alternating outputs for double-ended and full bridge topologies.

FEATURES
■ Peak Current Mode, Average Current Mode,or Voltage Mode (with Feed-Forward) ControlMethods
■ Practical Operation Up to 1 MHz
■ 50-ns Propagation Delay to Output
■ ±1.5-A Peak Totem Pole Outputs
■ 9-V to 30-V Nominal Operational Voltage Range
■ Wide Bandwidth Error Amplifier
■ Fully Latched Logic with Double Pulse Suppression
■ Pulse-by-Pulse Current Limiting
■ Programmable Maximum Duty Cycle Control
■ Under--Voltage Lockout with Hysteresis
■ Trimmed 5.1-V Reference with UVLO
■ Same Functionality as UC3823 and UC3825


APPLICATIONS
■ Off-Line and DC/DC Power Supplies
■ Converters Using Voltage Mode, Peak Current Mode, or Average Current Mode Control Methods
■ Single-Ended or Two-Switch Topology Designs

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