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TL3843P Specifications

Detailed technical information and Application Scenarios

Product Details

PartNumberManufactorQuantityAvailability
TL3843PTI420Yes

TL3843P is a high-performance current-mode PWM controller manufactured by Texas Instruments (TI).

The TL3843P is a high-performance current-mode PWM controller manufactured by Texas Instruments (TI). Below are the factual specifications, descriptions, and features from the Manufactor Datasheet:

Specifications:

  • Input Voltage Range: 7V to 30V (start-up), 7.9V to 30V (operating)
  • Reference Voltage: 5V ±1%
  • Switching Frequency: Up to 500kHz (adjustable with external components)
  • Output Duty Cycle: 0% to 100% (adjustable)
  • Operating Temperature Range: -40°C to 85°C
  • Package Type: 8-Pin PDIP (Plastic Dual In-Line Package)
  • Current Sensing: Peak Current Mode Control
  • Under-Voltage Lockout (UVLO): 7V (on), 7.9V (off)

Descriptions:

The TL3843P is a fixed-frequency pulse-width modulation (PWM) controller designed for DC-DC converter and power supply applications. It features current-mode control for improved loop response and simplified feedback compensation. The device includes an internal trimmed oscillator, a precision reference voltage, and high-gain error amplifier.

Features:

  • Current-Mode Control: Enhances line and load regulation.
  • Trimmed Oscillator: Provides precise frequency control.
  • High-Current Totem Pole Output: Suitable for driving power MOSFETs.
  • Low Start-Up Current: Typically 0.5mA.
  • Pulse-by-Pulse Current Limiting: Protects against overloads.
  • Automatic Feed-Forward Compensation: Improves transient response.
  • Internal Soft-Start: Reduces inrush current.

This information is based on the manufacturer's datasheet and technical documentation.

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